JSP通过遍历数组获取复选框的值

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#JSP通过遍历数组获取复选框的值

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本文介绍了一种使用JSP技术实现复选框值获取的方法。通过定义一个字符串数组来表示复选框的选项，并在提交表单后读取所选的值。此示例展示了如何在JSP页面中动态生成复选框并处理用户输入。

JSP通过遍历数组获取复选框的值

首页代码

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
  </head>
  
  <body>
  <%
String bookType[]={"科技图书","教育图书","文学图书","医学图书","法律图书"};
int number=bookType.length;
%>
   	<div align="center">
获取复选框的值
  <form name="form" method="post" action="dealwith.jsp" onSubmit="return checkEmpty(form)">
    <table width="276">
      <tr>
        <td width="266">请选择您爱看的书籍种类：</td>
      </tr>
      <%
      for(int i=0;i<bookType.length;i++){
      %>
      <tr>
        <td><input type="checkbox" name="name<%=i%>" value="<%=bookType[i]%>">
        <%=bookType[i]%></td>
      </tr>
	<%}%>

    </table>
     <input type="hidden" name="number" value="<%=bookType.length%>">
    <input type="submit" name="Submit" value="提交">
  </form>
</div>
  </body>
</html>

结果页代码

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title></title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
    <%
request.setCharacterEncoding("utf-8");
int number=Integer.parseInt(request.getParameter("number"));
%>
<div align="center">
获取复选框的值
<br>

    <table width="211" border="0">
    <tr>
        <td width="226">您选择为：</td>
      </tr>


<%
for(int i=0;i<number;i++){
  String name="name"+i;
  if(request.getParameter(name)!=null){
%>
      <tr>
        <td width="226"><div align="center"><%=request.getParameter(name)%></div></td>
      </tr>
 <%}}%>
</table><br>
<a href="index.jsp">返回</a></div>
  </body>
</html>