刚刚接触maven，用maven运行了tomcat，发现jsp无法访问，显示一个无法编译jsp。大概原因可能有2个。
你的jsp页面中存在无法被tomcat识别的错误标签tomcat的版本问题org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 1 in the generated java file
The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files
An error occurred at line: 1 in the generated java file
The type java.lang.Class cannot be resolved. It is indirectly referenced from required .class files
An error occurred at line: 23 in the generated java file
The method getName() is undefined for the type Class
maven提供的tomcat6，而我选用本地的高版本tomcat8尝试一下
这一次成功了。后边我查找了相关的问题。发现tomcat6版本不支持。
详情查看下边这篇博客。
https://blog.csdn.net/u010931123/article/details/80680629