javaee springMVC自定义转换类实现日期类型转换

摇滚侠2023-09-13 20:54

定义转换类

java 复制代码

package com.test.editor;

import java.beans.PropertyEditorSupport;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

//自定义转换类
public class DateEditor extends PropertyEditorSupport {

    //将提交过来的字符串 转换为 日期类型
    //比如 2020-01-01
    @Override
    public void setAsText(String text) throws IllegalArgumentException {
        //super.setAsText(text);
        //定义简单日期转换对象
        SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyy-MM-dd");

        //将字符串转换为日期类型
        Date date=null;

        try {
            date= simpleDateFormat.parse(text);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        //将转换好的数据赋值给对应的属性
        setValue(date);

    }
}

加载转换类

java 复制代码

package com.test.controller;

import com.test.editor.DateEditor;
import com.test.pojo.Users2;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.Date;

@Controller
@RequestMapping("/users2")
public class Users2Controller {

    @InitBinder
    public void initBinder(WebDataBinder binder)
    {
        //将自定义的转换类注册到binder对象中
        binder.registerCustomEditor(Date.class,new DateEditor());

    }


    @RequestMapping("/addUser")
    public String addUser(Users2 user2)
    {
         System.out.println(user2);

         return "success";
    }
}