1.eclipse-> Project -> Right -> Properties-> Web Project Setting-> context root set to "/" or ""
2.tomcat5.0/6.0:<Host></Host>间加了一句<Context path="" docBase="/fts" debug="0" reloadable="true"/>
3.tomcat7.0 <Host></Host>间加了一句<Context path="/" docBase="fts" debug="0" reloadable="true"/>
Reproduced in: https: //my.oschina.net/secyaher/blog/274420