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

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

maven打包成war时,报错:Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.1.1:war (default-war) on project web_nanchang: Error assembling WAR: webxml attribute is required
原因:找不到web.xml,但是项目中明明有这个文件,在WebContent/WEB-INF/文件夹下,就是识别不了
解决方法:
需要在pom.xml文件中,加上maven-war-plugin插件配置
在<build>节点中增加:

    <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>

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