代码
public static void main(String[] args) throws IOException { String result = ""; BufferedReader in = null; try { String urlNameString = URLNAME + "?param1=123¶m2=abc"; URL realUrl = new URL(urlNameString); // 打开和URL之间的连接 HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection(); // 设置通用的请求属性 connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); // 建立实际的连接 connection.connect(); connection.setRequestMethod("POST"); // 获取所有响应头字段 Map<String, List<String>> map = connection.getHeaderFields(); // 遍历所有的响应头字段 for (String key : map.keySet()) { System.out.println(key + "--->" + map.get(key)); } // 定义 BufferedReader输入流来读取URL的响应 in = new BufferedReader(new InputStreamReader( connection.getInputStream())); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { System.out.println("发送GET请求出现异常!" + e); e.printStackTrace(); } // 使用finally块来关闭输入流 finally { try { if (in != null) { in.close(); } } catch (Exception e2) { e2.printStackTrace(); } } System.out.println("result:" + result); }
接收方接收参数
package com.zj.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller @RequestMapping("user") public class UserController { @RequestMapping("add") public String userAdd(HttpServletRequest request,HttpServletResponse response) { String param1 = request.getParameter("param1"); String param2 = request.getParameter("param2"); System.out.println("param1:" + param1); System.out.println("param2:" + param2); System.out.println("User Add, well done"); return "/index.jsp"; } }