主页 / user-312515

Anton Charov's questions

Martin Hope
Anton Charov
Asked: 2021-10-19 23:33:41 +0800 CST
  • 1

有一条按规则建的线。“City [synonym1, .., synonymN] {link}, City2 [] {}]” 方括号和/或大括号中可能没有文本。例子

    String input = "Москва [Мск, Белокаменная] {msk.com}, Санкт-Петербург [Спб, Питер], Ростов, Калининград [Кёниг] {123.com}";

需要一个正则表达式来分成几部分

  1. 莫斯科 [Msk, Belokamennaya] {msk.com}
  2. 圣彼得堡 [圣彼得堡、圣彼得堡]
  3. 罗斯托夫
  4. 加里宁格勒 [Koenig] {123.com}

然后你需要将每一行划分为城市、同义词和链接

  1. 莫斯科
  2. [莫斯科时间，别洛卡门纳亚]
  3. {msk.com}

据我了解，这里需要输入表格前面文本的条件"?<=\\{*\\})||(?<=[*]), ?" 告诉我如何撰写？

java
Martin Hope
Anton Charov
Asked: 2020-10-08 23:12:38 +0800 CST
  • 0

有一个用逗号分隔的城市名称列表，以及方括号中名称的同义词列表。示例 -莫斯科 [莫斯科时间，别洛卡门纳亚]，圣彼得堡 [圣彼得堡，圣彼得堡]，罗斯托夫，加里宁格勒 需要分为名称列表

  1. 莫斯科 [莫斯科时间，别洛卡门纳亚]
  2. 圣彼得堡 [圣彼得堡、圣彼得堡]
  3. 罗斯托夫
  4. 加里宁格勒

分离所有标题很容易

    String input = "Москва [Мск, Белокаменная], Санкт-Петербург [Спб, Питер], Ростов";
    Pattern pattern = Pattern.compile("[\[,\]]");
    String[] words = pattern.split(input);

以及如何在方括号中提取名称和同义词？

java
Martin Hope
Anton Charov
Asked: 2020-09-08 17:06:30 +0800 CST
  • 1

spring boot 应用程序在 vaadin 上有一个 api 部分和一个接口。我想为 api 和 formlogin 界面配置 http basic。在这个选项中，只有http基本有效，formlogin不接受登录名和密码

protected void configure(HttpSecurity http) throws Exception {

        http.requestCache()
                .requestCache(new CustomRequestCache())
                .and().authorizeRequests()
                .antMatchers("/v2/api-docs",
                        "/configuration/ui",
                        "/swagger-resources/**",
                        "/configuration/security",
                        "/swagger-ui.html",
                        "/webjars/**",
                        "/configuration/**",
                        "/swagger*/**",
                        "/console/**").permitAll()
                .requestMatchers(SecurityUtils::isFrameworkInternalRequest).permitAll()
                .antMatchers(HttpMethod.GET).hasAnyRole(COMMITTEE_MEMBER,BUSINESS_ADMINISTRATOR)
                .antMatchers(HttpMethod.DELETE).denyAll()
                .antMatchers(HttpMethod.HEAD).denyAll()
                .antMatchers(HttpMethod.OPTIONS).denyAll()
                .antMatchers(HttpMethod.PATCH).denyAll()
                .antMatchers(HttpMethod.POST).denyAll()
                .antMatchers(HttpMethod.PUT).denyAll()
                .antMatchers(HttpMethod.TRACE).denyAll()
                .anyRequest().authenticated().and()
                .httpBasic().and()
                .csrf().disable()
                .addFilter(new AuthorizationFilter(authenticationManager(), userRepository))
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and().formLogin()
                .loginPage(LOGIN_URL).permitAll()
                .loginProcessingUrl(LOGIN_PROCESSING_URL)
                .failureUrl(LOGIN_FAILURE_URL)
                .and().logout().logoutSuccessUrl(LOGOUT_SUCCESS_URL);
    }

protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.inMemoryAuthentication()
            .withUser("user")
            .password(passwordEncoder().encode("******"))
            .roles(ADMINISTRATOR);
}

    public UserDetailsService userDetailsService() {
    UserDetails user =
            User.withUsername("admin")
                    .password("{noop}*******")
                    .roles(ADMINISTRATOR)
                    .build();

    return new InMemoryUserDetailsManager(user);
}

如何设置它们以进行联合活动？

spring-boot
Martin Hope
Anton Charov
Asked: 2020-08-06 00:06:37 +0800 CST
  • 1

抛出异常时，以下代码应返回带有相应文本的错误，因为他们写https://www.baeldung.com/spring-response-status-exception

