本文介绍了一个自定义分页组件的实现过程，包括commons.tld配置、Page类与NavigationTag类的定义，以及如何在JSP页面中使用这些组件来显示分页导航。此外，还展示了Controller和Service层的代码，用于处理分页查询和展示客户列表。
分页标签的使用
一.commons.tld
将这个文件复制到 项目的 WEB-INF 文件夹下
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
"http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>2.0</tlib-version>
<jsp-version>1.2</jsp-version>
<short-name>common</short-name>
<uri>http://igeek.com/common/</uri>
<display-name>Common Tag</display-name>
<description>Common Tag library</description>
<tag>
<name>page</name>
<tag-class>com.igeek.crm.utils.NavigationTag</tag-class>
<body-content>JSP</body-content>
<description>create navigation for paging</description>
<attribute>
<name>bean</name>
<rtexprvalue>true</rtexprvalue>
</attribute>
<attribute>
<name>number</name>
<rtexprvalue>true</rtexprvalue>
</attribute>
<attribute>
<name>url</name>
<required>true</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
</tag>
</taglib>
二.Page.java 类复制到工具文件夹utils下
package com.igeek.crm.utils;
import java.util.List;
public class Page<T> {
private int total;
private int page;
private int size;
private List<T> rows;
public int getTotal() {
return total;
}
public void setTotal(int total) {
this.total = total;
}
public int getPage() {
return page;
}
public void setPage(int page) {
this.page = page;
}
public int getSize() {
return size;
}
public void setSize(int size) {
this.size = size;
}
public List<T> getRows() {
return rows;
}
public void setRows(List<T> rows) {
this.rows = rows;
}
}
三.NavigationTag 类复制到工具文件夹utils下
package com.igeek.crm.utils;
import java.io.IOException;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;
import org.apache.taglibs.standard.tag.common.core.UrlSupport;
/**
* 显示格式 上一页 1 2 3 4 5 下一页
*/
public class NavigationTag extends TagSupport {
static final long serialVersionUID = 2372405317744358833L;
/**
* request 中用于保存Page<E> 对象的变量名,默认为“page”
*/
private String bean = "page";
/**
* 分页跳转的url地址,此属性必须
*/
private String url = null;
/**
* 显示页码数量
*/
private int number = 5;
@Override
public int doStartTag() throws JspException {
JspWriter writer = pageContext.getOut();
HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();
Page page = (Page)request.getAttribute(bean);
if (page == null)
return SKIP_BODY;
url = resolveUrl(url, pageContext);
try {
//计算总页数
int pageCount = page.getTotal() / page.getSize();
if (page.getTotal() % page.getSize() > 0) {
pageCount++;
}
writer.print("<nav><ul class=\"pagination\">");
//显示“上一页”按钮
if (page.getPage() > 1) {
String preUrl = append(url, "page", page.getPage() - 1);
preUrl = append(preUrl, "rows", page.getSize());
writer.print("<li><a href=\"" + preUrl + "\">上一页</a></li>");
} else {
writer.print("<li class=\"disabled\"><a href=\"#\">上一页</a></li>");
}
//显示当前页码的前2页码和后两页码
//若1 则 1 2 3 4 5, 若2 则 1 2 3 4 5, 若3 则1 2 3 4 5,
//若4 则 2 3 4 5 6 ,若10 则 8 9 10 11 12
int indexPage = (page.getPage() - 2 > 0)? page.getPage() - 2 : 1;
for(int i=1; i <= number && indexPage <= pageCount; indexPage++, i++) {
if(indexPage == page.getPage()) {
writer.print( "<li class=\"active\"><a href=\"#\">"+indexPage+"<span class=\"sr-only\">(current)</span></a></li>");
continue;
}
String pageUrl = append(url, "page", indexPage);
pageUrl = append(pageUrl, "rows", page.getSize());
writer.print("<li><a href=\"" + pageUrl + "\">"+ indexPage +"</a></li>");
}
//显示“下一页”按钮
if (page.getPage() < pageCount) {
String nextUrl = append(url, "page", page.getPage() + 1);
