Java UnirestException:Tomcat 7上的connect超时
在工作中,我试图在Tomcat7服务器上部署一个基于Java8的应用程序 应用程序应该基于另一台服务器(仍然是我们的服务器)调用一些RESTful api。通过在线阅读一些资源,我决定使用一个名为的HTTP请求客户端库 我尝试使用Postman调用api,一切正常。 我在本地Tomcat7服务器上部署了我的应用程序,它运行平稳,没有问题,Unirest正确地完成了它的工作 当我在Tomcat7服务器上部署应用程序时,每次Unirest调用都会导致连接超时 这是stacktrace:Java UnirestException:Tomcat 7上的connect超时,java,tomcat,connection-timeout,unirest,Java,Tomcat,Connection Timeout,Unirest,在工作中,我试图在Tomcat7服务器上部署一个基于Java8的应用程序 应用程序应该基于另一台服务器(仍然是我们的服务器)调用一些RESTful api。通过在线阅读一些资源,我决定使用一个名为的HTTP请求客户端库 我尝试使用Postman调用api,一切正常。 我在本地Tomcat7服务器上部署了我的应用程序,它运行平稳,没有问题,Unirest正确地完成了它的工作 当我在Tomcat7服务器上部署应用程序时,每次Unirest调用都会导致连接超时 这是stacktrace: co
com.mashape.unirest.http.exceptions.UnirestException: org.apache.http.conn.ConnectTimeoutException: Connect to srv-erp2web.rold.corp:80 [srv-erp2web.rold.corp/192.168.5.100] failed: connect timed out
at com.mashape.unirest.http.HttpClientHelper.request(HttpClientHelper.java:143)
at com.mashape.unirest.request.BaseRequest.asJson(BaseRequest.java:68)
at com.rold.industry.api.common.ApiCaller.getAccessToken(ApiCaller.java:66)
at com.rold.industry.context.ContextListener.contextInitialized(ContextListener.java:118)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5010)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5504)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:553)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1648)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1445)
at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServlet.java:284)
at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:206)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:213)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:610)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.http.conn.ConnectTimeoutException: Connect to srv-erp2web.rold.corp:80 [srv-erp2web.rold.corp/192.168.5.100] failed: connect timed out
at org.apache.http.impl.conn.HttpClientConnectionOperator.connect(HttpClientConnectionOperator.java:134)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:319)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:363)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:363)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
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:106)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)
at com.mashape.unirest.http.HttpClientHelper.request(HttpClientHelper.java:138)
... 46 more
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:72)
at org.apache.http.impl.conn.HttpClientConnectionOperator.connect(HttpClientConnectionOperator.java:125)
... 57 more
我在网上找不到任何关于这是如何发生的线索。真正奇怪的是Unirest在本地Tomcat上正确地调用了api
下面是我用来调用api的代码的快照:
public static String getAccessToken() {
logger.log(Level.FINE, "calling smartfabauth to get authentication token");
String accessToken = "";
try {
Unirest.setTimeouts(0, 0); // NO TIMEOUT
HttpResponse<JsonNode> response = Unirest.post(POST_TOKEN_ENDPOINT)
.header("content-type", "application/x-www-form-urlencoded")
.header("cache-control", "no-cache")
.body("grant_type=" + GRANT_TYPE + "&client_id=" + CLIENT_ID + "&client_secret=" + CLIENT_SECRET + "&scope=" + SCOPE)
.asJson();
accessToken = response.getBody().getObject().getString("access_token");
} catch (UnirestException | JSONException e) {
logger.log(Level.SEVERE, "[Exception] getAccessToken", e);
}
logger.log(Level.FINE, "authentication token obtained");
return accessToken;
}
公共静态字符串getAccessToken(){
log(Level.FINE,“调用smartfabauth获取身份验证令牌”);
字符串accessToken=“”;
试一试{
设置超时(0,0);//没有超时
HttpResponse response=Unirest.post(post\u令牌\u端点)
.header(“内容类型”、“应用程序/x-www-form-urlencoded”)
.header(“缓存控制”、“无缓存”)
.body(“grant_type=“+grant_type+”&client_id=“+client_id+”&client_secret=“+client_secret+”&scope=“+scope”)
.asJson();
accessToken=response.getBody().getObject().getString(“访问令牌”);
}catch(UnirestException | jsoneException e){
logger.log(Level.SEVERE,“[Exception]getAccessToken”,e);
}
logger.log(Level.FINE,“获得认证令牌”);
返回accessToken;
}
请注意,POST\u-TOKEN\u-ENDPOINT
、GRANT\u-TYPE
、CLIENT\u-ID
、CLIENT\u-SECRET
和SCOPE
是在类中声明的一些常量,它们是正确调用api所必需的
任何帮助都将不胜感激
提前感谢。我怀疑这是
防火墙/代理问题
您可以通过在要运行Tomcat 7的机器上pingsrv-erp2web.rold.corp
来检查连接
如果您看到数据包丢失,请在tracert
(windows)或traceroute
(*nix)计算机下面尝试
通常的语法是tracert srv-erp2web.rold.corp
上面的tracert显示了从源到目标的请求路径。并告诉请求失败的位置
如果数据包丢失是由于代理服务器造成的,请提供代理主机、端口和凭据(如果有)
如果数据包丢失是由于防火墙引起的,请启用端口
希望这有帮助 我怀疑这是
防火墙/代理问题
您可以通过在要运行Tomcat 7的机器上pingsrv-erp2web.rold.corp
来检查连接
如果您看到数据包丢失,请在tracert
(windows)或traceroute
(*nix)计算机下面尝试
通常的语法是tracert srv-erp2web.rold.corp
上面的tracert显示了从源到目标的请求路径。并告诉请求失败的位置
如果数据包丢失是由于代理服务器造成的,请提供代理主机、端口和凭据(如果有)
如果数据包丢失是由于防火墙引起的,请启用端口
希望这有帮助 我怀疑这可能是一个
代理
/防火墙
问题。您可以从运行tomcat的机器上尝试pingsrv-erp2web.rold.corp:80
?您也可以从同一台机器上运行tracert
/traceroute
。我尝试ping:ping-c3srv-erp2web.rold.corp我收到:ping srv-erp2web.rold.corp(192.168.5.100)56(84)字节的数据srv-erp2web.rold.corp ping统计---发送3个数据包,接收0个,100%数据包丢失,时间2015msSo,是否尝试查找此数据包丢失的原因?是否存在代理/防火墙?我怀疑可能是代理问题。您可以从运行tomcat的机器上尝试pingsrv-erp2web.rold.corp:80
?您也可以从同一台机器上运行tracert
/traceroute
。我尝试ping:ping-c3srv-erp2web.rold.corp我收到:ping srv-erp2web.rold.corp(192.168.5.100)56(84)字节的数据srv-erp2web.rold.corp ping统计---发送3个数据包,接收0个,100%数据包丢失,时间2015msSo,是否尝试查找此数据包丢失的原因?是否存在代理/防火墙??正如您所怀疑的,是防火墙问题。谢谢你的提示+1并接受!很高兴知道这对你有帮助!正如您所怀疑的,这是防火墙问题。谢谢你的提示+1并接受!很高兴知道这对你有帮助!