Solution to the problem that jquery triggers the change event of select to fail

jquery cannot trigger the change event of the drop-down box when the page is loaded for the second time. Start tomcat and enter localhost:8080/aa/list.jsp in the address bar. It can trigger the change event of the drop-down box, but from servlet It doesn’t work after I came here. What’s going on?

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>











	编号
	姓名

	
		

		

			
编号
			
姓名
		
		

			
${element.uid }
			
${element.username }
		
		
	

---------------------servlet

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		
		Employee employee_01 = new Employee();
		employee_01.setUid("1");
		employee_01.setUsername("张三");
		
		Employee employee_02 = new Employee();
		employee_02.setUid("2");
		employee_02.setUsername("李四");
		
		List list = new ArrayList();
		list.add(employee_01);
		list.add(employee_02);
		
		request.setAttribute("list", list);
		
		request.getRequestDispatcher("/list.jsp").forward(request, response);		

Question supplement:

You mean, after jumping to the page from the servlet, clicking the drop-down menu and selecting a value will not trigger the following:

Quote

# function(){  
#           
#         $("#sel_emp").live('change',function(){  
#             var value = $('#sel_emp').val();  
#             alert(value);  
#             window.location = "/aa/servlet/Test1Servlet";  
#         }

Is it?

Yes

## Question supplement:

# function(){  
#           
#         $("#sel_emp").live('change',function(){  
#             var value = $('#sel_emp').val();  
#             alert(value);  
#             window.location = "/aa/servlet/Test1Servlet";  
#         }

, right?

Yes

The above is the detailed content of Solution to the problem that jquery triggers the change event of select to fail. For more information, please follow other related articles on the PHP Chinese website!