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in Technique[技术] by (71.8m points)

IDEA 在jsp文件中插入<% for(){ %>html语句<% } %>,这样是错的吗?

<body>
 <table border="1px">
 <tr>
 <th>学号</th>
 <th>姓名</th>
 <th>年龄</th>
 <th>年级</th>
 </tr>
 <%
 //获取request域中的数据
 List<Student> students=(List<Student>)request.getAttribute("student");
 for(Student student:students){
 %>
 <tr>
 <td><%=student.getStuNo()%></td>
 <td><%=student.getStuName()%></td>
 <td><%=student.getStuAge()%></td>
 <td><%=student.getGraName()%></td>
 </tr>
 <%
 }
 %>
 </table>
 </body>

报错

图片.png


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1 Answer

0 votes
by (71.8m points)

空指针, 是不是没取到你后台放到request中的数据


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