Java网络通信基础编程(必看篇)
投稿：jingxian
下面小编就为大家带来一篇Java网络通信基础编程(必看篇)。小编觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随小编过来看看吧
方式一：同步阻塞方式（BIO）：
服务器端（Server）：
package com.ietree.basicskill.socket.mode1;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
/**
* 服务端
*/
public class Server {
// 端口号
final static int PORT = 8765;
public static void main(String[] args) {
ServerSocket server = null;
try {
server = new ServerSocket(PORT);
System.out.println("Server start......");
// 进行阻塞
Socket socket = server.accept();
// 创建一个程序执行客户端的任务
new Thread(new ServerHandler(socket)).start();
} catch (IOException e) {
e.printStackTrace();
} finally {
if(server != null){
try {
server.close();
} catch (IOException e) {
e.printStackTrace();
}
}
server = null;
}
}
}
采用多线程来处理接收到的请求（ServerHandler）：
package com.ietree.basicskill.socket.mode1;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
public class ServerHandler implements Runnable {
private Socket socket;
public ServerHandler(Socket socket) {
this.socket = socket;
}
@Override
public void run() {
BufferedReader in = null;
PrintWriter out = null;
try {
in = new BufferedReader(new InputStreamReader(this.socket.getInputStream()));
out = new PrintWriter(this.socket.getOutputStream(), true);
String body = null;
while (true) {
body = in.readLine();
if(body == null){
break;
}
System.out.println("Server: " + body);
out.println("服务器端回送响应的数据。");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if(in != null){
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if(out != null){
try {
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
if(socket != null){
try {
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
socket = null;
}
}
}
客户端（Client）:
package com.ietree.basicskill.socket.mode1;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
/**
* 客户端
*/
public class Client {
final static String ADDRESS = "127.0.0.1";
final static int PORT = 8765;
public static void main(String[] args) {
Socket socket = null;
BufferedReader in = null;
PrintWriter out = null;
try {
socket = new Socket(ADDRESS, PORT);
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
out = new PrintWriter(socket.getOutputStream(), true);
// 向服务器端发送数据
out.println("接收到客户端的请求数据......");
String response = in.readLine();
System.out.println("Client: " + response);
} catch (Exception e) {
e.printStackTrace();
} finally {
if(in != null){
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if(out != null){
try {
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
if(socket != null){
try {
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
socket = null;
}
}
}
程序输出：
Server：
Server start...... Server: 接收到客户端的请求数据......
Client：
Client: 服务器端回送响应的数据。
同步非阻塞（NIO）
异步非阻塞（AIO）
以上这篇Java网络通信基础编程(必看篇)就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。