HttpURLConnection出现 java.net.UnknownHostException

HttpURLConnection偶尔会出现 java.net.UnknownHostException,这是为什么呢,怎么解决这个问题?

3个回答

我也喷到过 如果是linux 系统下 vi /etc/hosts

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java.net.UnknownHostException: src="https运行报错
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关于java.net.httpUrlConnection的problem..
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java.net.ConnectException: Connection refused: connect
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奇葩问题java.io.IOException: Error writing to server
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使用HttpClient时遇到的 java.net.SocketException: Socket closed异常
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org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 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:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:615) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:662) Caused by: java.net.SocketException: SocketException invoking http://10.131.120.99:8088/workflow/ws/PartnerService: Socket Closed at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.mapException(HTTPConduit.java:1422) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1407) at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56) at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:640) at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62) ... 84 more Caused by: java.net.SocketException: Socket Closed at java.net.PlainSocketImpl.getOption(PlainSocketImpl.java:286) at java.net.Socket.getSoTimeout(Socket.java:1032) at sun.net.www.http.HttpClient.available(HttpClient.java:356) at sun.net.www.http.HttpClient.New(HttpClient.java:273) at sun.net.www.http.HttpClient.New(HttpClient.java:310) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:987) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:923) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:841) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1031) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleHeadersTrustCaching(HTTPConduit.java:1359) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.onFirstWrite(HTTPConduit.java:1301) at org.apache.cxf.io.AbstractWrappedOutputStream.write(AbstractWrappedOutputStream.java:42) at org.apache.cxf.io.AbstractThresholdOutputStream.write(AbstractThresholdOutputStream.java:69) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1379) ... 87 more org.apache.cxf.interceptor.Fault: Could not send Message. at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:64) at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263) at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:519) at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:449) at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:352) at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:304) at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:324) at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:310) at com.boco.mis.cxf.CXFServices.SoapClient.callService(SoapClient.java:41) at com.boco.mis.account.action.AccountAction.goSmp(AccountAction.java:135) 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 com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452) at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254) at com.boco.mss.plat.interceptor.ErrorInterceptor.intercept(ErrorInterceptor.java:25) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263) at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:142) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:166) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52) at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:485) at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77) at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.boco.common.base.interceptor.LoginInterceptor.doFilter(LoginInterceptor.java:112) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 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:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:615) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:662) Caused by: java.net.SocketException: SocketException invoking http://10.131.120.99:8088/workflow/ws/PartnerService: Socket Closed at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.mapException(HTTPConduit.java:1422) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1407) at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56) at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:640) at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62) ... 84 more Caused by: java.net.SocketException: Socket Closed at java.net.PlainSocketImpl.getOption(PlainSocketImpl.java:286) at java.net.Socket.getSoTimeout(Socket.java:1032) at sun.net.www.http.HttpClient.available(HttpClient.java:356) at sun.net.www.http.HttpClient.New(HttpClient.java:273) at sun.net.www.http.HttpClient.New(HttpClient.java:310) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:987) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:923) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:841) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1031) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleHeadersTrustCaching(HTTPConduit.java:1359) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.onFirstWrite(HTTPConduit.java:1301) at org.apache.cxf.io.AbstractWrappedOutputStream.write(AbstractWrappedOutputStream.java:42) at org.apache.cxf.io.AbstractThresholdOutputStream.write(AbstractThresholdOutputStream.java:69) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1379) ... 87 more [2018-12-20 17:37:19,900]-ERROR (SoapClient.java:44)|send msg failedCould not send Message.
