SpringMVC如何获取表单数据(radio和checkbox)

 package cn.hadron.bean; import java.io.Serializable; import java.util.Arrays; /** * create table users( id int auto_increment primary key, username varchar(45), password varchar(45), age int default 0 ); insert into users(username,password,age) values('hadron','123',18); * @author chengyq * */ // 域对象，实现序列化接口 public class UserBean implements Serializable { private Integer id; private String username; private String password; private String birthday; private Integer age; //测试单选按钮 private String sex; //测试复选按钮 private String[] favorite; public UserBean() {} public UserBean(String username, String password,int age) { this.username = username; this.password = password; this.age=age; } public UserBean(String username, String birthday,String sex) { this.username = username; this.birthday = birthday; this.sex=sex; } public Integer getId() { return id; } public String getUsername() { return username; } public String getPassword() { return password; } public Integer getAge() { return age; } public void setId(Integer id) { this.id = id; } public void setUsername(String username) { this.username = username; } public void setPassword(String password) { this.password = password; } public void setAge(Integer age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public String[] getFavorite() { return favorite; } public void setFavorite(String[] favorite) { this.favorite = favorite; } public String getBirthday() { return birthday; } public void setBirthday(String birthday) { this.birthday = birthday; } @Override public String toString() { return "UserBean{" + "id=" + id + ", username='" + username + '\'' + ", password='" + password + '\'' + ", birthday='" + birthday + '\'' + ", age=" + age + ", sex='" + sex + '\'' + ", favorite=" + Arrays.toString(favorite) + '}'; } } 

 package cn.hadron.controller; import cn.hadron.bean.UserBean; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import java.util.ArrayList; import java.util.List; @Controller @RequestMapping(value = "/f") public class FormController { @RequestMapping(value="/getEditPage",method= RequestMethod.GET) public String getEditPage(Model model) { System.out.println("表单测试"); UserBean user = new UserBean("jack","1997-7-1","女"); // model中添加属性user，值是user对象 model.addAttribute("user",user); //返回Edit.jsp页面 return "edit"; } @RequestMapping(value="/edit",method=RequestMethod.POST) public String edit(@ModelAttribute UserBean user,Model model) { System.out.println("获取表单数据："); //@ModelAttribute注解指示了参数应该从模型（这里所说的“模型”指 Model）中获取 model.addAttribute("username", user.getUsername()); model.addAttribute("birthday", user.getBirthday()); model.addAttribute("sex", user.getSex()); model.addAttribute("favorite", user.getFavorite()); System.out.println("user="+user); //返回userPage.jsp页面 return "userPage"; } /** * 可以用@ModelAttribute注解的方法做一些初始化操作。 * 当同一个controller中有多个方法被@ModelAttribute注解标记， * 所有被@ModelAttribute标记的方法均会被执行，按先后顺序执行，然后再进入请求的方法 * @return */ @ModelAttribute("webList") public List getWebList() { List webList = new ArrayList(); webList.add("SpringMVC"); webList.add("SpringBoot"); webList.add("SpringCloud"); return webList; } } 

 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>   
用户信息编辑页面
 
 
 
姓名:
 
性别:
 
 
生日:
 
爱好:
 
 

 <%-- Created by IntelliJ IDEA. User: chengyq Date: 2018/9/3 Time: 14:27 To change this template use File | Settings | File Templates. --%><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>   
您提交的用户信息
 
 
Username
${username}
 
Birthday
${birthday}
 
Sex
${sex}
 
favorite
 <% String[] favorite = (String[])request.getAttribute("favorite"); for(String f: favorite) { out.println(f); } %>

 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>   
 
 
 
用户名:
 
密码:
 

 package com.yyx.model; public class User{ private String userName; private String userPwd; public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getUserPwd() { return userPwd; } public void setUserPwd(String userPwd) { this.userPwd = userPwd; } }

 package com.yyx.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller @RequestMapping("/user") public class UserController { @RequestMapping("/login") public String loginByUser(String userName, String userPwd) { System.out.println("userName is:" + userName); System.out.println("userPwd is:" + userPwd); return "success"; } }

 String userName=request.getParameter("userName"); String userPwd=request.getParameter("userPwd");

 package com.yyx.controller; import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller @RequestMapping("/user") public class UserController { @RequestMapping("/login") public String loginByUser(HttpServletRequest request) { String userName=request.getParameter("userName"); String userPwd=request.getParameter("userPwd"); System.out.println("userName is:" + userName); System.out.println("userPwd is:" + userPwd); return "success"; } }

 package com.yyx.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import com.yyx.model.User; @Controller @RequestMapping("/user") public class UserController { @RequestMapping("/login") public String loginByUser(User user) { System.out.println("userName is:" + user.getUserName()); System.out.println("userPwd is:" + user.getUserPwd()); return "success"; } }