关于HttpClient的问题,如何使用HttpClient重定向?
 /*
 * HttpRequestProxy.java
 *
 * Created on November 3, 2008, 9:53 AM
 */


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.SimpleHttpConnectionManager;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;


public class HttpRequestProxy {
    // 超时间隔
    private static int connectTimeOut = 60000;
    // 让connectionmanager管理httpclientconnection时是否关闭连接
    private static boolean alwaysClose = false;
    // 返回数据编码格式
    private String encoding = "UTF-8";

    private final HttpClient client = new HttpClient();

    public HttpClient getHttpClient() {
        return client;
    }
    /**
     * 用法: HttpRequestProxy hrp = new HttpRequestProxy();
     * hrp.doRequest("http://www.163.com",null,null,"gbk");
     * 
     * @param url
     *            请求的资源URL
     * @param postData
     *            POST请求时form表单封装的数据 没有时传null
     * @param header
     *            request请求时附带的头信息(header) 没有时传null
     * @param encoding
     *            response返回的信息编码格式 没有时传null
     * @return response返回的文本数据
     * @throws CustomException
     */
    public String doRequest(String url, Map postData, Map header, String encoding) throws Exception {
        String responseString = null;
        // 头部请求信息
        Header[] headers = null;
        if (header != null) {
            Set entrySet = header.entrySet();
            int dataLength = entrySet.size();
            headers = new Header[dataLength];
            int i = 0;
            for (Iterator itor = entrySet.iterator(); itor.hasNext();) {
                Map.Entry entry = (Map.Entry) itor.next();
                headers[i++] = new Header(entry.getKey().toString(), entry.getValue().toString());
            }
        }

        // post方式
        if (postData != null) {
            PostMethod postRequest = new PostMethod(url.trim());
            if (headers != null) {
                for (int i = 0; i < headers.length; i++) {
                    postRequest.setRequestHeader(headers[i]);
                }
            }
            Set entrySet = postData.entrySet();
            int dataLength = entrySet.size();
            NameValuePair[] params = new NameValuePair[dataLength];
            int i = 0;
            for (Iterator itor = entrySet.iterator(); itor.hasNext();) {
                Map.Entry entry = (Map.Entry) itor.next();
                params[i++] = new NameValuePair(entry.getKey().toString(), entry.getValue().toString());
            }
            postRequest.setRequestBody(params);
            try {
                responseString = this.executeMethod(postRequest, encoding);
            } catch (Exception e) {
                throw e;
            } finally {
                postRequest.releaseConnection();
            }
        }
        return responseString;
    }

    private String executeMethod(HttpMethod request, String encoding) throws Exception {
        String responseContent = null;
        InputStream responseStream = null;
        BufferedReader rd = null;
        try {
            this.getHttpClient().executeMethod(request);
            if (encoding != null) {
                responseStream = request.getResponseBodyAsStream();
                rd = new BufferedReader(new InputStreamReader(responseStream, encoding));
                String tempLine = rd.readLine();
                StringBuffer tempStr = new StringBuffer();
                String crlf = System.getProperty("line.separator");
                while (tempLine != null) {
                    tempStr.append(tempLine);
                    tempStr.append(crlf);
                    tempLine = rd.readLine();
                }
                responseContent = tempStr.toString();
            } else
                responseContent = request.getResponseBodyAsString();

            Header locationHeader = request.getResponseHeader("location");
            // 返回代码为302,301时,表示页面己经重定向,则重新请求location的url,这在
            // 一些登录授权取cookie时很重要
            if (locationHeader != null) {
                String redirectUrl = locationHeader.getValue();
                this.doRequest(redirectUrl, null, null, null);
            }
        } catch (HttpException e) {
            throw new Exception(e.getMessage());
        } catch (IOException e) {
            throw new Exception(e.getMessage());

        } finally {
            if (rd != null)
                try {
                    rd.close();
                } catch (IOException e) {
                    throw new Exception(e.getMessage());
                }
            if (responseStream != null)
                try {
                    responseStream.close();
                } catch (IOException e) {
                    throw new Exception(e.getMessage());