@GetMapping
public ResponseEntity<FeedbackDto> get(@RequestHeader(value = "user-token") String userToken) {
    try {
        return ResponseEntity.ok().body(feedbackService.getByUserToken(userToken));
    } catch (UserNotFoundException ex) {
        throw new ResponseStatusException(HttpStatus.NOT_FOUND, "User Not Found. Id=" + ex.getMessage());
    }
}

我和邮递员核对。来了

{
    "timestamp": "2020-08-05T15:53:49.120+00:00",
    "status": 404,
    "error": "Not Found",
    "message": "",
    "path": "/feedback"
}
spring
Martin Hope
Anton Charov
Asked: 2020-07-31 22:13:49 +0800 CST
  • 0

有一个热门查询列表

@Entity
public class PopularSearch extends BaseEntity{
    private String searchStr;
    private Long count;
}

你需要选择五个最受欢迎的。我这样做

@Repository
public interface PopularSearchRepository extends BaseRepository<PopularSearch> {
    List<PopularSearch> findTop5OrderByCountDesc();
}

他们抛出一个异常PopularSearchRepository.findTop5OrderByCountDesc()! No property desc found for type Long! Traversed path: PopularSearch.count 如果你写findTop5BySearchStrOrderByCountDesc(String s)，那么一切都编译得很好。可以这样写这样的请求吗？当然，您可以通过 jpql 编写，但我想知道是否可以通过这种方式。

spring-data
Martin Hope
Anton Charov
Asked: 2020-07-22 02:06:11 +0800 CST
  • 0

有三张桌子。第一个带有日期的日历。

@Entity
@NamedEntityGraph(
        name = "eventCalendar.events",
        attributeNodes = @NamedAttributeNode("events"),
        subgraphs = {
                @NamedSubgraph(
                name = "event-with-contacts-and-eventContents",
                type = Event.class,
                attributeNodes = { @NamedAttributeNode("contacts"),
                                    @NamedAttributeNode("eventContents") })})
public class EventCalendar extends BaseEntity {
    private Long day;
    @Column(columnDefinition = "boolean default false")
    private Boolean isActive;
    @OneToMany(mappedBy = "eventCalendar",cascade = CascadeType.ALL)
    private List<Event> events = new ArrayList<>();
}

每个日期可以有多个事件。

@Entity
@NamedEntityGraph(name = "event-with-contacts-and-eventContents",
        attributeNodes = { @NamedAttributeNode("contacts"), @NamedAttributeNode("eventContents") })
public class Event extends BaseEntity {
    @OneToMany(mappedBy = "event",cascade = CascadeType.ALL)
    private List<EventContent> eventContents = new ArrayList<>();
    @ManyToOne
    @JoinColumn(name = "event_calendar_id")
    private EventCalendar eventCalendar;
    @ManyToMany
    private Set<Contact> contacts = new LinkedHashSet<>();
}

每个事件可以有很多参与者，就像一个参与者可以在许多事件的列表中一样

@Entity
public class Contact extends BaseEntity {
    private String surname;
    private String name;
    private String patronymic;
    @ManyToMany
    private Set<Event> events = new LinkedHashSet<>();
}

日历存储库

@Repository
public interface EventCalendarRepository extends BaseRepository<EventCalendar> {
    @EntityGraph(value = "eventCalendar.events", type = EntityGraph.EntityGraphType.LOAD)
    List<EventCalendar> findByDayIn(Long[] days);
}

eventContents 字段已加载，但未加载联系人。怎么修？

hibernate
Martin Hope
Anton Charov
Asked: 2020-07-17 20:18:20 +0800 CST
  • 0

我正在尝试在安装在 debian 上的 wildfly 上部署 spring boot+vaadin 14 应用程序。我收到错误 - 无法写入 package.json 文件

