jquery-easyUI第二篇【综合案例】

时间 2019-11-21

原文原文链接

基于easyUI开发的一个综合案例模版

<%@ page language="java" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>练习</title>

    <!-- 引入css文件，不限顺序 -->
    <link rel="stylesheet" href="${pageContext.request.contextPath}/themes/default/easyui.css" type="text/css"></link>
    <link rel="stylesheet" href="${pageContext.request.contextPath}/themes/icon.css" type="text/css"></link>

    <!-- 引入js文件，有顺序限制 -->
    <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery.min.js"></script>
    <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery.easyui.min.js"></script>
    <script type="text/javascript" src="${pageContext.request.contextPath}/js/easyui-lang-zh_CN.js"></script>

  </head>
  <body>

        <!-- Layout布局 -->
        <div id="layoutID" style="width:700px;height:500px" class="easyui-layout" data-options="fit:true">

            <!-- 北 -->
            <div data-options="region:'north',border:true,iconCls:'icon-remove',collapsible:true" style="height:100px;">
                <center><font style="font-size:66px">jQuery-EasyUI组件</font></center>            
            </div>   

            <!-- 南 -->
            <div data-options="region:'south'" style="height:100px;">
                <center><font style="font-size:33px">XX公司版权全部</font></center>           
            </div>   

            <!-- 东 -->
            <div data-options="region:'east',iconCls:'icon-reload'" style="width:100px;"></div>   

            <!-- 西 -->
            <div data-options="region:'west'" style="width:200px;">
                <!-- Accordion分类 -->
                <div id="accordionID" class="easyui-accordion" data-options="fit:true,border:false,selected:-1" style="width:300px;height:400px;">   
                    <div title="部门管理" data-options="iconCls:'icon-save'" style="padding:10px;">   
                        <!-- Linkbutton按钮 -->
                        <a id="btn_add" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-add'">增长部门</a><p> 
                        <a id="btn_find" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-search'">查询部门</a><p> 
                        <a id="btn_update" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-edit'">修改部门</a><p> 
                        <a id="btn_delete" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-remove'">删除部门</a><p>  
                    </div>   
                    <div title="人事管理" data-options="iconCls:'icon-reload'" style="padding:10px;">   
                        <!-- tree树 -->              
                        <ul id="treeID" class="easyui-tree" data-options="lines:true">   
                           <li>
                                <span>增长人事</span>
                           </li>
                           <li>
                                <span>查询人事</span>
                                <ul>
                                    <li>
                                        <span>分页查询人事</span>
                                        <ul>
                                            <li>
                                                <span>模糊分页查询人事</span>
                                            </li>
                                            <li>
                                                <span>精确分页查询人事</span>
                                            </li>
                                        </ul>
                                    </li>
                                    <li>
                                        <span>查询全部人事</span>
                                    </li>
                                </ul>
                           </li>
                        </ul>
                    </div>   
                    <div title="客户管理" data-options="iconCls:'icon-reload'" style="padding:10px;">   
                        客户管理    
                    </div> 
                    <div title="权限管理" data-options="iconCls:'icon-reload'" style="padding:10px;">   
                        权限管理    
                    </div>
                    <div title="报表管理" data-options="iconCls:'icon-print'" style="padding:10px;">   
                        报表管理    
                    </div> 
                    <div title="帮助" data-options="iconCls:'icon-help'" style="padding:10px;">   
                        帮助    
                    </div>  
                </div>
            </div>   

            <!-- 中 -->
            <div data-options="region:'center'" style="padding:5px;background:#eee;">
                <!-- Tabs选项卡 -->
                <div id="tabsID" class="easyui-tabs" style="width:500px;height:250px;" data-options="plain:true,border:false,selected:-1,fit:true">   
                </div>
            </div>   

