java串口错误，no rxtxSerial in java.library.path

07-Aug-2018 10:51:16.369 FINE [localhost-startStop-1] org.apache.jasper.servlet.TldScanner$TldScannerCallback.scan No TLD files were found in [file:/D:/java/tomcat/apache-tomcat-8.0.1/apache-tomcat-8.0.1/webapps/monitor/WEB-INF/lib/jackson-datatype-jdk8-2.9.5.jar]. Consider adding the JAR to the tomcat.util.scan.DefaultJarScanner.jarsToSkip property in CATALINA_BASE/conf/catalina.properties file.
07-Aug-2018 10:51:27.406 SEVERE [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: 
 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/monitor]]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:697)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:976)
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1762)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path
	at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1867)
	at java.lang.Runtime.loadLibrary0(Runtime.java:870)
	at java.lang.System.loadLibrary(System.java:1122)
	at gnu.io.CommPortIdentifier.(CommPortIdentifier.java:123)
	at com.sdyx.monitor.util.socket.InitSerialtSocket.run(InitSerialtSocket.java:64)
	at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:788)
	at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:778)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:335)
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:155)
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:135)
	at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:87)
	at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5143)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	... 10 more

07-Aug-2018 10:51:27.410 SEVERE [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive D:\java\tomcat\apache-tomcat-8.0.1\apache-tomcat-8.0.1\webapps\monitor.war
 java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/monitor]]
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:729)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:697)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:976)
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1762)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

1.在jre/bin下添加rxtxParallel.dll，rxtxSerial.dll 文件