socket 发送http请求

Posted 2021-05-15 Java璐到底

发送端：
import java.io.*;
import java.net.Socket;
import java.net.UnknownHostException;

public class MySocketHttp {

    public static void main(String[ ] args) throws UnknownHostException, IOException

    {
        String host = "127.0.0.1";

        int port = 8008;

        Socket socket = new Socket(host, port);

        BufferedWriter out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));

        BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));

        StringBuffer sb = new StringBuffer();

        //请求的连接地址

        sb.append("POST /hello HTTP/1.1\\r\\n")

                .append("Host:"+ host + "\\r\\n")

                .append("Content-Type:application/x-www-form-urlencoded\\r\\n")

                .append("Content-Length:11\\r\\n")//11 这个数值是看底下内容的长度的 即多少个字符

                .append("\\r\\n")

                .append("id=01234567\\r\\n"); //内容

//       System.out.println(sb);

        out.write(sb.toString());

        out.flush();

//打印响应

        String line = "";

        while((line = in.readLine()) != null) {

            System.out.println(line);
        }
        out.close();
        socket.close();
    }


}

接收端：

@RestController
public class FilerController {
    @PostMapping("hello")
    public String Hello(HttpServletRequest request, HttpServletResponse response){
        try {
            //接收请求参数
            InputStreamReader reader=new InputStreamReader(request.getInputStream());
            BufferedReader buffer=new BufferedReader(reader);
            String data=buffer.readLine();
            System.out.println("传入参数："+data);

            //头部信息
            //String header=request.getHeader("headerdata");
            //System.out.println(header);
            //向客户端发送数据
           /* response.setContentType("text/javascript");
            Student stu=new Student("liss","44");
            Gson json=new Gson();
            String jString=json.toJson(stu);
            PrintWriter out=response.getWriter();
            out.write(jString);*/
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "hello word";
    }
}