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Accepted
Evendie
Asked:2022-06-28 18:22:50 +0800 CST2022-06-28 18:22:50 +0800 CST

编译Java时，代码要java 7或更高，但我有8，怎么办？

  • 772

编译时，显示以下消息：

com/javacodegeeks/jstringsearch/Main2.java:[133,57] underscores in literals are not supported in -source 1.6
  (use -source 7 or higher to enable underscores in literals)
com/javacodegeeks/jstringsearch/file/LuceneWriteIndexFromFileExample.java:[120,13] try-with-resources is not supported in -source 1.6
  (use -source 7 or higher to enable try-with-resources)
com/javacodegeeks/jstringsearch/memoryIndex/InMemoryLuceneIndex.java:[110,30] multi-catch statement is not supported in -source 1.6
  (use -source 7 or higher to enable multi-catch statement)

我有版本 8。

在此处输入图像描述

告诉我该怎么做，还是我混淆了什么？如何解决这样的问题？

java

1 个回答

  1. Best Answer

    指定pom.xml编译器应将您的源解释为 java7：

    <project ...>
  ....
  <properties>
    <maven.compiler.source>1.7</maven.compiler.source>
  </properties>
  ...
</project.
    • 2

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