我正在研究studens项目,它需要读取通过USB从AtMega发送的数据(使用虚拟串行端口)。要访问串口,我使用的是NeuronRobotics的nrjavaserial(https://github.com/NeuronRobotics/nrjavaserial),这是RXTX的一个分支。为了管理我的依赖,我使用了maven。下面是我得到的,当我运行CommPortIdentifier.getPortIdentifiers();
(或任何静态CommPortIdentifier
功能):java.lang.UnsatisfiedLinkError:在调试期间只能找到依赖库
java.lang.UnsatisfiedLinkError: C:\Users\Grześ\AppData\Local\Temp\libNRJavaSerial_Grze?_0\libNRJavaSerial.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1938)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1821)
at java.lang.Runtime.load0(Runtime.java:809)
at java.lang.System.load(System.java:1086)
at gnu.io.NativeResource.loadResource(NativeResource.java:142)
at gnu.io.NativeResource.inJarLoad(NativeResource.java:40)
at gnu.io.NativeResource.loadLib(NativeResource.java:60)
at gnu.io.NativeResource.load(NativeResource.java:28)
at gnu.io.SerialManager.<init>(SerialManager.java:10)
at gnu.io.SerialManager.getInstance(SerialManager.java:16)
at gnu.io.RXTXCommDriver.<clinit>(RXTXCommDriver.java:87)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:109)
at pl.edu.pwr.aerospace.enginebench.serial.SerialCommunicator.getAvaliablePorts(SerialCommunicator.java:34)
at pl.edu.pwr.aerospace.enginebench.cli.Main.connectCommunicator(Main.java:35)
at pl.edu.pwr.aerospace.enginebench.cli.Main.main(Main.java:21)
java.lang.UnsatisfiedLinkError: C:\Users\Grześ\AppData\Local\Temp\libNRJavaSerial_Grze?_0\libNRJavaSerial.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1938)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1821)
at java.lang.Runtime.load0(Runtime.java:809)
at java.lang.System.load(System.java:1086)
at gnu.io.NativeResource.loadResource(NativeResource.java:142)
at gnu.io.NativeResource.inJarLoad(NativeResource.java:40)
at gnu.io.NativeResource.loadLib(NativeResource.java:60)
at gnu.io.NativeResource.load(NativeResource.java:28)
at gnu.io.SerialManager.<init>(SerialManager.java:10)
at gnu.io.SerialManager.getInstance(SerialManager.java:16)
at gnu.io.RXTXCommDriver.<clinit>(RXTXCommDriver.java:87)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:109)
at pl.edu.pwr.aerospace.enginebench.serial.SerialCommunicator.getAvaliablePorts(SerialCommunicator.java:34)
at pl.edu.pwr.aerospace.enginebench.cli.Main.connectCommunicator(Main.java:35)
at pl.edu.pwr.aerospace.enginebench.cli.Main.main(Main.java:21)
java.lang.ExceptionInInitializerError thrown while loading gnu.io.RXTXCommDriver
java.lang.NoClassDefFoundError: Could not initialize class gnu.io.RXTXCommDriver thrown while loading gnu.io.RXTXCommDriver
这里是我的依赖关系:
<dependencies>
<dependency>
<groupId>com.neuronrobotics</groupId>
<artifactId>nrjavaserial</artifactId>
<version>3.12.1</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
Strangly,这只是在调试过程中发生的,当我运行程序通常它的工作原理像魅力。任何想法为什么?
我发现人们与其他库有类似的问题,但所有这些解决方案是移动DLL或更新类路径,但正如我使用的Maven我怀疑在这种情况下,解决方案将有所不同。