Connection timed out:
java.net.ConnectException: Connection timed out: connect java.net.PlainSocketImpl.socketConnect(Native Method) java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213) java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200) java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) java.net.Socket.connect(Socket.java:529) java.net.Socket.connect(Socket.java:478) sun.net.NetworkClient.doConnect(NetworkClient.java:163) sun.net.www.http.HttpClient.openServer(HttpClient.java:411) sun.net.www.http.HttpClient.openServer(HttpClient.java:525) sun.net.www.http.HttpClient.<init>(HttpClient.java:208) sun.net.www.http.HttpClient.New(HttpClient.java:291) sun.net.www.http.HttpClient.New(HttpClient.java:310) sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:987) sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:923) sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:841) sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1195) edu.yale.its.tp.cas.util.SecureURL.retrieve(SecureURL.java:70) edu.yale.its.tp.cas.client.ServiceTicketValidator.validate(ServiceTicketValidator.java:210) edu.yale.its.tp.cas.client.filter.CASFilter.getAuthenticatedUser(CASFilter.java:159) edu.yale.its.tp.cas.client.filter.CASFilter.doFilter(CASFilter.java:133) net.sf.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:303) net.sf.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:173) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259) 使用单点登入的时候遇到这种问题,登入跳不到页面,总连接超时。。。不知道为什么 哪位大神能帮帮我吗
tomcat 7.0,使用ssm,项目运行正常,但是启动过程上卡了100多秒,后面使用正常
信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. 十一月 16, 2017 4:26:23 下午 org.apache.catalina.core.ApplicationContext log 信息: No Spring WebApplicationInitializer types detected on classpath java.net.ConnectException: Connection refused (Connection refused) 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 java.net.Socket.connect(Socket.java:538) at sun.net.NetworkClient.doConnect(NetworkClient.java:180) at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) at sun.net.www.http.HttpClient.<init>(HttpClient.java:242) at sun.net.www.http.HttpClient.New(HttpClient.java:339) at sun.net.www.http.HttpClient.New(HttpClient.java:357) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309) at org.springframework.web.context.ContextListener.post(ContextListener.java:59) at org.springframework.web.context.ContextListener.contextInitialized(ContextListener.java:38) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5110) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5633) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1700) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1690) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)
连接网络异常java.net.SocketTimeoutException
想在Android项目中访问连接dynamic web project下的servlet,url是这么写的:http://172.16.58.118:8080/videonews/servlet/SendToWebServlet,在ie上是可以访问的,模拟器上也可以,但在用真机测试,就出现下面问题: java.net.SocketTimeoutException: failed to connect to /172.16.58.118 (port 8080) after 5000ms 部分代码: String path = "http://172.16.58.118:8080/videonews/servlet/SendToWebServlet"; StringBuilder urlBuilder = new StringBuilder(path); urlBuilder.append("?"); urlBuilder.append("IDnum="); urlBuilder.append(IDnum); URL url = new URL(urlBuilder.toString()); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(5000); conn.setRequestMethod("GET"); if(conn.getResponseCode() == 200){ InputStream inStream = conn.getInputStream(); //连接成功,得到xml格式的数据流 return parseXml(inStream); ... 查了很久,不知道什么问题,希望得到高手指导,谢谢
报错java.net.SocketException: Software caused connection abort: recv failed 怎么办??
