我必须使用proxyHost和proxyPort设置代理以使用POST发送JSON。publicstaticfinalMediaTypeJSON=MediaType.parse("application/json;charset=utf-8");ProxyproxyTest=newProxy(Proxy.Type.HTTP,newInetSocketAddress("proxy",proxyPort));OkHttpClientclient=newOkHttpClient().proxy(proxyTest).build();//OkHttpClient.Builderbuilder=