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JSP中如何取得下拉框的值

老白2年前41瀏覽0評論

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>

css導航下拉菜單代碼,JSP中如何取得下拉框的值