//HttpClent客户端代码

package jvm;

import java.io.IOException;
import java.net.URISyntaxException;

import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.ParseException;
import org.apache.hc.core5.http.io.entity.EntityUtils;

public class HttpClientDemoTest01 {


    public static void main(String args[]){

        // 创建一个HttpClient
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        try {
            //创建HttpGet
            HttpGet httpGet = new HttpGet("http://localhost:8801/");
            System.out.println("execute request:"+httpGet.getUri());
            //执行get请求
            response = httpClient.execute(httpGet);
            //获取响应实体
            HttpEntity entity = response.getEntity();
            //打印响应状态
            if(entity!=null){
                System.out.println(entity.getContentLength());
                System.out.println(EntityUtils.toString(entity));
            }
        } catch (URISyntaxException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            try {
                response.close();
                httpClient.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }

}

//ServerSocket服务端代码

package jvm;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class HttpServer01 {
    public static void main(String args[]) throws IOException{
        ServerSocket serverSocket = new ServerSocket(8801);
        while(true){
            Socket socket = serverSocket.accept();
            service(socket);
        }
    }

    private static void service(Socket socket) {
        try {
            PrintWriter printWriter = new PrintWriter(socket.getOutputStream(),true);
            printWriter.println("HTTP/1.1 200 OK");
            printWriter.println("Content-Type:text/html;charset=utf-8");
            String body = "Hello nio1";
            printWriter.println("Conttent-Length:"+body.getBytes().length);
            printWriter.println();
            printWriter.write(body);
            printWriter.close();
            socket.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}