maven install Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.1.1:war (default-war) on project web

    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <version>2.4</version>
            <configuration>
                <webResources>
                    <resource>
                        <directory>WebContent</directory>
                    </resource>
                </webResources>
            </configuration>
        </plugin>
    </plugins>

如果项目中原本没有web.xml文件,就需要加上下面的配置:

    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <version>2.4</version>
            <configuration>
                <failOnMissingWebXml>false</failOnMissingWebXml>
            </configuration>
        </plugin>
    </plugins>

记住，如果修改了maven的.m2\settings.xml文件，又用的是eclipse的maven插件，需要到eclipse的preference下的maven处user settings更新下.setting.xml文件的加载。