最近这两天帮忙调试接口，用到了httpclient ，自己参照网上方法编写个小例子 ，方便以后查看

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/*** 远程访问调用方法工具类* * @author yangy* */
public class RemoteRequestUtils
{public static void main(String[] args) throws HttpException, IOException{getRequest(null);}/*** 远程get请求 方法直接打印返回结果* * @param url* @param parmete* @throws IOException* @throws HttpException* @throws Exception*/public static void getRequest(String url) throws HttpException, IOException{// 创建请求对象HttpClient client = new HttpClient();client.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,"utf-8");//设置超时时间client.getParams().setSoTimeout(2000);// 创建远程访问GetMethod method = new GetMethod(url);// 设置成了默认的恢复策略，在发生异常时候将自动重试3次，在这里你也可以设置成自定义的恢复策略method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,new DefaultHttpMethodRetryHandler());// 执行getMethodint statusCode = client.executeMethod(method);if (statusCode != HttpStatus.SC_OK){System.err.println("Method failed: " + method.getStatusLine());}//获取数据String responseBody = readInputStream(method.getResponseBodyAsStream());System.out.println(" Remoter request success :" + responseBody);// 释放连接method.releaseConnection();}/*** 远程post请求 方法直接打印返回结果* * @param url* @param parmete* @throws IOException* @throws HttpException*/public static void postRequest(String url, NameValuePair[] data)throws HttpException, IOException{// 创建请求对象HttpClient httpClient = new HttpClient();// 设置超时时间httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(20000);// 创建POST对象UTF8PostMethod postMethod = new UTF8PostMethod(url);// 设置成了默认的恢复策略，在发生异常时候将自动重试3次，在这里你也可以设置成自定义的恢复策略postMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,new DefaultHttpMethodRetryHandler());// 将表单的值放入postMethod中postMethod.setRequestBody(data);// 执行postMethodint statusCode = httpClient.executeMethod(postMethod);// HttpClient对于要求接受后继服务的请求，象POST和PUT等不能自动处理转发System.out.println(statusCode);String location = "";// 返回返回结果if (statusCode == HttpStatus.SC_MOVED_PERMANENTLY|| statusCode == HttpStatus.SC_MOVED_TEMPORARILY){// 从头中取出转向的地址Header locationHeader = postMethod.getResponseHeader("location");if (locationHeader != null){location = locationHeader.getValue();System.out.println("The page was redirected to:" + location);} else{System.err.println("Location field value is null.");}} else if (statusCode == HttpStatus.SC_OK) // 返回为连接成功{// 此处修改为返回为输入流 避免大数量时出错 消耗内存String responseBody = readInputStream(postMethod.getResponseBodyAsStream());System.out.println(" Remoter request success :" + responseBody);}// 释放连接postMethod.releaseConnection();}/*** 转换Inputstram为字符串* * @param responseBody* @return * @throws IOException*/private static String readInputStream(InputStream responseBody)throws IOException{//创建字符串数读取缓存BufferedReader buffre = new BufferedReader(new InputStreamReader(responseBody,"utf-8")); //使用utf-8 避免出现乱码//创建缓存字符串StringBuffer resBuffer = new StringBuffer(10000);String resTemp = "";while ((resTemp = buffre.readLine()) != null){resBuffer.append(resTemp).append("\n"); //读取字符流中数据 目前测试可能存在换行添加}return resBuffer.toString();}}

目前代码能够执行成功, 蛋痛的是 调用对方接口 每次一调用他们的系统就挂掉...