nextUrl = append(nextUrl, "rows", page.getSize());
writer.print("<li><a href=\"" + nextUrl + "\">下一页</a></li>");
} else {
writer.print("<li class=\"disabled\"><a href=\"#\">下一页</a></li>");
}
writer.print("</nav>");
} catch (IOException e) {
e.printStackTrace();
}
return SKIP_BODY;
}
private String append(String url, String key, int value) {
return append(url, key, String.valueOf(value));
}
/**
* 为url 参加参数对儿
*
* @param url
* @param key
* @param value
* @return
*/
private String append(String url, String key, String value) {
if (url == null || url.trim().length() == 0) {
return "";
}
if (url.indexOf("?") == -1) {
url = url + "?" + key + "=" + value;
} else {
if(url.endsWith("?")) {
url = url + key + "=" + value;
} else {
url = url + "&" + key + "=" + value;
}
}
return url;
}
/**
* 为url 添加翻页请求参数
*
* @param url
* @param pageContext
* @return
* @throws javax.servlet.jsp.JspException
*/
private String resolveUrl(String url, javax.servlet.jsp.PageContext pageContext) throws JspException{
//UrlSupport.resolveUrl(url, context, pageContext)
Map params = pageContext.getRequest().getParameterMap();
for (Object key:params.keySet()) {
if ("page".equals(key) || "rows".equals(key)) continue;
Object value = params.get(key);
if (value == null) continue;
if (value.getClass().isArray()) {
url = append(url, key.toString(), ((String[])value)[0]);
} else if (value instanceof String) {
url = append(url, key.toString(), value.toString());
}
}
return url;
}
/**
* @return the bean
*/
public String getBean() {
return bean;
}
/**
* @param bean the bean to set
*/
public void setBean(String bean) {
this.bean = bean;
}
/**
* @return the url
*/
public String getUrl() {
return url;
}
/**
* @param url the url to set
*/
public void setUrl(String url) {
this.url = url;
}
public void setNumber(int number) {
this.number = number;
}
}
4.页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page trimDirectiveWhitespaces="true"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="common" uri="http://igeek.com/common/"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>客户列表-BootCRM</title>
<!-- Bootstrap Core CSS -->
<link href="<%=basePath%>css/bootstrap.min.css" rel="stylesheet">
<!-- MetisMenu CSS -->
<link href="<%=basePath%>css/metisMenu.min.css" rel="stylesheet">
<!-- DataTables CSS -->
<link href="<%=basePath%>css/dataTables.bootstrap.css" rel="stylesheet">
<!-- Custom CSS -->
<link href="<%=basePath%>css/sb-admin-2.css" rel="stylesheet">
<!-- Custom Fonts -->
<link href="<%=basePath%>css/font-awesome.min.css" rel="stylesheet"
type="text/css">
<link href="<%=basePath%>css/boot-crm.css" rel="stylesheet"
type="text/css">
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div id="wrapper">
<!-- Navigation -->
<nav class="navbar navbar-default navbar-static-top" role="navigation"
style="margin-bottom: 0">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse"
data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span> <span
class="icon-bar"></span> <span class="icon-bar"></span> <span
class="icon-bar"></span>
</button>
<a class="navbar-brand" href="index.html">BOOT客户管理系统 v2.0</a>
</div>
<!-- /.navbar-header -->
<ul class="nav navbar-top-links navbar-right">
<li class="dropdown"><a class="dropdown-toggle"
data-toggle="dropdown" href="#"> <i class="fa fa-envelope fa-fw"></i>
<i class="fa fa-caret-down"></i>
</a>
<ul class="dropdown-menu dropdown-messages">
<li><a href="#">
<div>
