使用Spring创建接口发布实时日活数据

╰+哭是因爲堅強的太久メ 2022-10-27 14:57 220阅读 0赞

### 这里写自定义目录标题 ###

*  使用Spring创建接口发布实时日活数据
 *   *  一、日活数据查询接口相关要求
     *   *  1.1 访问路径
         *  1.2 要求数据格式
     *  二、搭建SpringWeb发布工程
     *   *  2.1 创建工程
         *  2.2 配置文件
         *   *  2.2.1 pom.xml
             *  2.2.2 application.properties
     *  三、 代码实现
     *   *  3.1 数据层
         *   *  3.1.1 数据层mapper
             *  3.1.2 封装每小时日活的方法类
             *  3.1.3 数据层 实现配置
         *  3.2 service层
         *   *  3.2.1 service层接口类
             *  3.2.2 service层实现类
         *  3.3 controller层
         *  3.4 主程序增加扫描包

# 使用Spring创建接口发布实时日活数据 #

本文主要针对上一篇文件中的实时日活数据搭建数据接口供前端人员进行实时数据展示使用。

背景前提：使用SparkStreaming计算得出的实时日活数据数据和分时日活数据已经通过Phonix保存到Hbase中的gmall2020\_dau表中，现在需要通过数据接口的方式提供给前端人员进行实时数据的展示。

实时数据处理：[https://blog.csdn.net/weixin\_42796403/article/details/113573389][https_blog.csdn.net_weixin_42796403_article_details_113573389]

## 一、日活数据查询接口相关要求 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70]

### 1.1 访问路径 ###

![在这里插入图片描述][20210204185500127.png]

### 1.2 要求数据格式 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 1]

## 二、搭建SpringWeb发布工程 ##

### 2.1 创建工程 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 3]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 4]

此外，还需要在Developer选项中勾选lombok，Web选项中勾选SpringWeb。

### 2.2 配置文件 ###

#### 2.2.1 pom.xml ####

<dependency>
        <groupId>org.apache.phoenix</groupId>
        <artifactId>phoenix-core</artifactId>
        <version>5.0.0-HBase-2.0</version>
        <exclusions>
          <exclusion>
            <groupId>org.glassfish</groupId>
            <artifactId>javax.el</artifactId>
          </exclusion>
    </exclusions>
    </dependency>
    
    <dependency>
           <groupId>com.google.guava</groupId>
           <artifactId>guava</artifactId>
           <version>20.0</version>
    </dependency>

#### 2.2.2 application.properties ####

server.port=8070
    
    logging.level.root=error
     
    spring.datasource.driver-class-name=org.apache.phoenix.jdbc.PhoenixDriver
    spring.datasource.url=jdbc:phoenix:hadoop102,hadoop103,hadoop104:2181
    spring.datasource.data-username=
    spring.datasource.data-password=
    
    #mybatis
    #mybatis.typeAliasesPackage=com.example.phoenix.entity
    mybatis.mapperLocations=classpath:mapper/*.xml
    mybatis.configuration.map-underscore-to-camel-case=true

## 三、 代码实现 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80Mjc5NjQwMw_size_16_color_FFFFFF_t_70 6]

### 3.1 数据层 ###

#### 3.1.1 数据层mapper ####

package com.atguigu.gmallpublisher.mapper;
    
    import com.atguigu.gmallpublisher.beans.DAUPerHour;
    import org.springframework.stereotype.Repository;
    import java.util.List;
    
    /** * 分析数据接口需要查询什么样的数据 * 总数： [{"id":"dau","name":"新增日活","value":1200}, {"id":"new_mid","name":"新增设备","value":233}] * 分时统计：{"yesterday":{"11":383,"12":123,"17":88,"19":200 },"today":{"12":38,"13":1233,"17":123,"19":688 }} * 需要的数据：a：当日日活 * b：当日日活中新增的设备数 * c：某日每个小时的日活数，将每个小时 和 日活数封装为数据模型 */
    @Repository
    public interface DauMapper { 
    
        Integer getDAUByData(String date);
    
        Integer getNewMidCountByDate(String date);
    
        List<DAUPerHour> getAllDAUPerHour(String date);
    
    }

#### 3.1.2 封装每小时日活的方法类 ####

package com.atguigu.gmallpublisher.beans;
    
    import lombok.*;
    
    @Setter
    @Getter
    @ToString
    @AllArgsConstructor
    @NoArgsConstructor
    public class DAUPerHour { 
    
        private String hour;
        private Integer dauCount;
    
    }

#### 3.1.3 数据层 实现配置 ####

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
    
    <mapper namespace="com.atguigu.gmallpublisher.mapper.DauMapper">
    
        <select id="getDAUByData" resultType="int">
            select count(*) from  GMALL2020_DAU  where LOGDATE = #{LOGDATE}
        </select>
    
    
        <select id="getNewMidCountByDate" resultType="int">
            select  count(*)
            from
                (select mid from GMALL2020_DAU  where  LOGDATE = #{LOGDATE} ) t1
                left join
                 (select mid from GMALL2020_DAU  where  LOGDATE < #{LOGDATE} ) t2
                 on t1.mid = t2.mid
                 where t2.mid is null
        </select>
    