<div class="quote_title">写道</div> <div class="quote_div">在利用google搜索抓取结果页面的时候总抛出异常:</div> <div class="quote_div"> <span style="color: #ff0000;">java.net.SocketException: Software caused connection abort: recv failed</span><br> at java.net.SocketInputStream.socketRead0(Native Method)<br> at java.net.SocketInputStream.read(SocketInputStream.java:147)<br> at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)<br> at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)<br> at java.io.BufferedInputStream.read(BufferedInputStream.java:317)<br> at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:697)<br> at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:640)<br> at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:662)<br> at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1195)<br> at AttrExtractor.search(AttrExtractor.java:96)<br> at AttrExtractor.main(AttrExtractor.java:56)</div> <div class="quote_div">错误的地方说是在BufferedReader reader=new BufferedReader(new InputStreamReader(connection.getInputStream())); </div> <div class="quote_div">我是个菜鸟,不知道为什么报错,有没有大牛可以详细告诉我怎么办?!!!<img src="/images/smiles/icon_cry.gif" alt=""> </div> <div class="quote_div"><br></div> <div class="quote_div">url = new URL("http://www.google.com.hk/search?hl=en&amp;q="+ss+"&amp;ie=utf-8&amp;oe=utf-8&amp;start=0"); <br>HttpURLConnection connection=(HttpURLConnection) url.openConnection(); <br>connection.setConnectTimeout(12000); <br>connection.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)"); <br>connection.setRequestProperty("Accept", " images/gif, image/x-xbitmap, image/jpeg ,*/*"); <br>connection.setRequestProperty("Accept-Encoding", "deflate"); <br>connection.setRequestProperty("Accept-Charset", "null"); <br>connection.setRequestProperty("Connection", "Keep-Alive"); <br>connection.setDoInput(true); <br>connection.setInstanceFollowRedirects(false); ///防止Server redirected too many times <br>connection.setRequestMethod("GET"); <br>connection.connect(); <br><br><span style="color: #ff0000;">BufferedReader reader=new BufferedReader(new InputStreamReader(connection.getInputStream())); <br></span>String line=null; <br>String s = ""; <br>StringBuffer sb = new StringBuffer(""); <br>//读取页面内容 <br>while ((s = reader.readLine()) != null) { <br>sb.append(s+"\r\n"); <br>}</div> <p> </p>
压力测试的时候,抛出一个异常
设置了300个线程去压力测试软件 于是报了这个一个异常,谁知道是怎么回事? 网上有人说是tomcat最大线程数的事 ``` java.net.SocketException: Permission denied: connect at java.net.DualStackPlainSocketImpl.connect0(Native Method) at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79) 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.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at java.net.Socket.connect(Socket.java:538) at sun.net.NetworkClient.doConnect(NetworkClient.java:180) at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) at sun.net.www.http.HttpClient.<init>(HttpClient.java:242) at sun.net.www.http.HttpClient.New(HttpClient.java:339) at sun.net.www.http.HttpClient.New(HttpClient.java:357) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966) at org.apache.jmeter.protocol.http.sampler.HTTPJavaImpl.sample(HTTPJavaImpl.java:482) at org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:74) at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1146) at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:1135) at org.apache.jmeter.threads.JMeterThread.executeSamplePackage(JMeterThread.java:465) at org.apache.jmeter.threads.JMeterThread.processSampler(JMeterThread.java:410) at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:241) at java.lang.Thread.run(Thread.java:748) ```
Jenkins构建maven项目失败报错:
ERROR: Failed to parse POMs hudson.util.IOException2: Failed to access https://cds.sun.com/is-bin/INTERSHOP.enfinity/WFS/CDS-CDS_Developer-Site/en_US/-/USD/ViewProductDetail-Start?ProductRef=C:\Jdk1.7 at hudson.tools.JDKInstaller.locateStage1(JDKInstaller.java:352) at hudson.tools.JDKInstaller.locate(JDKInstaller.java:298) at hudson.tools.JDKInstaller.performInstallation(JDKInstaller.java:121) at hudson.tools.InstallerTranslator.getToolHome(InstallerTranslator.java:61) at hudson.tools.ToolLocationNodeProperty.getToolHome(ToolLocationNodeProperty.java:106) at hudson.tools.ToolInstallation.translateFor(ToolInstallation.java:149) at hudson.model.JDK.forNode(JDK.java:111) at hudson.model.AbstractBuild.getEnvironment(AbstractBuild.java:745) at hudson.maven.MavenModuleSetBuild.getEnvironment(MavenModuleSetBuild.java:157) at hudson.maven.MavenModuleSetBuild$RunnerImpl.doRun(MavenModuleSetBuild.java:573) at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:423) at hudson.model.Run.run(Run.java:1362) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:467) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:145) Caused by: java.net.UnknownHostException: cds.sun.com at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1676) at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1674) at java.security.AccessController.doPrivileged(Native Method) at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1672) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1245) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) at hudson.tools.JDKInstaller.locateStage1(JDKInstaller.java:340) ... 