SQL中的case when then else end用法 .以及个人demo

		    		

		    			

							批次统计:
							总打包:
							
							未发送:
							
							已发送:
							
						
						

							明细统计:
							已打包:
							
							未发送:
							
							已发送:
							
						
						

							金额统计:
							已打包:
							
							未发送:
							
							已发送:
							
						
	
		    		
		    	

 

 

var curr_time = new Date();
    var strDate = curr_time.getFullYear()+"-"; 
    strDate += curr_time.getMonth()+1+"-";
    strDate += curr_time.getDate();
	$("#general-SmtDate").datebox("setValue", strDate);
	bankCode =$("#general-bankCode").combobox("getValue");
	bank_flag=$("#bank_flag").val();
	instant_flag=$("#instant_flag").val();
	$.post('/general/count.html',{smtDate:smtDate = $('#first-tb1 input[name=smtDate]').val(), 
		bankCode :bankCode,bankFlag:bank_flag,instantFlag:instant_flag}, function(data){

		data.moneyTotal=formatPriceToRMB(data.moneyTotal);
		data.unsolvedMoney=formatPriceToRMB(data.unsolvedMoney);
		data.sendMoney=formatPriceToRMB(data.sendMoney);
		
		$('#count').form('load', data);
        $("#moneyTotal").textbox("setValue", data.moneyTotal);
        $("#unsolvedMoney").textbox("setValue", data.unsolvedMoney);
        $("#sendMoney").textbox("setValue", data.sendMoney);
	}, "json");

 

@RequestMapping("/count")
	@ResponseBody
	public Map count(String smtDate ,String  bankCode, byte bankFlag ,byte instantFlag ){
		Map resultMap = null;
		try{
			String formatDate = null;
			if(StringUtils.isNotEmpty(smtDate)){
				formatDate = smtDate.replaceAll("-", "");
			}
			
			resultMap = smtBatchService.batchCount(DatasoureFlagEnum.DATA_SMT.getCode(),formatDate,bankCode,bankFlag,instantFlag);
		}catch(Exception e){
			log.error("获取批次汇总数据失败", e);
		}
		return resultMap;
	}

 

/**
	 * 统计非即时到账
	 */
	public Map batchCount(@DataSource(field="smtId")Integer smtId,String smtDate,String bankCode, byte bankFlag ,byte instantFlag){
		Map resultMap=new HashMap();
		//非指定渠道bankCode集合 
		List bankCodeList=null;
		//非指定渠道RouteCode集合
		List routeCodeList=null;
		
		try {
			
			if(bankCode== null ||bankCode==""){
				//非指定bankCode集合 
				bankCodeList=smtBankMapper.queryAllByBankFlags(bankFlag);
				//根据 bankCodeList  获取所有routeCode集合
				routeCodeList=smtRouteMapper.selectByBankCodes(bankCodeList,null);
			}else{
				//非指定bankCode集合 
				bankCodeList=smtBankMapper.queryAllByBankFlag(bankFlag,bankCode);
				//根据 bankCodeList  获取所有routeCode集合
				routeCodeList=smtRouteMapper.selectByBankCodes(bankCodeList,null);
			}
			
		} catch (Exception e) {
			throw new RuntimeException("异常了");
		}
		//当渠道code集合为null时， 直接封装返回信息。
		if(routeCodeList.size()<=0){
			resultMap.put("batchTotal", 0);
			resultMap.put("unsolvedBatch", 0);
			resultMap.put("detailTotal", 0);
			resultMap.put("moneyTotal", 0.00);
			resultMap.put("unsolvedMoney", 0.00);
			resultMap.put("unsolvedDetail", 0);
			resultMap.put("sendBatch", 0);
			resultMap.put("sendDetail", 0);
			resultMap.put("sendMoney", 0.00);
			return  resultMap;
		}
		
		//统计map
		Map batchTotal=smtBatchMapper.batchCounts(instantFlag,smtDate,routeCodeList);
		
		
		
		resultMap.put(
				"batchTotal",
				String.valueOf(batchTotal.get("batchTotal") == null
						|| String.valueOf(batchTotal.get("batchTotal")).equals(
								"0") ? 0 : batchTotal.get("batchTotal")));
		resultMap.put("unsolvedBatch",
				String.valueOf(batchTotal.get("unsolvedBatch") == null
						|| String.valueOf(batchTotal.get("unsolvedBatch"))
								.equals("0") ? 0 : batchTotal
						.get("unsolvedBatch")));
		resultMap.put(
				"sendBatch",
				String.valueOf(batchTotal.get("sendBatch") == null
						|| String.valueOf(batchTotal.get("sendBatch")).equals(
								"0") ? 0 : batchTotal.get("sendBatch")));

		resultMap.put("detailTotal",
				String.valueOf(batchTotal.get("detailTotal") == null
						|| String.valueOf(batchTotal.get("detailTotal"))
								.equals("0") ? 0 : batchTotal
						.get("detailTotal")));
		resultMap.put("unsolvedDetail",
				String.valueOf(batchTotal.get("unsolvedDetail") == null
						|| String.valueOf(batchTotal.get("unsolvedDetail"))
								.equals("0") ? 0 : batchTotal
						.get("unsolvedDetail")));
		resultMap.put(
				"sendDetail",
				String.valueOf(batchTotal.get("sendDetail") == null
						|| String.valueOf(batchTotal.get("sendDetail")).equals(
								"0") ? 0 : batchTotal.get("sendDetail")));

		resultMap.put("moneyTotal",
				String.valueOf(batchTotal.get("moneyTotal") == null
						|| String.valueOf(batchTotal.get("moneyTotal")).equals(
								"0") ? "0." + "00" : batchTotal
						.get("moneyTotal")));

		resultMap.put("unsolvedMoney",
				String.valueOf(batchTotal.get("unsolvedMoney") == null
						|| String.valueOf(batchTotal.get("unsolvedMoney"))
								.equals("0") ? "0." + "00" : batchTotal
						.get("unsolvedMoney")));

		resultMap.put("sendMoney",
				String.valueOf(batchTotal.get("sendMoney") == null
						|| String.valueOf(batchTotal.get("sendMoney")).equals(
								"0") ? "0." + "00" : batchTotal
						.get("sendMoney")));
		
		return resultMap;
	}

 

/**
	 * 根据批量标识分类统计不同状态打包数
	 * @param instantFlag '即时到账标志：1-否；2-是。'
	 * @return
	 */
	Map batchCounts(@Param("instantFlag") Byte instantFlag,@Param("smtDate")String smtDate
			,@Param("listRouteCode")List listRouteCode);

 

 

 

 

 
  	select
	 COUNT(batch_id) as batchTotal,
     SUM(case  when smt_status=50 then 1 else 0 end) as unsolvedBatch,
     SUM(case  when smt_status !=50 then 1 else 0 end) as sendBatch,
	 SUM(case  when smt_status=50 then batch_dtl_num else 0 end) as unsolvedDetail,
     SUM(case  when smt_status !=50 then batch_dtl_num else 0 end) as sendDetail,
     SUM(batch_dtl_num) as detailTotal,
     SUM(case  when smt_status=50 then batch_dtl_amount else 0 end) as unsolvedMoney,
     SUM(case  when smt_status !=50 then batch_dtl_amount else 0 end) as sendMoney,
     SUM(batch_dtl_amount) as moneyTotal
    FROM smt_batch
    WHERE 1=1
  	 
  	   AND instant_flag = #{instantFlag,jdbcType=TINYINT}
  	
  	
        AND smt_date = #{smtDate,jdbcType=VARCHAR}
    
    
    	AND route_code IN
      
		#{item.routeCode}