表单页面
<%@ 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>
<center>
<form action="<%=request.getContextPath() %>/Aservlet"method="post">
姓名<input type="text" name="name" ><br>
性别：<input type="radio" name="sex" value="男">男
<input type="radio" name="sex" value="女">女 <br>
学历：<select name="education">
<option value="doctor">博士</option>
<option value="master">硕士</option>
<option value="bachelor">本科</option>
<option value="junior ">大专</option>
</select><br>
爱好：
<input type="checkbox" name="habby" value="read">读书
<input type="checkbox" name="habby" value="travel">旅行
<input type="checkbox" name="habby" value="run">跑步
<input type="checkbox" name="habby" value="sing">唱歌<br>
工作经历：
<textarea name="works" rows="10" cols="30">
</textarea><br>
<input type="submit" value="提交" style="width: 150px;height: 30px;">
</form>
</center>
</body>
</html>
Servlet
第一种方式实现（普通式）
/*第一种方式*/
writer.println("<hr>"+"<h2>第一种方式实现（普通式）</h2>");
String education2 = "";
String naemString = request.getParameter("name");
String sex = request.getParameter("sex");
String education = request.getParameter("education");
String[] habbys = request.getParameterValues("habby");
String works = request.getParameter("works");
switch (education) {
case "doctor":
education2 = "博士";
break;
case "master":
education2 = "硕士";
break;
case "bachelor":
education2 = "本科";
break;
case "junior":
education2 = "大专";
break;
default:
break;
}
writer.println("姓名:" + naemString + "<br>");
writer.print("<br>");
writer.println("性别:" + sex + "<br>");
writer.print("<br>");
writer.println("学历:" + education2 + "<br>");
writer.print("<br>");
writer.print("爱好:" + "<br>");
for (String habby : habbys) {
writer.println(habby);
}
writer.print("<br>");
writer.print("<br>");
writer.println("工作经历:" + works + "<br>");
第二种方式实现（通过EntrySet遍历Map集合）
/*第二种方式*/
writer.println("<hr>"+"<h2>第二种方式实现（通过EntrySet遍历Map集合）</h2>");
Map<String, String[]> parameterMap = request.getParameterMap();
for (Entry<String, String[]> entry : parameterMap.entrySet()) {
if (entry.getValue().length>1) {
writer.print(entry.getKey()+": "+"<br>");
for (String string : entry.getValue()) {
writer.print(string+" "+"<br>");
}
}else {
writer.print(entry.getKey()+":"+entry.getValue()[0]+" "+"<br>");
}
}
第三种方式实现（通过JavaBean的内省机制）
/*第三种方式实现*/
writer.println("<hr>"+"<h2>第三种方式实现（通过JavaBean的内省机制）</h2>");
Map<String, String[]> parameterMap2 = request.getParameterMap();
UserBean userBean = new UserBean();
try {
BeanUtils.populate(userBean, parameterMap2);
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
writer.print("姓名"+" "+userBean.getName()+"<br>");
writer.print("性别"+" "+userBean.getSex()+"<br>");
writer.print("学历"+" "+userBean.getEducation()+"<br>");
if (userBean.getHabby().length>1) {
writer.print("爱好"+"<br>");
for (String string : userBean.getHabby()) {
writer.print(string+"、");
}
}
writer.print("<br>");
writer.print("工作经历");
writer.print("<br>");
writer.print(userBean.getWorks());
writer.print("<hr>");
writer.print(" <a href=‘http://www.cnblogs.com/heerpeng/‘>更多方式</a>");
}
时间： 2024-10-11 12:36:01