[TOC]
#### pom.xml引入
~~~
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.6</version>
</dependency>
~~~
#### 分页包装类
~~~
package com.blog.util;
import com.github.pagehelper.PageInfo;
import lombok.Data;
import java.util.List;
@Data
public class PageWrap<T extends List>{
private T data;
private int pageSize;
private int totalPage;
private int recordCount;
public PageWrap() {
}
public PageWrap(T t, int recordCount, int pageSize) {
this.data = t;
this.recordCount = recordCount;
this.pageSize = pageSize;
this.totalPage = computeTotalPage(recordCount, pageSize);
}
public static int computeTotalPage(int recordCount, int pageSize) {
if (recordCount % pageSize == 0) {
return recordCount / pageSize;
} else {
return recordCount / pageSize + 1;
}
}
public static <T extends List> PageWrap<T> createPageWrap(T data, int recordCount, int pageSize) {
return new PageWrap<T>(data, recordCount, pageSize);
}
public static <T extends List> PageWrap<T> createPageWrap(T data, int pageSize) {
PageInfo pageInfo = new PageInfo(data);
return new PageWrap<T>(data, (int) pageInfo.getTotal(), pageSize);
}
}
~~~
service
~~~
public interface ArticleService {
PageWrap<List<Article>> getALLArticel(Integer is_hot);
}
~~~
#### 实现类
~~~
@Service
public class ArticleImpl implements ArticleService {
@Autowired
private ArticleMapper articleMapper;
/**
* @desc: 获取文章列表
* @author: cfun
* @date: 2019-11-08
**/
@Override
public PageWrap<List<Article>> getALLArticel(Integer is_hot) {
//判断账号是否已经存在
List<Article> articleList = articleMapper.selectByExampleWithBLOBs(is_hot);
return PageWrap.createPageWrap(articleList,1,10);
}
}
~~~
