实体转Json格式。把时间格式格式化

用自己的公用方法处理

把实体转json的同时，把时间格式化，且可以获取部分字段

// An highlighted block
// 时间格式
JsonDateValueProcessor jsonDate = new JsonDateValueProcessor("yyyy-MM-dd HH:mm:ss");
// 把实体转JSON (最后边null，如果想获取实体中的部分值可以写字段名 如: id,name,age )
JSONObject jsonObject = AbstractChangeJsonUtil.changeObjectToJSONObject(jsonDate,planSitePollDO,null);

下面是工具类

import java.util.List;
import java.util.Map;

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

import com.uncentury.hdq.infra.common.json.JsonFormatByName;

/**
 * ClassName: ActivityChangeJsonUtil
 * 
 * @Description: 这个工具类负责每个模块下面把实体转成json返回(AbstractChangeJsonUtil是抽象方法)
 * @author air
 * @date 2016-4-29
 */

public class AbstractChangeJsonUtil {

	/*---------------------这两个方法是抽象出来,专门拿来pick的,如果需要重命名的话,到时候在写 ------------*/
	public static <T> JSONArray changeListToJSONArray(List<T> list,
			String... pickName) {
		if (list == null || list.size() == 0) {
			return new JSONArray();
		}
		JsonConfig JsonFormatByName = new JsonFormatByName(list.get(0)
				.getClass(), null, pickName);
		JSONArray listJsonArray = JSONArray.fromObject(list, JsonFormatByName);
		return listJsonArray;
	}

	public static <T> JSONObject changeObjectToJSONObject(T object,
			String... pickName) {
		if (object == null) {
			return new JSONObject();
		}
		JsonConfig JsonFormatByName = new JsonFormatByName(object.getClass(),
				null, pickName);
		JSONObject objectJsonObject = JSONObject.fromObject(object,
				JsonFormatByName);
		return objectJsonObject;
	}

	/*---------------------这个方法支持JsonValueProcessor对象注入 ------------*/
	public static <T> JSONArray changeListToJSONArray(
			JsonValueProcessor jsonDateValueProcessor, List<T> list,
			String... pickName) {
		if (list == null || list.size() == 0) {
			return new JSONArray();
		}
		JsonConfig JsonFormatByName = new JsonFormatByName(
				jsonDateValueProcessor, list.get(0).getClass(), null, pickName);
		JSONArray listJsonArray = JSONArray.fromObject(list, JsonFormatByName);
		return listJsonArray;
	}

	public static <T> JSONObject changeObjectToJSONObject(
			JsonValueProcessor jsonDateValueProcessor, T object,
			String... pickName) {
		if (object == null) {
			return new JSONObject();
		}
		JsonConfig JsonFormatByName = new JsonFormatByName(
				jsonDateValueProcessor, object.getClass(), null, pickName);
		JSONObject objectJsonObject = JSONObject.fromObject(object,
				JsonFormatByName);
		return objectJsonObject;
	}

	// -----------------------分割线----------------------//

	public static <T> JSONArray changeListToJSONArray(List<T> list,
			Map<String, String> changeName, String... pickName) {
		if (list == null || list.size() == 0) {
			return new JSONArray();
		}
		JsonConfig JsonFormatByName = new JsonFormatByName(list.get(0)
				.getClass(), changeName, pickName);
		JSONArray listJsonArray = JSONArray.fromObject(list, JsonFormatByName);
		return listJsonArray;
	}

	public static <T> JSONObject changeObjectToJSONObject(T object,
			Map<String, String> changeName, String... pickName) {
		if (object == null) {
			return new JSONObject();
		}
		JsonConfig JsonFormatByName = new JsonFormatByName(object.getClass(),
				changeName, pickName);
		JSONObject objectJsonObject = JSONObject.fromObject(object,
				JsonFormatByName);
		return objectJsonObject;
	}

}