1 使用BeanUtils进行自动映射封装
1 html代码
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head></head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>会员注册</title>
<link rel="stylesheet" href="css/bootstrap.min.css" type="text/css" />
<script src="js/jquery-1.11.3.min.js" type="text/javascript"></script>
<script src="js/bootstrap.min.js" type="text/javascript"></script>
<!-- 引入自定义css文件 style.css -->
<link rel="stylesheet" href="css/style.css" type="text/css" />
<style>
body {
margin-top: 20px;
margin: 0 auto;
}
.carousel-inner .item img {
width: 100%;
height: 300px;
}
font {
color: #3164af;
font-size: 18px;
font-weight: normal;
padding: 0 10px;
}
</style>
</head>
<body>
<!-- 引入header.jsp -->
<jsp:include page="/header.jsp"></jsp:include>
<div class="container"
style="width: 100%; background: url(‘image/regist_bg.jpg‘);">
<div class="row">
<div class="col-md-2"></div>
<div class="col-md-8"
style="background: #fff; padding: 40px 80px; margin: 30px; border: 7px solid #ccc;">
<font>会员注册</font>USER REGISTER
<form class="form-horizontal" style="margin-top: 5px;" action="/WEBTest13/register" method="post">
<div class="form-group">
<label for="username" class="col-sm-2 control-label">用户名</label>
<div class="col-sm-6">
<input type="text" class="form-control" id="username" name="username"
placeholder="请输入用户名">
</div>
</div>
<div class="form-group">
<label for="inputPassword3" class="col-sm-2 control-label">密码</label>
<div class="col-sm-6">
<input type="password" class="form-control" id="inputPassword3" name="password"
placeholder="请输入密码">
</div>
</div>
<div class="form-group">
<label for="confirmpwd" class="col-sm-2 control-label">确认密码</label>
<div class="col-sm-6">
<input type="password" class="form-control" id="confirmpwd"
placeholder="请输入确认密码">
</div>
</div>
<div class="form-group">
<label for="inputEmail3" class="col-sm-2 control-label">Email</label>
<div class="col-sm-6">
<input type="email" class="form-control" id="inputEmail3" name="email"
placeholder="Email">
</div>
</div>
<div class="form-group">
<label for="usercaption" class="col-sm-2 control-label">姓名</label>
<div class="col-sm-6">
<input type="text" class="form-control" id="usercaption" name="name"
placeholder="请输入姓名">
</div>
</div>
<div class="form-group opt">
<label for="inlineRadio1" class="col-sm-2 control-label">性别</label>
<div class="col-sm-6">
<label class="radio-inline"> <input type="radio"
name="sex" id="inlineRadio1" value="option1">
男
</label> <label class="radio-inline"> <input type="radio"
name="sex" id="inlineRadio2" value="option2">
女
</label>
</div>
</div>
<div class="form-group">
<label for="date" class="col-sm-2 control-label">出生日期</label>
<div class="col-sm-6">
<input type="date" class="form-control" name="birthday">
</div>
</div>
<div class="form-group">
<label for="date" class="col-sm-2 control-label">验证码</label>
<div class="col-sm-3">
<input type="text" class="form-control">
</div>
<div class="col-sm-2">
<img src="./image/captcha.jhtml" />
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<input type="submit" width="100" value="注册" name="submit"
style="background: url(‘./images/register.gif‘) no-repeat scroll 0 0 rgba(0, 0, 0, 0); height: 35px; width: 100px; color: white;">
</div>
</div>
</form>
</div>
<div class="col-md-2"></div>
</div>
</div>
<!-- 引入footer.jsp -->
<jsp:include page="/footer.jsp"></jsp:include>
</body>
</html>
2 User类代码
package p5.request;
public class User {
private String uid;
private String username;
private String password;
private String name;
private String email;
private String sex;
private String birthday;
public String getUid() {
return uid;
}
public void setUid(String uid) {
this.uid = uid;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public String getBirthday() {
return birthday;
}
public void setBirthday(String birthday) {
this.birthday = birthday;
}
@Override
public String toString() {
return "User [uid=" + uid + ", username=" + username + ", password=" + password + ", name=" + name + ", email="
+ email + ", sex=" + sex + ", birthday=" + birthday + "]";
}
}
3 servlet测试代码
package p5.request;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.beanutils.BeanUtils;
public class RegisterServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 设置request的编码，只适合post方式
request.setCharacterEncoding("UTF-8");
//使用BeanUtils进行自动映射封装
//BeanUtils工作原理：将map中的数据 根据key与实体的属性的对应关系封装
//只要key的名字与实体的属性 的名字一样 就自动封装到实体中
Map<String, String[]> parameterMap = request.getParameterMap();
User user = new User();
try {
BeanUtils.populate(user, parameterMap);
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
System.out.println(user.toString());
//现在这个位置 user对象已经封装好了
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
运行结果如下：
原文地址：https://www.cnblogs.com/jepson6669/p/8328449.html
时间： 2024-10-17 06:44:48