旅游线路查询

旅游线路查询-参数传递

header.html页面

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//搜索按钮绑定单击事件，获取搜索输入框的内容
        $("#search-button").click(function () {
            //线路名称
            let rname = $("#search_input").val();
            alert(rname);

            var cid = getParameter("cid");
            //跳转路径 http://localhost/travel/route_list.html?cid=5  拼接上rname=xxx
            location.href = "http://localhost/travel/route_list.html?cid="+cid+"&rname="+rname;
        });
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route_list.html页面：

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        $(function () {
            // let search = location.search;// 查询参数
            // //alert(search);// ?cid=5
            // // 切割字符串，拿到第二个值
            // let cid = search.split("=")[1];//截取
            // alert(cid);

            //获取cid的参数值
            let cid = getParameter("cid");
            let rname = getParameter("rname");
            //判断rname如果不为null或""
            if (rname){
                //url解码
                rname = window.decodeURIComponent(rname);
            }
            alert(cid);
            alert(rname);

            //当页码加载完成后，调用load方法，发送ajax请求加载数据
            laod(cid);
        });
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后台代码

RouteServlet 

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package cn.itcast.travel.web.servlet;

import cn.itcast.travel.domain.PageBean;
import cn.itcast.travel.domain.Route;
import cn.itcast.travel.service.RouteService;
import cn.itcast.travel.service.impl.RouteServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/route/*")
public class RouteServlet extends BaseServlet{

    private RouteService routeService = new RouteServiceImpl();

    /**
     * 分页查询
     * @param request
     * @throws ServletException
     * @throws IOException
     */
    public void pageQuery(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //接收参数
        String currentPageStr = request.getParameter("currentPage");
        String pageSizeStr = request.getParameter("pageSize");
        String cidstr = request.getParameter("cid");

        //接收rname线路名称
        String rname = request.getParameter("rname");
        rname = new String(rname.getBytes("iso-8859-1"),"utf-8");

        int cid = 0;
        //2、处理参数
        if (cidstr != null && cidstr.length()>0){
            cid = Integer.parseInt(cidstr);
        }
        int currentPage = 0;//当前页码，如果不传递，则默认为第一页
        if (currentPageStr!=null && currentPageStr.length()>0){
            currentPage = Integer.parseInt(currentPageStr);
        }else {
            currentPage = 1;
        }
        int pageSize = 0;//每页显示条数，如果不传递，默认每页显示5条记录
        if (pageSizeStr != null && pageSizeStr.length()==0){
            pageSize = Integer.parseInt(pageSizeStr);
        }else {
            pageSize = 5;
        }

        //3、调用service查询pageBean对象
        PageBean<Route> pb = routeService.pageQuery(cid, currentPage, pageSize,rname);

        System.out.println(pb);

        //4、将pageBean对象序列化为json，返回
        writeValue(pb,response);

    }
}
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RouteService接口

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public interface RouteService {

    /**
     * 分页查询 根据类别进行分页查询
     * @param cid
     * @param currentPage
     * @param pageSize
     * @return
     */
    public PageBean<Route> pageQuery(int cid,int currentPage,int pageSize,String rname);

}
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RouteServiceImpl实体类

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package cn.itcast.travel.service.impl;

import cn.itcast.travel.dao.RouteDao;
import cn.itcast.travel.dao.impl.RouteDaoImpl;
import cn.itcast.travel.domain.PageBean;
import cn.itcast.travel.domain.Route;
import cn.itcast.travel.service.RouteService;

import javax.servlet.annotation.WebServlet;
import java.util.List;
public class RouteServiceImpl implements RouteService {

    private RouteDao routeDao = new RouteDaoImpl();

    @Override
    public PageBean<Route> pageQuery(int cid, int currentPage, int pageSize,String rname) {
        //封装PageBean
        PageBean<Route> pb = new PageBean<>();
        //设置当前页码
        pb.setCurrentPage(currentPage);
        //设置每页显示条数
        pb.setPageSize(pageSize);

