Spring之数据格式化

忘是亡心i 2022-04-06 15:56 228阅读 0赞

### ![20181209201143806.png][] ###

### 创建实体类 ###

在每一个字段上面添加对应格式化的注解

package com.alin.AnnotationFormatter;
    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;
    
    public class User implements Serializable{
    
    	private static final long serialVersionUID = 1L;
    
    	@DateTimeFormat(pattern="yyyy-MM-dd")
    	private Date birthday;
    	
    	@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 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;
    	}
    
    	public static long getSerialversionuid() {
    		return serialVersionUID;
    	}
    }

### 创建控制器 ###

package com.alin.AnnotationFormatter;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.ModelAttribute;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    @Controller
    public class FormatterController {
    
    	@RequestMapping(value="/Form")
    	public String registerForm(){
    		
    		return "Formatter/Form";
    	}
    	
    	@RequestMapping(value = "/formatter")
    	public String formatter(@ModelAttribute User user, Model model) {
    		model.addAttribute("user",user);
    		return "Formatter/success";
    	}
    }

### Form.jsp  ###

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>">
        
        <title>格式化</title>
      </head>
      
      <body>
        <form:form  method="post" action="formatter">
    		<span>日期类型</span>
    		<input type="text" id="birthday" name="birthday"/><br/>
    		<span>整数类型</span>
    		<input type="text" id="total" name="total"/><br/>
    		<span>百分数类型</span>
    		<input type="text" id="discount" name="discount"/><br/>
    		<span>货币类型</span>
    		<input type="text" id="money" name="money"/>
    		<input id="submit" type="submit" value="提交"/>
    	</form:form>
      </body>
    </html>

###  success.jsp ###

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
    <%
    	String path = request.getContextPath();
    	String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
    			+ path + "/";
    %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
    <head>
    <base href="<%=basePath%>">
    <title>格式后数据</title>
    </head>
    <body>
    	<form:form modelAttribute="user" method="post" action="">
    		<span>日期类型</span>
    		<form:input path="birthday" /><br/>
    		<span>整数类型</span>
    		<form:input path="total" /><br/>
    		<span>百分数类型</span>
    		<form:input path="discount" /><br/>
    		<span>货币类型</span>
    		<form:input path="money" />
    	</form:form>
    </body>
    </html>

### 运行效果 ###

![20181209201404245.png][]

![20181209201339200.png][]

[20181209201143806.png]: /images/20220406/68d0df56563a40a5a497c893a3876489.png
[20181209201404245.png]: /images/20220406/d42829de02014dc38db93f69d4df731d.png
[20181209201339200.png]: /images/20220406/160c02c66db04b72ba090a52a26b0d4c.png