java socket模拟http请求

最新推荐文章于 2023-07-15 11:56:14 发布

原创最新推荐文章于 2023-07-15 11:56:14 发布 · 1.1k 阅读

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该博客展示了如何使用Java的Socket编程模拟HTTP请求，包括GET和POST方法。通过创建Socket连接到指定服务器，构造请求头并发送数据，然后读取响应，实现了基本的HTTP客户端功能。

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package httpclientlearn;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.URLEncoder;

public class TestDemo {
private int port;
private String host;
private Socket socket;
private BufferedReader bufferedReader;
private BufferedWriter bufferedWriter;
public TestDemo(String host, int port) throws Exception, Exception {
socket = new Socket();
SocketAddress localAddr = new InetSocketAddress("192.168.204.20",9000);
socket.bind(localAddr);
this.host = host;
this.port = port;
}

public void sendGet() throws IOException
{
String path = "/mssos";
SocketAddress dest = new InetSocketAddress(this.host, this.port);
socket.getLocalSocketAddress();

socket.connect(dest);
OutputStreamWriter streamWriter = new OutputStreamWriter(socket.getOutputStream());
bufferedWriter = new BufferedWriter(streamWriter);

bufferedWriter.write("GET " + path + " HTTP/1.1\r\n");
bufferedWriter.write("Host: " + this.host + "\r\n");
bufferedWriter.write("\r\n");
bufferedWriter.flush();

BufferedInputStream streamReader = new BufferedInputStream(socket.getInputStream());
bufferedReader = new BufferedReader(new InputStreamReader(streamReader, "utf-8"));
String line = null;
while((line = bufferedReader.readLine())!= null)
{
System.out.println(line);
}
bufferedReader.close();
bufferedWriter.close();
socket.close();
}

public void sendPost() throws IOException
{
String path = "/zhigang/postDemo.php";
String data = URLEncoder.encode("name", "utf-8") + "=" + URLEncoder.encode("gloomyfish", "utf-8") + "&" +
URLEncoder.encode("age", "utf-8") + "=" + URLEncoder.encode("32", "utf-8");
// String data = "name=zhigang_jia";
SocketAddress dest = new InetSocketAddress(this.host, this.port);
socket.connect(dest);
OutputStreamWriter streamWriter = new OutputStreamWriter(socket.getOutputStream(), "utf-8");
bufferedWriter = new BufferedWriter(streamWriter);

bufferedWriter.write("POST " + path + " HTTP/1.1\r\n");
bufferedWriter.write("Host: " + this.host + "\r\n");
bufferedWriter.write("Content-Length: " + data.length() + "\r\n");
bufferedWriter.write("Content-Type: application/x-www-form-urlencoded\r\n");
bufferedWriter.write("\r\n");
bufferedWriter.write(data);
bufferedWriter.flush();
bufferedWriter.write("\r\n");
bufferedWriter.flush();

BufferedInputStream streamReader = new BufferedInputStream(socket.getInputStream());
bufferedReader = new BufferedReader(new InputStreamReader(streamReader, "utf-8"));
String line = null;
while((line = bufferedReader.readLine())!= null)
{
System.out.println(line);
}
bufferedReader.close();
bufferedWriter.close();
socket.close();
}

public static void main(String[] args) throws Exception
{
TestDemo td = new TestDemo("192.168.161.162",8080);
try {
td.sendGet(); //send HTTP GET Request

//td.sendPost(); // send HTTP POST Request
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}