        //设置总记录数
        int totalCount = routeDao.findTotalCount(cid,rname);
        pb.setTotalCount(totalCount);
        //设置当前页显示的数据集合
        int start = (currentPage-1)*pageSize;
        List<Route> list = routeDao.findByPage(cid, start, pageSize,rname);
        pb.setList(list);

        //设置总页数 = 总记录数/每页显示条数
        int totalPage = totalCount % pageSize ==0 ? totalCount / pageSize : (totalCount / pageSize)+1;
        pb.setTotalPage(totalPage);

        System.out.println(totalPage);

        return pb;
    }
}
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RouteDao接口

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package cn.itcast.travel.dao;

import cn.itcast.travel.domain.Route;

import java.util.List;

/**
 * 分页查询
 */
public interface RouteDao {

    /**
     * 根据cid查询总记录数
     */
    public int findTotalCount(int cid,String rname);



    /**
     * 根据cid，start,pageSize查询当前页的数据集合
     */
    public List<Route> findByPage(int cid,int start,int pageSize,String rname);


}
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RouteDaoImpl

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package cn.itcast.travel.dao.impl;

import cn.itcast.travel.dao.RouteDao;
import cn.itcast.travel.domain.Route;
import cn.itcast.travel.util.JDBCUtils;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;

import java.util.ArrayList;
import java.util.List;

public class RouteDaoImpl implements RouteDao {

    private JdbcTemplate template = new JdbcTemplate(JDBCUtils.getDataSource());
    @Override
    public int findTotalCount(int cid,String rname  ) {
        //String sql = "select count(*) from tab_route where cid = ? and ";

        //1.定义sql模板
        String sql = "select count(*) from  tab_route where 1 = 1 ";

        StringBuilder sb = new StringBuilder(sql);

        List params = new ArrayList();
        //2.判断是否有值
        if (cid != 0){
            sb.append(" and cid = ?");
            params.add(cid);// 添加 ? 对应的值
        }

        if (rname != null && rname.length() > 0){
            sb.append(" and rname like ? ");
            params.add("%"+rname +"%");
        }

        sql = sb.toString();
        System.out.println(sql);
        return template.queryForObject(sql, Integer.class,params.toArray());
    }

    @Override
    public List<Route> findByPage(int cid, int start, int pageSize,String rname) {
        //String sql = "select * from tab_route where cid = ? and rname limit ? , ?";

        String sql = "select * from tab_route where 1=1 ";

        StringBuilder sb = new StringBuilder(sql);

        List params = new ArrayList();
        //2.判断是否有值
        if (cid != 0){
            sb.append(" and cid = ?");
            params.add(cid);// 添加 ? 对应的值
        }

        if (rname != null && rname.length() > 0){
            sb.append(" and rname like ? ");
            params.add("%"+rname+"%");
        }

        sb.append(" limit ?,? "); // 分页条件
        sql = sb.toString();
        //添加参数
        params.add(start);
        params.add(pageSize);

        return template.query(sql, new BeanPropertyRowMapper<>(Route.class), params.toArray());
    }
}
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 前台代码

route_list.html页面

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>黑马旅游-搜索</title>
    <link rel="stylesheet" type="text/css" href="css/common.css">
    <link rel="stylesheet" href="css/search.css">
    <script src="js/jquery-3.3.1.js"></script>
    <script src="js/getParameter.js"></script>
    <script>
        $(function () {
            // let search = location.search;// 查询参数
            // //alert(search);// ?cid=5
            // // 切割字符串，拿到第二个值
            // let cid = search.split("=")[1];//截取
            // alert(cid);

            //获取cid的参数值
            let cid = getParameter("cid");
            let rname = getParameter("rname");
            //判断rname如果不为null或""
            if (rname){
                //url解码
                rname = window.decodeURIComponent(rname);
            }

            //当页码加载完成后，调用load方法，发送ajax请求加载数据
            laod(cid,null,rname);
        });

        function laod(cid,currentPage,rname) {
            //发送ajax请求，请求route/pageQuery,传递cid
            $.get("route/pageQuery",{cid:cid,currentPage:currentPage,rname:rname},function (pb) {
                //解析pageBean数据,展示到页面上

