如下问题原因 java.net.UnknownHostException: ccwechat.pkufi.com: Na

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如下问题原因 java.net.UnknownHostException: ccwechat.pkufi.com: Name or service not known at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:866) at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1258) at java.net.InetAddress.getAllByName0(InetAddress.java:1211) at java.net.InetAddress.getAllByName(InetAddress.java:1127) at java.net.InetAddress.getAllByName(InetAddress.java:1063) at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45) at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:111) at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353) at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) at com.ebao.ls.mcde.found.outbound.union.service.JsonCoreService.postCore(JsonCoreService.java:146) at com.ebao.ls.mcde.trans.event.listener.PassByEventListener.onApplicationEvent(PassByEventListener.java:142) at com.ebao.ls.mcde.trans.event.listener.PassByEventListener.onApplicationEvent(PassByEventListener.java:34) at sun.reflect.GeneratedMethodAccessor275.invoke(

这个异常 `java.net.UnknownHostException: ccwechat.pkufi.com: Name or service not known` 表示 DNS 解析失败，主要可能的原因包括： 1. DNS配置问题 - 域名 `ccwechat.pkufi.com` 不存在或未正确配置 - DNS服务器无法解析该域名 - 网络连接异常 2. 具体排查建议： - 检查域名是否正确 - 验证网络连接是否正常 - 检查本地DNS配置 - 使用 `ping ccwechat.pkufi.com` 测试域名是否可解析 - 检查网络防火墙设置 - 确认服务器DNS服务器配置 3. 可能的解决方案： - 配置正确的DNS服务器 - 在 hosts 文件中添加域名映射 - 检查网络连接 - 确认域名注册和解析是否正确建议进一步排查网络和DNS配置，确认域名的可用性。