NacosException: java.net.UnknownHostException: jmenv.tbsite.net

第一次接触Nacos，启动时报错（java.net.UnknownHostException: jmenv.tbsite.net）解决方案。

错误信息：

Caused by: java.net.UnknownHostException: jmenv.tbsite.net
        at java.net.InetAddress.getAllByName0(InetAddress.java:1280)
        at java.net.InetAddress.getAllByName(InetAddress.java:1192)
        at java.net.InetAddress.getAllByName(InetAddress.java:1126)
        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.alibaba.nacos.common.http.BaseHttpClient.execute(BaseHttpClient.java:45)
        at com.alibaba.nacos.common.http.NacosSyncHttpClient.get(NacosSyncHttpClient.java:46)
        at com.alibaba.nacos.core.cluster.lookup.AddressServerMemberLookup.syncFromAddressUrl(AddressServerMemberLookup.java:155)
        at com.alibaba.nacos.core.cluster.lookup.AddressServerMemberLookup.run(AddressServerMemberLookup.java:101)
        ... 123 common frames omitted

解决方案1：

Nacos默认是集群（cluster）启动，将其设置为单机（standalone）启动则不会报这个错。若需要集群启动则需要进行相关的集群配置。

windows启动：

startup.cmd -m standalone

linux启动：

startup.sh -m standalone

 

解决方案2：

启动类 startup.cmd/startup.sh 修改信息

# startup.sh删除
export MODE="cluster"
# 调整为
export MODE="standalone"

# startup.cmd删除
set MODE="cluster"
# 调整为
set MODE="standalone"

 

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原文链接：https://blog.csdn.net/qq_25223941/article/details/125309505