                //1.分页工具条数据展示
                //1.1展示总页码和总记录数
                $("#totalPage").html(pb.totalPage);
                $("#totalCount").html(pb.totalCount);

                /*
                            <li><a href="">首页</a></li>
                            <li class="threeword"><a href="#">上一页</a></li>
                            <li class="curPage"><a href="#">1</a></li><!-- curPage：当前页码 -->
                            <li><a href="#">2</a></li>
                            <li><a href="#">3</a></li>
                            <li><a href="#">4</a></li>
                            <li><a href="#">5</a></li>
                            <li><a href="#">6</a></li>
                            <li><a href="#">7</a></li>
                            <li><a href="#">8</a></li>
                            <li><a href="#">9</a></li>
                            <li><a href="#">10</a></li>
                            <li class="threeword"><a href="javascript:;">下一页</a></li>
                            <li class="threeword"><a href="javascript:;">末页</a></li>
                 */
                var lis = "";

                var frisPage = '<li onclick="javascipt:laod('+cid+',1,\''+rname+'\')"><a href="javascript:void(0)">首页</a></li>';

                //计算上一页的页码
                var beforeNum = pb.currentPage - 1;
                if (beforeNum <= 0){
                    beforeNum = 1;
                }
                var beforePage = '<li onclick="javascipt:laod('+cid+','+beforeNum+',\''+rname+'\')" class="threeword"><a>上一页</a></li>';

                lis += frisPage;
                lis += beforePage;
                //1.2展示分页页码
                /*
                    1.一共展示10个页码，能够达到前5后4的效果
                    2.如果前边不够5个，后边补齐10个
                    3.如果后边不足4个，前边补齐10个
                 */
                 // 定义开始位置begin，结束位置 end
                var begin;
                var end;

                //1.要显示10个页码
                if (pb.totalPage < 10){
                    //总页码不够10页
                    begin = 1;
                    end = pb.totalPage;
                }else {
                    //总页码超过10页
                    begin = pb.currentPage - 5;
                    end = pb.currentPage + 4;

                    //2.如果前边不够5个，后边补齐10个
                    if (begin < 1){
                        begin = 1;
                        end = begin + 9;
                    }

                    //3.如果后边不足4个，前边补齐10个
                    if (end > pb.totalPage){
                        end = pb.totalPage;
                        begin = end - 9;
                    }
                }

                for (let i = begin; i <= end; i++) {
                        var li;
                        //判断当前页码是否等于i
                        if (pb.currentPage == i){
                            li = '<li class="curPage" onclick="javascript:laod('+cid+','+i+')"><a href="javascript:vo(0)">'+i+'</a></li>';
                        }else {
                            //创建一个页面li
                            li = '<li onclick="javascript:laod('+cid+','+i+')"><a href="javascript:vo(0)">'+i+'</a></li>';
                        }

                        //拼接字符串
                        lis += li;
                }


                // //1.2展示分页页码
                // for (let i = 1; i <= pb.totalPage; i++) {
                //     var li;
                //     //判断当前页码是否等于i
                //     if (pb.currentPage == i){
                //         li = '<li class="curPage" onclick="javascript:laod('+cid+','+i+')"><a href="javascript:vo(0)">'+i+'</a></li>';
                //     }else {
                //         //创建一个页面li
                //         li = '<li onclick="javascript:laod('+cid+','+i+')"><a href="javascript:vo(0)">'+i+'</a></li>';
                //     }
                //
                //     //拼接字符串
                //     lis += li;
                // }

                //计算下一页的页码
                var afterNum = pb.currentPage + 1;
                if (afterNum > pb.totalPage){
                    afterNum = pb.totalPage;
                }

                var nextPage = '<li onclick="laod('+cid+','+afterNum+',\''+rname+'\')"><a href="javascript:void(0)">下一页</a></li>';

                var lastPage = '<li onclick="laod('+cid+','+pb.totalPage+',\''+rname+'\')" ><a href="javascript:void(0);">末页</a></li>';

                lis += nextPage;
                lis += lastPage;

