Xlib: connection to ":0.0" refused by server解决方法

在linux系统中用Oracle帐号执行DBCA或其他JAVA图形界面程序时，报错： Xlib: connection to ":0.0" refused by server Xlib: No protocol specified Error: Can't open display: :0.0 解决办法：用root登陆，在#提示符后输入： xhost local:oracle non-network local connections being added to access control list 敲回车运行后出现： non-network local connections being added to access control list xhost: bad hostname "non-network" xhost: bad hostname "local" xhost: bad hostname "connections" xhost: bad hostname "being" xhost: bad hostname "added" xhost: bad hostname "to" xhost: bad hostname "access" xhost: bad hostname "control" xhost: bad hostname "list" 此时再 su - oracle 切换到Oracle用户执行图形界面任务就可以了 man xhost中有这样一段        A complete name has the syntax ‘‘family:name’’ where the families are as follows:        inet      Internet host (IPv4)        inet6     Internet host (IPv6)        dnet      DECnet host        nis       Secure RPC network name        krb       Kerberos V5 principal        local     contains only one name, the empty string        si        Server Interpreted 其中local那个是用来解决同一台机器的不同用户访问X的问题的。