老师这是什么情况
来源：1-1 初识EL表达式
SomnusL
2020-03-27 04:45:10
浏览器里一直在加载没页面，eclipse里会自动蹦出一堆debug。传统的out.println方法就正常显示
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<h1>name:${requestScope.student.name }</h1>
<h2>mobile:${requestScope.student.mobile }</h2>
<h2>grade:${requestScope.student.mobile }</h2>
</body>
</html>
package el;
public class student {
private String name;
private String mobile;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getMobile() {
return mobile;
}
public void setMobile(String mobile) {
this.mobile = mobile;
}
}
package el;
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 studentServlet
*/
@WebServlet("/info")
public class studentServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public studentServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
student stu=new student();
stu.setName("x");
stu.setMobile(null);
String grade="A";
request.setAttribute("student", stu);
request.setAttribute("grade", grade);
request.getRequestDispatcher("/el_info.jsp").forward(request, response);;
}
}
1回答
-
https://class.imooc.com/course/qadetail/208027
同学你好，老师运行同学的代码页面是正确的。运行效果如下：
同学可以查看一下文件位置是否有误，如果还没有解决同学的问题，同学可以将目录结构截图，控制台信息等代码信息发到问答区，会提高老师回答的效率哦~
如果我的回答解决了你的疑惑，请采纳，祝学习愉快~
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