您可以尝试:
1. 检查输入的网址,或者返回上一页
An exception occurred processing [projectManager/project/newdoc/index.jsp] at line [34] 31: if (user == null) { 32: out.print(""); 33: } 34: String userid = user.getInnerId(); 35: %> 36: 37: Stacktrace: