JSONConfig处理日期

javaBean转JSON对象的时候&＃xff0c;使用JSONObject.fromObject(object)的时候&＃xff0c;针对日期转换显示的不是我们想要的效果。具体详情见如下测试代码&＃xff1a;

javaBean对象

package com.zhdw.mgrclient.test;import java.util.Date;public class Person {private String name;private int age;private Date birthday;public String getName() {return name;}public void setName(String name) {this.name &＃61; name;}public int getAge() {return age;}public void setAge(int age) {this.age &＃61; age;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday &＃61; birthday;}}

测试类&＃xff1a;

package com.zhdw.mgrclient.test;import java.util.Date;import net.sf.json.JSONObject;public class JSONTest {public static void main(String[] args) {Person hbk &＃61; new Person();hbk.setAge(30);hbk.setName("黄宝康");hbk.setBirthday(new Date());JSONObject object &＃61; JSONObject.fromObject(hbk);System.out.println(object);}
}


运行输出的结果&＃xff1a;

{"birthday":{"time":1526873584591,"minutes":33,"seconds":4,"hours":11,"month":4,"year":118,"timezoneOffset":-480,"day":1,"date":21},"name":"黄宝康","age":30}


如果我们想输出yyyy-MM-dd格式&＃xff0c;需要配合使用JsonConifg类

package com.zhdw.mgrclient.test;import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;import net.sf.json.JsonConfig;
import net.sf.json.processors.JsonValueProcessor;public class JsonDateValueProcessor implements JsonValueProcessor{private String format &＃61;"yyyy-MM-dd";public JsonDateValueProcessor() { super(); } public JsonDateValueProcessor(String format) { super(); this.format &＃61; format; } &＃64;Overridepublic Object processArrayValue(Object object, JsonConfig arg1) {// TODO Auto-generated method stubreturn process(object);}&＃64;Overridepublic Object processObjectValue(String arg0, Object object, JsonConfig arg2) {// TODO Auto-generated method stubreturn process(object);}private Object process(Object value){ if(value instanceof Date){ SimpleDateFormat sdf &＃61; new SimpleDateFormat(format,Locale.CHINA); return sdf.format(value); } return value &＃61;&＃61; null ? "" : value.toString(); } }

新建一个JsonDateValueProcessor 类实现JsonValueProcessor接口&＃xff0c;在使用JSONObject.fromObject(object)的时候&＃xff0c;多传入一个JsonConfig配置对象。

代码如下&＃xff1a;

package com.zhdw.mgrclient.test;import java.util.Date;import net.sf.json.JSONObject;
import net.sf.json.JsonConfig;public class JSONTest {public static void main(String[] args) {Person hbk &＃61; new Person();hbk.setAge(30);hbk.setName("黄宝康");hbk.setBirthday(new Date());JsonConfig config &＃61; new JsonConfig();config.registerJsonValueProcessor(Date.class,new JsonDateValueProcessor());JSONObject object &＃61; JSONObject.fromObject(hbk,config);System.out.println(object);}
}


运行后控制台输出&＃xff1a;

{"birthday":"2018-05-21","name":"黄宝康","age":30}