【问题标题】:How can i convert my existing mongo db query in to spring boot using aggregation class如何使用聚合类将现有的 mongo db 查询转换为 Spring Boot
【发布时间】:2025-11-30 04:20:01
【问题描述】:

我写了 mongodb 查询。并且在使用聚合类在 Spring Boot 中转换它时遇到一些问题。所以,请帮助我,我希望它使用聚合类在 Spring Boot 中转换它。

db.api_audit.aggregate([{

  $match: {
      merchant_id: '015994832961',
      request_time: {$gte: ISODate("2017-05-11T00:00:00.0Z"), 
          $lt: ISODate("2017-05-12T00:00:00.0Z")}}},
{  
   $group: 
    {
        _id: {
        SERVICE_NAME: "$service_name",

        STATUS: "$status"
    },
    count: {
        "$sum": 1
    }
}
}, {


 $group: {
    _id: "$_id.SERVICE_NAME",

    STATUSCOUNT: {
        $push: {
            Service_name: "$_id.STATUS",
            count: "$count"
        }
    }
}
 },
 { $sort : { "STATUSCOUNT.count" : -1} }
  ])

下面是db查询响应

{
"_id" : "sendOTP",
"STATUSCOUNT" : [ 
    {
        "status" : "SUCCESS",
        "count" : 2.0
    }
]
}

提前致谢。

【问题讨论】:

    标签: java spring mongodb spring-boot


    【解决方案1】:

    首先创建所有必需的操作,然后将它们添加到聚合管道。然后将其提供给自动装配的 mongotemplate。

    类似这样的:

    @Autowired
    private final MongoTemplate mongoTemplate;
    
    void aggregate()
    {
    
        Criteria match = where("merchant_id").is("015994832961").andOperator(where("request_time").gte(Date.parse("2017-05-11T00:00:00.0Z")).lt(Date.parse("2017-05-11T00:00:00.0Z")));
        GroupOperation groupOperation1 = group(fields().and("SERVICE_NAME").and("STATUS")).count().as("count");
        GroupOperation groupOperation2 = ...//(not sure how push works here, but it should not be hard to figure out)
        SortOperation sortOperation = sort(DESC, "STATUSCOUNT.count");
    
        Aggregation aggegation = Aggregation.newAggregation(match, groupOperation1, groupOperation2, sortOperation);
    
        List<Result> results = mongoTemplate.aggegate(aggregation, ObjectOfCollectionToRunOn.class, Result.class).getMappedResults();
    }
    

    【讨论】:

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