14 more Caused by: java.net.UnknownHostException: cds.sun.com at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:579) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:625) at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:160) at sun.net.NetworkClient.doConnect(NetworkClient.java:180) at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:275) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:933) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1301) at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:2691) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getHeaderField(HttpsURLConnectionImpl.java:291) at hudson.tools.JDKInstaller.locateStage1(JDKInstaller.java:334) ... 14 more Finished: FAILURE 好像是连不上cds.sun.com的原因, 不理解怎么改
Android Studio编译器报空指针
错误信息如下: java.lang.NullPointerException java.lang.RuntimeException: java.lang.NullPointerException at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1488) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474) at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:3018) at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:489) at com.intellij.util.io.HttpRequests.openConnection(HttpRequests.java:498) at com.intellij.util.io.HttpRequests.access$300(HttpRequests.java:49) at com.intellij.util.io.HttpRequests$RequestImpl.getConnection(HttpRequests.java:278) at com.intellij.util.io.RequestBuilder.lambda$tryConnect$0(RequestBuilder.java:49) at com.intellij.util.io.HttpRequests.lambda$doProcess$0(HttpRequests.java:403) at com.intellij.util.net.ssl.CertificateManager.runWithUntrustedCertificateStrategy(CertificateManager.java:335) at com.intellij.util.io.HttpRequests.doProcess(HttpRequests.java:403) at com.intellij.util.io.HttpRequests.process(HttpRequests.java:383) at com.intellij.util.io.HttpRequests.access$100(HttpRequests.java:49) at com.intellij.util.io.HttpRequests$RequestBuilderImpl.connect(HttpRequests.java:252) at com.intellij.util.io.RequestBuilder.tryConnect(RequestBuilder.java:48) at com.intellij.util.net.HttpProxySettingsUi.lambda$null$4(HttpProxySettingsUi.java:156) at com.intellij.openapi.progress.impl.CoreProgressManager$2.run(CoreProgressManager.java:247) at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:750) at com.intellij.openapi.progress.impl.CoreProgressManager$5.run(CoreProgressManager.java:434) at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:157) at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:580) at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:525) at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:85) at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:144) at com.intellij.openapi.application.impl.ApplicationImpl.lambda$null$10(ApplicationImpl.java:565) at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:305) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.NullPointerException at com.android.tools.idea.updater.AndroidSdkUpdaterPlugin$AndroidAuthenticator.getPasswordAuthentication(AndroidSdkUpdaterPlugin.java:97) at com.intellij.util.proxy.CommonProxy$CommonAuthenticator.getPasswordAuthentication(CommonProxy.java:275) at java.net.Authenticator.requestPasswordAuthentication(Authenticator.java:248) at java.net.SocksSocketImpl$2.run(SocksSocketImpl.java:162) at java.net.SocksSocketImpl$2.run(SocksSocketImpl.java:160) at java.security.AccessController.doPrivileged(Native Method) at java.net.SocksSocketImpl.authenticate(SocksSocketImpl.java:159) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:472) at java.net.Socket.connect(Socket.java:589) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) at sun.net.www.http.HttpClient.<init>(HttpClient.java:211) at sun.net.www.http.HttpClient.New(HttpClient.java:308) at sun.net.www.http.HttpClient.New(HttpClient.java:326) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1181) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1546) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474) at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480) ... 27 more
HttpUrlConnection socks5 代理问题
代码如下: InetSocketAddress inetSocketAddress = new InetSocketAddress(proxyIp, 1080); Proxy proxy = new Proxy(Proxy.Type.SOCKS, inetSocketAddress); URL url = new URL("https://XXXX"); HttpURLConnection conn = (HttpURLConnection)url.openConnection(proxy); conn.setRequestMethod("POST"); 报错如下: java.net.SocketException: SOCKS : authentication failed at java.net.SocksSocketImpl.connect(Unknown Source) at java.net.Socket.connect(Unknown Source) at sun.net.NetworkClient.doConnect(Unknown Source) at sun.net.www.http.HttpClient.openServer(Unknown Source) at sun.net.www.http.HttpClient.openServer(Unknown Source) at sun.net.www.http.HttpClient.<init>(Unknown Source) at sun.net.www.http.HttpClient.New(Unknown Source) at sun.net.www.http.HttpClient.New(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) 如何设置不需要用户密码验证。求大神!!!
