Mybatis|Mybatis Plus 分页插件

1. 在config文件里面新增分页插件

//分页插件 @Bean public PaginationInterceptor paginationInterceptor() { PaginationInterceptor paginationInterceptor = new PaginationInterceptor(); // 设置请求的页面大于最大页后操作, true调回到首页,false 继续请求默认false // paginationInterceptor.setOverflow(false); // 设置最大单页限制数量,默认 500 条,-1 不受限制 // paginationInterceptor.setLimit(500); // 开启 count 的 join 优化,只针对部分 left join //paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true)); return paginationInterceptor; }

2. 在代码里使用分页插件
@Test void testPageQuery(){ Page page = new Page<>(3,5); //wrapper 条件构造器,模糊查询,排序,多表查询,子查询等 userMapper.selectPage(page,null); List users = page.getRecords(); users.forEach(System.out::println); System.out.println(page.getCurrent()); System.out.println(page.getOrders()); System.out.println(page.getRecords()); System.out.println(page.getSize()); System.out.println(page.getTotal()); System.out.println(page.hasNext()); System.out.println(page.hasPrevious()); }@Test void testPageQuery2(){ Page page = new Page<>(3,5); //wrapper 条件构造器,模糊查询,排序,多表查询,子查询等 IPage mapIPage = userMapper.selectMapsPage(page,null); mapIPage.getRecords().forEach(System.out::println); System.out.println(page.getCurrent()); System.out.println(page.getOrders()); System.out.println(page.getRecords()); System.out.println(page.getSize()); System.out.println(page.getTotal()); System.out.println(page.hasNext()); System.out.println(page.hasPrevious());

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