maven tomcat7:deploy

命令maven tomcat7:deploy，部署第一次成功，然后就一直失败，提示war包上传不了。

[INFO] I/O exception (java.net.SocketException) caught when processing request: Connection reset
[INFO] Retrying request
Uploading: http://localhost:8080/manager/text/deploy?path=%2iplover

[INFO] I/O exception (java.net.SocketException) caught when processing request: Connection reset
[INFO] Retrying request
Uploading: http://localhost:8080/manager/text/deploy?path=%2iplover

[INFO] I/O exception (java.net.SocketException) caught when processing request:         Connection reset
[INFO] Retrying request
Uploading: http://localhost:8080/manager/text/deploy?path=%2iplover

解决方案是把命令改成 

clean tomcat7:redeploy

https://stackoverflow.com/questions/25336099/error-when-i-try-deploy-application-to-tomcat7-server