JSP中如何取得下拉框的值?
jsp獲取下拉框組件的值
1.首先,寫一個帶有下拉框的前臺頁
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="request3.jsp" method="post">
來自的國家<br/>
<select name="country">
<option value="中國">中國</option>
<option value="美國">美國</option>
<option value="俄羅斯">俄羅斯</option>
</select>
<br/>
<input type="submit" />
</form>
</body>
</html>
2.寫一個處理頁獲取下拉框組件的值
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String national = request.getParameter("country");
out.println(national);
%>
</body>
</html>