fix page

src/main/java/com/example/demo/config/MybatisPlusConfig.java

@@ -0,0 +1,26 @@
+package com.example.demo.config;
+
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.autoconfigure.ConfigurationCustomizer;
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan(basePackages = {"com.example.**.mapper"})
+public class MybatisPlusConfig {
+
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor() {
+        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
+        interceptor.addInnerInterceptor(new PaginationInnerInterceptor(DbType.MYSQL));
+        return interceptor;
+    }
+
+    @Bean
+    public ConfigurationCustomizer configurationCustomizer() {
+        return configuration -> configuration.setUseGeneratedShortKey(false);
+    }
+}

src/main/java/com/example/demo/controller/NewsController.java

@@ -1,7 +1,7 @@
 package com.example.demo.controller;
 
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.example.demo.entity.News;
-import com.example.demo.entity.User;
 import com.example.demo.service.NewsService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
@@ -9,6 +9,7 @@ import org.springframework.web.bind.annotation.*;
 import java.util.List;
 
 @RestController
+@RequestMapping("/news")
 public class NewsController {
     private final NewsService newsService;
 
@@ -17,9 +18,11 @@ public class NewsController {
         this.newsService = newsService;
     }
 
-    @GetMapping("/news")
+    @GetMapping("/list")
-    public List<News> getAllNews() {
+    public Page<News> getAllNews(@RequestParam(defaultValue = "1") int page,
-        return newsService.getAllNews();
+                                 @RequestParam(defaultValue = "10") int size) {
+        Page<News> newsPage = new Page<>(page, size);
+        return newsService.getAllNews(newsPage);
     }
 
     @PostMapping("/insertNews")

src/main/java/com/example/demo/entity/News.java

@@ -17,20 +17,20 @@ public class News {
     @TableField(value = "EXCERPT")
     private String excerpt;
 
-    @TableField(value = "CREATE_TIME", fill = FieldFill.UPDATE)
+    @TableField(value = "CREATE_TIME", fill = FieldFill.INSERT)
-    private Timestamp create_time;
+    private Timestamp createTime;
 
-    @TableField(value = "UPDATE_TIME", fill = FieldFill.INSERT)
+    @TableField(value = "UPDATE_TIME", fill = FieldFill.UPDATE)
-    private Timestamp update_time;
+    private Timestamp updateTime;
 
     @TableField(value = "IS_DELETE")
-    private Boolean is_delete;
+    private Boolean isDelete;
 
     @TableField(value = "EXT")
     private String ext;
 
     @TableField(value = "BATCH_ID")
-    private String batch_id;
+    private String batchId;
 
     public News() {
 
@@ -40,14 +40,4 @@ public class News {
         this.title = title;
         this.excerpt = excerpt;
     }
-
-    public News(int id, String title, String excerpt, Timestamp create_time, Timestamp update_time, Boolean is_delete, String ext) {
-        this.id = id;
-        this.title = title;
-        this.excerpt = excerpt;
-        this.create_time = create_time;
-        this.update_time = update_time;
-        this.is_delete = is_delete;
-        this.ext = ext;
-    }
 }

src/main/java/com/example/demo/mapper/NewsMapper.java

@@ -2,6 +2,8 @@ package com.example.demo.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.example.demo.entity.News;
+import org.apache.ibatis.annotations.Mapper;
 
+@Mapper
 public interface NewsMapper extends BaseMapper<News> {
 }

src/main/java/com/example/demo/mapper/UserMapper.java

@@ -2,6 +2,8 @@ package com.example.demo.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.example.demo.entity.User;
+import org.apache.ibatis.annotations.Mapper;
 
+@Mapper
 public interface UserMapper extends BaseMapper<User> {
 }

src/main/java/com/example/demo/service/NewsService.java

@@ -1,10 +1,9 @@
 package com.example.demo.service;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.example.demo.entity.News;
 
-import java.util.List;
-
 public interface NewsService extends IService<News> {
-    List<News> getAllNews();
+    Page<News> getAllNews(Page<News> page);
     News getNewsById(Integer id);
 }

src/main/java/com/example/demo/service/impl/NewsServiceImpl.java

@@ -1,5 +1,6 @@
 package com.example.demo.service.impl;
 
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.example.demo.entity.News;
 import com.example.demo.mapper.NewsMapper;
@@ -12,9 +13,15 @@ import java.util.UUID;
 
 @Service
 public class NewsServiceImpl extends ServiceImpl<NewsMapper, News> implements NewsService {
+    private final NewsMapper newsMapper;
+
+    public NewsServiceImpl(NewsMapper newsMapper) {
+        this.newsMapper = newsMapper;
+    }
+
     @Override
-    public List<News> getAllNews() {
+    public Page<News> getAllNews(Page<News> page) {
-        return list();
+        return newsMapper.selectPage(page, null);
     }
 
     @Override
@@ -26,7 +33,7 @@ public class NewsServiceImpl extends ServiceImpl<NewsMapper, News> implements Ne
     public boolean saveBatch(Collection<News> newsList) {
         String batchId = UUID.randomUUID().toString();
         for (News news : newsList) {
-            news.setBatch_id(batchId);
+            news.setBatchId(batchId);
         }
         return super.saveBatch(newsList);
     }

src/main/resources/application.properties

@@ -3,5 +3,10 @@ spring.datasource.url=jdbc:p6spy:mysql://47.106.93.245:9003/service
 spring.datasource.username=root
 spring.datasource.password=qingyu23.
 spring.datasource.driver-class-name = com.p6spy.engine.spy.P6SpyDriver
+mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl
+mybatis-plus.global-config.db-config.id-type=auto
+logging.level.com.baomidou.mybatisplus=DEBUG
+logging.level.org.apache.ibatis=DEBUG
+