一个空指针异常,完全解决不了!求大神帮忙!急啊!
org.apache.jasper.JasperException: An exception occurred processing JSP page /Web/orders/Mybid.jsp at line 136
133: %>
134: <tr>
135: <td class="td_nbg_m"><%=model.getfromId()%></td>
136: <td class="td_nbg_m"><%=new productDao().GetModel(model.gettoId()).getname()%></td>
137: <td class="td_nbg_m">
138: <%=model.getcontents()%></td>
139: <td class="td_nbg_m"><%=model.getaddTime() %></td>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:521)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:430)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
java.lang.NullPointerException
org.apache.jsp.Web.orders.Mybid_jsp._jspService(Mybid_jsp.java:210)
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:388)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
个人感觉是<%=new productDao().GetModel(model.gettoId()).getname()%>返回了一个空值,但是这一句代码在别的页面中能够正常运行,我试过把里面model.gettoId()改成一个int值,是能够执行的。上面那个乱码了不知道有没有影响。另外我分数太低,帖子分数全部也只能给10分了...求各位大神帮忙啊!