DAO.java
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package com.fh.dao;
/**
 * 修改时间:2015、12、11
 */
public interface DAO {
	
	/**
	 * 保存对象
	 * @param str
	 * @param obj
	 * @return
	 * @throws Exception
	 */
	public Object save(String str, Object obj) throws Exception;
	
	/**
	 * 修改对象
	 * @param str
	 * @param obj
	 * @return
	 * @throws Exception
	 */
	public Object update(String str, Object obj) throws Exception;
	
	/**
	 * 删除对象 
	 * @param str
	 * @param obj
	 * @return
	 * @throws Exception
	 */
	public Object delete(String str, Object obj) throws Exception;
	/**
	 * 查找对象
	 * @param str
	 * @param obj
	 * @return
	 * @throws Exception
	 */
	public Object findForObject(String str, Object obj) throws Exception;
	/**
	 * 查找对象
	 * @param str
	 * @param obj
	 * @return
	 * @throws Exception
	 */
	public Object findForList(String str, Object obj) throws Exception;
	
	/**
	 * 查找对象封装成Map
	 * @param s
	 * @param obj
	 * @return
	 * @throws Exception
	 */
	public Object findForMap(String sql, Object obj, String key , String value) throws Exception;
	
}