mvn 问题

[iroywang]

[INFO] Scanning for projects...
[INFO]
[INFO] ---------------------------< com.book:book >----------------------------
[INFO] Building book 1.0-SNAPSHOT
[INFO] --------------------------------[ war ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ book ---
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ book ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ book ---
[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 21 source files to /Users/iroy/Desktop/Books-Management-System/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] 不再支持源选项 5。请使用 6 或更高版本。
[ERROR] 不再支持目标选项 1.5。请使用 1.6 或更高版本。
[INFO] 2 errors
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.359 s
[INFO] Finished at: 2018-06-07T09:53:49+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project book: Compilation failure: Compilation failure:
[ERROR] 不再支持源选项 5。请使用 6 或更高版本。
[ERROR] 不再支持目标选项 1.5。请使用 1.6 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
iroydeMBP:Books-Management-System iroy$ mvn --version
Apache Maven 3.5.3 (3383c37e1f9e9b3bc3df5050c29c8aff9f295297; 2018-02-25T03:49:05+08:00)
Maven home: /usr/local/Cellar/maven/3.5.3/libexec
Java version: 10, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk-10.jdk/Contents/Home
Default locale: zh_CN_#Hans, platform encoding: UTF-8
OS name: "mac os x", version: "10.13.4", arch: "x86_64", family: "mac"
iroydeMBP:Books-Management-System iroy$ mvn clean compile
[INFO] Scanning for projects...
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[ERROR] Malformed POM /Users/iroy/Desktop/Books-Management-System/pom.xml: Unrecognised tag: 'properties' (position: START_TAG seen ...\n ... @94:21) @ /Users/iroy/Desktop/Books-Management-System/pom.xml, line 94, column 21
@
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]
[ERROR] The project com.book:book:1.0-SNAPSHOT (/Users/iroy/Desktop/Books-Management-System/pom.xml) has 1 error
[ERROR] Malformed POM /Users/iroy/Desktop/Books-Management-System/pom.xml: Unrecognised tag: 'properties' (position: START_TAG seen ...\n ... @94:21) @ /Users/iroy/Desktop/Books-Management-System/pom.xml, line 94, column 21 -> [Help 2]
[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/ProjectBuildingException
[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/ModelParseException

[withstars]

pom.xml文件中增加jdk的设置，类似如下

<properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>