                //将lis内容设置到ul页面中
                $("#pageNum").html(lis);

                /*
                        <li>
                            <div class="img"><img src="images/04-search_03.jpg" alt=""></div>
                            <div class="text1">
                                <p>【减100元 含除夕/春节出发】广州增城三英温泉度假酒店/自由行套票</p>
                                <br/>
                                <p>1-2月出发，网付立享￥1099/2人起！爆款位置有限，抢完即止！</p>
                            </div>
                            <div class="price">
                                <p class="price_num">
                                    <span>&yen;</span>
                                    <span>299</span>
                                    <span>起</span>
                                </p>
                                <p><a href="route_detail.html">查看详情</a></p>
                            </div>
                        </li>
                 */
                //2.列表数据展示 遍历输出
                var route_lis = "";

                for (let i = 0; i < pb.list.length; i++) {
                    //获取[rid:rname:"xxx"]
                    var route =  pb.list[i];

                    var li = '<li>\n' +
                        '    <div class="img"><img src="'+route.rimage+'" style="width: 299px;height: 169px"></div>\n' +
                        '    <div class="text1">\n' +
                        '        <p>'+route.rname+'</p>\n' +
                        '        <br/>\n' +
                        '        <p>'+route.routeIntroduce+'</p>\n' +
                        '    </div>\n' +
                        '    <div class="price">\n' +
                        '        <p class="price_num">\n' +
                        '            <span>&yen;</span>\n' +
                        '            <span>'+route.price+'</span>\n' +
                        '            <span>起</span>\n' +
                        '        </p>\n' +
                        '        <p>< a href="route_detail.html">查看详情</ a></p>\n' +
                        '    </div>\n' +
                        '</li>';
                    //拼接
                    route_lis += li;
                }

                $("#route").html(route_lis);

                //定位到页面顶部
                window.scrollTo(0,0);

