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java数据库系统开发案例精选中的销售管理系统中关于点业务管理-》订货业务-》查看详细内容的时候，出现错误
发表在JavaWeb图书答疑
2009-04-22
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他的url是http://localhost:8080/sell/goodsorderservlet?method=2&number=order-26
我怀疑是method=2的某个页面有问题，请管理员解答，谢谢，提示信息是：
HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: java.lang.NullPointerException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
com.webtier.GoodsOrderServlet.orderSelectContent(GoodsOrderServlet.java:204)
com.webtier.GoodsOrderServlet.doGet(GoodsOrderServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
java.lang.NullPointerException
org.apache.jsp.operation.orderSelectContent_jsp._jspService(orderSelectContent_jsp.java:152)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
com.webtier.GoodsOrderServlet.orderSelectContent(GoodsOrderServlet.java:204)
com.webtier.GoodsOrderServlet.doGet(GoodsOrderServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.
我在log里面看了，说是GoodsOrderServlet.java里面有警告，请管理员快点帮我解决啦，谢谢……
我怀疑是method=2的某个页面有问题，请管理员解答，谢谢，提示信息是：
HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: java.lang.NullPointerException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
com.webtier.GoodsOrderServlet.orderSelectContent(GoodsOrderServlet.java:204)
com.webtier.GoodsOrderServlet.doGet(GoodsOrderServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
java.lang.NullPointerException
org.apache.jsp.operation.orderSelectContent_jsp._jspService(orderSelectContent_jsp.java:152)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
com.webtier.GoodsOrderServlet.orderSelectContent(GoodsOrderServlet.java:204)
com.webtier.GoodsOrderServlet.doGet(GoodsOrderServlet.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.
我在log里面看了，说是GoodsOrderServlet.java里面有警告，请管理员快点帮我解决啦，谢谢……
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