求助:springboot报错:Caused by: java.net.ConnectException: connect: Address is invalid on local machine, or port is not valid on remote machine
报错详细信息: ``` 2019-10-16 17:32:09.395 INFO [cloud-agr-service,,,] 17972 --- [erListUpdater-0] c.netflix.config.ChainedDynamicProperty : Flipping property: gateway-zuul.ribbon.ActiveConnectionsLimit to use NEXT property: niws.loadbalancer.availabilityFilteringRule.activeConnectionsLimit = 2147483647 2019-10-16 17:32:12.545 ERROR [cloud-agr-service,124633d2ab2910a8,ee13ca3fab5a335a,false] 17972 --- [o-auto-1-exec-5] o.s.c.s.i.web.ExceptionLoggingFilter : Uncaught exception thrown org.springframework.web.util.NestedServletException: Request processing failed; nested exception is feign.RetryableException: connect: Address is invalid on local machine, or port is not valid on remote machine executing GET http://cloud-landmark/category/findOneAll at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) ~[javax.servlet-api-3.1.0.jar:3.1.0] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) ~[javax.servlet-api-3.1.0.jar:3.1.0] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) ~[spring-boot-actuator-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:158) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationProcessingFilter.doFilter(OAuth2AuthenticationProcessingFilter.java:176) ~[spring-security-oauth2-2.2.1.RELEASE.jar:na] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) ~[spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE] at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.springframework.cloud.sleuth.instrument.web.ExceptionLoggingFilter.doFilter(ExceptionLoggingFilter.java:48) ~[spring-cloud-sleuth-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at brave.servlet.TracingFilter.doFilter(TracingFilter.java:86) [brave-instrumentation-servlet-5.1.0.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:155) [spring-boot-actuator-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:123) [spring-boot-actuator-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108) [spring-boot-actuator-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:800) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1471) [tomcat-embed-core-8.5.32.jar:8.5.32] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.32.jar:8.5.32] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.32.jar:8.5.32] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131] Caused by: feign.RetryableException: connect: Address is invalid on local machine, or port is not valid on remote machine executing GET http://cloud-landmark/category/findOneAll at feign.FeignException.errorExecuting(FeignException.java:67) ~[feign-core-9.5.1.jar:na] at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:104) ~[feign-core-9.5.1.jar:na] at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:76) ~[feign-core-9.5.1.jar:na] at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:103) ~[feign-core-9.5.1.jar:na] at com.sun.proxy.$Proxy201.findOneAll(Unknown Source) ~[na:na] at com.cloud.agr.service.controller.LandmarkController.findOneAll(LandmarkController.java:944) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) ~[spring-webmvc-5.0.8.RELEASE.jar:5.0.8.RELEASE] ... 88 common frames omitted Caused by: java.net.ConnectException: connect: Address is invalid on local machine, or port is not valid on remote machine at java.net.DualStackPlainSocketImpl.connect0(Native Method) ~[na:1.8.0_131] at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:83) ~[na:1.8.0_131] at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_131] at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_131] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_131] at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_131] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_131] at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_131] at sun.net.NetworkClient.doConnect(NetworkClient.java:175) ~[na:1.8.0_131] at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) ~[na:1.8.0_131] at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) ~[na:1.8.0_131] at sun.net.www.http.HttpClient.