登录时报错“调用Action出错, Connection refused: connect”

2016-08-16 15:41:44 加载模块：/UI2/portal/base/login ...
2016-08-16 15:41:44 加载模块：/UI2/portal/base/login 
2016-08-16 15:41:45 I/O exception (java.net.ConnectException) caught when processing request: Connection refused: connect
2016-08-16 15:41:45 Retrying request
2016-08-16 15:41:46 I/O exception (java.net.ConnectException) caught when processing request: Connection refused: connect
2016-08-16 15:41:46 Retrying request
2016-08-16 15:41:47 I/O exception (java.net.ConnectException) caught when processing request: Connection refused: connect
2016-08-16 15:41:47 Retrying request

这个错误一般情况下是修改了tomcat的端口(apache-tomcat\conf\server.xml中的8080端口)，但%JUSTEP_HOME%\conf\server.xml(model同级的conf\server.xml)中配置的端口号没有修改
如果版本中带的有studio修改端口的时候推荐通过studio去修改，studio默认会修改tomcat和model同级的conf\server.xml中的端口
studio的窗口——首选项——studio配置——Tomcat端口处修改，然后点应用、确定即可