openfeign里面配置httpclient出错。

因为现在需要使用get方式传递对象参数,所以尝试在openfeign里面配置httpclient。
配置代码如下:
在yml文件里面增加了配置信息

feign:
  httpclient:
    enabled: true

在pom.xml文件中引入的依赖:

       <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.3</version>
        </dependency>
        <!-- 使用Apache HttpClient替换Feign原生httpclient -->
        <dependency>
            <groupId>com.netflix.feign</groupId>
            <artifactId>feign-httpclient</artifactId>
            <version>8.16.1</version>
        </dependency>

配置好以后尝试使用get方式传递对象参数。
服务提供端代码:

 @GetMapping(value = "testAddRole1",consumes = "application/json")
    public JsonResult addTest1(@RequestBody Role role){
        roleService.addRole(role);
        return JsonResult.getInstant(ReturnCodeEnum.SUCCESS);
    }

服务调用接口为:

@GetMapping(value = "/testAddRole1",consumes = "application/json")
    JsonResult testAddRole1(@RequestBody Role role);

现在在尝试调用接口后发现服务提供方可以接受到参数并且能够写到数据库中,但是在服务调用方拿不到正确的返回值并且会报错,错误如下:

Caused by: java.lang.NoSuchMethodError: feign.Response.create(ILjava/lang/String;Ljava/util/Map;Lfeign/Response$Body;)Lfeign/Response;

查看源码得知,openfeign在接受返回值时调用的不是httpclient的feign-core包的代码而是调用的本身的feign-core的代码,而本身的feign-core包中的Response类没有create方法。
得知原因后我将httpclient的依赖在pom文件中的位置上移,使openfeign优先调用httpclient的feign-core包的代码,结果在启动项目时就报错,报错信息为:

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'test1Controller' defined in file [D:\workspace\basic\openfeign\target\classes\cn\cloudscope\openfeignTest\Test1\controller\Test1Controller.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cn.cloudscope.openfeignTest.Test1.service.Test1Service': FactoryBean threw exception on object creation; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'feignRetryer' defined in org.springframework.cloud.openfeign.FeignClientsConfiguration: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [feign.Retryer]: Factory method 'feignRetryer' threw exception; nested exception is java.lang.NoSuchFieldError: NEVER_RETRY

查看原因得知是两个feign-core包中的Retryer接口不一致导致的,求来个大神帮忙解决一下,或者怎么调整jar包的版本去解决这个问题。openfeign的feign-core版本为10.1.0 httpclient的版本为8.16.1

