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javaee springMVC数字类型转换之通过注解的方式

news 2025/7/22 18:18:29

po

在属性上增加注解 @NumberFormat(pattern = “#,#.#”)

package com.test.pojo;import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.format.annotation.NumberFormat;import java.util.Date;public class Users {private int uid;private String uname;private String pwd;//地址对象private Address address;@DateTimeFormat(pattern = "yyyy-MM-dd")private Date birthday;@NumberFormat(pattern = "#,#.#")private float money;public float getMoney() {return money;}public void setMoney(float money) {this.money = money;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday = birthday;}public int getUid() {return uid;}public void setUid(int uid) {this.uid = uid;}public String getUname() {return uname;}public void setUname(String unamea) {this.uname = uname;}public String getPwd() {return pwd;}public void setPwd(String pwd) {this.pwd = pwd;}public Address getAddress() {return address;}public void setAddress(Address address) {this.address = address;}@Overridepublic String toString() {return "Users{" +"uid=" + uid +", uname='" + uname + '\'' +", pwd='" + pwd + '\'' +", address=" + address +", birthday=" + birthday +", money=" + money +'}';}
}

spring配置文件

添加mvc:annotation-driven</mvc:annotation-driven>

<?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:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"><!-- 1. 配置  需要扫描的控制层在哪个包  --><context:component-scan base-package="com.test.controller"></context:component-scan><!-- 2 配置 视图解析器 中的 前缀和后缀  --><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"><!-- 设置前缀  --><property name="prefix" value="/WEB-INF/"/><!-- 设置后缀 --><property name="suffix" value=".jsp"/></bean><!-- 开启注解驱动注册了两个数据转换的注解@NumberFormatannotation支持，@DateTimeFormatjson相关的。。--><mvc:annotation-driven></mvc:annotation-driven></beans>