Linux下mvn compile报错

[jhams]

报错信息如下：
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] Source option 5 is no longer supported. Use 7 or later.
[ERROR] Target option 5 is no longer supported. Use 7 or later.
[INFO] 2 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.188 s
[INFO] Finished at: 2019-07-03T19:56:38-07:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project ch01: Compilation failure: Compilation failure:
[ERROR] Source option 5 is no longer supported. Use 7 or later.
[ERROR] Target option 5 is no longer supported. Use 7 or later.
[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


pom.xml如下：
<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">

<!-- 模型版本 -->
<modelVersion>4.0.0</modelVersion>
<!-- 公司或者组织的唯一标志，并且配置时生成的路径也是由此生成， 如com.companyname.project-group，maven会将该项目打成的jar包放本地路径：/com/companyname/project-group -->
<groupId>com.juvenxu.mvnbook</groupId>

<!-- 项目的唯一ID，一个groupId下面可能多个项目，就是靠artifactId来区分的 -->
<artifactId>ch01</artifactId>

<!-- 版本号 -->
<version>1.0-SNAPSHOT</version>
<name>Maven Hello World Project</name>
</project>

java代码如下：
zj@ubuntu:~/MVN/project/ch01/src/main/java$ cat HelloWorld.java
package com.juvenxu.mvnbook.ch01;

/**
* Hello world!
*
*/
public class HelloWorld
{
public static void main( String[] args )
{
System.out.println( "Hello World!" );
}
}

请教大家！

[「已注销」]

Source option 5 is no longer supported. Use 7 or later

[「已注销」]

你看下是不是jdk版本的问题

[jhams]

好像是1.8的：
zj@ubuntu:~/MVN/project/ch01/src/main/java$ java -version
openjdk version "1.8.0_212"
OpenJDK Runtime Environment (build 1.8.0_212-8u212-b03-0ubuntu1.16.04.1-b03)
OpenJDK 64-Bit Server VM (build 25.212-b03, mixed mode)

[jhams]

引用 2 楼 IsaacOstars 的回复:

你看下是不是jdk版本的问题

具体怎么改呢

[「已注销」]

  <properties> 
    <maven.compiler.source>1.8</maven.compiler.source> 
    <maven.compiler.target>1.8</maven.compiler.target> 
    </properties> 

试下把这个加上

[jhams]

编译通过了，多谢~