Failed to execute goal org.wildfly.plugins:wildfly-maven-plugin:2.0.2.Final:deploy 
(default-cli) on project admin: Failed to execute goal deploy: 
{"WFLYCTL0062: Composite operation failed and was rolled back. Steps that failed:" 
=> {"Operation step-1" => {"WFLYCTL0080: Failed services" => 
{"jboss.deployment.unit.\"admin.war\".undertow-deployment" => "java.lang.RuntimeException: 
java.io.UncheckedIOException: java.io.IOException: 
File '/home/gitlab-runner/builds/a41nNuzA/0/...../package.json' cannot be written to

他想把它写在哪里？如何设置vaadin？

debian
Martin Hope
Anton Charov
Asked: 2020-07-16 03:45:07 +0800 CST
  • 0

我正在尝试在 Wildfly 上部署一个 Spring Boot 应用程序。pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>pro.profsoft</groupId>
    <artifactId>admin</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>admin</name>
    <description>administration panel</description>

    <properties>
        <java.version>1.8</java.version>
        <vaadin.version>14.2.3</vaadin.version>
        <junit.jupiter.version>5.7.0-M1</junit.jupiter.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <wildfly-hostname>localhost</wildfly-hostname>
        <wildfly-port>9990</wildfly-port>
        <wildfly-username>wildfly</wildfly-username>
        <wildfly-password>wildfly</wildfly-password>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>junit</groupId>
                    <artifactId>junit</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <version>${junit.jupiter.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.wildfly.plugins/wildfly-maven-plugin -->
        <dependency>
            <groupId>org.wildfly.plugins</groupId>
            <artifactId>wildfly-maven-plugin</artifactId>
            <version>2.0.2.Final</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.reactivestreams/reactive-streams -->
        <dependency>
            <groupId>org.reactivestreams</groupId>
            <artifactId>reactive-streams</artifactId>
            <version>1.0.3</version>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.vaadin</groupId>
                <artifactId>vaadin-bom</artifactId>
                <version>${vaadin.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <finalName>${project.name}</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.wildfly.plugins</groupId>
                <artifactId>wildfly-maven-plugin</artifactId>
                <version>2.0.2.Final</version>
                <configuration>
                    <hostname>${wildfly-hostname}</hostname>
                    <port>${wildfly-port}</port>
                    <username>${wildfly-username}</username>
                    <password>${wildfly-password}</password>
                    <name>${project.name}.war</name>
                </configuration>
            </plugin>
            <plugin>
                <groupId>com.vaadin</groupId>
                <artifactId>vaadin-maven-plugin</artifactId>
                <version>${vaadin.version}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>prepare-frontend</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

运行 mvn wildfly:deploy 时抛出错误。

[ERROR] Failed to execute goal org.wildfly.plugins:wildfly-maven-plugin:2.0.2.Final:deploy (default-cli) on project admin: Failed to execute goal deploy: {"WFLYCTL0062: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-1" => {"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"admin.war\".undertow-deployment" => "java.lang.RuntimeException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'undertowServletWebServerFactory' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfiguration$EmbeddedUndertow.class]: Initialization of bean failed; nested exception is java.lang.LinkageError: loader constraint violation: when resolving field \"MAX_HEADER_SIZE\" the class loader (instance of org/jboss/modules/ModuleClassLoader) of the referring class, io/undertow/UndertowOptions, and the class loader (instance of org/jboss/modules/ModuleClassLoader) for the field's resolved type, org/xnio/Option, have different Class objects for that type
[ERROR]     Caused by: java.lang.RuntimeException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'undertowServletWebServerFactory' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfiguration$EmbeddedUndertow.class]: Initialization of bean failed; nested exception is java.lang.LinkageError: loader constraint violation: when resolving field \"MAX_HEADER_SIZE\" the class loader (instance of org/jboss/modules/ModuleClassLoader) of the referring class, io/undertow/UndertowOptions, and the class loader (instance of org/jboss/modules/ModuleClassLoader) for the field's resolved type, org/xnio/Option, have different Class objects for that type
[ERROR]     Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'undertowServletWebServerFactory' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfiguration$EmbeddedUndertow.class]: Initialization of bean failed; nested exception is java.lang.LinkageError: loader constraint violation: when resolving field \"MAX_HEADER_SIZE\" the class loader (instance of org/jboss/modules/ModuleClassLoader) of the referring class, io/undertow/UndertowOptions, and the class loader (instance of org/jboss/modules/ModuleClassLoader) for the field's resolved type, org/xnio/Option, have different Class objects for that type
[ERROR]     Caused by: java.lang.LinkageError: loader constraint violation: when resolving field \"MAX_HEADER_SIZE\" the class loader (instance of org/jboss/modules/ModuleClassLoader) of the referring class, io/undertow/UndertowOptions, and the class loader (instance of org/jboss/modules/ModuleClassLoader) for the field's resolved type, org/xnio/Option, have different Class objects for that type"}}}}

