HttpClient调用例子

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1. 服务端代码(基于springMVC框架)

@RequestMapping(value="getHttpPersonInfo")public void getHttpPersonInfo(String id, HttpServletResponse response){System.out.println("getHttpPersonInfo方法被调用了");System.out.println(id);response.setContentType("text/html;charset=utf-8");JSONObject json = new JSONObject();json.put("id", id);json.put("name", "人员姓名001");json.put("age", 28);try {response.getWriter().write(json.toString());response.flushBuffer();} catch (IOException e) {e.printStackTrace();}}

2. 调用代码

public static void main(String[] args) {HttpClient client = new HttpClient();PostMethod post = new PostMethod("http://localhost:8080/SpringMVC/PersonController/getHttpPersonInfo.do");post.addParameter(new NameValuePair("id", "中文ID"));// 解决中文乱码问题client.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,"utf-8");try {int resultCode = client.executeMethod(post);System.out.println("返回结果代码：" + resultCode);Reader reader = new InputStreamReader(post.getResponseBodyAsStream());BufferedReader br = new BufferedReader(reader);StringBuffer sb = new StringBuffer();String resultStr = "";while((resultStr = (br.readLine())) != null){sb.append(resultStr);}System.out.println("最后结果："+sb.toString());JSONObject json = JSONObject.fromObject(sb.toString());System.out.println("姓名：" + json.getString("name"));} catch (HttpException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}

3.需要借助的包文件

commons-httpclient.jar

可能需要的包：json-lib-2.2.3-jdk13.jar、ezmorph-1.0.5.jar

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