sql查询一个字段不同值并返回

Posted 2021-01-23 闫超辉

sql

SELECT COUNT(字段),分组字段,SUM(字段),SUM(字段) 
FROM 表 GROUP BY 分组字段

 

java

    EntityWrapper<ProjectEntity> pp= new EntityWrapper<ProjectEntity>();
    pp.eq("depcode", community);
    int proc = projectService.selectCount(pp);
        pp.setSqlSelect("COUNT(depcode) as pro01,SUM(budgetmoney) as pro01money,status,SUM(usemoney)AS pro01usemoney").groupBy("status");
        List<Map<String,Object>> obj=projectService.selectMaps(pp);
        
        // 定义下标数组
                String[] indexStrList = {"01","02","03","04","05"};
                List<String> indexList=Arrays.asList(indexStrList);
                List<String> newIndexList = new ArrayList<>(indexList);
        JSONObject jsonObject = new JSONObject();
        for(Map<String,Object> m : obj){
             if(newIndexList.indexOf(m.get("status")) != -1 ){
            // 对象的key
                String key = "pro" + m.get("status");
                jsonObject.put(key,m.get("pro01"));
                jsonObject.put("pro" + m.get("status") + "money", m.get("pro01money"));
                jsonObject.put("pro" + m.get("status") + "usemoney", m.get("pro01usemoney"));
                newIndexList.remove(m.get("status"));
             }
        }
        for(String str : newIndexList){
            jsonObject.put("pro" + str,0);
            jsonObject.put("pro" + str + "money", 0);
            jsonObject.put("pro" + str + "usemoney", 0);
        }
         maptos.put("pro",jsonObject);