socket-client-http-post

目标：通过socket 模拟HTTP协议连接 tomcat，做一次POST请求

请求数据：

POST /index.jsp HTTP/1.1
Host:192.168.237.230
Content-Type:application/x-www-form-urlencoded
Connection: close
Content-Length:42

username=xinchun.wang&password=123456.....

响应数据：

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=613C816BEC2DB87DB7A043574B68AA57; Path=/
Content-Type: text/html;charset=ISO-8859-1
Content-Length: 293
Date: Tue, 25 Apr 2017 02:58:49 GMT
Connection: close


<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
 xinchun.wang
  123456.....
</body>
</html>

代码参考：

public class ClientPost {

	public static void main(String[] args) {
		sendRequest(8078);
	}

	public static void sendRequest(int port) {
		try {
			Socket socket = new Socket("192.168.237.230", port);

			OutputStream out = socket.getOutputStream();

			// 由Socket对象得到输入流,并构造相应的BufferedReader对象
			BufferedReader in = new BufferedReader(new InputStreamReader(
					socket.getInputStream()));

			String body = "username=xinchun.wang&password=123456.....";
			
			StringBuilder sb = new StringBuilder();
			sb.append("POST /index.jsp HTTP/1.1\r\n");
			sb.append("Host:192.168.237.230\r\n");
			sb.append("Content-Type:application/x-www-form-urlencoded\r\n");
			sb.append("Connection: close\r\n");
			sb.append("Content-Length:"+body.length()+"\r\n");
			sb.append("\r\n");

			sb.append(body);
			out.write(sb.toString().getBytes());

			out.flush();
			String line = in.readLine();
			while (line != null && line.toString() != "") {
				System.out.println(line);
				line = in.readLine();
			}

			out.close(); // 关闭Socket输出流
			in.close(); // 关闭Socket输入流
			socket.close(); // 关闭Socket

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

socket-client-http-post

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