PageHelper 使用

<dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper</artifactId>
    <version>5.0.0</version>
</dependency>

<plugin interceptor="com.github.pagehelper.PageInterceptor">
</plugin>

public ModelAndView home(@RequestParam(value="pn",defaultValue="1")Integer pn)

            //在查询之前调用
            //显示的页码,每页显示的个数
            PageHelper.startPage(pn,5);
            //startPage 后紧跟一个查询
            List list = this.adminFacade.getAllTeacher(pd);
            //使用 PageInfo 包装
            PageInfo page = new PageInfo(list);
            mv.addObject("teachers", page);

<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<table>

<c:forEach items="teachers" var="teacher">
<tr>
<td>${teacher.tname}</td>
<td>${teacher.fullname }</td>

</tr>

</table>

//页码逻辑
<ul>
            <li><a href="<%=basePath%>address/message?pn=1">首页</a></li>
            <c:if test="${pageInfo.hasPreviousPage}">
                <li class="prev disabled"><a
                    href="<%=basePath%>address/message?pn=${pageInfo.pageNum-1}">?</a></li>
            </c:if>
            <c:forEach items="${pageInfo.navigatepageNums }" var="page_Num">
                <c:if test="${page_Num==pageInfo.pageNum }">
                    <li class="active"><a href="#">${page_Num}</a></li>
                </c:if>
                <c:if test="${page_Num!=pageInfo.pageNum }">
                    <li><a href="<%=basePath%>address/message?pn=${page_Num}">${page_Num}</a></li>
                </c:if>

            </c:forEach>
            <c:if test="${pageInfo.hasNextPage}">
                <li class="next"><a
                    href="<%=basePath%>address/message?pn=${pageInfo.pageNum+1}">?</a></li>
            </c:if>
            <li><a href="<%=basePath%>address/message?pn=${pageInfo.pages}">末页</a></li>
        </ul>

function userLogin(URL,HREF) {
    var data = $(".login").serialize();
    $.ajax({
        url : URL,
        type : "post",
        data : data,
        dataType : ‘json‘,
        success : function(data) {
            if (data.check == "true") {
　　　　　　　　　//前往的地址
                window.location.href =abroot + HREF;
            } else {
                alert("用户名或口令输入错误");
            }
        },
        error : function(data) {
            alert("用户名或口令输入错误");
        }
    });
}