public static String postGeneralUrl(String generalUrl, String contentType, String params, String encoding) throws Exception {
BufferedReader in = null;
DataOutputStream out;
Date d1 = new Date();
StringBuilder result = new StringBuilder();
try {
URL url = new URL(generalUrl);
// 打开和URL之间的连接
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
// 设置通用的请求属性
connection.setRequestProperty("Content-Type", contentType);
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setUseCaches(false);
connection.setDoOutput(true);
connection.setDoInput(true);
//链接超时
connection.setConnectTimeout(10000);//单位：毫秒
connection.setReadTimeout(60000);//单位：毫秒
int connectTimeout = connection.getConnectTimeout();
System.err.println("超时时间为：" + connectTimeout);
// 得到请求的输出流对象
out = new DataOutputStream(connection.getOutputStream());
out.write(params.getBytes(encoding));
out.flush();
out.close();
// 建立实际的连接
connection.connect();
// 获取所有响应头字段
Map> headers = connection.getHeaderFields();
//遍历所有的响应头字段
for (String key : headers.keySet()) {
System.err.println(key + "--->" + headers.get(key));
}
if (connection.getResponseCode() == 200) {
// 定义 BufferedReader输入流来读取URL的响应
in = new BufferedReader( new InputStreamReader(connection.getInputStream(), encoding) );
String getLine;
while ((getLine = in.readLine()) != null) {
result.append(getLine);
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (null != in) {
try {
in.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
Date d2 = new Date();
System.out.println("发送请求到响应结束的时间为：" + (d2.getTime() - d1.getTime()));
// System.err.println("result:" + result);
return result.toString();
}
java.io.IOException: Error writing to server
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1889)
at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1884)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1883)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1456)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)
at com.bookdao.oasis.util.HttpUtil.postGeneralUrl(HttpUtil.java:83)
at com.bookdao.oasis.util.HttpUtil.post(HttpUtil.java:42)
at com.bookdao.oasis.util.HttpUtil.post(HttpUtil.java:36)
at com.bookdao.oasis.util.HttpUtil.post(HttpUtil.java:27)
at com.bookdao.oasis.ocr.controller.OcrAPICommonController.testcharacterRecognitionFile(OcrAPICommonController.java:126)
at com.bookdao.oasis.ocr.controller.OcrAPICommonController$$FastClassBySpringCGLIB$$f847a9d0.invoke()
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:97)
at com.bookdao.oasis.common.message.EventMessageProducter.newReleaseResource(EventMessageProducter.java:88)
at com.bookdao.oasis.common.message.EventMessageProducter.releaseResource(EventMessageProducter.java:67)
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:497)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:618)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:97)
at com.bookdao.oasis.common.listener.PrivilegeListener.releaseResource(PrivilegeListener.java:45)
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:497)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:618)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
at com.bookdao.oasis.ocr.controller.OcrAPICommonController$$EnhancerBySpringCGLIB$$a3f828ce.testcharacterRecognitionFile()
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:497)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.bookdao.oasis.common.listener.LogFilter.doFilter(LogFilter.java:84)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:115)
at org.springframework.boot.web.support.ErrorPageFilter.access$000(ErrorPageFilter.java:59)
at org.springframework.boot.web.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:90)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1521)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1478)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Error writing to server
at sun.net.www.protocol.http.HttpURLConnection.writeRequests(HttpURLConnection.java:665)
at sun.net.www.protocol.http.HttpURLConnection.writeRequests(HttpURLConnection.java:677)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1533)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440)
at sun.net.www.protocol.http.HttpURLConnection.getHeaderFields(HttpURLConnection.java:2965)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getHeaderFields(HttpsURLConnectionImpl.java:283)
at com.bookdao.oasis.util.HttpUtil.postGeneralUrl(HttpUtil.java:76)
... 97 more
http://wenxue.iqiyi.com/book/search-%E9%87%8D%E5%BA%86%E5%8D%97%E5%B7%9D%E5%93%AA%E9%87%8C%E8%83%BD%E7%8E%A9%E5%BA%84%E5%92%8C%E9%97%B2%E7%BD%91%E5%9D%80B2024%C2%B7CN%E5%8E%A6%E9%97%A8%E5%8D%AB%E8%AE%A1%E5%A7%94%EF%BD%8C-1.html http://bbs.zol.com.cn/index.php?c=search&a=do&kword=%E7%BC%85%E7%94%B8%E6%9E%9C%E6%95%A2%E9%93%B6%E9%92%BB%E6%97%A0%E4%BA%86%E7%BD%91%E5%AE%98%E6%96%B9%E7%BD%91%E5%9D%80B2024%C2%B7CN%E9%83%B4%E5%B7%9E%E6%AF%95%E4%B8%9A%E7%94%9F%EF%BC%9F%EF%BC%92%EF%BC%B7 http://m.v.baidu.com/search?word=%E5%B0%8F%E5%8B%90%E6%8B%89%E6%B8%AF%E9%83%BD%E8%B4%B5%E5%AE%BE%E4%BC%9A%E7%BD%91%E5%9D%80%E3%80%90%E5%AE%98%E7%BD%91%E2%86%92B2024.CN%E3%80%91%E9%9A%8F%E5%B7%9E%E4%BA%BA%E5%8A%9B%E8%B5%84%E6%BA%90%EF%BC%81%EF%BC%A5 https://www.douguo.com/search/user/%E7%9A%87%E5%AE%B6%E5%9B%BD%E9%99%85%E5%9C%A8%E7%BA%BF%E7%82%B9%E5%87%BB%E5%8F%B0%E5%AE%98%E6%96%B9%E7%BD%91%E7%AB%99%E6%B8%B8%E6%88%8F%E7%BD%91%E5%9D%80B2024%C2%B7CN%E6%AD%A6%E5%A8%81%E5%AD%A6%E5%BA%9C%EF%BC%97%EF%BD%8A%EF%BC%A9 https://search.bilibili.com/all?keyword=%E7%94%98%E8%82%83%E6%AD%A6%E5%A8%81%E9%BE%99%E8%99%8E%E5%B9%B3%E5%8F%B0%E6%8E%A8%E8%8D%90TL262%C2%B7C%EF%BC%AFM%E9%9D%92%E5%B2%9B%E9%98%B2%E7%96%AB%EF%BC%8F
您可以提交工单，会有专门的技术同学解答。