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相關資料：
《21天學通Java Web開發》
獲得封裝所有參數值的Map
1.通過request對象的getParameterMap()方法來獲得封裝所有的參數值的Map對象。
2.通過該Map對象可以獲得指定參數的參數值。
RequestForm5.jsp
1 <%@ page language="java" contentType="text/html;charset=gb2312" %> 2 <html> 3 <head> 4 <title>表單</title> 5 </head> 6 <body> 7 <form action="RequestDemo5.jsp" method="post"> 8 使用者名稱：<input type= "text" name="username"/><br> 9 使用者密碼：<input type= "password" name="userpassword"/><br>10 喜歡的運動：11 <input type = "checkbox" name="sport" value="pingpang">乒乓球12 <input type = "checkbox" name="sport" value="badketball">籃球13 <input type = "checkbox" name="sport" value="football">足球<br>14 <input type="submit" value="提交">15 </form>16 </body>17 </html>View Code
RequestDemo5.jsp
1 <%@ page language="java" contentType="text/html;charset=gb2312" import="java.util.*" %> 2 <html> 3 <head> 4 <title>使用request對象獲得封裝所有參數值的Map</title> 5 </head> 6 <body> 7 <%-- 通過request對象的getParameterMap封裝所有的參數值的Map --%> 8 <% 9 Map<String, String[]> mapParamter = request.getParameterMap();//獲得封裝備的有參數值的Map10 String[] strUsername = (String[])mapParamter.get("username");//獲得其中的username參數值11 out.println("使用者名稱："+strUsername[0]+"<br>");//列印輸出username參數值12 String[] strPassword = (String[])mapParamter.get("userpassword");//獲得suerpassword參數值13 out.println("使用者密碼："+strPassword[0]+"<br>");//列印輸出userpassword參數值14 String[] strSport = (String[])mapParamter.get("sport");//獲得其中的sport參數值15 out.println("喜歡的運動：");16 for(String sport:strSport){17 out.println(sport);//遍曆列印輸出sport參數值18 } 19 %>20 </body>21 </html>View Code
JAVA-JSP內建對象之request獲得封裝所有參數值的Map
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