据我了解，原因是依赖关系。怎么修？

spring-boot
Martin Hope
Anton Charov
Asked: 2020-07-13 23:27:58 +0800 CST
  • 0

管理控制台 Wildfly 未打开。找到了使用设置启动服务器的修复程序sudo /opt/wildfly/bin/standalone.sh -b=0.0.0.0 -bmanagement=0.0.0.0但是，我收到一个错误

9:08:51,750 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: 
Failed to start service org.wildfly.undertow.listener.default: org.jboss.msc.service.StartException in service org.wildfly.undertow.listener.default:
Address already in use /0.0.0.0:8080
        at org.wildfly.extension.undertow.ListenerService.start(ListenerService.java:209)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1739)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1701)
        at org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1559)
        at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
        at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1363)
        at java.lang.Thread.run(Thread.java:748)


19:08:52,237 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service org.wildfly.management.http.extensible: org.jboss.msc.service.StartException in service org.wildfly.management.http.extensible: java.net.BindException: Address already in use /0.0.0.0:9990
        at org.jboss.as.server.mgmt.UndertowHttpManagementService.start(UndertowHttpManagementService.java:399)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1739)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1701)
        at org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1559)
        at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
        at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1363)
        at java.lang.Thread.run(Thread.java:748)

19:08:52,410 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: 
Failed to start service org.wildfly.undertow.listener.https: org.jboss.msc.service.StartException in service org.wildfly.undertow.listener.https: 
Address already in use /0.0.0.0:8443
        at org.wildfly.extension.undertow.ListenerService.start(ListenerService.java:209)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1739)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1701)
        at org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1559)
        at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
        at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1363)
        at java.lang.Thread.run(Thread.java:748)

19:08:52,422 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
    ("core-service" => "management"),
    ("management-interface" => "http-interface")
]) - failure description: {"WFLYCTL0080: Failed services" => {"org.wildfly.management.http.extensible" => "java.net.BindException: Address already in use /0.0.0.0:9990"}}
19:08:52,571 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
    ("subsystem" => "undertow"),
    ("server" => "default-server"),
    ("http-listener" => "default")
]) - failure description: {"WFLYCTL0080: Failed services" => {"org.wildfly.undertow.listener.default" => "Address already in use /0.0.0.0:8080"}}
19:08:52,577 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
    ("subsystem" => "undertow"),
    ("server" => "default-server"),
    ("https-listener" => "https")
]) - failure description: {"WFLYCTL0080: Failed services" => {"org.wildfly.undertow.listener.https" => "Address already in use /0.0.0.0:8443"}}
19:08:52,578 ERROR [org.jboss.as.controller] (Controller Boot Thread) WFLYCTL0459: Triggering roll back due to missing management services.
19:08:52,582 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
    ("core-service" => "management"),
    ("management-interface" => "http-interface")
]) - failure description: {"WFLYCTL0080: Failed services" => {"org.wildfly.management.http.extensible" => "java.net.BindException: Address already in use /0.0.0.0:9990"}}
wildfly
Martin Hope
Anton Charov
Asked: 2020-07-10 19:10:43 +0800 CST
  • 0

