9e9e2f3e
 zhaowg
空闲车位数更新优化
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import org.apache.commons.lang.StringUtils;
import java.io.*;
import java.net.Socket;
import java.util.Scanner;
public class Test {
private static Socket socket;
private DataInputStream reader ;
private static PrintStream writer;
private static Scanner scanner = new Scanner(System.in);
public static void main(String[] args) throws IOException {
new Test().startTheSocket();
}
//开始连接服务端
private void startTheSocket() throws IOException{
toConnectTheServer();//创建Socket并初始化
openTheThreadToReceiveInfoFromServer();//开启一个新的线程来接受服务端发来的信息
//一个循环，用于读取键盘的输入
int i = 0;
while(true) {
i++;
// 建立连接后获得输出流
byte temp[] = new byte[64];
temp[0] = 0x20;temp[1] = (byte) 0x80;temp[2] = 0x04;temp[3] = 0x1a;temp[4] = 0x00;temp[5] = 0x01;
temp[6] = 0x00;temp[7] = 0x00;temp[8] = 0x00;temp[9] = 0x17;temp[10] = 0x0d;temp[11] = 0x5a;
temp[12] = (byte) 0x15;temp[13] = (byte) 0x00;temp[14] = 0x4a;temp[15] = 0x00;temp[16] = 0x00;temp[17] = 0x00;
temp[18] = 0x00;temp[19] = 0x01;temp[20] = 0x01;temp[21] = 0x00;temp[22] = 0x00;temp[23] = 0x00;
temp[24] = 0x01;temp[25] = 0x00;temp[26] = 0x07;temp[27] = (byte) 0xf0;temp[28] = 0x2a;temp[29] = 0x04;
temp[30] = 0x01;temp[31] = 0x07;temp[32] = 0x00;temp[33] = 0x00;temp[34] = (byte) 0x69;temp[35] = (byte) 0x2b;
System.out.println("开始向服务端发送第"+i+"次。。。");
String yourMessage = scanner.nextLine();
//不为空则发送信息
if(yourMessage!=null) {
if(i%3==0){
System.out.println("发送非正常的");
writer.write(new byte[4]);
}else if(i%3==1){
System.out.println("发送非正常的11");
byte tt[] = new byte[4];
tt[0] = 0x22;
writer.write(tt);
}else{
System.out.println("发送正常的");
writer.write(temp);
}
//writer.flush();//记得flush清空缓冲区
}
//判断是否退出
if (yourMessage.equals("exit")) {
disConnect();
System.exit(0);
}
}
}
//创建一个Socket来连接本机的18080端口的服务端并初始化reader和writer
private void toConnectTheServer() throws IOException {
socket=new Socket("127.0.0.1",7890);
//socket=new Socket("47.96.41.38",17890);
reader = new DataInputStream(socket.getInputStream());
writer = new PrintStream((socket.getOutputStream()),true);
}
private void openTheThreadToReceiveInfoFromServer() throws IOException {
new Thread(new Runnable() {
@Override
public void run() {
try {
printMessage();//打印从服务端收到的信息
} catch (IOException e) {
e.printStackTrace();
}
}
}).start();
}
//循环不断读取服务端的信息
private void printMessage() throws IOException {
while (true) {
byte[] bytes = new byte[1024];
int len;
while ((len = reader.read(bytes)) != -1) {
//注意指定编码格式，发送方和接收方一定要统一，建议使用UTF-8
String sb = new String(bytes, 0, len,"UTF-8");
if(!StringUtils.isBlank(sb.toString())){
System.out.println("get message from server: " + sb);
}
}
}
}
//关闭各种
private void disConnect() throws IOException {
socket.close();
reader.close();
writer.close();
}
}
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