1. pom.xml下载依赖

<dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper-spring-boot-starter</artifactId><version>1.4.7</version>
</dependency>

2. applicaiton.yml添加配置

pagehelper:helperDialect: mysqlreasonable: truesupportMethodsArguments: trueparams: count=countSqlpageSizeZero: true

3. UserController.java

    // 查询所有用户信息@GetMapping("/users")public PageInfo<UserBean> showUsers(@RequestParam(value = "pageNum", defaultValue = "1") int pageNum,@RequestParam(value = "pageSize", defaultValue = "1") int pageSize) {// 自动分页System.out.println(":::" + pageNum + ":" + pageSize);PageHelper.startPage(pageNum, pageSize);List<UserBean> users = userService.queryAllUser();return new PageInfo<>(users);}

4. 请求
   http://localhost:8081/api/users?pageSize=2&pageNum=3
5. 返回结果

{
total: 6,
list: [
{
id: 22,
username: "myj22",
password: "45622"
},
{
id: 23,
username: "myj333",
password: "45633"
}
],
pageNum: 3,
pageSize: 2,
size: 2,
startRow: 5,
endRow: 6,
pages: 3,
prePage: 2,
nextPage: 0,
isFirstPage: false,
isLastPage: true,
hasPreviousPage: true,
hasNextPage: false,
navigatePages: 8,
navigatepageNums: [
1,
2,
3
],
navigateFirstPage: 1,
navigateLastPage: 3
}