java.nio.file.InvalidPathException: Illegal char <:> at index 3 错误
版本：tomcat 9， java 9 ，strust2-2.3.24 错误信息：
java.nio.file.InvalidPathException: Illegal char <:> at index 3: jar:file:\E:\j2eeWorkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\lab02ygz1\WEB-INF\lib\struts2-core-2.3.24.jar
web.xml配置
```
<filter>
<filter-name>strust2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>strust2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
```
index.jsp 配置
```
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<a href="${ pageContext.request.contextPath }/hello.action">快速入门</a>
</body>
</html>
```
strust2配置
```<struts>
<package name="default" namespace="/" extends="struts-default">
<action name="hello" class="lab02ygz.HelloAction" method="sayHello"></action>
</package>
</struts>
```
代码就是一个hello world。就不贴了。刚开始学习。遇到这个问题很棘手
