ServerSocket模拟服务器与HttpClient相互通讯的实例

ServerSocket模拟服务器端

public class ServerSocketModel{
	public static void main(String[] args) throws Exception {
		ServerSocket serverSocket = new ServerSocket(9999);
        System.out.println("服务器已启动...............");
        while (true) {
            Socket socket = serverSocket.accept();
            System.out.println("客户端已连接IP地址为：" + socket.getInetAddress());

            InputStream inputStream = socket.getInputStream();
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
            String readContent;
            while ((readContent = bufferedReader.readLine()) != null) {
                System.out.println("ReadFromClient: " + readContent);
                if (readContent.length() == 0)
                    break;
            }

            //封装输出流
            OutputStream outputStream = socket.getOutputStream();

            BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream));

            //封装输入流
            System.out.println("读取完毕，准备输出返回信息.");
            bufferedWriter.write("HTTP/1.1 200 OK\n");
            bufferedWriter.write("Content-Length: 10\n");
            bufferedWriter.write("Content-Type: text/html;charset=utf8\n");
            bufferedWriter.write("\n"); // 区分HEAD区和正文区
            bufferedWriter.write("1234567890");
            System.out.println("返回信息输出完毕.");
            bufferedWriter.flush();
            socket.close();
            System.out.println("客户端连接已释放.");

	}
	}
}

httpclient模拟浏览器调用server端

public class HttpClientModel {
public static void main(String[] args) {
		 HttpClient httpClient = new DefaultHttpClient();
		 HttpGet httpGet = new HttpGet("http://127.0.0.1:9999");
		 
		 httpGet.addHeader("Accept","text/html, application/xhtml+xml, */*");
		 httpGet.addHeader("Accept-Language","zh-CN,en-US;q=0.5");
		 httpGet.addHeader("User-Agent","Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)");
		 httpGet.addHeader("Accept-Encoding","gzip, deflate");
		 httpGet.addHeader("Host","localhost:9999");
		 httpGet.addHeader("Connection","Keep-Alive");
	
		 HttpResponse httpResponse = httpClient.execute(httpGet);
		 InputStream inputStream = httpResponse.getEntity().getContent();
		 System.err.println("从服务器端获取的内容为：" + EntityUtils.toString(httpResponse.getEntity()));
	}
}