流程

1，maven 依赖

2，在 mybatis 配置文件启用插件

3，修改 service 层

依赖

1<!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper -->
2<dependency>
3    <groupId>com.github.pagehelper</groupId>
4    <artifactId>pagehelper</artifactId>
5    <version>5.1.2</version>
6</dependency>

启用插件

1<plugins>
2    <plugin interceptor="com.github.pagehelper.PageInterceptor">
3        <property name="helperDialect" value="mysql" />
4    </plugin>
5</plugins>

service 层代码示例

1@Service("accountService")
2public class AccountServiceImpl implements IAccountService {
3    @Autowired
4    private AccountMapper am;
5
6    @Override
7    public PageInfo<Account> selectBySearch(Account record, String startDate, String endDate, String companyName,
8            Integer currentPage, Integer pageSize) {
9        
10        // 如果没有传递分页属性值，默认第一页，每页10条数据
11        if(currentPage == null) {
12            currentPage = 1;
13        }
14        if(pageSize == null) {
15            pageSize = 10;
16        }
17        
18        // 这是关键，设置分页属性
19        PageHelper.startPage(currentPage, pageSize);
20        
21        // 和 mapper 接口文件中的方法一致
22        List<Account> list = am.selectBySearch(record, startDate, endDate, companyName);
23        
24        // 分页成功，返回
25        PageInfo<Account> pageInfo = new PageInfo<>(list);
26        return pageInfo;
27    }
28}