<strong>令狐冲</strong> <span class="pull-right text-muted">
<em>昨天</em>
</span>
</div>
<div>今天晚上向大哥找我吃饭，讨论一下去梅庄的事...</div>
</a></li>
<li class="divider"></li>
<li><a class="text-center" href="#"> <strong>查看全部消息</strong>
<i class="fa fa-angle-right"></i>
</a></li>
</ul> <!-- /.dropdown-messages --></li>
<!-- /.dropdown -->
<li class="dropdown"><a class="dropdown-toggle"
data-toggle="dropdown" href="#"> <i class="fa fa-tasks fa-fw"></i>
<i class="fa fa-caret-down"></i>
</a>
<ul class="dropdown-menu dropdown-tasks">
<li><a href="#">
<div>
<p>
<strong>任务 1</strong> <span class="pull-right text-muted">完成40%</span>
</p>
<div class="progress progress-striped active">
<div class="progress-bar progress-bar-success"
role="progressbar" aria-valuenow="40" aria-valuemin="0"
aria-valuemax="100" style="width: 40%">
<span class="sr-only">完成40%</span>
</div>
</div>
</div>
</a></li>
<li class="divider"></li>
<li><a href="#">
<div>
<p>
<strong>任务 2</strong> <span class="pull-right text-muted">完成20%</span>
</p>
<div class="progress progress-striped active">
<div class="progress-bar progress-bar-info" role="progressbar"
aria-valuenow="20" aria-valuemin="0" aria-valuemax="100"
style="width: 20%">
<span class="sr-only">完成20%</span>
</div>
</div>
</div>
</a></li>
<li class="divider"></li>
<li><a class="text-center" href="#"> <strong>查看所有任务</strong>
<i class="fa fa-angle-right"></i>
</a></li>
</ul> <!-- /.dropdown-tasks --></li>
<!-- /.dropdown -->
<li class="dropdown"><a class="dropdown-toggle"
data-toggle="dropdown" href="#"> <i class="fa fa-bell fa-fw"></i>
<i class="fa fa-caret-down"></i>
</a>
<ul class="dropdown-menu dropdown-alerts">
<li><a href="#">
<div>
<i class="fa fa-comment fa-fw"></i> 新回复 <span
class="pull-right text-muted small">4分钟之前</span>
</div>
</a></li>
<li class="divider"></li>
<li><a href="#">
<div>
<i class="fa fa-envelope fa-fw"></i> 新消息 <span
class="pull-right text-muted small">4分钟之前</span>
</div>
</a></li>
<li class="divider"></li>
<li><a href="#">
<div>
<i class="fa fa-tasks fa-fw"></i> 新任务 <span
class="pull-right text-muted small">4分钟之前</span>
</div>
</a></li>
<li class="divider"></li>
<li><a href="#">
<div>
<i class="fa fa-upload fa-fw"></i> 服务器重启 <span
class="pull-right text-muted small">4分钟之前</span>
</div>
</a></li>
<li class="divider"></li>
<li><a class="text-center" href="#"> <strong>查看所有提醒</strong>
<i class="fa fa-angle-right"></i>
</a></li>
</ul> <!-- /.dropdown-alerts --></li>
<!-- /.dropdown -->
<li class="dropdown"><a class="dropdown-toggle"
data-toggle="dropdown" href="#"> <i class="fa fa-user fa-fw"></i>
<i class="fa fa-caret-down"></i>
</a>
<ul class="dropdown-menu dropdown-user">
<li><a href="#"><i class="fa fa-user fa-fw"></i> 用户设置</a></li>
<li><a href="#"><i class="fa fa-gear fa-fw"></i> 系统设置</a></li>
<li class="divider"></li>
<li><a href="login.html"><i class="fa fa-sign-out fa-fw"></i>
退出登录</a></li>
</ul> <!-- /.dropdown-user --></li>
<!-- /.dropdown -->
</ul>
<!-- /.navbar-top-links -->
<div class="navbar-default sidebar" role="navigation">
<div class="sidebar-nav navbar-collapse">
<ul class="nav" id="side-menu">
<li class="sidebar-search">
<div class="input-group custom-search-form">
<input type="text" class="form-control" placeholder="查询内容...">
<span class="input-group-btn">
<button class="btn btn-default" type="button">
<i class="fa fa-search" style="padding: 3px 0 3px 0;"></i>
</button>
</span>
</div> <!-- /input-group -->
</li>
<li><a href="customer.action" class="active"><i
class="fa fa-edit fa-fw"></i> 客户管理</a></li>
<li><a href="salevisit.action"><i
class="fa fa-dashboard fa-fw"></i> 客户拜访</a></li>
</ul>
</div>
<!-- /.sidebar-collapse -->
</div>
<!-- /.navbar-static-side --> </nav>
<div id="page-wrapper">
<div class="row">
<div class="col-lg-12">
<h1 class="page-header">客户管理</h1>
</div>
<!-- /.col-lg-12 -->
</div>
<!-- /.row -->
<div class="panel panel-default">
<div class="panel-body">
<form class="form-inline" action="${pageContext.request.contextPath }/list.action" method="post">
<div class="form-group">
<label for="customerName">客户名称</label>
<input type="text" class="form-control" id="customerName" value="${vo.custName }" name="custName">
</div>
<div class="form-group">
<label for="customerFrom">客户来源</label>
<select class="form-control" id="customerFrom" placeholder="客户来源" name="custSource">
<option value="0">--请选择--</option>
<c:forEach items="${fromType}" var="item">
<option value="${item.dict_id}"<c:if test="${item.dict_id == vo.custSource}"> selected</c:if>>${item.dict_item_name }</option>
</c:forEach>
</select>
</div>
<div class="form-group">
<label for="custIndustry">所属行业</label>
<select class="form-control" id="custIndustry" name="custIndustry">
<option value="0">--请选择--</option>
<c:forEach items="${industryType}" var="item">
<option value="${item.dict_id}"<c:if test="${item.dict_id == vo.custIndustry}"> selected</c:if>>${item.dict_item_name }</option>
</c:forEach>
</select>
</div>
<div class="form-group">
<label for="custLevel">客户级别</label>
<select class="form-control" id="custLevel" name="custLevel">
<option value="0">--请选择--</option>
<c:forEach items="${levelType}" var="item">
<option value="${item.dict_id}"<c:if test="${item.dict_id == vo.custLevel}"> selected</c:if>>${item.dict_item_name }</option>
</c:forEach>
</select>
</div>
<button type="submit" class="btn btn-primary">查询</button>
</form>
</div>
</div>
<div class="row">
<div class="col-lg-12">
<div class="panel panel-default">
<div class="panel-heading">客户信息列表</div>
<!-- /.panel-heading -->
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>ID</th>
<th>客户名称</th>
<th>客户来源</th>
<th>客户所属行业</th>
<th>客户级别</th>
<th>固定电话</th>
<th>手机</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${page.data}" var="row">
<tr>
<td>${row.cust_id}</td>
<td>${row.cust_name}</td>
<td>${row.cust_source}</td>
<td>${row.cust_industry}</td>
<td>${row.cust_level}</td>
<td>${row.cust_phone}</td>
<td>${row.cust_mobile}</td>
<td>
<a href="#" class="btn btn-primary btn-xs" data-toggle="modal" data-target="#customerEditDialog" onclick="editCustomer(${row.cust_id})">修改</a>
<a href="#" class="btn btn-danger btn-xs" onclick="deleteCustomer(${row.cust_id})">删除</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
<div class="col-md-12 text-right">
<common:page url="${pageContext.request.contextPath }/list.action?custName=${vo.custName }&custSource=${vo.custSource }" bean="page" number=""></common:page>
</div>
<!-- /.panel-body -->
</div>
<!-- /.panel -->
</div>
<!-- /.col-lg-12 -->
</div>
</div>
<!-- /#page-wrapper -->
</div>
<!-- 客户编辑对话框 -->
<div class="modal fade" id="customerEditDialog" tabindex="-1" role="dialog"
aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<h4 class="modal-title" id="myModalLabel">修改客户信息</h4>
</div>
<div class="modal-body">
<form class="form-horizontal" id="edit_customer_form">
<input type="hidden" id="edit_cust_id" name="cust_id"/>
<div class="form-group">
