idea maven 报-source 1.5 中不支持 diamond 运算符

- 日理万妓 2022-01-14 14:39 285阅读 0赞

"C:\Program Files\Java\jdk1.8.0_144\bin\java" -Dmaven.multiModuleProjectDirectory=D:\file\dqs_jx "-Dmaven.home=C:\Program Files\JetBrains\IntelliJ IDEA 2017.3\plugins\maven\lib\maven3" "-Dclassworlds.conf=C:\Program Files\JetBrains\IntelliJ IDEA 2017.3\plugins\maven\lib\maven3\bin\m2.conf" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2017.3\lib\idea_rt.jar=51512:C:\Program Files\JetBrains\IntelliJ IDEA 2017.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\JetBrains\IntelliJ IDEA 2017.3\plugins\maven\lib\maven3\boot\plexus-classworlds-2.5.2.jar" org.codehaus.classworlds.Launcher -Didea.version=2017.3.1 org.mortbay.jetty:jetty-maven-plugin:8.1.15.v20140411:run
    [INFO] Scanning for projects...
    [WARNING] 
    [WARNING] Some problems were encountered while building the effective model for com.dqs:dqs:war:0.0.1-SNAPSHOT
    [WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.apache.axis:axis:jar -> duplicate declaration of version 1.3 @ line 264, column 21
    [WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: com.jfinal:jfinal:jar -> version 3.0 vs 1.9 @ line 269, column 21
    [WARNING] 
    [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
    [WARNING] 
    [WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
    [WARNING] 
    [INFO]                                                                         
    [INFO] ------------------------------------------------------------------------
    [INFO] Building dqs 0.0.1-SNAPSHOT
    [INFO] ------------------------------------------------------------------------
    [INFO] 
    [INFO] >>> jetty-maven-plugin:8.1.15.v20140411:run (default-cli) > test-compile @ dqs >>>
    [INFO] 
    [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ dqs ---
    [INFO] Using 'UTF-8' encoding to copy filtered resources.
    [INFO] Copying 8 resources
    [INFO] 
    [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ dqs ---
    [INFO] Changes detected - recompiling the module!
    [INFO] Compiling 297 source files to D:\file\dqs_jx\target\classes
    [INFO] -------------------------------------------------------------
    [ERROR] COMPILATION ERROR : 
    [INFO] -------------------------------------------------------------
    [ERROR] /D:/file/dqs_jx/src/main/java/com/dqs/controller/ReportController.java:[104,61] -source 1.5 中不支持 diamond 运算符
      (请使用 -source 7 或更高版本以启用 diamond 运算符)
    [INFO] 1 error
    [INFO] -------------------------------------------------------------
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD FAILURE
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 4.031 s
    [INFO] Finished at: 2017-12-22T09:29:07+08:00
    [INFO] Final Memory: 13M/207M
    [INFO] ------------------------------------------------------------------------
    [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project dqs: Compilation failure
    [ERROR] /D:/file/dqs_jx/src/main/java/com/dqs/controller/ReportController.java:[104,61] -source 1.5 中不支持 diamond 运算符
    [ERROR] (请使用 -source 7 或更高版本以启用 diamond 运算符)
    [ERROR] -> [Help 1]
    [ERROR] 
    [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
    [ERROR] Re-run Maven using the -X switch to enable full debug logging.
    [ERROR] 
    [ERROR] For more information about the errors and possible solutions, please read the following articles:
    [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
    
    Process finished with exit code 1

![复制代码][copycode.gif]

需要修改 project setting 中的

![1090460-20171222093142209-1979383293.png][]

划重点！还有一个地方！就是

![1090460-20171222093230006-1720958793.png][]

需要跟刚刚的setting 的javac版本对应

[copycode.gif]: /images/20220114/f5b06623b4054c17bb29a048f999cb6b.png
[1090460-20171222093142209-1979383293.png]: /images/20220114/484628d60bbd47e0bb731703a1153daf.png
[1090460-20171222093230006-1720958793.png]: /images/20220114/c6e4f4798c6a4fcc82ed4b66c0cc8bc3.png