1个回答

我也遇到了这个问题,把你的feign-httpclient依赖换成这个

<dependency>
    <groupId>io.github.openfeign</groupId>
    <artifactId>feign-httpclient</artifactId>
    <version>10.1.0</version>
</dependency>
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org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration$$EnhancerBySpringCGLIB$$ea0a2add.getEurekaClient(<generated>) ~[spring-cloud-netflix-eureka-client-2.1.4.RELEASE.jar:2.1.4.RELEASE] at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.maybeInitializeClient(EurekaServiceRegistry.java:57) ~[spring-cloud-netflix-eureka-client-2.1.4.RELEASE.jar:2.1.4.RELEASE] at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.register(EurekaServiceRegistry.java:38) ~[spring-cloud-netflix-eureka-client-2.1.4.RELEASE.jar:2.1.4.RELEASE] at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration.start(EurekaAutoServiceRegistration.java:83) ~[spring-cloud-netflix-eureka-client-2.1.4.RELEASE.jar:2.1.4.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182) ~[spring-context-5.1.11.RELEASE.jar:5.1.11.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53) ~[spring-context-5.1.11.RELEASE.jar:5.1.11.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360) ~[spring-context-5.1.11.RELEASE.jar:5.1.11.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158) ~[spring-context-5.1.11.RELEASE.jar:5.1.11.RELEASE] at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122) ~[spring-context-5.1.11.RELEASE.jar:5.1.11.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:893) ~[spring-context-5.1.11.RELEASE.jar:5.1.11.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:162) ~[spring-boot-2.1.10.RELEASE.jar:2.1.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552) ~[spring-context-5.1.11.RELEASE.jar:5.1.11.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.1.10.RELEASE.jar:2.1.10.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) ~[spring-boot-2.1.10.RELEASE.jar:2.1.10.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) ~[spring-boot-2.1.10.RELEASE.jar:2.1.10.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) ~[spring-boot-2.1.10.RELEASE.jar:2.1.10.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.1.10.RELEASE.jar:2.1.10.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) ~[spring-boot-2.1.10.RELEASE.jar:2.1.10.RELEASE] at com.myfeign.MyFeignConsumer_8888.main(MyFeignConsumer_8888.java:14) ~[classes/:na] Caused by: java.net.ConnectException: Connection refused: connect at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[na:1.8.0_181] at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[na:1.8.0_181] at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_181] at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_181] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_181] at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_181] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_181] at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_181] at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:117) ~[httpclient-4.5.1.jar:4.5.1] at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:177) ~[httpclient-4.5.1.jar:4.5.1] at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144) ~[httpclient-4.5.1.jar:4.5.1] at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:131) ~[httpclient-4.5.1.jar:4.5.1] at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:611) ~[httpclient-4.5.1.jar:4.5.1] at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:446) ~[httpclient-4.5.1.jar:4.5.1] at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:882) ~[httpclient-4.5.1.jar:4.5.1] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:117) ~[httpclient-4.5.1.jar:4.5.1] at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55) ~[httpclient-4.5.1.jar:4.5.1] at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:173) ~[jersey-apache-client4-1.19.1.jar:1.19.1] ... 79 common frames omitted ```
日志是INFO级别 httpclient 控制台还是打印很多信息。怎么关闭
[14/01/03 09:42:53:942][org.apache.commons.httpclient.HttpClient-<clinit>] Java version: 1.6.0_37 [14/01/03 09:42:53:973][org.apache.commons.httpclient.HttpClient-<clinit>] Java vendor: Sun Microsystems Inc. [14/01/03 09:42:53:973][org.apache.commons.httpclient.HttpClient-<clinit>] Java class path: XMLSignatureFactory; [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "3" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "3" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "[\r]" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "[\n]" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "{"infocode":"000000","infotext":"","result":"true"}" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "[\r]" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "[\n]" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "0" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "[\r]" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "[\n]" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "[\r]" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "[\n]" [14/01/03 09:42:54:286][org.apache.commons.httpclient.Wire-wire] << "[\r][\n]" 怎么设置可以不让他打印这些