<label for="edit_customerName" class="col-sm-2 control-label">客户名称</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="edit_customerName" placeholder="客户名称" name="cust_name">
</div>
</div>
<div class="form-group">
<label for="edit_customerFrom" style="float:left;padding:7px 15px 0 27px;">客户来源</label>
<div class="col-sm-10">
<select class="form-control" id="edit_customerFrom" placeholder="客户来源" name="cust_source">
<option value="">--请选择--</option>
<c:forEach items="${fromType}" var="item">
<option value="${item.dict_id}"<c:if test="${item.dict_id == custSource}"> selected</c:if>>${item.dict_item_name }</option>
</c:forEach>
</select>
</div>
</div>
<div class="form-group">
<label for="edit_custIndustry" style="float:left;padding:7px 15px 0 27px;">所属行业</label>
<div class="col-sm-10">
<select class="form-control" id="edit_custIndustry" name="cust_industry">
<option value="">--请选择--</option>
<c:forEach items="${industryType}" var="item">
<option value="${item.dict_id}"<c:if test="${item.dict_id == custIndustry}"> selected</c:if>>${item.dict_item_name }</option>
</c:forEach>
</select>
</div>
</div>
<div class="form-group">
<label for="edit_custLevel" style="float:left;padding:7px 15px 0 27px;">客户级别</label>
<div class="col-sm-10">
<select class="form-control" id="edit_custLevel" name="cust_level">
<option value="">--请选择--</option>
<c:forEach items="${levelType}" var="item">
<option value="${item.dict_id}"<c:if test="${item.dict_id == custLevel}"> selected</c:if>>${item.dict_item_name }</option>
</c:forEach>
</select>
</div>
</div>
<div class="form-group">
<label for="edit_linkMan" class="col-sm-2 control-label">联系人</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="edit_linkMan" placeholder="联系人" name="cust_linkman">
</div>
</div>
<div class="form-group">
<label for="edit_phone" class="col-sm-2 control-label">固定电话</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="edit_phone" placeholder="固定电话" name="cust_phone">
</div>
</div>
<div class="form-group">
<label for="edit_mobile" class="col-sm-2 control-label">移动电话</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="edit_mobile" placeholder="移动电话" name="cust_mobile">
</div>
</div>
<div class="form-group">
<label for="edit_zipcode" class="col-sm-2 control-label">邮政编码</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="edit_zipcode" placeholder="邮政编码" name="cust_zipcode">
</div>
</div>
<div class="form-group">
<label for="edit_address" class="col-sm-2 control-label">联系地址</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="edit_address" placeholder="联系地址" name="cust_address">
</div>
</div>
</form>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
<button type="button" class="btn btn-primary" onclick="updateCustomer()">保存修改</button>
</div>
</div>
</div>
</div>
<!-- /#wrapper -->
<!-- jQuery -->
<script src="<%=basePath%>js/jquery.min.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="<%=basePath%>js/bootstrap.min.js"></script>
<!-- Metis Menu Plugin JavaScript -->
<script src="<%=basePath%>js/metisMenu.min.js"></script>
<!-- DataTables JavaScript -->
<script src="<%=basePath%>js/jquery.dataTables.min.js"></script>
<script src="<%=basePath%>js/dataTables.bootstrap.min.js"></script>
<!-- Custom Theme JavaScript -->
<script src="<%=basePath%>js/sb-admin-2.js"></script>
<script type="text/javascript">
function editCustomer(id) {
$.ajax({
type:"get",
url:"<%=basePath%>customer/edit.action",
data:{"id":id},