<init>(HttpClient.java:242) ~[na:1.8.0_131] at sun.net.www.http.HttpClient.New(HttpClient.java:339) ~[na:1.8.0_131] at sun.net.www.http.HttpClient.New(HttpClient.java:357) ~[na:1.8.0_131] at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202) ~[na:1.8.0_131] at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138) ~[na:1.8.0_131] at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032) ~[na:1.8.0_131] at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966) ~[na:1.8.0_131] at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1546) ~[na:1.8.0_131] at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474) ~[na:1.8.0_131] at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480) ~[na:1.8.0_131] at feign.Client$Default.convertResponse(Client.java:152) ~[feign-core-9.5.1.jar:na] at feign.Client$Default.execute(Client.java:74) ~[feign-core-9.5.1.jar:na] at org.springframework.cloud.sleuth.instrument.web.client.feign.TracingFeignClient.execute(TracingFeignClient.java:91) ~[spring-cloud-sleuth-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.cloud.sleuth.instrument.web.client.feign.LazyTracingFeignClient.execute(LazyTracingFeignClient.java:55) ~[spring-cloud-sleuth-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.cloud.openfeign.ribbon.RetryableFeignLoadBalancer$1.doWithRetry(RetryableFeignLoadBalancer.java:103) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.cloud.openfeign.ribbon.RetryableFeignLoadBalancer$1.doWithRetry(RetryableFeignLoadBalancer.java:88) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:287) ~[spring-retry-1.2.2.RELEASE.jar:na] at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:180) ~[spring-retry-1.2.2.RELEASE.jar:na] at org.springframework.cloud.openfeign.ribbon.RetryableFeignLoadBalancer.execute(RetryableFeignLoadBalancer.java:88) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.cloud.openfeign.ribbon.RetryableFeignLoadBalancer.execute(RetryableFeignLoadBalancer.java:54) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at com.netflix.client.AbstractLoadBalancerAwareClient$1.call(AbstractLoadBalancerAwareClient.java:104) ~[ribbon-loadbalancer-2.2.5.jar:2.2.5] at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:303) ~[ribbon-loadbalancer-2.2.5.jar:2.2.5] at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:287) ~[ribbon-loadbalancer-2.2.5.jar:2.2.5] at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:231) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:228) ~[rxjava-1.3.8.jar:1.3.8] at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.drain(OnSubscribeConcatMap.java:286) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.onNext(OnSubscribeConcatMap.java:144) ~[rxjava-1.3.8.jar:1.3.8] at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:185) ~[ribbon-loadbalancer-2.2.5.jar:2.2.5] at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180) ~[ribbon-loadbalancer-2.2.5.jar:2.2.5] at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42) ~[rxjava-1.3.8.jar:1.3.8] at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber$1.call(OperatorRetryWithPredicate.java:127) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.enqueue(TrampolineScheduler.java:73) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.schedule(TrampolineScheduler.java:52) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:79) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:45) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276) ~[rxjava-1.3.8.jar:1.3.8] at rx.Subscriber.setProducer(Subscriber.java:209) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8] at rx.Observable.subscribe(Observable.java:10423) ~[rxjava-1.3.8.jar:1.3.8] at rx.Observable.subscribe(Observable.java:10390) ~[rxjava-1.3.8.jar:1.3.8] at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:443) ~[rxjava-1.3.8.jar:1.3.8] at rx.observables.BlockingObservable.single(BlockingObservable.java:340) ~[rxjava-1.3.8.jar:1.3.8] at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:112) ~[ribbon-loadbalancer-2.2.5.jar:2.2.5] at org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient.execute(LoadBalancerFeignClient.java:63) ~[spring-cloud-openfeign-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at org.springframework.cloud.sleuth.instrument.web.client.feign.TraceLoadBalancerFeignClient.execute(TraceLoadBalancerFeignClient.java:67) ~[spring-cloud-sleuth-core-2.0.0.RELEASE.jar:2.0.0.RELEASE] at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:97) ~[feign-core-9.5.1.jar:na] ... 