添加分页功能

pom.xml

@@ -19,6 +19,25 @@
         <lombok.version>1.18.38</lombok.version>
         <slf4j.version>2.0.17</slf4j.version>
     </properties>
+    
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.11.0</version>
+                <configuration>
+                    <source>17</source>
+                    <target>17</target>
+                    <encoding>UTF-8</encoding>
+                    <compilerArgs>
+                        <arg>-parameters</arg>
+                    </compilerArgs>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
@@ -130,6 +149,13 @@
             <version>11.2.1.jre8</version>
         </dependency>
 
+        <dependency>
+            <groupId>com.github.pagehelper</groupId>
+            <artifactId>pagehelper-spring-boot-starter</artifactId>
+            <version>1.3.0</version>
+        </dependency>
+
+
     </dependencies>
 
 </project>

src/main/java/com/link/controller/UserCountController.java

@@ -1,5 +1,6 @@
 package com.link.controller;
 
+import com.link.domain.PageQuery;
 import com.link.domain.Result;
 import com.link.domain.dto.UserCountDTO;
 import com.link.service.UserCountService;
@@ -14,20 +15,26 @@ public class UserCountController {
     private UserCountService userCountService;
 
     @PostMapping("/toEmail")
-    public Result getEmailUserCount(@RequestBody UserCountDTO dto) {
-        Object result = userCountService.getEmailUserCount(dto.getStartTime());
+    public Result getEmailUserCount(@RequestBody UserCountDTO dto,
+                                    @RequestParam(name = "page",defaultValue = "1") Integer page,
+                                    @RequestParam(name = "pageSize",defaultValue = "20") Integer pageSize) {
+        Object result = userCountService.getEmailUserCount(dto.getStartTime(),page,pageSize);
         return Result.ok("success",result);
     }
 
     @PostMapping("/toGoogle")
-    public Result getGoogleUserCount(@RequestBody UserCountDTO dto) {
-        Object result = userCountService.getGoogleUserCount(dto.getStartTime());
+    public Result getGoogleUserCount(@RequestBody UserCountDTO dto,
+                                     @RequestParam(name = "page",defaultValue = "1") Integer page,
+                                     @RequestParam(name = "pageSize",defaultValue = "20") Integer pageSize) {
+        Object result = userCountService.getGoogleUserCount(dto.getStartTime(),page,pageSize);
         return Result.ok("success",result);
     }
 
     @PostMapping("/toMessage")
-    public Result getMessageUserCount(@RequestBody UserCountDTO dto) {
-        Object result = userCountService.getMessageUserCount(dto.getStartTime());
+    public Result getMessageUserCount(@RequestBody UserCountDTO dto,
+                                      @RequestParam(name = "page",defaultValue = "1") Integer page,
+                                      @RequestParam(name = "pageSize",defaultValue = "20") Integer pageSize) {
+        Object result = userCountService.getMessageUserCount(dto.getStartTime(),page,pageSize);
         return Result.ok("success",result);
     }
 }

src/main/java/com/link/domain/PageQuery.java

@@ -0,0 +1,16 @@
+package com.link.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class PageQuery {
+
+    private Long total;
+    private List list;
+ }

src/main/java/com/link/mapper/UserCountMapper.java

@@ -1,5 +1,6 @@
 package com.link.mapper;
 
+import com.link.domain.PageQuery;
 import com.link.domain.vo.UserCountVO;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;

src/main/java/com/link/service/UserCountService.java

@@ -1,5 +1,6 @@
 package com.link.service;
 
+import com.link.domain.PageQuery;
 import com.link.domain.vo.UserCountVO;
 
 import java.time.LocalDateTime;
@@ -7,10 +8,10 @@ import java.util.List;
 
 public interface UserCountService {
 
-    List<UserCountVO> getEmailUserCount(LocalDateTime startTime);
+    PageQuery getEmailUserCount(LocalDateTime startTime, Integer page, Integer pageSize);
 