                }
        }
        return responseContent;
    }

    /**
     * 特殊请求数据,这样的请求往往会出现redirect本身而出现递归死循环重定向 所以单独写成一个请求方法
     * 比如现在请求的url为:http://localhost:8080/demo/index.jsp 返回代码为302
     * 头部信息中location值为:http://localhost:8083/demo/index.jsp
     * 这时httpclient认为进入递归死循环重定向,抛出CircularRedirectException异常
     * 
     * @param url
     * @return
     * @throws CustomException
     */
    public String doSpecialRequest(String url, int count, String encoding) throws Exception {
        String str = null;
        InputStream responseStream = null;
        BufferedReader rd = null;
        GetMethod getRequest = new GetMethod(url);
        // 关闭httpclient自动重定向动能
        getRequest.setFollowRedirects(false);
        try {

            this.client.executeMethod(getRequest);
            Header header = getRequest.getResponseHeader("location");
            if (header != null) {
                // 请求重定向后的URL,count同时加1
                this.doSpecialRequest(header.getValue(), count + 1, encoding);
            }
            // 这里用count作为标志位,当count为0时才返回请求的URL文本,
            // 这样就可以忽略所有的递归重定向时返回文本流操作,提高性能
            if (count == 0) {
                getRequest = new GetMethod(url);
                getRequest.setFollowRedirects(false);
                this.client.executeMethod(getRequest);
                responseStream = getRequest.getResponseBodyAsStream();
                rd = new BufferedReader(new InputStreamReader(responseStream, encoding));
                String tempLine = rd.readLine();
                StringBuffer tempStr = new StringBuffer();
                String crlf = System.getProperty("line.separator");
                while (tempLine != null) {
                    tempStr.append(tempLine);
                    tempStr.append(crlf);
                    tempLine = rd.readLine();
                }
                str = tempStr.toString();
            }

        } catch (HttpException e) {
            throw new Exception(e.getMessage());
        } catch (IOException e) {
            throw new Exception(e.getMessage());
        } finally {
            getRequest.releaseConnection();
            if (rd != null)
                try {
                    rd.close();
                } catch (IOException e) {
                    throw new Exception(e.getMessage());
                }
            if (responseStream != null)
                try {
                    responseStream.close();
                } catch (IOException e) {
                    throw new Exception(e.getMessage());
                }
        }
        return str;
    }

    public static void main(String[] args) throws Exception {

        HttpRequestProxy hrp = new HttpRequestProxy();
        Map date = new HashMap();
        date.put("jyidApplet", "1");
        date.put("codeNumApplet", "1");
        date.put("jymxIdApplet", "447");
        date.put("patientIdApplet", "1118");
        String str = hrp.doRequest("http://127.0.0.1:8080/lis/mz/addTM",date, null, null);
        System.out.println(str);

    }

}

1个回答

HttpClient重定向
httpclient重定向
----------------------同志你好,我是CSDN问答机器人小N,奉组织之命为你提供参考答案,编程尚未成功,同志仍需努力!

executeMethod()方法中的Header locationHeader = request.getResponseHeader("location");
我把location填写成了我要重定向的地址 http://192.168.1.122:8080/lis/mz/Mzquerypaging.action,但是不好使,哪位大神用过这个东西

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<div class="post-text" itemprop="text"> <p>I have a webserver that issues the <code>ETag</code> header on responses and checks the <code>If-None-Match</code> header from the client, if present. The client in this case, is not a web browser but an extension of go's builtin <code>net/http</code> <code>http.Client</code> type.</p> <p>Here is my code </p> <pre><code>package util import "net/http" import "net/url" type HttpClient struct { http.Client etags map[url.URL]string } func (hc *HttpClient) Do(req *http.Request) (*http.Response, error) { const ETAG_SERVER_HEADER = "ETag" const ETAG_CLIENT_HEADER = "If-None-Match" //Do not attempt to use ETags on non-GET requests if req.Method != "GET" { return hc.Client.Do(req) } //Check for an existing etag etag, ok := hc.etags[*req.URL] if ok { //If an ETag is present, send it along if req.Header == nil { req.Header = http.Header{} } req.Header.Add(ETAG_CLIENT_HEADER, etag) } //Do the response response, err := hc.Client.Do(req) //If the response is ok if err == nil { if hc.etags == nil { hc.etags = make(map[url.URL]string) } //Check for an ETAG from the server, store it if present etag = response.Header.Get(ETAG_SERVER_HEADER) if len(etag) != 0 { hc.etags[*req.URL] = etag } } return response, err } </code></pre> <p>It is working without issue as of present.</p> <p>I am only storing and sending the ETag for <code>GET</code> requests. While it is valid to send them for other requests, it is not in my use case as of current so I'm not bothering with it. The ETags are stored by mapping the <code>url.URL</code> object to a string. </p> <p>My question is this. I request "<a href="http://foo.com/bar.html" rel="nofollow">http://foo.com/bar.html</a>". The server redirects me using <code>302 Found</code> and the <code>Location</code> header to "<a href="http://foo.com/qux.html" rel="nofollow">http://foo.com/qux.html</a>". I then request "<a href="http://foo.com/qux.html" rel="nofollow">http://foo.com/qux.html</a>" and get a <code>200 OK</code> along with an <code>ETag</code> header.</p> <p>With what URL do I associate the <code>ETag</code> header from the last response?</p> <p>Could the <code>302 Found</code> itself include an <code>ETag</code> header?</p> </div>