        </div>

        <script type="text/javascript"> //定位4个按钮 $("a").click(function(){ //获取你所单击的按钮的标题 var title = $(this).text(); //去空格 title = $.trim(title); //若是title变量是"增长部门" if("增长部门" == title){ //查看该选项卡是否已经打开 var flag = $("#tabsID").tabs("exists",title); //若是未打开 if(!flag){ //打开选项卡 $("#tabsID").tabs("add",{ "title" : title, "closable" : true, "content" : "文本", "iconCls" : "icon-add" }); } }else if("查询部门" == title){ var flag = $("#tabsID").tabs("exists",title); if(!flag){ //打开选项卡 $("#tabsID").tabs("add",{ "title" : title, "closable" : true, "content" : "文本", "iconCls" : "icon-search" }); } } }); </script>
        <script type="text/javascript"> $(function(){ //收起全部的选项 $("#treeID").tree("collapseAll"); }); </script>
        <script type="text/javascript"> $("#treeID").tree({ onClick : function(node){ //获取点击树节点的文本 var title = node.text; //去空格 title = $.trim(title); //产生tab选项卡 var flag = $("#tabsID").tabs("exists",title); //若是没有打开的话 if(!flag){ //打开选项卡 $("#tabsID").tabs("add",{ "title" : title, "closable" : true, "href" : "${pageContext.request.contextPath}/empList.jsp", "iconCls" : "icon-search" }); } } }); </script>

  </body>
</html>

效果：

分页

相信咱们的分页已经作得很多了，此次咱们使用easyUI+Oracle+jdbc来作一个分页…【以前大都都用Mysql，此次用Oracle】javascript

DateGrid会异步以POST方式向服务器传入二个参数：page和rows二个参数，服务端须要哪一个，就接收哪一个参数css

page：须要显示的页号
rows：须要获取多少条记录

编写emp实体

package zhongfucheng.entity;

import java.io.Serializable;
import java.util.Date;

/** * Created by ozc on 2017/7/17. */
public class Emp implements Serializable {

    private Integer empno;
    private String ename;
    private String job;
    private Integer mgr;
    private Date hiredate;
    private Integer sal;
    private Integer comm;
    private Integer deptno;

    public Emp() {
    }

    public Emp(Integer empno, String ename, String job, Integer mgr, Date hiredate, Integer sal, Integer comm, Integer deptno) {
        this.empno = empno;
        this.ename = ename;
        this.job = job;
        this.mgr = mgr;
        this.hiredate = hiredate;
        this.sal = sal;
        this.comm = comm;
        this.deptno = deptno;
    }

    public Integer getEmpno() {
        return empno;
    }

    public void setEmpno(Integer empno) {
        this.empno = empno;
    }

    public String getEname() {
        return ename;
    }

    public void setEname(String ename) {
        this.ename = ename;
    }

    public String getJob() {
        return job;
    }

    public void setJob(String job) {
        this.job = job;
    }

    public Integer getMgr() {
        return mgr;
    }

    public void setMgr(Integer mgr) {
        this.mgr = mgr;
    }

    public Date getHiredate() {
        return hiredate;
    }

    public void setHiredate(Date hiredate) {
        this.hiredate = hiredate;
    }

    public Integer getSal() {
        return sal;
    }

    public void setSal(Integer sal) {
        this.sal = sal;
    }

    public Integer getComm() {
        return comm;
    }

    public void setComm(Integer comm) {
        this.comm = comm;
    }

    public Integer getDeptno() {
        return deptno;
    }

    public void setDeptno(Integer deptno) {
        this.deptno = deptno;
    }
}

编写EmpDao

使用Oracle的语法来实现分页…!html

public class EmpDao {
    public  int getPageRecord() throws SQLException {
        QueryRunner queryRunner = new QueryRunner(JDBCUtils.getDataSource());
        String sql = "SELECT COUNT(EMPNO) FROM EMP";
        String count = queryRunner.query(sql, new ScalarHandler()).toString();
        return Integer.parseInt(count);
    }
    public  List<Emp> getList(int start, int end) throws SQLException {
        QueryRunner queryRunner = new QueryRunner(JDBCUtils.getDataSource());

