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• https://www.cnblogs.com/guanghe/p/10026099.html

Server 类

@Slf4j@Transactional@Servicepublic class AvatarServiceImpl implements AvatarService {
   	@Autowired	private AvatarDao avatarDao ;		@Autowired	private PaginationProperties paginationProperties ; 	//	do 。。。	@Override	public Page
   
     doFondPageObject(Integer pageCurrent, String name) {
   		log.debug("doFondPageObject pageCurrent={} name={}",pageCurrent,name);		Assert.isArgumentValid(pageCurrent==null||pageCurrent<1, "页码异常");		/**查询:[分页前]总数据量*/		Wrapper
    
      wrapper = //条件				new EntityWrapper
     
      ()				.like(name!=null&&!"".equals(name),"name", name);		Integer totalDataCount = //[分页前]总数据量				avatarDao.selectCount(wrapper);		Assert.isNoFound(totalDataCount==null||totalDataCount==0, "没有数据");		/**查询分页*/		Integer pageSize = 		//以后再定制化				paginationProperties.getPageSize();		int offset = 			//开始位置				paginationProperties.getStartIndex(pageCurrent); 		RowBounds rowBounds = 	//分页查询条件				new RowBounds(offset, pageSize);		List
      
        list = avatarDao.selectPage(rowBounds, wrapper); 		Assert.isNoFound(list==null||list.size()==0, "没有数据!");		return new Page
       
        (list, totalDataCount, pageCurrent, pageSize);	}}
       
      
     
    
   

其中 paginationProperties 、 page<T> 为自定义类

paginationProperties ：

@Data@Configuration@ConfigurationProperties(prefix = "page.config")public class PaginationProperties {
   	/**	 * 默认 每页 数据量	 */	final static private Integer DEFAULT_PAGESIZE = 10 ;  		/**	 * 每页多少条数据	 */	private Integer pageSize = DEFAULT_PAGESIZE ; 		/**	 * 工具:计算分页的startIndex	 * @param pageCurrent 当前页码 1~n	 * @return startIndex	 */	public Integer getStartIndex(Integer pageCurrent) {
   		return (pageCurrent-1)*pageSize ; 	}	}

page<T>

@Datapublic class Page
   
     implements Serializable{
   	private static final long serialVersionUID = 7844855365725887051L;	/**数据s*/	private List
    
      datas ;	/**(分页前)总数据数*/	private Integer totalDataCount = 0 ; 	/**总页数*/	private Integer pageTotal = 0 ; 	/**当前页码*/	private Integer pageCurrent = 1 ; 	/**当前页数据量*/	private Integer pageSize = 3;	public Page(List
     
       datas, Integer totalDataCount, Integer pageCurrent, Integer pageSize) {
   		this.datas = datas;		this.totalDataCount = totalDataCount;		this.pageCurrent = pageCurrent;		this.pageSize = pageSize;		this.pageTotal = (totalDataCount-1)/pageSize + 1;	}	}
     
    
   

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