java中的httpclient的SSL出错
我直接下载最新版的httpclient,直接复制的示例中的代码,只是把网址换成我自己想要的网址.并且,在我电脑中,在办公室服务器里测试都通过,但上传上机房服务器里面就出错了. java代码 [code="java"] public void login() { try { //初始化 httpclient DefaultHttpClient httpclient = new DefaultHttpClient(); //设置证书 httpclient.getConnectionManager().getSchemeRegistry().register(sch); String url = "login.jsp"; HttpPost httpost = new HttpPost(url); print("准备登陆网站,网址:"+url); List <NameValuePair> nvps = new ArrayList <NameValuePair>(); nvps.add(new BasicNameValuePair("actionName", "login")); nvps.add(new BasicNameValuePair("login_password", "11")); nvps.add(new BasicNameValuePair("login_user", "111")); httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8)); HttpResponse response = httpclient.execute(httpost); String statusLine = response.getStatusLine().toString(); print("得到网页打开状态"+statusLine); if(statusLine.equals("HTTP/1.1 200 OK")) { } } } /* * 设置SSL证书 */ public void setSSL() { try { KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType()); String p = System.getProperty("user.dir")+"/my.key"; print(p); FileInputStream instream = new FileInputStream(new File(p)); try { trustStore.load(instream, "123456".toCharArray()); }catch(Exception e) { e.printStackTrace(); } finally { instream.close(); } SSLSocketFactory socketFactory = new SSLSocketFactory(trustStore); sch = new Scheme("https", socketFactory, 443); } catch(Exception e) { e.printStackTrace(); } } [/code] 程序出错提示 [code="java"] javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated at sun.security.ssl.SSLSessionImpl.getPeerCertificates(SSLSessionImpl.java:371) at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:128) at org.apache.http.conn.ssl.SSLSocketFactory.createSocket(SSLSocketFactory.java:399) at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:143) at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:149) at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:108) at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:415) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:641) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:576) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:554) at login(login.java:89) [/code]
麻烦大神帮忙看下 java.net.SocketException: Connection reset 不是经常出现间歇性出现
错误代码 java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:210) at java.net.SocketInputStream.read(SocketInputStream.java:141) at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) at java.io.BufferedInputStream.read(BufferedInputStream.java:265) at org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:78) at org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:106) at org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1116) at org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1973) at org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1735) at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1098) at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398) at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171) at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397) at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323) at com.example.madame.service.JokeService.jokeGet(JokeService.java:86) at com.example.madame.controller.OneSentencePerDayController.test35(OneSentencePerDayController.java:105) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908) at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) 我的代码 public String joke() { try { // String urlTypeName = java.net.URLEncoder.encode(city1, "utf-8"); URL url = new URL("xxx"); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(5000); conn.setRequestMethod("GET"); if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) { //结果码=200 InputStream is = conn.getInputStream(); //内存流 , ByteArrayOutputStream boas = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int len = -1; while (is.available() != 0&&(len = is.read(buffer)) != -1) { boas.write(buffer, 0, len); } System.out.println("GET请求获取的数据:" + boas.toString()); JSONObject jsonObject = JSONObject.fromObject(boas.toString()); String reason = String.valueOf(jsonObject.get("reason")); if ("success".equals(reason)) { Object result = jsonObject.get("result"); JSONArray jsonArray = JSONArray.fromObject(result.toString()); int count = 0; String joke = ""; if (jsonArray.size() > 0) { for (int i = 0; i < jsonArray.size(); i++) { String content = String.valueOf(JSONObject.fromObject(jsonArray.get(i)).get("content")); count += 1; joke += " <tr align=\"center\" style=\"text-indent:2em;\">\n" + " <td >" + count + "." + content + "</td>\n" + " </tr>"; if (count == 3) { break; } } boas.close(); is.close(); return joke; } } } } catch (IOException e) { e.printStackTrace(); } return null; }
