常遇到的JCO问题及解决办法

下面这些问题是经常出现在NW 2004s的JCO问题，对于这些JCO问题提供一些解决的方法，列举的不全的，系统同仁能补充。
1. com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=ptgsap10 GROUP=SPACE R3NAME=EC6 MSSERV=sapmsEC6 PCS=1 LOCATION CPIC (TCP/IP) on local host with Unicode ERROR partner '192.x.x.x:sapmsEC6' not reached TIME Fri Sep 19 14:21:52 2008 RELEASE 700 COMPONENT NI (network interface) VERSION 38 RC -10 MODULE nixxi.cpp LINE 2770 DETAIL NiPConnect2 SYSTEM CALL connect ERRNO 10061 ERRNO TEXT WSAECONNREFUSED: Connection refused COUNTER 1
解决办法
检查R3系统的在NW中是否技术系统配置正确
2. com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=sapde600 GROUP=PUBLIC R3NAME=DE6 MSSERV=sapmsDE6 PCS=1 ERROR service 'sapmsDE6' unknown TIME Fri Sep 19 08:44:13 2008 RELEASE 700 COMPONENT NI (network interface) VERSION 38 RC -3 MODULE nixxhsl.cpp LINE 776 DETAIL NiHsLGetServNo: service name cached as unknown COUNTER 1
解决办法
在portal服务器的system32/drivers/etc/services文件中增加sapmsDE6 3600/tcp消息服务
3. com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=qashost GROUP=ABC R3NAME=QAS MSSERV=sapmsQAS PCS=1 ERROR Group ABC not found TIME Fri Sep 19 14:30:18 2008 RELEASE 700 COMPONENT LG VERSION 5 RC -6 MODULE lgxx.c LINE 4298 DETAIL LgIGroupX COUNTER 1
解决方法
检查LOGON Group
登陆到R3系统，T-code SMLG检查登陆组
登陆到SLD http://:50000/sld/index.jsp选择技术系统和消息服务增加该登陆组
然后回到JCO页面，选择该登陆组测试JCO
4.com.sap.mw.jco.JCO$Exception: (103) RFC_ERROR_LOGON_FAILURE: User SAPUSER has no RFC authorization for function group SYST
解决办法
检查Client配置是否正确
检查R3授权是否激活
检查配置中的Logon Ticket模式或者user/password模式中设置是否正确
5.com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to enrich connection properties
解决办法
如果你是采用的X.509的认证方式, 将其改成Logon Ticket或者user/password方式连接