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推薦好用的分頁外掛PageHelper

輕鬆解決分頁問題 老闆再也不會覺得你工作效率慢

使用PageHelper需要引入jar包。<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>4.2.1</version>
</dependency>

然後在在mybatis-config.xml中新增<!--plugins在settings之後,environments之前-->
<plugins>
<!-- PageHelper4.1.1 -->
<plugin interceptor="com.github.pagehelper.PageHelper">
<property name="dialect" value="mysql"/><!--資料庫方言-->
<!-- 3.3.0版本可用 - 分頁引數合理化,預設false禁用 -->
<!-- 啟用合理化時,如果pageNum<1會查詢第一頁,如果pageNum>pages會查詢最後一頁 -->
<!-- 禁用合理化時,如果pageNum<1或pageNum>pages會返回空資料 -->
<property name="reasonable" value="false"/>
</plugin>
</plugins>

  @RequestMapping("list.html")
    public ModelAndView get(Integer user_id, @RequestParam(value = "pageIndex",required = false,defaultValue = "1") Integer pageIndex){
        System.out.println(pageIndex);

        PageHelper.startPage(pageIndex, 3);//對緊隨其後第一個sql語句有效
        List<BlogRiJi> riJiList = blogRiJiService.getRiJiList(user_id);
        PageInfo<BlogRiJi> page = new
PageInfo<>(riJiList);//把查詢到的集合放入Page中 return new ModelAndView("riji/list", "page", page); }

然後在頁面呼叫即可
下面給出PageInfo類的屬性

 private static final long serialVersionUID = 1L;
    private int pageNum;
    private int pageSize;
    private int size;
    private String orderBy;
    private
int startRow; private int endRow; private long total; private int pages; private List<T> list; private int prePage; private int nextPage; private boolean isFirstPage; private boolean isLastPage; private boolean hasPreviousPage; private boolean hasNextPage; private int navigatePages; private int[] navigatepageNums; private int navigateFirstPage; private int navigateLastPage;