java web 项目问题，请大神帮帮忙

Question

首次使用idea从svn当下elicpse项目导入，配置完成运行出现这样的错误。

HTTP Status 500 - Filter execution threw an exception

type Exception report

message Filter execution threw an exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Filter execution threw an exception
com.rongyi.common.XssFilter.doFilter(XssFilter.java:23)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
root cause

java.lang.ExceptionInInitializerError
com.rongyi.filter.CheckSessionOutFilter.doFilter(CheckSessionOutFilter.java:42)
com.rongyi.common.XssFilter.doFilter(XssFilter.java:23)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
root cause

java.lang.StringIndexOutOfBoundsException: String index out of range: -1
java.lang.String.substring(String.java:1967)
com.rongyi.common.utils.Constant.getpath(Constant.java:82)
com.rongyi.common.utils.Constant.(Constant.java:69)
com.rongyi.filter.CheckSessionOutFilter.doFilter(CheckSessionOutFilter.java:42)
com.rongyi.common.XssFilter.doFilter(XssFilter.java:23)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
note The full stack trace of the root cause is available in the Apache Tomcat/9.0.0.M9 logs.

Apache Tomcat/9.0.0.M9

web.xml

<?xml version="1.0" encoding="UTF-8"?>

<!-- spring框架必须定义ContextLoaderListener，在启动Web容器时，自动装配Spring applicationContext.xml的配置信息 -->

org.springframework.web.context.ContextLoaderListener

<!-- 指定Spring上下文配置文件 -->
contextConfigLocation
classpath*:applicationContext.xml


spring.profiles.active
production

Dispatcher
org.springframework.web.servlet.DispatcherServlet

<!-- 指定SpringMVC配置文件 -->
contextConfigLocation
/WEB-INF/springmvc.xml

<!-- 指定请求的后缀，可以随意写，这里用.html作为请求后缀 -->
Dispatcher
<!-- *.html -->
/

<!-- 编码格式为UTF-8 -->

encodingFilter
org.springframework.web.filter.CharacterEncodingFilter

encoding
UTF-8


forceEncoding
true



encodingFilter
/*

<!-- 过滤sql注入，对传入的参数过滤特殊字符等 -->

XssFilter
com.rongyi.common.XssFilter


XssFilter
/*

<!-- 检查session是否过期filter -->

CheckSessionFilter



com.rongyi.filter.CheckSessionOutFilter

CheckSessionFilter

/*

index.jsp

请帮帮忙跪求。。。

Answer 1

可以进入index.jsp,但是别的页面就无法进入就包这个错误，跪求