Lost modified:2013-10-10 14:17:35
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今天测试突然发来文档说有时使用微博登录时会出500错误。查看了后台的代码抛出的异常如下:
2013-10-10 09:54:32 ERROR [WeiboLogin.java:89] cc.com.pinche.web.controller.WeiboLogin.loginBySinaWeibo() - 新浪微博错误 weibo4j.model.WeiboException: localhost.hao231: localhost.hao231 at weibo4j.http.HttpClient.httpRequest(HttpClient.java:422) at weibo4j.http.HttpClient.httpRequest(HttpClient.java:371) at weibo4j.http.HttpClient.get(HttpClient.java:203) at weibo4j.Users.showUserById(Users.java:28) at cc.com.pinche.web.controller.WeiboLogin.loginBySinaWeibo(WeiboLogin.java:87) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: java.net.UnknownHostException: localhost.hao231: localhost.hao231 at java.net.InetAddress.getLocalHost(InetAddress.java:1360) at weibo4j.http.HttpClient.httpRequest(HttpClient.java:379) ... 37 more weibo4j.model.WeiboException: localhost.hao231: localhost.hao231 at weibo4j.http.HttpClient.httpRequest(HttpClient.java:422) at weibo4j.http.HttpClient.httpRequest(HttpClient.java:371) at weibo4j.http.HttpClient.get(HttpClient.java:203) at weibo4j.Users.showUserById(Users.java:28) at cc.com.pinche.web.controller.WeiboLogin.loginBySinaWeibo(WeiboLogin.java:87) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: java.net.UnknownHostException: localhost.hao231: localhost.hao231 at java.net.InetAddress.getLocalHost(InetAddress.java:1360) at weibo4j.http.HttpClient.httpRequest(HttpClient.java:379) ... 37 more
查看错误提示的message很特殊是我服务器的名字localhost.hao231,在新浪微博论坛发现也有很很多人遇到这样的问题。
首先来说说解决方法:
1.若你部署再linux,那么你先获取下机器主机名:通过命令:hostname,其实在异常UnknownHostException:后面已经显示了你的机器名(我的就是localhost.hao231).
2.接着在/etc/hosts中配置相应的loopback(回环地址),添加如下:
127.0.0.1 localhost
127.0.0.1 localhost.hao231
(当然你也可以这样添加 : www.example.com(你的网站域名) localhost.hao231)
解决问题的关键就是:Caused by: java.net.UnknownHostException
新浪weibo4j.http.HttpClient.java的源码摘录如下:
public Response httpRequest(HttpMethod method, Boolean WithTokenHeader) throws WeiboException { InetAddress ipaddr; int responseCode = -1; try { ipaddr = InetAddress.getLocalHost();//UnknownHostException就是在这里抛出的,在向新浪发送请求时获取了请求端服务器的ip或 host name List<Header> headers = new ArrayList<Header>(); if (WithTokenHeader) { if (token == null) { throw new IllegalStateException("Oauth2 token is not set!"); } headers.add(new Header("Authorization", "OAuth2 " + token)); headers.add(new Header("API-RemoteIP", ipaddr.getHostAddress())); client.getHostConfiguration().getParams() .setParameter("http.default-headers", headers); for (Header hd : headers) { log(hd.getName() + ": " + hd.getValue()); } } method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false)); client.executeMethod(method); Header[] resHeader = method.getResponseHeaders(); responseCode = method.getStatusCode(); log("Response:"); log("https StatusCode:" + String.valueOf(responseCode)); for (Header header : resHeader) { log(header.getName() + ":" + header.getValue()); } Response response = new Response(); response.setResponseAsString(method.getResponseBodyAsString()); log(response.toString() + "\n"); if (responseCode != OK) { try { throw new WeiboException(getCause(responseCode), response.asJSONObject(), method.getStatusCode()); } catch (JSONException e) { e.printStackTrace(); } } return response; } catch (IOException ioe) { throw new WeiboException(ioe.getMessage(), ioe, responseCode); } finally { method.releaseConnection(); } }
getLocalHost()方法介绍:
Returns the local host.
If there is a security manager, its checkConnect
method is called with the local host name and -1
as its arguments to see if the operation is allowed. If the operation is not allowed, an InetAddress representing the loopback address is returned.
host
could be found.
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