访问时出现了错误，跳出了这段代码怎么回事。在别的电脑能够跳转！！！谢谢大佬们

2017-11-18 01:06:17 256 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

汇编语言中的跳转指令：从JMP到JE/JZ的实战避坑指南本文深入解析汇编语言中JMP、JE/JZ等核心跳转指令的实战应用与常见陷阱。通过对比无条件跳转与条件跳转，结合标志位设置、有符号/无符号比较混淆等典型错误案例，提供静态审查与动态调试技巧，帮助开发者避开逻辑错误，编写高效可靠的底层代码。阅读详情

Type Exception Report

Message An exception occurred processing JSP page [/viewStudent.jsp] at line [17]

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception
org.apache.jasper.JasperException: An exception occurred processing JSP page [/viewStudent.jsp] at line [17]

14: </tr>
15:
16: <%
17: List<Student> students=studentUtil.getAllStudent();
18: Iterator<Student> it=students.iterator();
19: while(it.hasNext()) {
20: Student temp=it.next();

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:584)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:481)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

Root Cause
java.lang.NullPointerException
edu.gcp.dao.StudentDAOImpl.getAllStudent(StudentDAOImpl.java:20)
org.apache.jsp.viewStudent_jsp._jspService(viewStudent_jsp.java:136)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

Note The full stack trace of the root cause is available in the server logs.

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