private static Integer getParamIndex(Map<String, Integer> paramIndexes, String paramName)
			throws DaoGenerateException {
		if (!paramIndexes.containsKey(paramName)) {
			throw new DaoGenerateException("方法参数中必须包含@Param(\"" + paramName + "\")注解或者参数名为\"" + paramName + "\"的参数");
		}
		Integer index = paramIndexes.get(paramName);
		return index;
	}