测试外网程序：
[root@bogon classes]# curl -H "Content-Type: application/json" -X POST -d ‘{"username": "tea64309", "password":"100", "captcha":"1"}‘ "http://1.189.111.86:7777/dsssoserver/doLogin"
curl: (56) Recv failure: Connection reset by peer
测试内网程序：
[root@bogon classes]# curl -H "Content-Type: application/json" -X POST -d ‘{"username": "tea64309", "password":"100", "captcha":"1"}‘ "http://10.100.100.63:7777/dsssoserver/doLogin"
<html><head><title>500 Internal Server Error</title></head><body bgcolor=‘white‘><center><h1>500 Internal Server Error</h1></center><hr><center><a href=‘https://gitee.com/jfinal/jfinal‘ target=‘_blank‘><b>Powered by JFinal 4.7</b></a></center></body></html>[root@bogon classes]#
原文：https://www.cnblogs.com/littlehb/p/11935669.html