为什么需要 dto 映射器？例如模型映射器。在所有示例中，dto 和实体类都是相同的。如果你需要给json的字段与模型不同，你还需要写映射，那为什么还要使用库呢？有什么好处？例如

{
    "data": [
        {
            "id": 2,
            "name": "Иванов Иван Ильич",
            "status": "Председатель",
            "filter": [
                "дирекция" 
            ],
            "phones": [],
            "email": [
                "Ism@ya.ru",
                "aIB@mail.ru" 
            ],
            "image": "Ivanoff828",
            "thumbImage": "Ivanoff64" 
        },
        {
            "id": 14,
            "name": "Петров Петр Анатольевич",
            "status": "Заместитель",
            "filter": [
                "дирекция",
                "совет"
            ],
            "phones": [],
            "email": [
                "Sh@ya.ru",
                "sv@mail.ru" 
            ],
            "image": "Sh828",
            "thumbImage": "Sh64" 
        }
}

实体由类描述

@Entity
public class Contact extends BaseEntity {
    private String surname;
    private String name;
    private String patronymic;
    @OneToMany(mappedBy = "contact", orphanRemoval = true, fetch = FetchType.EAGER)
    private Set<Phone> phones = new LinkedHashSet<>();
    @OneToMany(mappedBy = "contact", orphanRemoval = true, fetch = FetchType.EAGER)
    private Set<Email> emails = new LinkedHashSet<>();
    private String position;
    private String organisation;
}

@Entity
public class Email extends BaseEntity {
    private String email;
    @ManyToOne
    @JoinColumn(name = "contact_id")
    private Contact contact;
}

@Entity
public class Phone extends BaseEntity {
    private String number;
    private String type;
    @ManyToOne
    @JoinColumn(name = "contact_id")
    private Contact contact;
}

在这种情况下使用现成的 dto 映射器是否有意义，还是自己编写更好？

java
Martin Hope
Anton Charov
Asked: 2020-06-10 23:15:15 +0800 CST
  • 0

需要绘制如下界面

在此处输入图像描述

首先，我正在尝试替换 ActionBar 的样式

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="android:actionBarStyle">@style/MyActionBarTheme</item>
</style>

<style name="MyActionBarTheme" parent="@android:style/Widget.Holo.Light.ActionBar">
    <item name="android:background">@drawable/actionbar_background</item>
</style>

actionbar_background.xml

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid
        android:color="@color/background">
    </solid>
    <corners
        android:bottomLeftRadius="40dp"
        android:bottomRightRadius="40dp">
    </corners>
</shape>

但是，外观并没有改变。我究竟做错了什么？也许它在parent="@android:style/Widget.Holo.Light.ActionBar"？继承自别的东西？