            });
        }
    </script>

</head>
<body>
<!--引入头部-->
<div id="header"></div>
    <div class="page_one">
        <div class="contant">
            <div class="crumbs">
                <img src="images/search.png" alt="">
                <p>黑马旅行><span>搜索结果</span></p>
            </div>
            <div class="xinxi clearfix">
                <div class="left">
                    <div class="header">
                        <span>商品信息</span>
                        <span class="jg">价格</span>
                    </div>
                    <ul id="route">
                        <li>
                            <div class="img"><img src="images/04-search_03.jpg" alt=""></div>
                            <div class="text1">
                                <p>【减100元 含除夕/春节出发】广州增城三英温泉度假酒店/自由行套票</p>
                                <br/>
                                <p>1-2月出发，网付立享￥1099/2人起！爆款位置有限，抢完即止！</p>
                            </div>
                            <div class="price">
                                <p class="price_num">
                                    <span>&yen;</span>
                                    <span>299</span>
                                    <span>起</span>
                                </p>
                                <p><a href="route_detail.html">查看详情</a></p>
                            </div>
                        </li>
                        <li>
                            <div class="img"><img src="images/04-search_03.jpg" alt=""></div>
                            <div class="text1">
                                <p>浪花朵朵旅行普吉岛丛林飞跃空中飞人探险游中文服务泰国旅游</p>
                                <br/>
                                <p>1-2月出发，网付立享￥1099/2人起！爆款位置有限，抢完即止！</p>
                            </div>
                            <div class="price">
                                <p class="price_num">
                                    <span>&yen;</span>
                                    <span>899</span>
                                    <span>起</span>
                                </p>
                                <p><a href="route_detail.html">查看详情</a></p>
                            </div>
                        </li>
                        <li>
                            <div class="img"><img src="images/04-search_03.jpg" alt=""></div>
                            <div class="text1">
                                <p>黑妞皇家旅行普吉岛攀牙湾大船星光之旅皮划艇日落休闲特色体验</p>
                                <br/>
                                <p>1-2月出发，网付立享￥1099/2人起！爆款位置有限，抢完即止！</p>
                            </div>
                            <div class="price">
                                <p class="price_num">
                                    <span>&yen;</span>
                                    <span>999</span>
                                    <span>起</span>
                                </p>
                                <p><a href="route_detail.html">查看详情</a></p>
                            </div>
                        </li>
                        <li>
                            <div class="img"><img src="images/04-search_03.jpg" alt=""></div>
                            <div class="text1">
                                <p>浪花朵朵旅行普吉岛皇帝岛珊瑚岛香蕉船拖拽伞水上项目</p>
                                <br/>
                                <p>1-2月出发，网付立享￥1099/2人起！爆款位置有限，抢完即止！</p>
                            </div>
                            <div class="price">
                                <p class="price_num">
                                    <span>&yen;</span>
                                    <span>99</span>
                                    <span>起</span>
                                </p>
                                <p><a href="route_detail.html">查看详情</a></p>
                            </div>
                        </li>
                        <li>
                            <div class="img"><img src="images/04-search_03.jpg" alt=""></div>
                            <div class="text1">
                                <p>环游记 泰国清迈Lila massage女子监狱spa 丽菈泰式按摩马杀鸡</p>
                                <br/>
                                <p>1-2月出发，网付立享￥1099/2人起！爆款位置有限，抢完即止！</p>
                            </div>
                            <div class="price">
                                <p class="price_num">
                                    <span>&yen;</span>
                                    <span>199</span>
                                    <span>起</span>
                                </p>
                                <p><a href="route_detail.html">查看详情</a></p>
                            </div>
                        </li>
                        <li>
                            <div class="img"><img src="images/04-search_03.jpg" alt=""></div>
                            <div class="text1">
                                <p>【减100元 含除夕/春节出发】广州增城三英温泉度假酒店/自由行套票</p>
                                <br/>
                                <p>1-2月出发，网付立享￥1099/2人起！爆款位置有限，抢完即止！</p>
                            </div>
                            <div class="price">
                                <p class="price_num">
                                    <span>&yen;</span>
                                    <span>899</span>
                                    <span>起</span>
                                </p>
                                <p><a href="route_detail.html">查看详情</a></p>
                            </div>
                        </li>
                        <li>
                            <div class="img"><img src="images/04-search_03.jpg" alt=""></div>
                            <div class="text1">
                                <p>【减100元 含除夕/春节出发】广州增城三英温泉度假酒店/自由行套票</p>
                                <br/>
                                <p>1-2月出发，网付立享￥1099/2人起！爆款位置有限，抢完即止！</p>
                            </div>
                            <div class="price">
                                <p class="price_num">
                                    <span>&yen;</span>
                                    <span>1199</span>
                                    <span>起</span>
                                </p>
                                <p><a href="route_detail.html">查看详情</a></p>
                            </div>
                        </li>
                        <li>
                            <div class="img"><img src="images/04-search_03.jpg" alt=""></div>
                            <div class="text1">
                                <p>泰国芭提雅三合一日游芭提雅蒂芬妮人妖秀成人门票bigeye含接送</p>
                                <br/>
                                <p>1-2月出发，网付立享￥1099/2人起！爆款位置有限，抢完即止！</p>
                            </div>
                            <div class="price">
                                <p class="price_num">
                                    <span>&yen;</span>
                                    <span>1589</span>
                                    <span>起</span>
                                </p>
                                <p><a href="route_detail.html">查看详情</a></p>
                            </div>
                        </li>
                    </ul>
                    <div class="page_num_inf">
                        <i></i> 共
                        <span id="totalPage">12</span>页<span id="totalCount">132</span>条
                    </div>
                    <div class="pageNum">
                        <ul id="pageNum">
                            <li><a href="">首页</a></li>
                            <li class="threeword"><a href="#">上一页</a></li>
                            <li class="curPage"><a href="#">1</a></li><!-- curPage：当前页码 -->
                            <li><a href="#">2</a></li>
                            <li><a href="#">3</a></li>
                            <li><a href="#">4</a></li>
                            <li><a href="#">5</a></li>
                            <li><a href="#">6</a></li>
                            <li><a href="#">7</a></li>
                            <li><a href="#">8</a></li>
                            <li><a href="#">9</a></li>
                            <li><a href="#">10</a></li>
                            <li class="threeword"><a href="javascript:;">下一页</a></li>
                            <li class="threeword"><a href="javascript:;">末页</a></li>
                        </ul>
                    </div>
                </div>
                <div class="right">
                    <div class="top">
                        <div class="hot">HOT</div>
                        <span>热门推荐</span>
                    </div>
                    <ul>
                        <li>
                            <div class="left"><img src="images/04-search_09.jpg" alt=""></div>
                            <div class="right">
                                <p>清远新银盏温泉度假村酒店/自由行套...</p>
                                <p>网付价<span>&yen;<span>899</span>起</span>
                                </p>
                            </div>
                        </li>
                        <li>
                            <div class="left"><img src="images/04-search_09.jpg" alt=""></div>
                            <div class="right">
                                <p>清远新银盏温泉度假村酒店/自由行套...</p>
                                <p>网付价<span>&yen;<span>899</span>起</span>
                                </p>
                            </div>
                        </li>
                        <li>
                            <div class="left"><img src="images/04-search_09.jpg" alt=""></div>
                            <div class="right">
                                <p>清远新银盏温泉度假村酒店/自由行套...</p>
                                <p>网付价<span>&yen;<span>899</span>起</span>
                                </p>
                            </div>
                        </li>
                        <li>
                            <div class="left"><img src="images/04-search_09.jpg" alt=""></div>
                            <div class="right">
                                <p>清远新银盏温泉度假村酒店/自由行套...</p>
                                <p>网付价<span>&yen;<span>899</span>起</span>
                                </p>
                            </div>
                        </li>
                        <li>
                            <div class="left"><img src="images/04-search_09.jpg" alt=""></div>
                            <div class="right">
                                <p>清远新银盏温泉度假村酒店/自由行套...</p>
                                <p>网付价<span>&yen;<span>899</span>起</span>
                                </p>
                            </div>
                        </li>
                    </ul>
                </div>
            </div>
        </div>
    </div>

