SpringBoot+mybatis配置pagehelper实现基础分页

1)pom.xml

<dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper-spring-boot-starter</artifactId>
    <version>1.2.10</version>
</dependency>

2)application.yml

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/javaee
    driver-class-name: com.mysql.cj.jdbc.Driver
    username: root
    password: "00000000"  #密码加双引号
mybatis:
  configuration:
    map-underscore-to-camel-case: true  #开启驼峰命名映射
#分页配置
pagehelper:
  helper-dialect: mysql
  reasonable: true
  support-methods-arguments: true
  params: count=countSql

3)controller

@Controller
public class IndexController {
    @Autowired
    ArticleService articleService;
    @GetMapping("/")
    public String getArticleList(Model model,
                                 HttpServletRequest request,
                                 @RequestParam(value = "pageNum",
                                               defaultValue = "1",
                                               required = false) int pageNum,
                                 @RequestParam(value = "pageSize",
                                               defaultValue = "6") int pageSize){
				//pageNum前端传来的页号，pageSize每页的条数
        Page page = PageHelper.startPage(pageNum,pageSize);     
        List<ArticleDTO> articleDTOS = articleService.getArticleDTOS();
        PageInfo<ArticleDTO> pageInfo = new PageInfo<>(page.getResult());
        model.addAttribute("articles",articleDTOS);  			//获取文章传输对象放到前端
        model.addAttribute("pageInfo",pageInfo);

        return "index";

    }
}

4)前端Thymeleaf

<nav aria-label="Page navigation" style="float: right">
    <ul class="pagination">
        <!--首页-->
        <li >
            <a th:href="'/?pageNum='+${pageInfo.navigateFirstPage}" >首页</a>
        </li>
        <!--上一页-->
        <li th:if="${pageInfo.hasPreviousPage}">
            <a th:href="'/?pageNum=' + ${pageInfo.prePage}" aria-label="Previous">
                <span aria-hidden="true">上一页</span>
            </a>
        </li>
        <!--遍历当前显示的页号，假如当前页为6 遍历后只显示4 5 6 7 8-->
        <th:block th:each="nav : ${pageInfo.navigatepageNums}" >
        <li  th:class="${nav==pageInfo.pageNum}?'active':'' " 
             th:if="${(nav < (pageInfo.pageNum-2))||(nav > (pageInfo.pageNum+2)) ?'false':'true'}" > 
            <a th:href="'/?pageNum=' + ${nav}"
               th:text="${nav}">
          	</a>
         </li>
        </th:block>
        <!--下一页-->
        <li th:if="${pageInfo.hasNextPage}">
            <a th:href="'/?pageNum=' + ${pageInfo.nextPage}" aria-label="Next">
                <span aria-hidden="true">下一页</span>
            </a>
        </li>
        <!--尾页-->
        <li>
            <a th:href="'/?pageNum='+${pageInfo.navigateLastPage}">尾页</a>
        </li>
    </ul>
</nav>