语言:java
虚拟串口工具:Virtual Serial Port Driver Pro 9.0,选择pairing模块下,点击add virtual paring按钮即可创建串口对,还无法自定义out和in。
串口助手:xcom2.6,在串口选择框中选择刚创建好的虚拟串口,使用默认设置,点击打开串口,输入框中输入数据,点击发送数据即可发送数据。如果接收端没有接收到数据(稍微等等),则重新选择串口,互换输入输出端。
相关组件:jSerialComm==2.9.3
1.导入maven依赖:
<dependency>
<groupId>com.fazecast</groupId>
<artifactId>jSerialComm</artifactId>
<version>[2.0.0,3.0.0)</version>
</dependency>
2.也可以直接导入jar包:把jSerialComm-2.9.3存入java项目的lib目录中,在IDEA下,选中jar包然后点击右键,选择add ad library,即可在代码中引用。
具体代码实现:
public void read(String portDescriptor) {
//portDescriptor= e.g., "/dev/ttyS0" or "COM3"
SerialPort[] serialPorts = SerialPort.getCommPorts();
//serialPorts[0]是接收端
SerialPort com3 = serialPorts[0];
com3.setParity(SerialPort.EVEN_PARITY);
com3.setFlowControl(SerialPort.FLOW_CONTROL_DISABLED);
boolean isOpened = com3.openPort();
if (isOpened) {
//基于事件监听
try {
Thread.sleep(1000);
SerialPort finalCom = com3;
//监听器监听串口数据变化
com3.addDataListener(new SerialPortDataListener() {
@Override
public int getListeningEvents() {
return SerialPort.LISTENING_EVENT_DATA_AVAILABLE;
}
@Override
public void serialEvent(SerialPortEvent serialPortEvent) {
if (serialPortEvent.getEventType() != SerialPort.LISTENING_EVENT_DATA_AVAILABLE) {
return;
}
while (finalCom.bytesAvailable() != 0) {
byte[] data = new byte[com3.bytesAvailable()];
int numRead = finalCom.readBytes(data, data.length);
System.out.println("the length of data: "+ numRead);
System.out.println(new String(data));
try {
Thread.sleep(2000);
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
}