模拟登录正方教务系统重定向页面拿到的状态码为什么 总是200不是302

1. 请求代码 List<BasicNameValuePair> pairs = new ArrayList<BasicNameValuePair>(); pairs.add(new BasicNameValuePair("__VIEWSTATE", "dDwyODE2NTM0OTg7Oz5hS%2FqlazCCYK7Agp6rx5GFtdHxlg%3D%3D")); pairs.add(new BasicNameValuePair("txtUserName", username)); pairs.add(new BasicNameValuePair("TextBox2", pass)); pairs.add(new BasicNameValuePair("RadioButtonList1","%D1%A7%C9%FA"));//选择你是以什么身份进入%D1%A7%C9%FA pairs.add(new BasicNameValuePair("Button1", "")); pairs.add(new BasicNameValuePair("lbLanguage", "")); pairs.add(new BasicNameValuePair("hidPdrs", "")); pairs.add(new BasicNameValuePair("hidsc", "")); String info = ""; try { //该网址对应教务系统输入学号密码登入的那个界面 info = HttpUtil.postUrl("http://" + myUrl + "/default2.aspx", pairs, mHttpClient, ""); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } Log.i("tag", "info===="+info); 2. 执行代码 public static String postUrl(String url, List<BasicNameValuePair> pairs, DefaultHttpClient httpClient, String setHeader) throws ClientProtocolException, IOException { HttpPost request = new HttpPost(url); request.setHeader("Referer", setHeader); httpClient.getParams().setParameter( CoreConnectionPNames.CONNECTION_TIMEOUT, 10000); // 设置请求超时时间 httpClient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 10000); // 读取超时 HttpResponse response = httpClient.execute(request); /* * 根本没走这个if */ if(response.getStatusLine().getStatusCode() == 302||response.getStatusLine().getStatusCode() == 301){ //获取响应的cookie值 String cookie = response.getFirstHeader("Set-Cookie").getValue(); //获取头部信息中Location的值 String location = response.getFirstHeader("Location").getValue(); return location; }else if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { return EntityUtils.toString(response.getEntity()); } else { return null; } } 3. 抓包图片 ![图片说明](https://img-ask.csdn.net/upload/201605/02/1462194716_317220.png) 4. 有做过模拟登陆教务系统的大神看到这个问题能不能留个联系方式请教一下

python获取重定向的消息头的location??????????????

