通过Maven导出war包时报错：Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.2:war (default-w

通过Maven导出war包时报错：Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.2:war (default-war) on project Ocr: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode) -> [Help 1] 

原因是找不到web.xml，在pom文件中添加如下配置可以解决：

    <build>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generatorgroupId>
                <artifactId>mybatis-generator-maven-pluginartifactId>
                <version>1.3.7version>

                <dependencies>
                    <dependency>
                        <groupId>mysqlgroupId>
                        <artifactId>mysql-connector-javaartifactId>
                        <version>5.1.42version>
                    dependency>
                dependencies>

            plugin>
            <plugin>
                <groupId>org.apache.maven.pluginsgroupId>
                <artifactId>maven-war-pluginartifactId>
                <version>2.2version>
                <configuration>
                    <webXml>WebContent\WEB-INF\web.xmlwebXml>
                configuration>
            plugin>

        plugins>
    build>