11-6 后端增加获取统计数值的接口

src/main/java/io/github/yubincloud/fairywiki/controller/EbookSnapshotController.java

+package io.github.yubincloud.fairywiki.controller;
+
+
+import io.github.yubincloud.fairywiki.dto.resp.ErrorCode;
+import io.github.yubincloud.fairywiki.dto.resp.RestfulModel;
+import io.github.yubincloud.fairywiki.dto.resp.StatisticRespDto;
+import io.github.yubincloud.fairywiki.service.EbookSnapshotService;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+import java.util.List;
+
+@RestController
+@RequestMapping("/ebook-snapshot")
+@Api("电子书快照管理")
+public class EbookSnapshotController {
+
+    @Resource
+    private EbookSnapshotService ebookSnapshotService;
+
+    @GetMapping("/get-statistic")
+    @ApiOperation(value = "从电子书快照中获取统计数据")
+    public RestfulModel<List<StatisticRespDto>> getStatistic() {
+        List<StatisticRespDto> statisticRespDtoList = ebookSnapshotService.getStatistic();
+        return new RestfulModel<>(ErrorCode.SUCCESS, "", statisticRespDtoList);
+    }
+}

src/main/java/io/github/yubincloud/fairywiki/dto/resp/StatisticRespDto.java

+package io.github.yubincloud.fairywiki.dto.resp;
+
+import lombok.Data;
+
+import java.util.Date;
+
+@Data
+public class StatisticRespDto {
+    private Date date;
+
+    private int viewCount;
+
+    private int voteCount;
+
+    private int viewIncrease;
+
+    private int voteIncrease;
+}

src/main/java/io/github/yubincloud/fairywiki/mapper/EbookSnapshotMapperCustom.java

 package io.github.yubincloud.fairywiki.mapper;
 
+import io.github.yubincloud.fairywiki.dto.resp.StatisticRespDto;
+
+import java.util.List;
+
 public interface EbookSnapshotMapperCustom {
     void genSnapshot();
+
+    List<StatisticRespDto> getStatistic();
 }

src/main/java/io/github/yubincloud/fairywiki/service/EbookSnapshotService.java

 package io.github.yubincloud.fairywiki.service;
 
+import io.github.yubincloud.fairywiki.dto.resp.StatisticRespDto;
 import io.github.yubincloud.fairywiki.mapper.EbookSnapshotMapperCustom;
 import org.springframework.stereotype.Service;
 
 import javax.annotation.Resource;
+import java.util.List;
 
 @Service
 public class EbookSnapshotService {
@@ -14,4 +16,11 @@ public class EbookSnapshotService {
     public void genSnapshots() {
         ebookSnapshotMapperCustom.genSnapshot();
     }
+
+    /**
+     * 获取首页数值数据：总阅读数、总点赞数、今日阅读数、今日点赞数、今日预计阅读数、今日预计阅读增长
+     */
+    public List<StatisticRespDto> getStatistic() {
+        return ebookSnapshotMapperCustom.getStatistic();
+    }
 }

src/main/resources/mapper/EbookSnapshotMapperCustom.xml

@@ -37,4 +37,21 @@
         WHERE t1.`date` = curdate();
     </update>
 
+    <select id="getStatistic" resultType="io.github.yubincloud.fairywiki.dto.resp.StatisticRespDto">
+        SELECT
+            t1.`date` AS `date`,
+            SUM(t1.view_count) AS viewCount,
+            SUM(t1.vote_count) AS voteCount,
+            SUM(t1.view_increase) AS viewIncrease,
+            SUM(t1.vote_increase) AS voteIncrease
+        FROM
+            ebook_snapshot t1
+        WHERE
+            t1.`date` >= date_sub(curdate(), INTERVAL 1 DAY)
+        GROUP BY
+            t1.`date`
+        ORDER BY
+            t1.`date` ASC;
+    </select>
+
 </mapper>
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