105 common frames omitted ```
Java获取http请求返回json格式数据异常
java.net.SocketTimeoutException: connect timed out at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source) at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source) at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source) at java.net.AbstractPlainSocketImpl.connect(Unknown Source) at java.net.PlainSocketImpl.connect(Unknown Source) at java.net.SocksSocketImpl.connect(Unknown Source) at java.net.Socket.connect(Unknown Source) at sun.net.NetworkClient.doConnect(Unknown Source) at sun.net.www.http.HttpClient.openServer(Unknown Source) at sun.net.www.http.HttpClient.openServer(Unknown Source) at sun.net.www.http.HttpClient.<init>(Unknown Source) at sun.net.www.http.HttpClient.New(Unknown Source) at sun.net.www.http.HttpClient.New(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source) at com.elan.webservers.HttpRequestUtil.getHttp(HttpRequestUtil.java:64) at com.elan.webservers.HttpRequestUtil.main(HttpRequestUtil.java:19) 一直提示连接超时, 请问下有什么解决的方法么? // 开始连接请求 conn.connect(); //这行为异常提示行
webservice客户端调用
com.sun.xml.internal.ws.client.ClientTransportException: HTTP 传输错误: java.net.ConnectException: Connection timed out: connect at com.sun.xml.internal.ws.transport.http.client.HttpClientTransport.getOutput(HttpClientTransport.java:117) at com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.process(HttpTransportPipe.java:208) at com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.processRequest(HttpTransportPipe.java:130) at com.sun.xml.internal.ws.transport.DeferredTransportPipe.processRequest(DeferredTransportPipe.java:95) at com.sun.xml.internal.ws.api.pipe.Fiber.__doRun(Fiber.java:1121) at com.sun.xml.internal.ws.api.pipe.Fiber._doRun(Fiber.java:1035) at com.sun.xml.internal.ws.api.pipe.Fiber.doRun(Fiber.java:1004) at com.sun.xml.internal.ws.api.pipe.Fiber.runSync(Fiber.java:862) at com.sun.xml.internal.ws.client.Stub.process(Stub.java:448) at com.sun.xml.internal.ws.client.sei.SEIStub.doProcess(SEIStub.java:178) at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:93) at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:77) at com.sun.xml.internal.ws.client.sei.SEIStub.invoke(SEIStub.java:147) at com.sun.proxy.$Proxy30.getPwd(Unknown Source) at test.GetPasswd.getPassword(GetPasswd.java:44) at test.GetPasswd.main(GetPasswd.java:131) Caused by: java.net.ConnectException: Connection timed out: connect at java.net.DualStackPlainSocketImpl.connect0(Native Method) at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79) 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.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at java.net.Socket.connect(Socket.java:538) at sun.net.NetworkClient.doConnect(NetworkClient.java:180) at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) at sun.net.www.http.HttpClient.<init>(HttpClient.java:242) at sun.net.www.http.HttpClient.New(HttpClient.java:339) at sun.net.www.http.HttpClient.New(HttpClient.java:357) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1181) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1291) at com.sun.xml.internal.ws.transport.http.client.HttpClientTransport.getOutput(HttpClientTransport.java:104) ... 15 more
运行myeclipse时出现java.lang.NoClassDefFoundError的错误
