SpringBoot2.0集成分页插件pagehelper-spring-boot-starter

参考SpringBoot2.0集成分页插件pagehelper-spring-boot-starter
1. 添加pom依赖

        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.13</version>
        </dependency>

2. 添加配置

application.yml

pagehelper:
    helperDialect: mysql
    reasonable: true
    supportMethodsArguments: true
    params: count=countSql

application.prperties

# 添加分页配置信息
pagehelper.helperDialect=mysql
pagehelper.reasonable=true
pagehelper.supportMethodsArguments=true
pagehelper.params=count=countSql
pagehelper.page-size-zero=true

3. 在service中添加如下代码

// 开启分页插件,放在查询语句上面 帮助生成分页语句
PageHelper.startPage(page, size);
List<Attachment> attachments = attachmentMapper.getAllAttachments();
// 封装分页之后的数据  返回给客户端展示  PageInfo做了一些封装 作为一个类
PageInfo<Attachment> pageAttachments = new PageInfo<>(attachments);
return pageAttachments;

4. 控制器代码

@GetMapping("/attachment")
public ApiResponse getAllAttachmentsGroup(@RequestParam("page") Integer page, @RequestParam("size") Integer size) {
   return attachmentService.getAllAttachments(page, size);
}

5. 返回数据

{
    "code": 200,
    "message": "success",
    "timestamp": "2020-05-27T09:54:54.784+08:00",
    "data": {
        "total": 6,
        "list": [
            {
                "id": 1,
                "title": "来源组3",
                "format": "doc",
                "url": "/opt/data/aa4.doc",
                "articleId": 1,
                "size": 200,
                "filename": "aa4.doc",
                "filenameOrigin": "abc4.doc"
            },
            {
                "id": 2,
                "title": "来源组3",
                "format": "doc",
                "url": "/opt/data/aa5.doc",
                "articleId": 1,
                "size": 200,
                "filename": "aa4.doc",
                "filenameOrigin": "abc4.doc"
            }
        ],
        "pageNum": 1,
        "pageSize": 2,
        "size": 2,
        "startRow": 1,
        "endRow": 2,
        "pages": 3,
        "prePage": 0,
        "nextPage": 2,
        "isFirstPage": true,
        "isLastPage": false,
        "hasPreviousPage": false,
        "hasNextPage": true,
        "navigatePages": 8,
        "navigatepageNums": [
            1,
            2,
            3
        ],
        "navigateFirstPage": 1,
        "navigateLastPage": 3
    }
}