Maven编译报错：[ERROR] 不再支持源选项 5。请使用 7 或更高版本。[ERROR] 不再支持目标选项 5。请使用 7 或更高版本
执行
mvn package -DskipTests, Maven编译报错信息：1
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42✘ yan ~/data/UserAgentParser master ● mvn package -DskipTests
[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------< com.kumkee:UserAgentParser >---------------------
[INFO] Building User Agent Parser 0.0.1
[INFO] --------------------------------[ jar ]---------------------------------
Downloading from central: https://repo.maven.apache.org/maven2/junit/junit/4.8.2/junit-4.8.2.pom
Downloaded from central: https://repo.maven.apache.org/maven2/junit/junit/4.8.2/junit-4.8.2.pom (1.5 kB at 1.3 kB/s)
Downloading from central: https://repo.maven.apache.org/maven2/junit/junit/4.8.2/junit-4.8.2.jar
Downloaded from central: https://repo.maven.apache.org/maven2/junit/junit/4.8.2/junit-4.8.2.jar (237 kB at 204 kB/s)
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ UserAgentParser ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/yan/data/UserAgentParser/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ UserAgentParser ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 7 source files to /Users/yan/data/UserAgentParser/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] 不再支持源选项 5。请使用 7 或更高版本。
[ERROR] 不再支持目标选项 5。请使用 7 或更高版本。
[INFO] 2 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.573 s
[INFO] Finished at: 2020-06-28T17:16:58+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project UserAgentParser: Compilation failure: Compilation failure:
[ERROR] 不再支持源选项 5。请使用 7 或更高版本。
[ERROR] 不再支持目标选项 5。请使用 7 或更高版本。
[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[ERROR] 不再支持源选项 5。请使用 7 或更高版本。
[ERROR] 不再支持目标选项 5。请使用 7 或更高版本。
可以通过设置编译器版本来解决。可以看到除了编译Error报错，还有一个[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!，这个只需要设置文件编码即可。
解决方法：在
pom.xml文件中指定Maven编译所使用的JDK版本：1
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23<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>com.kumkee</groupId>
<artifactId>UserAgentParser</artifactId>
<version>0.0.1</version>
<name>User Agent Parser</name>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
</dependencies>
<!-- 指定编译器版本和字符编码 -->
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
<java.version>13</java.version>
<maven.compiler.source>13</maven.compiler.source>
<maven.compiler.target>13</maven.compiler.target>
</properties>
</project>
https://github.com/LeeKemp/UserAgentParser
通过git clone或者浏览器下载到本地后，使用命令行进入到其主目录下，然后通过maven命令对其进行打包并安装到本地仓库里：
mvn clean package -DskipTest
mvn clean install -DskipTest
安装完成后，在工程pom.xml 中添加依赖：
1 | <!-- 添加UserAgent解析的依赖 --> |