Spring MVC的radiobutton标签

淡淡的烟草味﹌ 2021-07-24 17:20 332阅读 0赞

**一 领域模型**

package org.fkit.domain;
    import java.io.Serializable;
    
    // 域对象，实现序列化接口
    public class User implements Serializable{
         
         private static final long serialVersionUID = 1L;
         
         private String sex;
         public String getSex() {
               return sex;
         }
         public void setSex(String sex) {
               this.sex = sex;
         }
         
    }

**二 控制器**

package org.fkit.controller;
    
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    import org.fkit.domain.User;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.GetMapping;
    
    
    /**
    *  HelloWorldController是一个基于注解的控制器,
    *  可以同时处理多个请求动作，并且无须实现任何接口。
    *  org.springframework.stereotype.Controller注解用于指示该类是一个控制器
    */
    @Controller
    public class UserController{
         
         @GetMapping(value="/radiobuttonForm")
         public String registerForm(Model model) {
             User user = new User();
             // 设置sex变量的值为男，页面的radio单选框的value=男会被选中
             user.setSex("男");
             model.addAttribute("user", user);
             return "radiobuttonForm";
         }
         
         @GetMapping(value="/radiobuttonsForm")
         public String registerForm2(Model model) {
             User user = new User();
             // 设置sex变量的值为男，页面的radio单选框的value=男会被选中
             user.setSex("男");
            // 页面展现的可供选择的单选框内容sexList
             List<String> sexList = new ArrayList<String>();
             sexList.add("男");
             sexList.add("女");
             model.addAttribute("user", user);
             model.addAttribute("sexList", sexList);
             return "radiobuttonsForm";
         }
         
         @GetMapping(value="/radiobuttonsForm2")
         public String registerForm3(Model model) {
             User user = new User();
             // 设置sex变量的值为"1"，页面的radio单选框的value=男会被选中
             user.setSex("1");
            // 页面展现的可供选择的单选框内容sexMap
             Map<String, String> sexMap = new HashMap<String, String>();
             sexMap.put("1", "男");
             sexMap.put("2", "女");
             model.addAttribute("user", user);
             model.addAttribute("sexMap", sexMap);
             return "radiobuttonsForm2";
         }
    }

**三 配置文件**

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns:p="http://www.springframework.org/schema/p"
        xmlns:mvc="http://www.springframework.org/schema/mvc"
         xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="
            http://www.springframework.org/schema/beans
             http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc.xsd     
            http://www.springframework.org/schema/context
             http://www.springframework.org/schema/context/spring-context.xsd">
            
        
        <context:component-scan base-package="org.fkit.controller"/>
        
        <mvc:annotation-driven/>
         
        <mvc:default-servlet-handler/>
        
        
         <bean id="viewResolver"
               class="org.springframework.web.servlet.view.InternalResourceViewResolver"
              p:prefix="/WEB-INF/content/" p:suffix=".jsp"/>
        
    </beans>

**四 视图**

1 radiobuttonForm.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <%@ taglib prefix="form"  uri="http://www.springframework.org/tags/form" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html;  charset=UTF-8">
    <title>测试radiobutton标签</title>
    </head>
    <body>
    <h3>form:radiobutton测试</h3>
    <form:form modelAttribute="user" method="post"  action="radiobuttonForm" >
         <table>
               <tr>
                    <td>性别:</td>
                    <td>
                         <form:radiobutton path="sex" value="男"/>男 
                         <form:radiobutton path="sex" value="女"/>女 
                    </td>
               </tr>
         </table>
    </form:form>
    </body>
    </html>

2 radiobuttonsForm.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <%@ taglib prefix="form"  uri="http://www.springframework.org/tags/form" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html;  charset=UTF-8">
    <title>测试radiobuttons标签</title>
    </head>
    <body>
    <h3>form:radiobuttons测试</h3>
    <form:form modelAttribute="user" method="post"  action="radiobuttonsForm" >
         <table>
               <tr>
                    <td>性别:</td>
                    <td>
                         <form:radiobuttons path="sex"  items="${sexList }"/>
                    </td>
               </tr>
         </table>
    </form:form>
    </body>
    </html>

3 radiobuttonsForm2.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <%@ taglib prefix="form"  uri="http://www.springframework.org/tags/form" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"  "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html;  charset=UTF-8">
    <title>测试radiobuttons标签</title>
    </head>
    <body>
    <h3>form:radiobuttons测试</h3>
    <form:form modelAttribute="user" method="post"  action="radiobuttonForm2" >
         <table>
               <tr>
                    <td>性别:</td>
                    <td>
                         <form:radiobuttons path="sex"  items="${sexMap }"/>
                    </td>
               </tr>
         </table>
    </form:form>
    </body>
    </html>

**五 测试**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 2][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/d3c6c02a5fd141848316e27e49706ebc.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1]: /images/20210724/030cfc5797054eef9586aec0b5db41b1.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 2]: /images/20210724/95b5db88620e4427bb8b56ceccccd1a0.png