Spring MVC使用注解格式化数据

左手的ㄟ右手 2021-07-24 18:57 440阅读 0赞

**一 领域模型**

package org.fkit.domain;
    
    import java.io.Serializable;
    import java.util.Date;
    import org.springframework.format.annotation.DateTimeFormat;
    import org.springframework.format.annotation.NumberFormat;
    import org.springframework.format.annotation.NumberFormat.Style;
    
    
    // 域对象，实现序列化接口
    public class User implements Serializable{
        
        private static final long serialVersionUID = 1L;
        
        // 日期类型
        @DateTimeFormat(pattern="yyyy-MM-dd")
        private Date birthday;
        // 正常数字类型
        @NumberFormat(style=Style.NUMBER, pattern="#,###")  
        private int total;  
        // 百分数类型
        @NumberFormat(style=Style.PERCENT)  
        private double discount;  
        // 货币类型
        @NumberFormat(style=Style.CURRENCY)  
        private double money;  
        
        public User() {
            super();
            // TODO Auto-generated constructor stub
        }
    
        public Date getBirthday() {
            return birthday;
        }
    
        public void setBirthday(Date birthday) {
            this.birthday = birthday;
        }
    
        public int getTotal() {
            return total;
        }
    
        public void setTotal(int total) {
            this.total = total;
        }
    
        public double getDiscount() {
            return discount;
        }
    
        public void setDiscount(double discount) {
            this.discount = discount;
        }
    
        public double getMoney() {
            return money;
        }
    
        public void setMoney(double money) {
            this.money = money;
        }
    
        @Override
        public String toString() {
            return "User [birthday=" + birthday + ", total=" + total
                    + ", discount=" + discount + ", money=" + money + "]";
        }
    }

**二 控制器**

package org.fkit.controller;
    
    import org.fkit.domain.User;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.ModelAttribute;
    import org.springframework.web.bind.annotation.PostMapping;
    
    
    @Controller
    public class FormatterController{
         
        @GetMapping(value="/testForm")
         public String registerForm(){
            // 跳转到测试表单数据格式化
            return "testForm";
        }
         
        @PostMapping(value="/test")
         public String test(
                 @ModelAttribute User user,
                 Model model) {
             System.out.println(user);
             model.addAttribute("user", user);
             return "success";
         }
    }

**三 视图**

1 success.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <%@ taglib prefix="form"  uri="http://www.springframework.org/tags/form" %>
    <%@ taglib uri="http://www.springframework.org/tags"  prefix="spring" %>
    <!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AnnotationFormatterFactory</title>
    </head>
    <body>
    <h3>测试表单数据格式化</h3>
    <form:form modelAttribute="user" method="post" action="" >
    <table>
         <tr>
               <td>日期类型:</td>
               <td><form:input path="birthday"/></td>
         </tr>
         <tr>
               <td>整数类型:</td>
               <td><form:input path="total"/></td>
         </tr>
         <tr>
               <td>百分数类型:</td>
               <td><form:input path="discount"/></td>
         </tr>
         <tr>
               <td>货币类型:</td>
               <td><form:input path="money"/></td>
         </tr>
    </table>
    </form:form>
    </body>
    </html>

2 testForm.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!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AnnotationFormatterFactory</title>
    </head>
    <body>
    <h3>测试表单数据格式化</h3>
    <form action="test" method="post">
         <table>
              <tr>
                <td><label>日期类型: </label></td>
                 <td><input type="text" id="birthday" name="birthday"  ></td>
             </tr>
             <tr>
                <td><label>整数类型: </label></td>
                 <td><input type="text" id="total" name="total"  ></td>
             </tr>
             <tr>
                <td><label>百分数类型: </label></td>
                 <td><input type="text" id="discount" name="discount"  ></td>
             </tr>
             <tr>
                <td><label>货币类型: </label></td>
                 <td><input type="text" id="money" name="money"  ></td>
             </tr>
             <tr>
                 <td><input id="submit" type="submit" value="提交"></td>
             </tr>
         </table>
    </form>
    </body>
    </html>

**四 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:c="http://www.springframework.org/schema/c"
        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>

**五 测试**

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