package com.gx.obe.server.common.json;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/** 
 * @Description: 实体工具类
 * @author mazc 
 */
public class EntityUtill {

	/**
	 * @Description: map 转对象
	 * @author mazc
	 * @param <T>
	 * @param param
	 * @param clazz
	 * @return 
	 */
	@SuppressWarnings("unchecked")
	public static <T> T toBean(Map<String,Object> param , Class<?> clazz){
		
		Object value = null;
		
		@SuppressWarnings("rawtypes")
		Class[] paramTypes = new Class[1];
		
		Object obj = null;
		
		try {
			//创建实例
			obj = clazz.newInstance();
			Field[] f = clazz.getDeclaredFields();
			List<Field[]> flist = new ArrayList<Field[]>();
			flist.add(f);
			
			Class<?> superClazz = clazz.getSuperclass();
			while(superClazz != null){
				f = superClazz.getFields();
				flist.add(f);
				superClazz = superClazz.getSuperclass();
			}
			
			for (Field[] fields : flist) {
				for (Field field : fields) {
					String fieldName = field.getName();
					value = param.get(fieldName);
					if(value != null){
						paramTypes[0] = field.getType();
						Method method = null;
						//调用相应对象的set方法
						StringBuffer methodName = new StringBuffer("set");
						methodName.append(fieldName.substring(0, 1).toUpperCase());
						methodName.append(fieldName.substring(1, fieldName.length()));
						method = clazz.getMethod(methodName.toString(), paramTypes);
						method.invoke(obj, ConvertUtil.getValue(value.toString(), fieldName, paramTypes[0]));
					}
				}
			}
		} catch (InstantiationException e) {
			System.out.println(e.getMessage());
			System.out.println("实例化 JavaBean 失败");
		} catch (IllegalAccessException e) {
			System.out.println(e.getMessage());
			System.out.println("分析类属性失败");
		} catch (SecurityException e) {
			System.out.println(e.getMessage());
		} catch (NoSuchMethodException e) {
			System.out.println(e.getMessage());
		} catch (IllegalArgumentException e) {
			System.out.println(e.getMessage());
			System.out.println("映射错误");
		} catch (InvocationTargetException e) {
			System.out.println(e.getMessage());
		}
		return (T)obj;
	}
	
}