第二个问题是关于 Material design 风格的卡片。我正在考虑尝试使用 RecyclerView 来实现它，还是有更合适的方法？

java
Martin Hope
Anton Charov
Asked: 2020-04-20 18:54:10 +0800 CST
  • 0

我正在尝试连接sdk com.vk.api 应用程序使用spring boot，mongodb。部署到tomcat时出现错误

SEVERE [RMI TCP Connection(4)-127.0.0.1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: 
    org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/vkchat_war_exploded]]
        at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
        at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1720)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:479)
        at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:428)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
        at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
        at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
        at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)
        at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
        at sun.rmi.transport.Transport$1.run(Transport.java:200)
        at sun.rmi.transport.Transport$1.run(Transport.java:197)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
    Caused by: org.apache.logging.log4j.LoggingException: log4j-slf4j-impl cannot be present with log4j-to-slf4j
        at org.apache.logging.slf4j.Log4jLoggerFactory.validateContext(Log4jLoggerFactory.java:49)
        at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:39)
        at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:30)
        at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:54)
        at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30)
        at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:363)
        at org.apache.commons.logging.LogAdapter$Slf4jAdapter.createLocationAwareLog(LogAdapter.java:130)
        at org.apache.commons.logging.LogAdapter.createLog(LogAdapter.java:91)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:67)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:59)
        at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:91)
        at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5156)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
        ... 44 more
20-Apr-2020 13:41:49.319 SEVERE [RMI TCP Connection(4)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method manageApp
    java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/vkchat_war_exploded]]
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:747)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
        at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1720)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:479)
        at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:428)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
        at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
        at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
        at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)
        at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
        at sun.rmi.transport.Transport$1.run(Transport.java:200)
        at sun.rmi.transport.Transport$1.run(Transport.java:197)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
20-Apr-2020 13:41:49.320 SEVERE [RMI TCP Connection(4)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method createStandardContext
    javax.management.RuntimeOperationsException: Exception invoking method manageApp
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:295)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:479)
        at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:428)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
[2020-04-20 01:41:49,377] Artifact vkchat:war exploded: Error during artifact deployment. See server log for details.
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
        at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
        at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
        at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)
        at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
        at sun.rmi.transport.Transport$1.run(Transport.java:200)
        at sun.rmi.transport.Transport$1.run(Transport.java:197)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
    Caused by: java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/vkchat_war_exploded]]
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:747)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
        at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1720)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:287)

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>ru.antoncharov</groupId>
    <artifactId>vkchat</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>vkchat</name>
    <description>test work</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <artifactId>jackson-databind</artifactId>
                    <groupId>com.fasterxml.jackson.core</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.6</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.vk.api</groupId>
            <artifactId>sdk</artifactId>
            <version>1.0.6</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

码头上写着使用了依赖 SLF4J 版本 1.7.26 - 显然这里存在某种冲突。如何设置？

vkontakte-api
Martin Hope
Anton Charov
Asked: 2020-04-19 18:38:14 +0800 CST
  • 0

我正在用 Spring boot 编写一个 web 应用程序，使用 maven 构建一个战争，然后我需要将它部署到 tomcat。ide - intellij 的想法。pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>ru.antoncharov</groupId>
    <artifactId>chat</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <start-class>chat.VkChatApplication</start-class>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
            <exclusion>
                <artifactId>jackson-databind</artifactId>
                <groupId>com.fasterxml.jackson.core</groupId>
            </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
        </dependency>
        <dependency>
            <groupId>com.vk.api</groupId>
            <artifactId>sdk</artifactId>
            <version>1.0.6</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.6</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

启动配置设置 在此处输入图像描述

项目结构

在此处输入图像描述

在启动时，该项目已构建，显然，在尝试部署时，它会在运行 Tomcat 端口超出范围 -1 安装并启动 Tomcat 时出错。我究竟做错了什么？

intellij-idea
Martin Hope
Anton Charov
Asked: 2020-04-11 18:01:48 +0800 CST
  • 0

需要向数据库添加新表，但出现了问题。在部署期间，数据库从转储中恢复，并且表的所有者 - [dbo] - 与本地表的所有者相同。创建表时（我通过 ssms 进行），管理面板中的帐户成为所有者并且映射飞行，它找不到表，因为它是语言环境上的 dbo。我通过工作室自动形成实体的映射。告诉我如何更改映射中表的所有者（这可能是名称的一部分）重新创建数据库，重新加载数据等。- 显然而且很长一段时间。

c#
Martin Hope
Anton Charov
Asked: 2020-02-22 20:17:18 +0800 CST
  • 1

对于长文本，有些词超出范围。如何正确转账？taskView 中的长文本 = "Gjjjjfghfhgfhfhgfhgfhggfh fhghfgfgf gfhyyfgh fhfffgh fgfhhf fhhf hghg 不在房间内工作。" 根据转移，但它是不正确的。

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="10dp"
    android:layout_marginLeft="8dp"
    android:layout_marginTop="10dp"
    android:layout_marginBottom="4dp"
    android:background="@drawable/customborder">

    <TextView
        android:id="@+id/rectangleNumber"
        android:layout_width="60dp"
        android:layout_height="28dp"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:background="@drawable/rectangle"
        android:gravity="center_vertical|center_horizontal"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/dateTimeView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:fontFamily="@font/montserrat"
        app:layout_constraintStart_toStartOf="@+id/rectangleNumber"
        app:layout_constraintTop_toBottomOf="@+id/rectangleNumber" />