    <!--引入头部-->
    <div id="footer"></div>
    <!--导入布局js，共享header和footer-->
    <script type="text/javascript" src="js/include.js"></script>
</body>

</html>
复制代码

RouteServlet 

复制代码
package cn.itcast.travel.web.servlet;

import cn.itcast.travel.domain.PageBean;
import cn.itcast.travel.domain.Route;
import cn.itcast.travel.service.RouteService;
import cn.itcast.travel.service.impl.RouteServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/route/*")
public class RouteServlet extends BaseServlet{

    private RouteService routeService = new RouteServiceImpl();

    /**
     * 分页查询
     * @param request
     * @throws ServletException
     * @throws IOException
     */
    public void pageQuery(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //接收参数
        String currentPageStr = request.getParameter("currentPage");
        String pageSizeStr = request.getParameter("pageSize");
        String cidstr = request.getParameter("cid");

        //接收rname线路名称
        String rname = request.getParameter("rname");
        rname = new String(rname.getBytes("iso-8859-1"),"utf-8");

        int cid = 0;
        //2、处理参数
        if (cidstr != null && cidstr.length()>0 && "null".equals(cidstr)){
            cid = Integer.parseInt(cidstr);
        }
        int currentPage = 0;//当前页码，如果不传递，则默认为第一页
        if (currentPageStr!=null && currentPageStr.length()>0){
            currentPage = Integer.parseInt(currentPageStr);
        }else {
            currentPage = 1;
        }
        int pageSize = 0;//每页显示条数，如果不传递，默认每页显示5条记录
        if (pageSizeStr != null && pageSizeStr.length()==0){
            pageSize = Integer.parseInt(pageSizeStr);
        }else {
            pageSize = 5;
        }

        //3、调用service查询pageBean对象
        PageBean<Route> pb = routeService.pageQuery(cid, currentPage, pageSize,rname);

        System.out.println(pb);

        //4、将pageBean对象序列化为json，返回
        writeValue(pb,response);

    }
}
复制代码

 

posted @   monkey大佬  阅读(89)  评论(0)  编辑  收藏  举报
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