根据实体生成条件语句

import java.lang.reflect.Field;

/**
 * 根据实体生成条件语句
 * @author RuiLin.Xie - xKF24276
 *
 */
public class Main
{

	public static void main(String[] args) throws IllegalArgumentException, IllegalAccessException
	{

		Bean bean = new Bean();
		bean.setUid(12345);
		bean.setUName("xie");
//		bean.setUpwd("**##**987");
		
		beanMakeWhere(bean);
	}
	
	public static void beanMakeWhere(Bean bean) throws IllegalArgumentException, IllegalAccessException
	{
		Field[] fields = bean.getClass().getDeclaredFields();
		
		StringBuffer where = new StringBuffer();
		
		String tj = " like ";
		
		for(int i = 0; i < fields.length; i++)
		{
			
			String fName = fields[i].getName();
			fields[i].setAccessible(true);
			Object value = fields[i].get(bean);
			if(value == null)
			{
				continue;
			}
			
			if(value instanceof Number)
			{
				if( Integer.parseInt(value.toString()) == 0)
				{
					continue;
				}
				if(where.length() > 0)
				{
					where.append(" AND ");
				}
				where.append(fName + "=" + value + "");
			}
			else
			{
				if(where.length() > 0)
				{
					where.append(" AND ");
				}
				where.append(fName + " like '%" + value + "%'");
			}

			
		}
		
		System.out.println(where.toString());
	}

}