#

luxiaotao1123

2022-02-18 12474e42179051720a23d7c921fd33ce50e9ffab

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
package com.zy.core.thread;
 
import com.core.common.Cools;
import com.zy.core.Slave;
import com.zy.core.ThreadHandler;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
 
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketTimeoutException;
 
/**
 * 条码扫描仪线程
 * Created by vincent on 2020/8/4
 */
@Data
@Slf4j
public class BarcodeThread implements Runnable, ThreadHandler {
 
    private Slave slave;
    private String barcode;
    private Socket socket;
    private DataOutputStream dataOutputStream;
    private DataInputStream dataInputStream;
 
    public BarcodeThread(Slave slave) {
        this.slave = slave;
    }
 
    @Override
    @SuppressWarnings("InfiniteLoopStatement")
    public void run() {
        connect();
        while (true) {
            try {
                byte[] read = read(8, 100);
                if (null != read) {
                    String s = new String(read);
                    if (!Cools.isEmpty(s)) {
                        barcode = new String(read);
                        log.info("{}号条码器，检索数据：{}", slave.getId(), this.barcode);
                    }
                }
                Thread.sleep(100);
            } catch (SocketTimeoutException ignore) {
            } catch (Exception e) {
//                e.printStackTrace();
            }
        }
    }
 
    @Override
    public boolean connect() {
        try {
            close();  //1.主动释放连接 //2.某些服务器对指定ip有链路数限制
            socket = new Socket();
            //socket.setKeepAlive(true);
            SocketAddress socketAddress = new InetSocketAddress(slave.getIp(), slave.getPort());
            socket.connect(socketAddress, 1000); //某些服务器ping延迟高时要增加,否则会报错connect timeout
            dataOutputStream = new DataOutputStream(socket.getOutputStream());
            dataInputStream = new DataInputStream(socket.getInputStream());
//            log.info("条码扫描仪连接成功 ===>> [id:{}] [ip:{}] [port:{}]", slave.getId(), slave.getIp(), slave.getPort());
        } catch (Exception e) {
            socket = null;
            log.error("条码扫描仪连接失败！！！ ===>> [id:{}] [ip:{}] [port:{}]", slave.getId(), slave.getIp(), slave.getPort());
            return false;
        }
        return true;
    }
 
    @Override
    public void close() {
        try {
            if (null != dataOutputStream) {
                dataOutputStream.close();
            }
            if (null != dataInputStream) {
                dataInputStream.close();
            }
//        if (null != socket && !socket.isClosed()) {
//            socket.close();
//        }
            if (null != socket){
                socket.close();
            }
            socket = null;
        } catch (IOException e) {
            log.error("SocketClient close Exception:" + e.getMessage());
        }
    }
 
    public void write(byte[] msg, int len) throws IOException {
        if (null != dataInputStream)
        {
            dataOutputStream.write(msg, 0, len);
            dataOutputStream.flush();
        }
    }
 
    public byte[] read(int bufferSize, int timeOut) throws IOException {
//        if (socket == null) {
//           connect();
//        }
        connect();
        socket.setSoTimeout(timeOut);
        byte[] bytes = new byte[bufferSize];
        int len = dataInputStream.read(bytes);
        byte[] tempBytes = null;
        if (len > 0) {
            tempBytes = new byte[len];
            System.arraycopy(bytes, 0, tempBytes, 0, len);
        }
        return tempBytes;
    }
 
    public boolean valid() throws Exception {
        if (null == socket || socket.isClosed() || socket.isInputShutdown() || socket.isOutputShutdown()) {
            if (dataInputStream != null) {
                dataInputStream.close();
            }
            if (dataOutputStream != null) {
                dataOutputStream.close();
            }
            if (socket != null) {
                socket.close();
            }
            return false;
        }
        return true;
    }
 
}