    
        <select id="getAllDAUPerHour" resultType="com.atguigu.gmallpublisher.beans.DAUPerHour">
            select
                LOGHOUR hour ,count(*) dauCount
            from GMALL2020_DAU  where  LOGDATE = #{LOGDATE}
            group by LOGHOUR
        </select>
        
    </mapper>

### 3.2 service层 ###

#### 3.2.1 service层接口类 ####

package com.atguigu.gmallpublisher.service;
    
    import com.atguigu.gmallpublisher.beans.DAUPerHour;
    
    import java.util.List;
    
    public interface PublisherService { 
    
        Integer getDAUByData(String date);
    
        Integer getNewMidCountByDate(String date);
    
        List<DAUPerHour> getAllDAUPerHour(String date);
    
    }

#### 3.2.2 service层实现类 ####

package com.atguigu.gmallpublisher.service;
    
    import com.atguigu.gmallpublisher.beans.DAUPerHour;
    import com.atguigu.gmallpublisher.mapper.DauMapper;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    import java.util.List;
    
    @Service
    public class PublisherServiceImpl implements PublisherService{ 
    
        @Autowired
        private DauMapper mapper;
    
        @Override
        public Integer getDAUByData(String date) { 
            return mapper.getDAUByData(date);
        }
    
        @Override
        public Integer getNewMidCountByDate(String date) { 
            return mapper.getNewMidCountByDate(date);
        }
    
        @Override
        public List<DAUPerHour> getAllDAUPerHour(String date) { 
            return mapper.getAllDAUPerHour(date);
        }
    }

### 3.3 controller层 ###

package com.atguigu.gmallpublisher.controller;
    
    import com.alibaba.fastjson.JSONObject;
    import com.atguigu.gmallpublisher.beans.DAUPerHour;
    import com.atguigu.gmallpublisher.service.PublisherService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import java.time.LocalDate;
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    
    /* http://localhost:8070/realtime-total?date=2020-08-15 [{"id":"dau","name":"新增日活","value":1200}, {"id":"new_mid","name":"新增设备","value":233}] http://localhost:8070/realtime-hours?id=dau&date=2020-08-15 {"yesterday":{"11":383,"12":123,"17":88,"19":200 }, "today":{"12":38,"13":1233,"17":123,"19":688 }} */
    @RestController
    public class PublisherController { 
    
        @Autowired
        private PublisherService service;
    
    
        public JSONObject handleDAUPerHour(List<DAUPerHour> datas){ 
            JSONObject jsonObject = new JSONObject();
    
            for (DAUPerHour data : datas) { 
                jsonObject.put(data.getHour(),data.getDauCount());
            }
    
            return jsonObject;
    
        }
    
        @RequestMapping("/realtime-hours")
        public JSONObject handle2(String date){ 
    
            //查询昨日的数据
            String yesterDate = LocalDate.parse(date).minusDays(1).toString();
            List<DAUPerHour> yesDAUPerHour = service.getAllDAUPerHour(yesterDate);
    
            //查询今日的数据
            List<DAUPerHour> todayDAUPerHour = service.getAllDAUPerHour(date);
    
            JSONObject yesJSON = handleDAUPerHour(yesDAUPerHour);
            JSONObject todayJSON = handleDAUPerHour(todayDAUPerHour);
    
            //封装结果
            JSONObject result = new JSONObject();
            //写入jsonobject
            result.put("yesterday",yesJSON);
            result.put("today",todayJSON);
    
            //让jackson生成json，不要将fastjson生成的字符串直接写回，会产生转义字符
            return result;
    
        }
    
    
        /* springboot 内置了jackson（json的解析框架） 如果方法声明了@Responsebody，自动将返回值转换成JSON，再放入响应体，相应客户端 */
        @RequestMapping("/realtime-total")
        public List handle1(String date){ 
            //准备返回值的数据容器
            ArrayList result = new ArrayList();
    
            HashMap<String, Object> data1 = new HashMap<>();
            HashMap<String, Object> data2 = new HashMap<>();
    
            //查询当日日活
            Integer dauByData = service.getDAUByData(date);
                data1.put("id","dau");
                data1.put("name","新增日活");
                data1.put("value", dauByData);
    
            Integer newMidCountByDate = service.getNewMidCountByDate(date);
                data2.put("id","new_mid");
                data2.put("name","新增设备");
                data2.put("value",newMidCountByDate);
    
             result.add(data1);
             result.add(data2);
    
             return result;
        }
    
    }

### 3.4 主程序增加扫描包 ###

package com.atguigu.gmallpublisher;
    
    import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    @SpringBootApplication
    //通知容器使用代理的方式为Mapper创建对象
    @MapperScan(basePackages = "com.atguigu.gmallpublisher.mapper")
    public class GmallPublisherApplication { 
    
        public static void main(String[] args) { 
            SpringApplication.run(GmallPublisherApplication.class, args);
        }
    
    }

[https_blog.csdn.net_weixin_42796403_article_details_113573389]: https://blog.csdn.net/weixin_42796403/article/details/113573389
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