java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path thrown while loading gnu.io.RXTXCommDriver
Exception in thread "main" java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path
	at java.lang.ClassLoader.loadLibrary(Unknown Source)
	at java.lang.Runtime.loadLibrary0(Unknown Source)
	at java.lang.System.loadLibrary(Unknown Source)
	at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:123)
	at com.swing.util.SerialReader.open(SerialReader.java:82)
	at com.swing.view.Test.openSerialPort(Test.java:58)
	at com.swing.view.Test.<init>(Test.java:17)
	at com.swing.view.Login.getIcCard(Login.java:115)
	at com.swing.view.Login.<init>(Login.java:50)
	at com.swing.view.Login.main(Login.java:43)

1、错误原因

缺少rxtxParallel.dll和rxtxSerial.dll文件

2、解决方法

把rxtxParallel.dll、rxtxSerial.dll拷贝到：C:\WINDOWS\system32下。

rxtxParallel.dll  放在%java_home%\jre\lib\ext下
rxtxSerial.dll    放在%java_home%\jre\bin下

3、下载链接：

链接: https://pan.baidu.com/s/15P64qdz2fgBUhL2ZHB4L9Q 提取码: jx2m