spring属性编辑器两种实现方式

1.使用自定义属性编辑器

编写自定义属性编辑器*（继承PropertyEditorSupport 实现setAsText）*

package com.hl.test.propertyEditor;

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

public class DatePropertyEditor extends PropertyEditorSupport {
    private String format="yyyy-MM-dd";
    public void setFormat(String format){
        this.format=format;
    }

    @Override
    public void setAsText(String text) throws IllegalArgumentException {
         SimpleDateFormat dateFormat = new SimpleDateFormat(format);  
        try {
            Date d=dateFormat.parse(text);
            this.setValue(d);
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

注册到spring中

<bean id="customEditorConfigurer"
        class="org.springframework.beans.factory.config.CustomEditorConfigurer">
        <property name="customEditors">
            <map>
                <entry key="java.util.Date" value="com.hl.test.propertyEditor.DatePropertyEditor" />
            map>
        property>
    bean>

**

2.注册spring自带属性编辑器

**
定义属性编辑器

public class DatePropertyEditorRegistrar implements PropertyEditorRegistrar{

    public void registerCustomEditors(PropertyEditorRegistry registry) {

        registry.registerCustomEditor(Date.class, new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd"), true));

    }

}

注册自带属性编辑器

class="org.springframework.beans.factory.config.CustomEditorConfigurer">
        <property name="propertyEditorRegistrars">
            id="datePropertyEditorRegistrar" class="com.hl.test.propertyEditor.DatePropertyEditorRegistrar"/> 
        property>
    

两种方式皆可实现