No plugin found for prefix ‘war’ in the current project and in the plugin groups

         No plugin found for prefix ‘war’ in the current project and in the plugin groups的问题，需要在pom文件中加上：

          <dependency>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-resources-plugin</artifactId>
            <version>2.5</version>
        </dependency>