maven更新后Java版本自动改为java 1.5 [英] Java version automatically change to java 1.5 after maven update
问题描述
我使用 Eclipse 作为 IDE.当我右键单击该项目然后单击 maven 时,将我的 java 版本更改为 1.5.这是我到目前为止所做的,我按照此处列出的所有步骤操作
- 我将Java 构建路径"更改为工作区默认 jre 1.8.0_25"
- 然后将java编译器"更改为 1.8
- 然后更改project facets">java>1.8
- 将 pom.xml java 版本更改为 1.8
<插件><插件><groupId>org.eclipse.jetty</groupId><artifactId>jetty-maven-plugin</artifactId><version>9.1.3.v20140225</version></插件><插件><groupId>org.apache.maven.plugin</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.1</version><配置><来源>1.8</来源><目标>1.8</目标></配置></插件></插件></build>
毕竟当我点击Maven 更新"时,我的 Java 版本会自动更改为 1.5.同样在上述步骤中,前两步的版本也自动更改为 1.5.我该如何解决这个问题?
打开您的 pom.xml
文件并在其上添加以下几行:
<maven.compiler.source>1.8</maven.compiler.source><maven.compiler.target>1.8</maven.compiler.target></属性>
其中 1.8
是您当前 JDK/JRE 的 Java 版本.另一种方法是添加一个
和 maven-compile-plugin
作为
<插件><插件><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.2</version><!-- 或任何当前版本--><配置><来源>1.8</来源><目标>1.8</目标></配置></插件></插件></build>
编辑
如果您正在寻找一种方法使其适用于 Java 9+ 版本,请查看 @JDelorean's回答在这里,别忘了给他点赞:)>
I am using eclipse as IDE. When I right click on the project and then click maven update my java version change to 1.5. Here is what I did so far, I followed all the steps listed here
- I changed "Java build path" to "workspace default jre 1.8.0_25"
- Then changed "java compiler" to 1.8
- Then changed "project facets">java>1.8
- Changed pom.xml java version to 1.8
<build>
<plugins>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.1.3.v20140225</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugin</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
After all this when I click on "Maven update" my java version change to 1.5 automatically. Also in above steps, first two step's version also change to 1.5 automatically. How can I fix this?
Open your pom.xml
file and add the following lines on it:
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
Where 1.8
is the java version of your current JDK/JRE. Another way of doing this is adding a <build>
with the maven-compile-plugin
as
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version> <!-- or whatever current version -->
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
EDIT
If you are looking for a way to make it work with Java versions 9+ please take a look at @JDelorean's answer down here and don't forget to give him an upvote as well :)
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