http数据包格式及Java模拟http客户端发请求

http数据包格式及Java模拟http客户端发请求

• 不管什么请求请求头后面都要有两个\n换行
• get请求的请求头Content-Length不为0时，请求数据包和POST差不多
• post请求注意请求头Content-Length为body的长度
• java socket发送和接收必须时不同的线程
• 如果想单方面关闭输入输出流，使用socket对象关闭，因为单独关闭输入流或输出流都会造成socker关闭，如单方面关闭输出流用socket.shutdownOutput();
• 如果想继续请求需要自行处理http响应结束，如果按字节读取结束标志为\r\n0\r\n\r\n，使用BufferedReader的readLine时，判断连续两行是否按顺序分别为0和""，是则结束

http数据包格式

模拟get响应

[2024-05-30 14:48:51.170]# RECV ASCII FROM  :58790>
GET /a HTTP/1.1
Host: 192.168.10.153:8080
Connection: keep-alive
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
cache-control: max-age=0
accept-language: zh-CN,zh;q=0.9
upgrade-insecure-requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
Referer: http://192.168.10.153:8080/a
Accept-Encoding: gzip, deflate

[2024-05-30 14:48:52.996]# SEND ASCII TO ALL>
HTTP/1.1 200
Content-Type: application/json
Content-Length: 111
Date: Thu, 22 Dec 2022 01:50:15 GMT
Keep-Alive: timeout=60
Connection: keep-alive

{"senid":"c3135f2edcec457c966a515688fff3e3","nonce":"587056045","timestamp":"1671623839","appkey":"SD63236305"}

模拟get请求

[2022-12-22 09:50:15.918]# SEND ASCII>
GET /my/t1?senid=c3135f2edcec457c966a515688fff3e3&nonce=587056045&timestamp=1671623839&appkey=SD63236305 HTTP/1.1
X-Nuonuo-Sign: tqpRd6s11B8msPGRN0FTMU3KJlY=
method: nuonuo.OpeMplatform.requestBillingNew
sdkVer: 1.0.5.2
userTax: 339902999999789113
accessToken: 
Content-Length: 0
Host: 192.168.10.153:8080
Connection: Keep-Alive
User-Agent: Apache-HttpClient/4.5.5 (Java/1.8.0_321)
Accept-Encoding: gzip,deflate



[2022-12-22 10:09:22.779]# RECV ASCII>
HTTP/1.1 200 
Content-Type: application/json
Transfer-Encoding: chunked
Date: Thu, 22 Dec 2022 02:09:22 GMT
Keep-Alive: timeout=60
Connection: keep-alive

6f
{"senid":"c3135f2edcec457c966a515688fff3e3","nonce":"587056045","timestamp":"1671623839","appkey":"SD63236305"}
0

模拟post请求

[2022-12-22 09:50:15.918]# SEND ASCII>
POST /my/t2?senid=c3135f2edcec457c966a515688fff3e3&nonce=587056045&timestamp=1671623839&appkey=SD63236305 HTTP/1.1
X-Nuonuo-Sign: tqpRd6s11B8msPGRN0FTMU3KJlY=
method: nuonuo.OpeMplatform.requestBillingNew
sdkVer: 1.0.5.2
userTax: 339902999999789113
accessToken: 
Content-Type: application/json
Content-Length: 16
Host: 192.168.10.153:8080
Connection: Keep-Alive
User-Agent: Apache-HttpClient/4.5.5 (Java/1.8.0_321)
Accept-Encoding: gzip,deflate

{"order":"name"}


[2022-12-22 09:50:15.931]# RECV ASCII>
HTTP/1.1 200 
Content-Type: application/json
Transfer-Encoding: chunked
Date: Thu, 22 Dec 2022 01:50:15 GMT
Keep-Alive: timeout=60
Connection: keep-alive

6f
{"senid":"c3135f2edcec457c966a515688fff3e3","nonce":"587056045","timestamp":"1671623839","appkey":"SD63236305"}
0

源码

package me.muphy.web;

import java.io.*;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.nio.charset.StandardCharsets;

public class MyTest {
    public static void main(String[] args) {
        Socket socket = new Socket();
        String send = "POST /my/t2?senid=c3135f2edcec457c966a515688fff3e3&nonce=587056045&timestamp=1671623839&appkey=SD63236305 HTTP/1.1\n" +
                "X-Nuonuo-Sign: tqpRd6s11B8msPGRN0FTMU3KJlY=\n" +
                "method: nuonuo.OpeMplatform.requestBillingNew\n" +
                "sdkVer: 1.0.5.2\n" +
                "userTax: 339902999999789113\n" +
                "accessToken: \n" +
                "Content-Type: application/json\n" +
                "Content-Length: 16\n" +
                "Host: 192.168.10.153:8080\n" +
                "Connection: Keep-Alive\n" +
                "User-Agent: Apache-HttpClient/4.5.5 (Java/1.8.0_321)\n" +
                "Accept-Encoding: gzip,deflate\n" +
                "\n" +
                "{\"order\":\"name\"}";
        try {
            socket.connect(new InetSocketAddress(8080));
            OutputStream outputStream = socket.getOutputStream();
            InputStream inputStream = socket.getInputStream();
            // 读取线程
            new Thread(() -> {
                BufferedReader reader = null;
                try {
                    reader = new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
                    StringBuilder sb = new StringBuilder();
                    boolean end = false;
                    String line;
                    while ((line = reader.readLine()) != null) {
                        if ("0".equals(line)) {
                            end = true;
                        } else if (line.isEmpty() && end) {
                            break;
                        } else {
                            end = false;
                        }
                        sb.append("\n");
                        sb.append(line);
                    }
                    if (sb.length() > 0) {
                        sb.delete(0, 1);
                        System.out.println("接收数据：");
                        System.out.println(sb);
                        System.out.println();
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                } finally {
                    if (reader != null) {
                        try {
                            reader.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    if (inputStream != null) {
                        try {
                            inputStream.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    if (outputStream != null) {
                        try {
                            outputStream.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    try {
                        socket.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }).start();

            // 发送数据
            System.out.println("发送数据：");
            System.out.println(send);
            System.out.println();
            try {
                outputStream.write(send.getBytes(StandardCharsets.UTF_8));
                outputStream.flush();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                try {
                    socket.shutdownOutput();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}