动态Ibatis中parameterClass参数

在我们的项目中采用Ibatis作为访问持久层框架时，有时我们又需要启用JDBC连接来完成某种意义上的操作，而把Ibatis的开发模式更改了又不是我们的初衷，因此我们只能在已经用sqlMap.xml配置好的基础上进行参数封装。

具体参数方法如下：

	/**
	 *  预编译封装对象
	 * @param sqlmap
	 * @param ps
	 * @param sqlId
	 * @param params
	 * @return 绘制PreparedStatement
	 */
	public static PreparedStatement getSqlParameterMap(SqlMapClientImpl sqlmap,PreparedStatement ps,String sqlId,Object params) {
		
		/**获取ibatis参数*/
		ParameterMapping[]paramMappSet = getParameterMapp( sqlmap, sqlId);
		/**反射来装配参数*/
		try {
			int index=0;
			for(ParameterMapping paramMapp : paramMappSet){
				index++;
				String methodName = "get"+toFirstLetterUpperCase(paramMapp.getPropertyName());
				Method method = params.getClass().getDeclaredMethod(methodName);
				Object obj = null; 
				obj = method.invoke(params, null);
				putPreparedStatement(ps,index,obj ,method.getGenericReturnType());
			}
		} catch (Exception e) {
			new Result(Const.RS_ERROR,"","反射装配ibatais参数异常，系统错误！",(Params)params,e,log);
		} 
		
		return ps;
	}
	
	
	/**
	 * 获取ibatis预编译参数
	 * */
	private static ParameterMapping[] getParameterMapp(SqlMapClientImpl sqlmap,String sqlId){
		/**获取sqlMap.xml映射*/
		MappedStatement stmt = sqlmap.getMappedStatement(sqlId);
		/**获取指定ID的parameterClass参数*/
		ParameterMapping[] paramMappSet = stmt.getParameterMap().getParameterMappings();
		
		return paramMappSet;
	}
	
	private static void putPreparedStatement(PreparedStatement ps,int index,Object obj ,Object type) throws SQLException{
		/*String*/
		if(obj instanceof String){
			ps.setString(index, obj.toString());
		}
		/*Integer*/
		if(obj instanceof Integer){
			ps.setInt(index, Integer.valueOf(obj.toString()));
		}
		/*Long*/
		if(obj instanceof Long){
			ps.setLong(index, Long.valueOf(obj.toString()));
		}
		/*Double*/
		if(obj instanceof Double){
			ps.setDouble(index, Double.valueOf(obj.toString()));
		}
		/*Date*/
		if(obj instanceof Date){
		}
		if(obj instanceof BigDecimal){
			ps.setBigDecimal(index, BigDecimal.valueOf(Long.valueOf(obj.toString())));
		}
	}

//**
  * 将手字母大写
**/
	public static String toFirstLetterUpperCase(String strName) {
		if (strName == null || strName.length() < 2) {
			return strName;
		}
		String firstLetter = strName.substring(0, 1).toUpperCase();
		return firstLetter + strName.substring(1, strName.length());
	}