JAVA语言开发WebSocket客户端

网上大多都是一些websocket作为服务器的代码,有的作为客户端导的jar不同也导致不能用,所以亲身经历为大家献上最简单的websocket客户端Demo

1.编写WebSocket客户端实例

注意:此方式需要进入tomcat根目录导进来一个 java-websocket.1.3.7.jar包哦!

package main;

import java.net.URI;

import org.apache.log4j.Logger;
import org.java_websocket.WebSocket.READYSTATE;
import org.java_websocket.client.WebSocketClient;
import org.java_websocket.drafts.Draft_6455;
import org.java_websocket.handshake.ServerHandshake;
import common.constant.SystemConstant;
import logic.zhuoyue.receive.ReceiveInterval;
import logic.zhuoyue.send.thread.SendHeartThread;
import logic.zhuoyue.send.thread.SendInThread;
import logic.zhuoyue.send.thread.SendMonthCardThread;
import logic.zhuoyue.send.thread.SendOutThread;
/**
* 建立连接...
* 发送数据
* @author apple
*/
public class Client {
private final static Logger logger = Logger.getLogger(Client.class);

public static WebSocketClient client;

public static void createConnect() throws Exception{

//SystemConstant.WS_URL : wsURL地址

client = new WebSocketClient(new URI(SystemConstant.WS_URL), new Draft_6455()) {

@Override
public void onOpen(ServerHandshake arg0) {
logger.debug("开始建立链接...");
}

@Override
public void onMessage(String arg0) {
logger.debug("检测到服务器请求...");
//这个方法自动接收服务器发过来的信息,直接在此处调用自己写的方法即可.
}

@Override
public void onError(Exception arg0) {
arg0.printStackTrace();
logger.debug("客户端发生错误,即将关闭!");
}

@Override
public void onClose(int arg0, String arg1, boolean arg2) {
logger.debug("客户端已关闭!");
logger.debug("开始尝试重新连接...");
try {
Client.createConnect();
} catch (Exception e) {
e.printStackTrace();
logger.debug("重新连接失败,请检查网络!");
}
//重启客户端后创建4个定时任务线程
new SendHeartThread().start();
new SendInThread().start();
new SendOutThread().start();
new SendMonthCardThread().start();
}
};

client.connect();
//判断连接状态,
while (client.getReadyState().equals(READYSTATE.OPEN)) {
logger.debug("成功建立链接!");
}
}

public static void send(String message) {
client.send(message);
}

}