报错信息：

"C:\Program Files\Java\jdk1.8.0_131\bin\java" -Dmaven.multiModuleProjectDirectory=D:\Project\JAVA\imooc\mmall_learning -DarchetypeCatalog=internal -Dmaven.home=D:\work_software\maven\apache-maven-3.3.9 -Dclassworlds.conf=D:\work_software\maven\apache-maven-3.3.9\bin\m2.conf "-javaagent:D:\work_software\idea\IntelliJ IDEA 2017.2.5\lib\idea_rt.jar=52195:D:\work_software\idea\IntelliJ IDEA 2017.2.5\bin" -Dfile.encoding=UTF-8 -classpath D:\work_software\maven\apache-maven-3.3.9\boot\plexus-classworlds-2.5.2.jar org.codehaus.classworlds.Launcher -Didea.version=2017.2.5 org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2:generate

[INFO] Scanning for projects...

[WARNING] 

[WARNING] Some problems were encountered while building the effective model for com:mmall:war:1.0-SNAPSHOT

[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 262, 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 mmall Maven Webapp 1.0-SNAPSHOT

[INFO] ------------------------------------------------------------------------

[INFO] 

[INFO] --- mybatis-generator-maven-plugin:1.3.2:generate (default-cli) @ mmall ---

[INFO] ------------------------------------------------------------------------

[INFO] BUILD FAILURE

[INFO] ------------------------------------------------------------------------

[INFO] Total time: 0.709 s

[INFO] Finished at: 2017-11-09T23:58:55+08:00

[INFO] Final Memory: 6M/114M

[INFO] ------------------------------------------------------------------------

[ERROR] Failed to execute goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2:generate (default-cli) on project mmall: Execution default-cli of goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2:generate failed: Plugin org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.apache.maven:maven-model:jar:3.0.4, org.sonatype.sisu:sisu-inject-plexus:jar:2.3.0, org.sonatype.sisu:sisu-guava:jar:0.9.9, org.mybatis.generator:mybatis-generator-core:jar:1.3.2, org.codehaus.woodstox:wstx-asl:jar:3.2.6: Failure to find org.apache.maven:maven-model:jar:3.0.4 in http://repo.gopopon.cn:8081/nexus/content/groups/public/ was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -> [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/PluginResolutionException

Process finished with exit code 1