success:function(data) {
$("#edit_cust_id").val(data.cust_id);
$("#edit_customerName").val(data.cust_name);
$("#edit_customerFrom").val(data.cust_source)
$("#edit_custIndustry").val(data.cust_industry)
$("#edit_custLevel").val(data.cust_level)
$("#edit_linkMan").val(data.cust_linkman);
$("#edit_phone").val(data.cust_phone);
$("#edit_mobile").val(data.cust_mobile);
$("#edit_zipcode").val(data.cust_zipcode);
$("#edit_address").val(data.cust_address);
}
});
}
function updateCustomer() {
$.post("<%=basePath%>customer/update.action",$("#edit_customer_form").serialize(),function(data){
alert("客户信息更新成功！");
window.location.reload();
});
}
function deleteCustomer(id) {
if(confirm('确实要删除该客户吗?')) {
$.post("<%=basePath%>customer/delete.action",{"id":id},function(data){
alert("客户删除更新成功！");
window.location.reload();
});
}
}
</script>
</body>
</html>
commons.tld
页面加入控制按钮标签
后台controller：
package com.igeek.crm.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import com.igeek.crm.pager.Pager;
import com.igeek.crm.pojo.BaseDict;
import com.igeek.crm.pojo.Customer;
import com.igeek.crm.pojo.QueryVo;
import com.igeek.crm.service.BaseDictService;
import com.igeek.crm.service.CustomerService;
/**
* @author www.igeehome.com
*
* TODO
*
* 2018年10月31日下午6:42:05
*/
@Controller
public class CustomerController {
@Value("${CUSTOMER_FROM_TYPE}")
private String CUSTOMER_FROM_TYPE;// =002
@Value("${CUSTOMER_INDUSTRY_TYPE}")
private String CUSTOMER_INDUSTRY_TYPE;// =001
@Value("${CUSTOMER_LEVEL_TYPE}")
private String CUSTOMER_LEVEL_TYPE;// =006
@Autowired
private BaseDictService baseDictService;
@Autowired
private CustomerService customerService;
@RequestMapping("/list")
public String queryCustomerList(QueryVo vo,Model model) {
int page = 1;
int size = 10;
// 查询客户信息来源
List<BaseDict> fromType = baseDictService.queryByDictCode(CUSTOMER_FROM_TYPE);
// 将数据添加到model中
model.addAttribute("fromType", fromType);
// 查询客户所属行业
List<BaseDict> industryType = baseDictService.queryByDictCode(CUSTOMER_INDUSTRY_TYPE);
// 将数据添加到model中
model.addAttribute("industryType", industryType);
// 查询客户所属行业
List<BaseDict> levelType = baseDictService.queryByDictCode(CUSTOMER_LEVEL_TYPE);
// 将数据添加到model中
model.addAttribute("levelType", levelType);
//查询客户列表
// if(vo==null){
// vo = new QueryVo();
// }
Pager<Customer> pager = customerService.queryByPage( vo);
//将pager放入model
model.addAttribute("page", pager);
//将查询条件再次放入model
//model.addAttribute("custName", vo.getCustName());
model.addAttribute("vo", vo);
return "customer";
}
}
业务层：
package com.igeek.crm.service.impl;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.igeek.crm.mapper.CustomerMapper;
import com.igeek.crm.pager.Pager;
import com.igeek.crm.pojo.Customer;
import com.igeek.crm.pojo.QueryVo;
import com.igeek.crm.service.CustomerService;
/**
* @author www.igeehome.com
*
* TODO
*
* 2018年10月31日下午7:52:04
*/
@Service
public class CustomerServiceImpl implements CustomerService {
@Autowired
private CustomerMapper mapper;
@Override
public Pager<Customer> queryByPage(QueryVo vo) {
Pager<Customer> pager = new Pager<>();
List<Customer> list = mapper.queryByPage(vo);
//查询总条数
int total = mapper.getTotal(vo);
//计算最大页码
int maxPageNum = (int)Math.ceil(total*1.0/vo.getSize());
pager.setData(list);
pager.setMaxPageNum(maxPageNum);
pager.setPage(vo.getPage());
pager.setRows(vo.getSize());
pager.setTotal(total);
return pager;
}
}
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