请老师检查一下。谢谢
来源：1-12 自由编程
MAYxDAY
2020-03-06 16:21:37
package com.imooc.servlet;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class CourseServlet
*/
@WebServlet("/cs")
public class CourseServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public CourseServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
Course course=new Course();
course.setId("s001");
course.setName("核工程与核技术");
course.setCategory("新能源");
request.setAttribute("course", course);
request.getRequestDispatcher("/info.jsp").forward(request, response);
}
}
*****************************************
package com.imooc.servlet;
public class Course {
private String id;
private String name;
private String category;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
@Override
public String toString() {
return "Course [课程id：" + id + ",名称：" + name + ", 所属方向：" + category + "]";
}
}
*******************************************
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h2>课程id：${requestScope.course.id }</h2>
<h2>名称：${requestScope.course.name }</h2>
<h2>课程方向${requestScope.course.Category }</h2>
<h2>${course}</h2>
<h2>课程等级${param.level}</h2>
</body>
</html>
1回答
-
同学你好，代码中出现错误，在jsp页面调用category应该是小写。具体修改如下：
如果我的回答解决了你的疑惑，请采纳，祝学习愉快~
0
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