jar包启动失败 java Name or service not known解决方案
2019-09-21 03:13
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本人在生产环境中的一台机器使用了写好的
jar包的
启动脚本发现启动不了jar包,然后自己使用java命令单独启动jar包,出现以下报错
root@aly-gz-web-1:/etc/init.d# java -Dfile.encoding=UTF-8 -Xmx2048M \ -Dcom.sun.management.jmxremote \ -Dcom.sun.management.jmxremote.port=30113 \ -Dcom.sun.management.jmxremote.authenticate=false \ -Dcom.sun.management.jmxremote.ssl=false \ -jar /data/appdata/kjyl_1000020/kjly.jar Error: Exception thrown by the agent : java.net.MalformedURLException: Local host name unknown: java.net.UnknownHostException: aly-gz-web-1: aly-gz-web-1: Name or service not known
该报错的引起是因为服务器无法找到当前主机名对应的ip
然后我就去查看本机的
/etc/hosts文件,发现hosts文件中该机器
公网IP和该机器的
主机名映射的有问题,然后将其修改为正常后,如下:
# 编辑/etc/hosts文件 vim /etc/hosts # 有问题的 154.188.27.71 aly-gz-web-100 # 修改后(正确的主机名) 154.188.27.71 aly-gz-web-1
最后在执行jar包启动脚本,成功启动
root@aly-gz-web-1:/etc/init.d# /etc/init.d/kjyl_1000020 start {"changed": true, "changes": "kjyl_1000020 start Success"}
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