附件链接会发生跳转,想获取跳转后的下载链接,利用python爬取数据的。

zuul从本地重定向到服务器的服务时找不到服务

本地或者服务器,启动注册中心,用户服务,zuul服务之后可以正常重定向,但是 在服务器上启动注册中心和用户服务,本地启动zuul服务,不能重定向到服务器上 的用户服务 zuul配置 ``` eureka: client: serviceUrl: #defaultZone: http://localhost:1111/eureka/ defaultZone: http://*****:1111/eureka/ server: port: 8089 spring: application: name: zuul zuul: routes: user: /user/** ``` 错误信息 ``` 2019-10-16 15:34:39.969 WARN 5076 --- [nio-8089-exec-4] o.s.c.n.z.filters.post.SendErrorFilter : Error during filtering com.netflix.zuul.exception.ZuulException: Forwarding error at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.handleException(RibbonRoutingFilter.java:198) ~[spring-cloud-netflix-zuul-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.forward(RibbonRoutingFilter.java:173) ~[spring-cloud-netflix-zuul-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.run(RibbonRoutingFilter.java:119) ~[spring-cloud-netflix-zuul-2.1.3.RELEASE.jar:2.1.3.RELEASE] at com.netflix.zuul.ZuulFilter.runFilter(ZuulFilter.java:117) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.FilterProcessor.processZuulFilter(FilterProcessor.java:193) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.FilterProcessor.runFilters(FilterProcessor.java:157) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.FilterProcessor.route(FilterProcessor.java:118) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.ZuulRunner.route(ZuulRunner.java:96) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.http.ZuulServlet.route(ZuulServlet.java:116) ~[zuul-core-1.3.1.jar:1.3.1] at com.netflix.zuul.http.ZuulServlet.service(ZuulServlet.java:81) ~[zuul-core-1.3.1.jar:1.3.1] at org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:166) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.cloud.netflix.zuul.web.ZuulController.handleRequest(ZuulController.java:45) [spring-cloud-netflix-zuul-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:88) [spring-boot-actuator-2.1.9.RELEASE.jar:2.1.9.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:94) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:114) [spring-boot-actuator-2.1.9.RELEASE.jar:2.1.9.RELEASE] at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:104) [spring-boot-actuator-2.1.9.RELEASE.jar:2.1.9.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589) [tomcat-embed-core-9.0.26.jar:9.0.26] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.26.jar:9.0.26] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_66] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_66] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.26.jar:9.0.26] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_66] Caused by: com.netflix.client.ClientException: null at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:118) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0] at org.springframework.cloud.netflix.zuul.filters.route.support.AbstractRibbonCommand.run(AbstractRibbonCommand.java:221) ~[spring-cloud-netflix-zuul-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.cloud.netflix.zuul.filters.route.support.AbstractRibbonCommand.run(AbstractRibbonCommand.java:55) ~[spring-cloud-netflix-zuul-2.1.3.RELEASE.jar:2.1.3.RELEASE] at com.netflix.hystrix.HystrixCommand$2.call(HystrixCommand.java:302) ~[hystrix-core-1.5.18.jar:1.5.18] at com.netflix.hystrix.HystrixCommand$2.call(HystrixCommand.java:298) ~[hystrix-core-1.5.18.jar:1.5.18] at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:46) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[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.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[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.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[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.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.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.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[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.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[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.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.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.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[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.OnSubscribeMap.call(OnSubscribeMap.java:48) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeMap.call(OnSubscribeMap.java:33) ~[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.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.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.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30) ~[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.OnSubscribeDefer.call(OnSubscribeDefer.java:51) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35) ~[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.internal.operators.BlockingOperatorToFuture.toFuture(BlockingOperatorToFuture.java:51) ~[rxjava-1.3.8.jar:1.3.8] at rx.observables.BlockingObservable.toFuture(BlockingObservable.java:410) ~[rxjava-1.3.8.jar:1.3.8] at com.netflix.hystrix.HystrixCommand.queue(HystrixCommand.java:378) ~[hystrix-core-1.5.18.jar:1.5.18] at com.netflix.hystrix.HystrixCommand.execute(HystrixCommand.java:344) ~[hystrix-core-1.5.18.jar:1.5.18] at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.forward(RibbonRoutingFilter.java:167) ~[spring-cloud-netflix-zuul-2.1.3.RELEASE.jar:2.1.3.RELEASE] ... 64 common frames omitted Caused by: java.lang.RuntimeException: java.net.UnknownHostException: iZ8vbdc5bs4sgei69tax2yZ at rx.exceptions.Exceptions.propagate(Exceptions.java:57) ~[rxjava-1.3.8.jar:1.3.8] at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:463) ~[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-2.3.0.jar:2.3.0] ... 126 common frames omitted Caused by: java.net.UnknownHostException: iZ8vbdc5bs4sgei69tax2yZ at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_66] at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) ~[na:1.8.0_66] at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) ~[na:1.8.0_66] at java.net.InetAddress.getAllByName0(InetAddress.java:1276) ~[na:1.8.0_66] at java.net.InetAddress.getAllByName(InetAddress.java:1192) ~[na:1.8.0_66] at java.net.InetAddress.getAllByName(InetAddress.java:1126) ~[na:1.8.0_66] at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45) ~[httpclient-4.5.10.jar:4.5.10] at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:112) ~[httpclient-4.5.10.jar:4.5.10] at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:374) ~[httpclient-4.5.10.jar:4.5.10] at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) ~[httpclient-4.5.10.jar:4.5.10] at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.10.jar:4.5.10] at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.10.jar:4.5.10] at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.10.jar:4.5.10] at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.10.jar:4.5.10] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) ~[httpclient-4.5.10.jar:4.5.10] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108) ~[httpclient-4.5.10.jar:4.5.10] at org.springframework.cloud.netflix.ribbon.apache.RibbonLoadBalancingHttpClient.execute(RibbonLoadBalancingHttpClient.java:83) ~[spring-cloud-netflix-ribbon-2.1.3.RELEASE.jar:2.1.3.RELEASE] at org.springframework.cloud.netflix.ribbon.apache.RibbonLoadBalancingHttpClient.execute(RibbonLoadBalancingHttpClient.java:45) ~[spring-cloud-netflix-ribbon-2.1.3.RELEASE.jar:2.1.3.RELEASE] at com.netflix.client.AbstractLoadBalancerAwareClient$1.call(AbstractLoadBalancerAwareClient.java:104) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0] at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:303) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0] at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:287) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0] 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-2.3.0.jar:2.3.0] at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0] at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42) ~[rxjava-1.3.8.jar:1.3.8] at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8] at rx.internal.operators.OperatorRetryWithPredicate$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 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