The server encountered an internal error () that prevented it from fulfilling th

问题描述

org.apache.jasper.JasperException:java.lang.NullPointerExceptionorg.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:541)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:435)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)javax.servlet.http.HttpServlet.service(HttpServlet.java:803)rootcausejava.lang.NullPointerExceptionorg.apache.jsp.login_jsp._jspService(login_jsp.java:148)org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)javax.servlet.http.HttpServlet.service(HttpServlet.java:803)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)javax.servlet.http.HttpServlet.service(HttpServlet.java:803这个是什么错误啊,跪求大神

解决方案

解决方案二:
java.lang.NullPointerExceptionorg.apache.jsp.login_jsp._jspService(login_jsp.java:148)login.jsp里面有空指针了,自己坚持下
解决方案三:
jsp错误空指针,应该是你在后台往前台的值是个对象,而且你引用了这个对象中并不存在的字段。好好检查一下。
解决方案四:
能问一下怎么查吗
解决方案五:
login_jsp.java:148这个行数是你的jsp页面生成的servlet中的行数。在tomcat的work目录下面搜login_jsp.java文件,看148行代码。或者你直接看自己的jsp页面,找找其中有可能为空的地方,然后排查。
解决方案六:
你会用eclipse做系统吗,能帮我做个系统吗,就是仓库的系统增删改查。。。。我的代码一共才98行啊
解决方案七:
如果你是想学习java呢,建议你努力学习吧。如果只是想给老师交一份作业,那去csdn的下载区或者百度中搜一下,现成的简单的增删改查系统现成的都很多的。csdn没有帮人做东西的习惯。

时间: 2024-11-05 18:48:30

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