SpringMVC自定义分页

后台数据

Controller

@RequestMapping(value = "/page", method = RequestMethod.GET)    public String page(final Model model,                         @RequestParam(value = "page", required = false, defaultValue = "1") final int pageNum,                         @RequestParam(value = "pageSize", required = false, defaultValue = "1") final int pageSize) {        //模拟数据限定pageNum范围为1-6        //模拟数据限定pageSize值为1        List<String> results = new ArrayList<>();        results.add("数据1");        results.add("数据2");        results.add("数据3");        results.add("数据4");        results.add("数据5");        results.add("数据6");        final SearchPageData<String> data = new SearchPageData<>();        data.setPageNo(pageNum);        data.setPageSize(pageSize);        data.setResults(Collections.singletonList(results.get(pageNum-1)));        data.setTotalRecords(results.size());        model.addAttribute("pageData", data);        return "page";    }

SearchPageData

/** *  */package xxx.xxx.xxx;import java.util.List;/** * @author Administrator * */public class SearchPageData<T> {    private int pageStep = 4;    private int pageNo;    private int pageSize;    private int totalRecords;    private List<T> results;    /**     * @return the pageNo     */    public int getPageNo() {        return pageNo;    }    /**     * @param pageNo the pageNo to set     */    public void setPageNo(int pageNo) {        this.pageNo = pageNo;    }    /**     * @return the pageSize     */    public int getPageSize() {        return pageSize;    }    /**     * @param pageSize the pageSize to set     */    public void setPageSize(int pageSize) {        this.pageSize = pageSize;    }    /**     * @return the totalRecords     */    public int getTotalRecords() {        return totalRecords;    }    /**     * @param totalRecords the totalRecords to set     */    public void setTotalRecords(int totalRecords) {        this.totalRecords = totalRecords;    }    /**     * @return the results     */    public List<T> getResults() {        return results;    }    /**     * @param results the results to set     */    public void setResults(List<T> results) {        this.results = results;    }    public int getFirstPageNo() {        return 1;    }    public int getPreviousPageNo() {        if (pageNo <= 1) {            return 1;        }        return pageNo -1;    }    public int getNextPageNo() {        if (pageNo >= getTotalPages()) {            return getTotalPages() == 0 ? 1 : getTotalPages();        }        return pageNo + 1;    }    public int getLastPageNo() {        return getTotalPages() == 0 ? 1 : getTotalPages();    }    /* getDisableFirst() also is ok */    public boolean isDisableFirst() {        return pageNo == getFirstPageNo();    }    /* getDisableLast() also is ok */    public boolean isDisableLast() {        return pageNo == getLastPageNo();    }    /* getEllipsisBefore() also is ok */    public boolean isEllipsisBefore() {        return getBegin() != getFirstPageNo();    }    /* getEllipsisAfter() also is ok */    public boolean isEllipsisAfter() {        return getEnd() != getLastPageNo();    }    public int getTotalPages() {        return totalRecords == 0 ? 1 : (totalRecords + pageSize - 1) / pageSize;    }    public int getBegin() {        if (pageNo > pageStep + 1 && getTotalPages() > 2 * pageStep + 1) {            return pageNo - pageStep;        }        return getFirstPageNo();    }    public int getEnd() {        if (getTotalPages() > 2 * pageStep + 1) {            if (pageNo > getTotalPages() - pageStep && pageNo <= getTotalPages()) {//              return getLastPageNo();            } else if (pageNo > pageStep + 1 && pageNo <= getTotalPages() - pageStep) {                return pageNo + pageStep;            } else {                return 2 * pageStep + 1;            }        }         return getLastPageNo();    }}

页面

page.jsp

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix="pager" tagdir="/WEB-INF/tags" %><c:if test="${not empty pageData.results }">    <c:forEach items="${pageData.results}" var="item">        ${item}    </c:forEach>    <pager:pager pager="${pageData }"/></c:if>

/WEB-INF/tags/pager.tag

<%@ tag pageEncoding="utf-8" %><%@ tag body-content="empty" trimDirectiveWhitespaces="true" %><%@ attribute name="pager" required="true" type="com.example.data.SearchPageData" %><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><p class="text-muted text-right">${pager.pageNo } / ${pager.totalPages } 页，共 ${pager.totalRecords } 条记录</p><ul class="pagination">     <li class="${pager.disableFirst?'disabled':'' }">        <%-- <a href="<c:url value="/page/${pager.firstPageNo }"/>">首页</a> --%>        <a href="?page=${pager.firstPageNo }">首页</a>    </li>    <li class="${pager.disableFirst?'disabled':'' }">        <%-- <a href="<c:url value="/page/${pager.previousPageNo }"/>">&laquo;</a> --%>        <a href="?page=${pager.previousPageNo }">&laquo;</a>    </li>     <li class="${pager.ellipsisBefore?'':'hidden' }">        <a href="#" style="pointer-events: none;">...</a>    </li>    <c:forEach var="pageNo" begin="${pager.begin }" end="${pager.end }">        <li class="${pager.pageNo==pageNo?'active':'' }">            <%-- <a href="<c:url value="/page/${pageNo }"/>">${pageNo }</a> --%>            <a href="?page=${pageNo }">${pageNo }</a>        </li>     </c:forEach>    <li class="${pager.ellipsisAfter?'':'hidden' }">        <a href="#" style="pointer-events: none;">...</a>    </li>    <li class="${pager.disableLast?'disabled':'' }">        <%-- <a href="<c:url value="/page/${pager.nextPageNo }"/>">&raquo;</a> --%>        <a href="?page=${pager.nextPageNo }">&raquo;</a>    </li>     <li class="${pager.disableLast?'disabled':'' }">        <%-- <a href="<c:url value="/page/${pager.lastPageNo }"/>">尾页</a> --%>        <a href="?page=${pager.lastPageNo }">尾页</a>    </li></ul>

效果