发现一个奇怪的异常
Can't connect to X11 window server using '0.0' as the value of the DISPLAY variable.
如果服务器上安装了图形界面,真是坑, java程序会去寻找linux上的图形界面是否启动
解决：
在.bash_profile文件最后 加了个export JAVA_OPTS=-Djava.awt.headless=true
注意linux发行版本可能文件名不一样 可能为 .bashrc
再次重启Java 程序
另一个简单方法
在linux终端执行
unset DISPLAY
然后重启服务器即可.
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