SpringMVC如何获取复选框中的值呢？
复选框在Web开发中常用于用户批量勾选某一类值的操作，
如：用户的喜好
那么SpringMVC如何获取用户复选框中的选中值呢？下文将通过示例的方式，讲述其具体的实现方式，如下所示:
实现思路:
在SpringMVC中Controller中获取参数信息，根据html控件的name进行匹配，所以我们可采用获取其它文本控件的方式获取其值
例:
定义一个jsp页面
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html> <html> <head> <meta charset="ISO-8859-1"> <title>Insert title here</title> </head> <body> <form action="/com.java265.helloworld/userReg" method="post"> userName:<input type="text" name="userName" /><br /> email: <input type="text" name="emailAddress" /><br /> password:<input type="password" name="passWord" /><br /> hobby：<input type="checkBox" id="hobby1" name="chkHobby" value="1" /><label for="hobby1" >one</label> <input type="checkBox" id="hobby2" name="chkHobby" value="2" /> <label for="hobby2" >two</label> <input type="checkBox" id="hobby3"name="chkHobby" value="3" /><label for="hobby3" >three</label> <br/> remarks:<textarea rows="3" cols="6" name="txtRemarks"></textarea> <input type="submit" value="submit" /> </form> </body> </html>二、在Entity中加入相应的字段存储相应值
package com.java265.helloworld.Entity;
public class User {
private String userName;
private String eMail;
private String passWord;
private String remarks;
private String hobby; // 爱好
public String getHobby() {
return hobby;
}
public void setHobby(String hobby) {
this.hobby = hobby;
}
public User(String userName, String eMail, String passWord, String remarks, String hobby) {
super();
this.userName = userName;
this.eMail = eMail;
this.passWord = passWord;
this.remarks = remarks;
this.hobby = hobby;
}
public String getRemarks() {
return remarks;
}
public void setRemarks(String remarks) {
this.remarks = remarks;
}
public User(String userName, String eMail, String passWord, String remarks) {
super();
this.userName = userName;
this.eMail = eMail;
this.passWord = passWord;
this.remarks = remarks;
}
public User() {
super();
}
public User(String userName, String eMail) {
super();
this.userName = userName;
this.eMail = eMail;
}
public User(String userName, String eMail, String passWord) {
super();
this.userName = userName;
this.eMail = eMail;
this.passWord = passWord;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String geteMail() {
return eMail;
}
public void seteMail(String eMail) {
this.eMail = eMail;
}
public String getPassWord() {
return passWord;
}
public void setPassWord(String passWord) {
this.passWord = passWord;
}
}
三、Controller中的方法获取相应的值
package com.java265.helloworld.Controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.java265.helloworld.Entity.User;
@Controller
public class UserController {
/**
* 用户返回用户注册
*
*/
@RequestMapping(value = "/userReg", method = RequestMethod.GET)
public String userReg() {
return "userReg";
}
/**
*
* 使用Spring MVC获取文本变量
*
* @param userName :此出的名字缺省情况下只需同表单中的name对应即可获取数值
* @param emailAddress: 同上
*
* @return
*/
@RequestMapping(value = "/userReg", method = RequestMethod.POST)
public String userReg(String userName, String emailAddress, String passWord, String txtRemarks, String chkHobby,
Model model) {
User u = new User(userName, emailAddress, passWord, txtRemarks, chkHobby);
model.addAttribute("u", u);
return "showUserInfo";
}
}
四、页面数据显示进行相应的处理
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
java265.com--ShowUserInfo <br />
<hr />
userName: ${requestScope.u.userName}
<br />
email: ${requestScope.u.eMail} <br />
<br />
passWord: ${requestScope.u.passWord} <br />
<br />
hobby: ${requestScope.u.hobby}
<br />
remarks: ${requestScope.u.remarks}
<br />
</body>
</html>
运行效果如下图所示:
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