出现500错误

http://localhost:8080/admin/Catalog/list.do

org.apache.ibatis.io.Resources;
org.apache.ibatis.session.SqlSessionFactory;
org.apache.ibatis.session.SqlSessionFactoryBuilder;

java.io.IOException;

DaoFactory {
    DaoFactory ;
    SqlSessionFactory ;
    DaoFactory(){
        SqlSessionFactoryBuilder sqlSessionFactoryBuilder = SqlSessionFactoryBuilder();
        {
            = sqlSessionFactoryBuilder.build(Resources.());
        }(IOException e){
            e.printStackTrace();
        }
    }
    DaoFactory getInstance() IOException {
        (== ){
            = DaoFactory();
        }
        ;
    }
    <>  getDao(Class<> tClass)  {
        .openSession().getMapper(tClass);
    }
}

javax.servlet.*;
javax.servlet.http.HttpServletRequest;
javax.servlet.http.HttpServletResponse;
java.io.IOException;

EncodingFilter Filter {
   String =;
    init(FilterConfig filterConfig) ServletException {
        (filterConfig.getInitParameter()!=){
            =filterConfig.getInitParameter();
        }
    }

    doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        request.setCharacterEncoding();
        response.setCharacterEncoding();
        filterChain.doFilter(request,response);
    }
    destroy() {

    }
}