使用Pageable 分页

1. service层 封装

package com.example.demo.service;

import java.util.List;

import org.springframework.data.domain.Pageable;

public abstract class Page<T> {

    private Integer page;//页数
    private Integer size;//每页数量
    private Number total;//总数
    private List<T> content;

    public Page(Pageable pageable) {
        total = count();
        page = pageable.getPageNumber();
        size = pageable.getPageSize();
        if(page <= 0) {
            page = 1;
        }
        long end = (long)page*size;
        long start = end - size;
        content = search(start , end);
    }
    
    /**
     * 获取总数
     */
    protected abstract Number count();
    
    /**
     * 查询结果
     */
    protected List<T> search(Long start , Long end){
        return null;
    }

    public Integer getPage() {
        return page;
    }

    public void setPage(Integer page) {
        this.page = page;
    }

    public Integer getSize() {
        return size;
    }

    public void setSize(Integer size) {
        this.size = size;
    }

    public List<T> getContent() {
        return content;
    }

    public void setContent(List<T> content) {
        this.content = content;
    }
    
    
}

View Code