UserController部分代码

分页

@RequestMapping(value="/findAll.do")public ModelAndView findAll(@RequestParam(defaultValue = "1") int currentPage){PageInfo<User> pageInfo=userService.findAll(currentPage);ModelAndView modelAndView= new ModelAndView();modelAndView.addObject("pageInfo",pageInfo);modelAndView.setViewName("user-list");return modelAndView;}

模糊查询

    @RequestMapping("/findLike.do")public ModelAndView findLike(String username){List<User> userList = new ArrayList<>();userList =userService.findLike(username);PageInfo<User> pageInfo=new PageInfo<User>();pageInfo.setList(userList);ModelAndView modelAndView= new ModelAndView();modelAndView.addObject("pageInfo",pageInfo);modelAndView.setViewName("user-list");return modelAndView;}

Service层部分代码

分页

   @Overridepublic PageInfo<User> findAll(int currentPage){PageInfo<User> pageInfo = new PageInfo<>();pageInfo.setSize(5);int tc = userDao.getTotalCount();pageInfo.setTotalCount(tc);int tp = (int)Math.ceil(tc/5.0);pageInfo.setTotalPage(tp);if(currentPage<1){pageInfo.setCurrentPage(1);}else if(currentPage>tp){pageInfo.setCurrentPage(tp);}else{pageInfo.setCurrentPage(currentPage);}int start = (pageInfo.getCurrentPage()-1)*5;List<User> userList = userDao.findAll(start);pageInfo.setList(userList);return pageInfo;}

模糊查询

    @Overridepublic List<User> findLike(String username) {return userDao.findLike(username);}

拦截

public class LoginFilter implements Filter {@Overridepublic void init(FilterConfig filterConfig) throws ServletException {}@Overridepublic void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {HttpServletRequest request = (HttpServletRequest) servletRequest;HttpServletResponse response = (HttpServletResponse) servletResponse;HttpSession session = request.getSession();User user = (User) session.getAttribute("user");String uri = request.getRequestURI();if(user==null && uri.indexOf("login.do")==-1){response.sendRedirect(request.getContextPath()+"../login.jsp");}else{filterChain.doFilter(request,response);}}@Overridepublic void destroy() {}
}

实现JSP

在这里插入代码片

查询

<form action="${pageContext.request.contextPath}/user/findLike.do"method="post"><div class="col-md-4 data1"><input type="text" class="form-control" name="username"placeholder="username" value=""></div><button type="submit" class="btn bg-maroon">搜索</button></form>

分页切换

<div class="box-tools pull-right"><ul class="pagination"><li><a href="${pageContext.request.contextPath}/user/findAll.do" aria-label="Previous">首页</a></li><li><a href="${pageContext.request.contextPath}/user/findAll.do?currentPage=${pageInfo.currentPage-1}">上一页</a></li><c:forEach begin="1" end="${pageInfo.totalPage}" var="pageNum"><li><a href="${pageContext.request.contextPath}/user/findAll.do?currentPage=${pageNum}">${pageNum}</a></li></c:forEach><li><a href="${pageContext.request.contextPath}/user/findAll.do?currentPage=${pageInfo.currentPage+1}">下一页</a></li><li><a href="${pageContext.request.contextPath}/user/findAll.do?currentPage=${pageInfo.totalPage}" aria-label="Next">尾页</a></li></ul></div>