java 发送http消息 带参数 HttpURLConnection
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2024-02-08 18:10:04
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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";
}
}
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