我想获得网页的编码,在网上找了可以用chardet.jar中的方法实现,于是下载了它,导入我的工程中,然后用如下代码进行测试: import info.monitorenter.cpdetector.io.CodepageDetectorProxy; import info.monitorenter.cpdetector.io.HTMLCodepageDetector; import info.monitorenter.cpdetector.io.JChardetFacade; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; public class WebEncoding { private static CodepageDetectorProxy detector = CodepageDetectorProxy .getInstance(); static { detector.add(new HTMLCodepageDetector(false)); detector.add(JChardetFacade.getInstance()); } /** 测试用例 * @param args */ public static void main(String[] args) { WebEncoding web=new WebEncoding(); try { System.out.println("*******************"); System.out.println(web.getCharset("http://www.baidu.com/")); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * @param strurl * 页面url地址,需要以 http://开始,例:http://www.pujia.com * @return * @throws IOException */ public String getCharset(String strurl) throws IOException { // 定义URL对象 URL url = new URL(strurl); // 获取http连接对象 HttpURLConnection urlConnection = (HttpURLConnection) url .openConnection(); ; urlConnection.connect(); // 网页编码 String strencoding = null; /** * 首先根据header信息,判断页面编码 */ // map存放的是header信息(url页面的头信息) Map<String, List<String>> map = urlConnection.getHeaderFields(); Set<String> keys = map.keySet(); Iterator<String> iterator = keys.iterator(); // 遍历,查找字符编码 String key = null; String tmp = null; while (iterator.hasNext()) { key = iterator.next(); tmp = map.get(key).toString().toLowerCase(); // 获取content-type charset if (key != null && key.equals("Content-Type")) { int m = tmp.indexOf("charset="); if (m != -1) { strencoding = tmp.substring(m + 8).replace("]", ""); return strencoding; } } } /** * 通过解析meta得到网页编码 */ // 获取网页源码(英文字符和数字不会乱码,所以可以得到正确<meta/>区域) StringBuffer sb = new StringBuffer(); String line; try { BufferedReader in = new BufferedReader(new InputStreamReader(url .openStream())); while ((line = in.readLine()) != null) { sb.append(line); } in.close(); } catch (Exception e) { // Report any errors that arise System.err.println(e); System.err .println("Usage: java HttpClient <URL> [<filename>]"); } String htmlcode = sb.toString(); // 解析html源码,取出<meta />区域,并取出charset String strbegin = "<meta"; String strend = ">"; String strtmp; int begin = htmlcode.indexOf(strbegin); int end = -1; int inttmp; while (begin > -1) { end = htmlcode.substring(begin).indexOf(strend); if (begin > -1 && end > -1) { strtmp = htmlcode.substring(begin, begin + end).toLowerCase(); inttmp = strtmp.indexOf("charset"); if (inttmp > -1) { strencoding = strtmp.substring(inttmp + 7, end).replace( "=", "").replace("/", "").replace("\"", "") .replace("\'", "").replace(" ", ""); return strencoding; } } htmlcode = htmlcode.substring(begin); begin = htmlcode.indexOf(strbegin); } /** * 分析字节得到网页编码 */ strencoding = getFileEncoding(url); // 设置默认网页字符编码 if (strencoding == null) { strencoding = "GBK"; } return strencoding; } /** * *<br> * 方法说明:通过网页内容识别网页编码 * *<br> * 输入参数:strUrl 网页链接; timeout 超时设置 * *<br> * 返回类型:网页编码 */ public static String getFileEncoding(URL url) { java.nio.charset.Charset charset = null; try { charset = detector.detectCodepage(url); } catch (Exception e) { System.out.println(e.getClass() + "分析" + "编码失败"); } if (charset != null) return charset.name(); return null; } } 可运行时总是出现java.lang.NoClassDefFoundError: org/mozilla/intl/chardet/nsICharsetDetectionObserver的错误 !!!!
Java读取 中文都显示为乱码
package p8; import java.io.BufferedReader; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; public class Search { public static String getHtml(String urlString) { try { StringBuffer html = new StringBuffer(); URL url = new URL(urlString); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); InputStreamReader isr = new InputStreamReader(conn.getInputStream()); BufferedReader br = new BufferedReader(isr); ; String temp; while ((temp = br.readLine()) != null) { html.append(temp).append("\n"); } br.close(); isr.close(); return html.toString(); } catch (Exception e) { e.printStackTrace(); return null; } } public static void main(String[] args) { System.out.println(Search.getHtml("https://www.hao123.com/")); } } 最后的结果中中文都是乱码,怎么解决?
经常链接超时,最后没有足够缓存空间卡死了服务,求解
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