        String sql = "SELECT *FROM (SELECT rownum rownumid,emp.* FROM emp WHERE rownum <= ?) xx WHERE xx.rownumid> ?";

        List<Emp> list = (List<Emp>) queryRunner.query(sql, new Object[]{end, start}, new BeanListHandler(Emp.class));
        return list;
    }
}

编写EmpService

获得对应的分页数据，封装到分页对象中！java

public class EmpService {


    private EmpDao empDao = new EmpDao();
    public Page getPageResult(int currentPage) throws Exception {

        Page page = new Page(currentPage, empDao.getPageRecord());
        List<Emp> empList = empDao.getList(page.getStartIndex(), page.getLinesize() * currentPage);
        page.setList(empList);
        return page;
    }

}

处理请求的Servlet

接收page参数，若是为空，就设置为1node

把获得的分页数据封装成datagrid要的格式，返回给浏览器！jquery

protected void doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, IOException {

        try {
            //调用service
            EmpService empService = new EmpService();

            //设置编号方式
            request.setCharacterEncoding("UTF-8");

        /*获取客户端传递进来的参数，easyUI使用的是page参数*/
            String pageStart = request.getParameter("page");

            if (pageStart == null || pageStart.length() == 0) {
                pageStart = "1";
            }
            int currentPage = Integer.parseInt(pageStart);
            Page pageResult = empService.getPageResult(currentPage);

            Map map = new HashMap();

            map.put("total", pageResult.getTotalRecord());
            map.put("rows", pageResult.getList());


            //使用第三方工具将map转成json文本
            JSONArray jsonArray = JSONArray.fromObject(map);
            String jsonJAVA = jsonArray.toString();

            //去掉二边的空格
            jsonJAVA = jsonJAVA.substring(1,jsonJAVA.length()-1);
            System.out.println("jsonJAVA=" + jsonJAVA);

            //以字符流的方式，将json字符串输出到客户端
            response.setContentType("text/html;charset=UTF-8");
            PrintWriter pw = response.getWriter();
            pw.write(jsonJAVA);
            pw.flush();
            pw.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

JSP页面显示

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>

    <title>dataGrid+分页</title>
    <link rel="stylesheet" type="text/css" href="easyui/themes/default/easyui.css">
    <link rel="stylesheet" type="text/css" href="easyui/themes/icon.css">
    <script type="text/javascript" src="easyui/jquery.min.js"></script>
    <script type="text/javascript" src="easyui/jquery.easyui.min.js"></script>
    <script type="text/javascript" src="${pageContext.request.contextPath}/js/easyui-lang-zh_CN.js"></script>
  </head>
  <body>

  <table id="dg" style="width: 800px" ></table>
  <script> $('#dg').datagrid({ url:'${pageContext.request.contextPath}/getPageServlet?time'+ new Date().getTime(), columns:[[ /*这里的field要对应JavaBean的属性名称，不然获取不到数据*/ {field:'empno',title:'编号',width:100}, {field:'ename',title:'姓名',width:100}, {field:'job',title:'工做',width:100}, {field:'mgr',title:'上编',width:100}, {field:'hiredate',title:'入时',width:100}, {field:'sal',title:'月薪',width:100}, {field:'comm',title:'佣金',width:100}, {field:'deptno',title:'部编',width:100} ]], fitColumns : true, singleSelect : true, pagination : true, /*pageSize对应rows，pageNum对应page，datagrid会自动把这两个值传递进去*/ pageNumber : 1, pageSize : 3, pageList : [3], fit:true }); </script>

  </body>
</html>

效果：

1. jquery-easyUI第二篇【综合案例】
2. jquery easyUI第二篇【综合案例】
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7. Shell 综合案例
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9. set集合综合案例
10. 第三章继承的综合案例
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