Thymeleaf+spring jpa+springmvc implementation of addition, deletion, modification and paging query

public interface ZxwxKFJSDWRepository extends JpaRepository<ZxwxKFJSDW, String>,  
                                        PagingAndSortingRepository<ZxwxKFJSDW, String>{  
  //插入数据  
  public ZxwxKFJSDW save(ZxwxKFJSDW jsdw);  
  //更新数据  
  public ZxwxKFJSDW saveAndFlush(ZxwxKFJSDW jsdw);  
  //删除数据  
  @Modifying(clearAutomatically = true)  
  public void delete(String dwm);  
  //按照名字来查询  
  public ZxwxKFJSDW findByDwm(String dwm);  
  /** 
   * 注意：在做分页查询的时候，不需要在这个借口定义方法了。可以直接调用 
   */  
    
    
//public List<ZxwxKFJSDW> findAll();  
}  

Paging query in controller

@RequestMapping(value="/kfjsdwlisthtml") 
   public ModelAndView jsdwdlist(@RequestParam(value="pageNumberstr",required=false) 
   String pageNumberstr){
	   if(pageNumberstr==null ||"".equals(pageNumberstr)){
		   pageNumberstr="0";
       }
	   int pageNumber = Integer.parseInt(pageNumberstr);
       int pageSize = 5;
	   ModelAndView modelAndView=new ModelAndView();
	   PageRequest pageRequest=new PageRequest(pageNumber, pageSize,null);
	   Page<ZxwxKFJSDW> jsdwPage = jsdwRepos.findAll(pageRequest);
	   List<ZxwxKFJSDW> jsdwPagelist=jsdwPage.getContent();
	   modelAndView.addObject("jsdwlist",jsdwPagelist);
	   //总记录数
       modelAndView.addObject("totalPageNumber",jsdwPage.getTotalElements());
       //当前页
       modelAndView.addObject("pageNumberstr",pageNumber);
       //每页多少行
       modelAndView.addObject("pagesize",pageSize);
       //总页数
       modelAndView.addObject("TotalPages",jsdwPage.getTotalPages()-1);
	   modelAndView.setViewName("/jcxx/jsdwList");
	   return modelAndView;
   }

page

<tr th:each="jsdw:${jsdwlist}">
  <td align="center" bgcolor="#EFFBFE" th:text="${jsdw.dwm}">
  <td align="center" bgcolor="#EFFBFE" th:text="${jsdw.jgcode}">
  <td align="center" bgcolor="#EFFBFE" th:text="${jsdw.lxr}">
  <td align="center" bgcolor="#EFFBFE" th:text="${jsdw.tel}">
  <td align="center" bgcolor="#EFFBFE" th:text="${jsdw.szxzqn}">
  <td align="center" bgcolor="#EFFBFE" th:text="${jsdw.szxzqm}">
  <td align="center" bgcolor="#EFFBFE">
    <a th:href="@{'/kfjwdw/updatehtml?dwm='+${jsdw.dwm}}">更新</a>|
    <a th:href="@{'/kfjwdw/delete?dwm='+${jsdw.dwm}}">删除</a>
  </td>
</tr>

<div width="80%" align="center"  bgcolor="#EFFBFE">
            <div align="center" bgcolor="#EFFBFE"> 
                <a th:href="@{/kfjwdw/kfjsdwlisthtml?pageNumberstr=0}">首页</a>
                <a th:href="@{'/kfjwdw/kfjsdwlisthtml?pageNumberstr='+*{pageNumberstr-1}}">上一页</a>
                <a th:href="@{'/kfjwdw/kfjsdwlisthtml?pageNumberstr='+*{pageNumberstr+1}}">下一页</a>
                <a th:href="@{'/kfjwdw/kfjsdwlisthtml?pageNumberstr='+*{TotalPages}}">尾页</a>
            </div>
      </div>