SpringBoot整合分页插件PageHelper笔记

一、导入依赖

<!-- 分页插件pagehelper --><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper-spring-boot-starter</artifactId><version>1.2.5</version></dependency>

二、配置分页属性（也可以不添加配置，使用默认配置）

**方式1：在application.yml或application.properties里面加入属性**在application.yml文件中添加pagehelper:helperDialect: mysqlreasonable: truesupportMethodsArguments: trueparams: count=countSql在application.properties文件中添加#PageHelper分页插件配置pagehelper.helperDialect=mysqlpagehelper.reasonable=truepagehelper.supportMethodsArguments=truepagehelper.params=count=countSql

**方式2：新建一个配置类**@Configurationpublic class PageHelperConfig {@Beanpublic PageHelper getPageHelper() {PageHelper pageHelper = new PageHelper();Properties properties = new Properties();properties.setProperty("helperDialect", "mysql");properties.setProperty("reasonable", "true");properties.setProperty("supportMethodsArguments", "true");properties.setProperty("params", "count=countSql");pageHelper.setProperties(properties);return pageHelper;}}

三、接口中使用

@PostMapping("getUser")//page：当前页码   size：每页条数public R getUser(Integer page,Integer size) {PageHelper.startPage(page,size);List<User> userList = userService.getUser();PageInfo<User> pageInfo = new PageInfo<User>(userList);return R.ok().put("userList", pageInfo);}