    <TextView
        android:id="@+id/address"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:fontFamily="@font/poppins_medium"
        app:layout_constraintStart_toStartOf="@+id/dateTimeView"
        app:layout_constraintTop_toBottomOf="@+id/dateTimeView" />

    <TextView
        android:id="@+id/cvalView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:fontFamily="@font/poppins_medium"
        app:layout_constraintStart_toStartOf="@+id/address"
        app:layout_constraintTop_toBottomOf="@+id/address" />

    <TextView
        android:id="@+id/taskView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginRight="4dp"
        android:fontFamily="@font/poppins_medium"
        app:layout_constraintStart_toStartOf="@+id/cvalView"
        app:layout_constraintTop_toBottomOf="@+id/cvalView" />

    <TextView
        android:id="@+id/description"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:fontFamily="@font/montserrat"
        app:layout_constraintStart_toStartOf="@+id/taskView"
        app:layout_constraintTop_toBottomOf="@+id/taskView" />

    <Button
        android:id="@+id/agreeBtn"
        android:layout_width="100dp"
        android:layout_height="30dp"
        android:layout_marginTop="8dp"
        android:layout_marginBottom="8dp"
        android:background="@drawable/rectangle"
        android:backgroundTint="#00CC4F"
        android:fontFamily="@font/montserrat"
        android:text="Принять"
        android:textColor="#FFFFFF"
        app:layout_constraintStart_toStartOf="@+id/description"
        app:layout_constraintTop_toBottomOf="@+id/description" />

    <Button
        android:id="@+id/disagreeBtn"
        android:layout_width="100dp"
        android:layout_height="30dp"
        android:layout_marginLeft="16dp"
        android:layout_marginBottom="8dp"
        android:backgroundTint="#F23B51"
        android:text="Отклонить"
        android:textColor="#FFFFFF"
        android:fontFamily="@font/montserrat"
        android:background="@drawable/rectangle"
        app:layout_constraintLeft_toRightOf="@+id/agreeBtn"
        app:layout_constraintTop_toTopOf="@+id/agreeBtn" />
</androidx.constraintlayout.widget.ConstraintLayout>

在此处输入图像描述

android
Martin Hope
Anton Charov
Asked: 2020-12-18 02:23:41 +0800 CST
  • 0

需要按有效期对所有托盘进行分组，按有效期升序排序，在每组中按重量对托盘进行分类。

class Pallete
{
    public List<Box> boxes { get; private set; }
    public DateTime? getExpirationDate() {
        return boxes.Min(b => b.ExpirationDate);
    }

    public int getWeight() {
        return boxes.Sum(b => b.Weight) + 30;
    }
}

结果是按到期日期对所有托盘进行分组，按到期日期升序排序。现在如何在每组中按重量排序？

private List<Pallete> palletes;

    public void getGroupedBy() {
        var g = palletes
            .GroupBy(p => p.getExpirationDate())
            .OrderBy(p => p.Key);

        foreach (var x in g)
        {
            System.Console.WriteLine("ExDate:{0}", x.Key);
            foreach (var y in x)
            {
                System.Console.WriteLine("=====weight:{0}, id:{1}", y.getWeight(), y.Id);
            }
        }
    }

更新 这样做了

    public void getGroupedBy() {
        var g = palletes
            .GroupBy(p => p.getExpirationDate())
            .OrderBy(p => p.Key)
            .ToDictionary(p => p.Key, p => p.OrderBy(p => p.getWeight()))
            .GroupBy(p => p.Key);

        foreach (var x in g)
        {
            System.Console.WriteLine("ExDate:{0}", x.Key);
            foreach (var y in x)
            {
                System.Console.WriteLine("==ExDate:{0}", y.Key);
                foreach (var z in y.Value) {
                    System.Console.WriteLine("=====weight:{0}, id:{1}", z.getWeight(), z.Id);
                }
            }
        }
    }

在我看来是歪的。是否有可能以某种方式改进最终的结构？导致IGrouping？

c#