一般我們開發Spring boot的web應用的時候，一般會實現Service接口，然後實現對應的類，調用方法，通過對DAO映射進行數據訪問，我現在就說一下如何實現簡單快速的實現數據的訪問。通過對DAO層直接進行數據的訪問.

@Results({
        @Result(column = "id",property = "id")
})

@SelectProvider(type = SqlProvider.class,method = "queryReceivableForm")
List<ReceivableForm> queryReceivableForm(Map<String, Object> map);
 

class SqlProvider{
    public String queryReceivableForm(Map<String,Object> map){
        String sql = new SQL(){
            {
                SELECT("id,settlement_cycle,tc_code,insurance_name,payment_channel,amount_receivable,refund_amount," +
                        "net_settlement,actual_amount_received,amount_paid,net_amount");
 
                FROM("t_insurance_collection");
                WHERE("batch_no = #{batchNo}");
                WHERE("archive_flag = ‘1‘");
                if(!StringUtils.isEmpty(map.get("paymentChannel")))
                {
                    WHERE("payment_channel = #{paymentChannel}");
                }
 
            }
        }.toString();
        if (map.get("offset")!=null&&map.get("limit")!=null){
            sql += "limit #{offset},#{limit}";
        }
        return sql;
    }

Spring Boot 使用DAO層不使用xml直接進行數據訪問