1.maven-compiler-plugin外掛版本資訊警告提示

[WARNING] 
[WARNING] Some problems were encountered while building the effective model for com.mimhope.jettycode:JettyCode:war:0.0.1-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 14, column 13
[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] 
 

通過'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing.這句話可以瞭解到沒有設定版本資訊；

有問題的設定

<plugin>
	<artifactId>maven-compiler-plugin</artifactId>
	<configuration>
	  <source>1.5</source>
	  <target>1.5</target>
	  <encoding>UTF-8</encoding>
	  <verbose>false</verbose>
	</configuration>
</plugin>
 

新增一句話-設定maven-compiler-plugin版本

<version>2.3.2</version>

修改以後結果如下

<plugin>
	        <artifactId>maven-compiler-plugin</artifactId>
	        <version>2.3.2</version>
	        <configuration>
	          <source>1.5</source>
	          <target>1.5</target>
	          <encoding>UTF-8</encoding>
	          <verbose>false</verbose>
	        </configuration>
</plugin>
 

重新執行程式就不會有這個警告了；

對照官網用法：http://maven.apache.org/plugins/maven-compiler-plugin/usage.html

<project>
  ...
  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.7.0</version>
          <configuration>
            <!-- put your configurations here -->
          </configuration>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
  ...
</project>