java HttpClient 请求乱码
java HttpClient 4.3.6的jar包 为什么我get post 请求中文乱码 还有怎么请求的时候怎么带参数,我这样写有什么问题没有,现在的情况就是乱码 public static void get() { try { CloseableHttpClient httpClient = HttpClients.createDefault(); HttpGet httpget = new HttpGet("http://api.a.7xz.com/v140/ceshi"); httpget.addHeader(new BasicHeader("npi", "3")); // httpget.addHeader("", ""); CloseableHttpResponse httpReponse = httpClient.execute(httpget); try { System.out.println(httpReponse.getStatusLine()); HttpEntity entity = httpReponse.getEntity(); System.out.println(EntityUtils.toString(entity)); } finally { httpReponse.close(); } } catch (Exception e) { e.printStackTrace(); } } public static void post() { try { CloseableHttpClient httpClient = HttpClients.createDefault(); HttpPost httpPost = new HttpPost("http://api.a.7xz.com/v140/ceshi"); List<BasicNameValuePair> Listnvps = new ArrayList(); Listnvps.add(new BasicNameValuePair("npi", "3")); httpPost.setEntity(new UrlEncodedFormEntity(Listnvps, "UTF-8")); CloseableHttpResponse httppHttpResponse2 = httpClient .execute(httpPost); try { System.out.println(httppHttpResponse2.getStatusLine()); System.out.println(EntityUtils.toString(httppHttpResponse2 .getEntity())); } finally { httppHttpResponse2.close(); } httpClient.close(); } catch (Exception e) { e.printStackTrace(); } }
fiddler 怎么监听HttpClient发送的请求
我用HttpClient模拟浏览器发送请求,但是fiddler 好像监听不到 HttpClient 发送的请求 我用的是eclipse 有人说 用fiddler 上的那个十字标点中eclipse就行,但是我点了 也 没用,我监听全局 fiddler也监听不了 HttpClient的请求
httpclient 模拟登录邮箱
httpclient 模拟登录邮箱 登录邮箱 private static String USERNAME = "111111"; private static String PASSWORD = "222222"; private static String LOGINURL = "https://mail.qq.com"; public static void main(String[] args) { HttpClient httpClient = new HttpClient(); PostMethod authpost = new PostMethod(LOGINURL); NameValuePair user = new NameValuePair("user",USERNAME); NameValuePair pwd = new NameValuePair("password",PASSWORD); NameValuePair username = new NameValuePair("username",USERNAME + "@qq.com"); authpost.setRequestBody(new NameValuePair[]{user,pwd,username}); int status = httpClient.executeMethod(authpost); System.out.println(authpost.getResponseBodyAsString()); System.out.println(status); 为什么登录不上去,是因为没有设置登录页面参数吗?
使用HttpClient访问网络
使用HttpClient访问网络 清单文件 <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="19" /> 出错 用 <uses-sdk android:minSdkVersion="9" /> 就没错。请问是什么问题
httpclient 动态网页获取
public static String getHtmlByUrl(String url){ String html = null; HttpClient httpClient = new DefaultHttpClient();//创建httpClient对象 HttpGet httpget = new HttpGet(url);//以get方式请求该URL try { HttpResponse responce = httpClient.execute(httpget);//得到responce对象 int resStatu = responce.getStatusLine().getStatusCode();//返回码 if (resStatu==HttpStatus.SC_OK) {//200正常 其他就不对 //获得相应实体 HttpEntity entity = responce.getEntity(); System.out.println(Integer.toString(resStatu)); if (entity!=null) { html = EntityUtils.toString(entity);//获得html源代码 } } } catch (Exception e) { System.out.println("访问【"+url+"】出现异常!"); e.printStackTrace(); } finally { httpClient.getConnectionManager().shutdown(); } //System.out.println(html); return html; } 上述代码只能抓静态网页数据 麻烦看下上面代码怎么改才能获取动态网页数据啊
java.net.ConnectException: Connection refused: connect
昨天遇到了这个错,到现在没解决,求大佬帮助 1.服务器安装了一个8082的项目,网页访问服务器ip:8082没有任何问题 2.本地装了个node,启动了一个前端项目 localhost:3000,后端接口配的就是http://服务器ip:8082 然后本地掉服务器接口就一直报 java.net.ConnectException: Connection refused: connect, 3.前端是通过jsonp掉的接口 之前都是好的,请问怎么解决啊 spring boot 项目 服务器windows的,防火墙是关闭的,端口也没占用 错误信息 ``` java.net.ConnectException: Connection refused: connect at java.net.DualStackPlainSocketImpl.connect0(Native Method) at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345) 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: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:1167) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1103) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:997) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:931) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1281) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1256) at com.sunline.utils.HttpUtil.httpRequest(HttpUtil.java:62) at com.sunline.utils.HttpUtil.httpRequest(HttpUtil.java:30) at com.sunline.web.controller.XlrLoginController.oauthLogin(XlrLoginController.java:134) at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:158) at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:126) at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:111) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:209) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) at 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