JSON和GSON的使用

JSONObject 处理问题

相关博客参考：https://www.cnblogs.com/free-dom/p/5801866.html

json-lib 和google gson 的使用

TorgCadre res=new TorgCadre();
res.setName(torgcadre.getName());//姓名
res.setMarriage(torgcadre.getMarriage());
res.setWeight(torgcadre.getWeight());
res.setSex(torgcadre.getSex());
res.setJkInfo(torgcadre.getJkInfo());
res.setBirthday(torgcadre.getBirthday());

//JSONObject 处理日期字段问题,把对象转换成json数据
JsonConfig config1 = new JsonConfig();
config1.registerJsonValueProcessor(Date.class, new JsonDateValueProcessor("yyyyMMdd"));
JSONObject  jsonObject= JSONObject.fromObject(res,config1);

//GSON把对象转换成json数据 
Gson gson = new GsonBuilder().setDateFormat("yyyyMMdd").create();
String str = gson.toJson(res); 
JSONArray jsonArray=JSONArray.fromObject(str);

//JSONArray把集合转换成json数据
List<DepositWork> list=new ArrayList<DepositWork>();
JsonConfig config1 = new JsonConfig();
config1.registerJsonValueProcessor(Date.class, new JsonDateValueProcessor("yyyyMMdd"));
JSONArray jsonArray=JSONArray.fromObject(list,config1);

　　

package com.diamond.web.utils;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;  

import net.sf.json.JsonConfig;
import net.sf.json.processors.JsonValueProcessor;  

/**
 * 对象转json日期处理类
 * ClassName: JsonDateValueProcessor
 * @Description: TODO
 * @author HJJ
 * @date 2017-12-18
 */
public class JsonDateValueProcessor  implements JsonValueProcessor {
    private String format ;  

    public JsonDateValueProcessor() {
        super();
    }  

    public JsonDateValueProcessor(String format) {
        super();
        this.format = format;
    }  

    public Object processArrayValue(Object paramObject,
            JsonConfig paramJsonConfig) {
        return process(paramObject);
    }  

    public Object processObjectValue(String paramString, Object paramObject,
            JsonConfig paramJsonConfig) {
        return process(paramObject);
    }  

    private Object process(Object value){
        if(value instanceof Date){
            SimpleDateFormat sdf = new SimpleDateFormat(format,Locale.CHINA);
            return sdf.format(value);
        }
        return value == null ? "" : value.toString();
    }  

}