ShardingJDBC Pagination: Complete Guide

Sharding-JDBC offers a class called “PaginationQuery” to support pagination queries in a distributed environment. By using this class, you can perform pagination queries effectively. The steps are as follows:

1. Create a PaginationQuery object and specify the pagination requirements, such as the number of data items per page and the current page number.
2. Call the execute method of the PaginationQuery object to perform pagination query operation.
3. Process the query results to extract the necessary information.

The example code is shown below:

PaginationQuery paginationQuery = new PaginationQuery();
paginationQuery.setPageSize(10); // 设置每页查询的数据量
paginationQuery.setPageNo(1); // 设置当前所在页码

//执行分页查询
List<User> userList = paginationQuery.execute();
for(User user : userList){
    System.out.println(user);
}

It is important to note that when using shardingjdbc for pagination queries, the sharding key must be in the same position in the pagination query to ensure data consistency.