Gosn Util

package common.util;

import java.lang.reflect.Type;
import java.math.BigDecimal;
import java.util.Date;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;


public final class JsonUtil {

	/** 
	 * @Fields gson : TODO 初始化 序列化工具
	 */ 
	private static Gson gson = new GsonBuilder()
		.registerTypeAdapter(Long.class, new LongAdapter())
		.registerTypeAdapter(Date.class, new DateAdapter())
		.registerTypeAdapter(BigDecimal.class, new BigDecimalAdapter())
		.create();
	
	/** 
	 * @Description: TODO 将 Object 序列化为 Json 字符串
	 * @param @param obj
	 * @param @return
	 * @return 
	 * @throws 
	 */
	public static String toJson(Object obj) {
		return gson.toJson(obj);
	}
	
	/** 
	 * @Description: TODO 将 Json 字符串序列化成 Object
	 * @param @param str
	 * @param @param clazz
	 * @param @return
	 * @return 
	 * @throws 
	 */
	public static Object fromJson(String str, Class<?> clazz) {
		return gson.fromJson(str, clazz);
	}
	
  public static <T> T fromJson(String str, Type type) {
	  return gson.fromJson(str, type);
	}
}