通过maven build发布web项目到tomcat时报如下异常：

[INFO] ------------------------------------------------------------------------[INFO] BUILD FAILURE[INFO] ------------------------------------------------------------------------[INFO] Total time: 4.671 s[INFO] Finished at: 2015-11-23T15:51:07+08:00[INFO] Final Memory: 16M/310M[INFO] ------------------------------------------------------------------------[ERROR] Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.1:deploy (default-cli) on project spring-security-cas: Cannot invoke Tomcat manager: Connection reset by peer: socket write error -> [Help 1][ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.[ERROR] Re-run Maven using the -X switch to enable full debug logging.[ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles:[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

　　原因为：

　　　　1、检查tomcat安装目录下的conf/tomcat-users.xml中的<tomcat-users>节点下是否添加了权限的设置

　　　　2、maven安装目录下的conf/settings.xml中server的账号和密码是否正确

　　更多详情见：