Access the RS-232 serial port in Java program

Recently, due to project requirements, you have to use the PC end compiled in JavaProgramTo be able to communicate with the terminal and obtain the parameter configuration of the terminal.

Now the debugging is successful. The simple process is as follows:

1. Download commapi in windows. Oracle does not maintain commapi in windows, so you need to download it elsewhere.

2. Copy comm. jar and javax. Comm. properties to % java_home %/lib and JRE/lib respectively.

3. Add comm. jar to the value of the classpath environment variable.

4. Copy win32com. DLL to system32

5. Restart

 

Compile serialdemo:

Modify line 462nd of serialdemo. Java to baudchoice. additem ("115200 ");

Javac *. Java

 

Run serialdemo:

Java serialdemo

 

Environment:

Windows XP

JDK version 1.6.0 _ 24

USB to serial Cable

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