-    List<UserCountVO> getGoogleUserCount(LocalDateTime startTime);
+    PageQuery getGoogleUserCount(LocalDateTime startTime, Integer page, Integer pageSize);
 
-    List<UserCountVO> getMessageUserCount(LocalDateTime startTime);
+    PageQuery getMessageUserCount(LocalDateTime startTime, Integer page, Integer pageSize);
 
 }

src/main/java/com/link/serviceImpl/UserCountServiceImpl.java

@@ -1,12 +1,18 @@
 package com.link.serviceImpl;
 
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import com.link.domain.PageQuery;
+import com.link.domain.Result;
 import com.link.domain.vo.UserCountVO;
 import com.link.mapper.UserCountMapper;
 import com.link.service.UserCountService;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
 import org.springframework.stereotype.Service;
 
 import java.time.LocalDateTime;
+import java.util.HashMap;
 import java.util.List;
 
 @Service
@@ -15,17 +21,35 @@ public class UserCountServiceImpl implements UserCountService {
     @Autowired
     private UserCountMapper userCountMapper;
     @Override
-    public List<UserCountVO> getEmailUserCount(LocalDateTime startTime) {
-        return userCountMapper.getEmailUserCount(startTime);
+    public PageQuery getEmailUserCount(LocalDateTime startTime, Integer page , Integer pageSize) {
+        PageHelper.startPage(page,pageSize);
+        List<UserCountVO> userCountVOList =userCountMapper.getEmailUserCount(startTime);
+        PageInfo<UserCountVO> pageInfo = new PageInfo<>(userCountVOList);
+        PageQuery data = new PageQuery();
+        data.setTotal(pageInfo.getTotal());
+        data.setList(userCountVOList);
+        return data;
     }
 
     @Override
-    public List<UserCountVO> getGoogleUserCount(LocalDateTime startTime) {
-        return userCountMapper.getGoogleUserCount(startTime);
+    public PageQuery getGoogleUserCount(LocalDateTime startTime, Integer page , Integer pageSize) {
+        PageHelper.startPage(page,pageSize);
+        List<UserCountVO> userCountVOList =userCountMapper.getGoogleUserCount(startTime);
+        PageInfo<UserCountVO> pageInfo = new PageInfo<>(userCountVOList);
+        PageQuery data = new PageQuery();
+        data.setTotal(pageInfo.getTotal());
+        data.setList(userCountVOList);
+        return data;
     }
 
     @Override
-    public List<UserCountVO> getMessageUserCount(LocalDateTime startTime) {
-        return userCountMapper.getMessageUserCount(startTime);
+    public PageQuery getMessageUserCount(LocalDateTime startTime, Integer page , Integer pageSize) {
+        PageHelper.startPage(page,pageSize);
+        List<UserCountVO> userCountVOList =userCountMapper.getMessageUserCount(startTime);
+        PageInfo<UserCountVO> pageInfo = new PageInfo<>(userCountVOList);
+        PageQuery data = new PageQuery();
+        data.setTotal(pageInfo.getTotal());
+        data.setList(userCountVOList);
+        return data;
     }
 }

src/main/resources/com/link/mapper/UserCountMapper.xml

@@ -29,7 +29,8 @@
                       ) b
              ) c
         where tt >= #{startTime}
-        group by t1;
+        group by t1
+        order by t1 desc;
     </select>
 
     <select id="getGoogleUserCount" resultType="com.link.domain.vo.UserCountVO">
@@ -39,7 +40,8 @@
         select distinct openId,date_format(from_unixtime(time),'%Y-%m-%d %H:%i') tt,time from fx_member_google where 1=1 and time is not null
         )a)b)c
         where tt>= #{startTime}
-        group by t1;
+        group by t1
+        order by t1 desc;
     </select>
 
     <select id="getMessageUserCount" resultType="com.link.domain.vo.UserCountVO">
@@ -50,7 +52,8 @@
         group by username
         )a)b)c
         where tt>= #{startTime}
-        group by t1;
+        group by t1
+        order by t1 desc;
     </select>
 
 </mapper>