分页查询

2022-04-28 15:01:15 阅读：117 来源： 互联网

标签：分页 pageSupport list 查询 nbsp addressName dangQianYe model

mapper

//分页查询加模糊查询
List<Address> showAddress(@Param("addressName") String addressName, @Param("dangQianYe") Integer dangQianYe,@Param("meiYeYouJiGe")  Integer meiYeYouJiGe);
//查询总数加模糊查询
int count(@Param("addressName") String addressName);

mapper.Xml

<select id="showAddress" resultType="com.fenyecha.pojo.Address">

SELECT * FROM `address`
        <where>
        <if test="addressName!=null">
            and `addressName` like concat ('%',#{addressName},'%')
        </if>
        </where>
  LIMIT #{dangQianYe},#{meiYeYouJiGe}
    </select>
    <select id="count" resultType="java.lang.Integer">
        SELECT COUNT(*) FROM `address`
        <where>
            <if test="addressName!=null">
               and `addressName` like concat ('%',#{addressName},'%')
            </if>
        </where>
    </select>

controller

@RequestMapping("/index")

public String Show(Model model, String addressName,Integer dangQianYe){
    System.out.println("123");
    //当前页数
    dangQianYe = dangQianYe != null ? dangQianYe:1;
    PageSupport pageSupport = new PageSupport();
    addressService.showAddress(addressName,dangQianYe,5);
    //总记录数
    pageSupport.setTotalCount(addressService.count(addressName));
    //总页数
    int totalPageCount = pageSupport.getTotalPageCount();
    //当前页数
    model.addAttribute("dangQianYe",dangQianYe);
    dangQianYe = (dangQianYe-1)*5;
    List<Address> list = addressService.showAddress(addressName, dangQianYe, pageSupport.getPageSize());
    model.addAttribute("showAddress",list);
    model.addAttribute("totalPageCount",totalPageCount);
    model.addAttribute("count",pageSupport.getTotalCount());
    return "index";
}

页面

<body>

    <table>
        <tr>
            <th>addressareaid</th>
            <th>addressname</th>
            <th>addressregionid</th>
        </tr>
<c:forEach var="list" items="${showAddress}">
    <tr>
        <td>${list.addressareaid}</td>
        <td>${list.addressname}</td>
        <td>${list.addressregionid}</td>
    </tr>
</c:forEach>
    </table>
    <span>总共有/${count}条数据</span>&nbsp;
    <c:if test="${dangQianYe>1}">
        <a href="${pageContext.request.contextPath }/index?dangQianYe=1">首页</a>&nbsp;&nbsp;&nbsp;
        <a href="${pageContext.request.contextPath }/index?dangQianYe=${dangQianYe-1}">上一页</a>&nbsp;&nbsp;&nbsp
    </c:if>
<c:if test="${dangQianYe<totalPageCount}">
    <a href="${pageContext.request.contextPath }/index?dangQianYe=${dangQianYe+1}">下一页</a>&nbsp;&nbsp;&nbsp;
    <a href="${pageContext.request.contextPath }/index?dangQianYe=${totalPageCount}">末页</a>&nbsp;
</c:if>
    &nbsp;  &nbsp;<span>第<span id="nCurPage">${dangQianYe}</span>页/共<span id="nPageSize">${totalPageCount}</span>页</span>
</body>

标签：分页,pageSupport,list,查询,nbsp,addressName,dangQianYe,model
来源： https://www.cnblogs.com/zhjzhj/p/16202884.html

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分页查询