我的代码哪里出错了呢，大神们。我下载的是慕课网里的DEMO...JSP篇

Question

type Exception reportmessagedescription The server encountered an internal error () that prevented it from fulfilling this request.exceptionorg.apache.jasper.JasperException: 3, org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802)root causejava.lang.IllegalArgumentException: 3, org.apache.tomcat.util.http.ServerCookie.maybeQuote(ServerCookie.java:276) org.apache.tomcat.util.http.ServerCookie.appendCookieValue(ServerCookie.java:209) org.apache.coyote.tomcat5.CoyoteResponse.addCookie(CoyoteResponse.java:949) org.apache.coyote.tomcat5.CoyoteResponseFacade.addCookie(CoyoteResponseFacade.java:290) org.apache.jsp.details_jsp._jspService(details_jsp.java:166) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:802)note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

Answer 1

看log：in the Apache Tomcat/5.0.28 logs.肯定是你代码逻辑有问题