easy_UI 投票列表

时间：2022-06-09 08:18:47

首先我们考虑一下在项目投票种用到的属性(ID,投票标题,备选项目,参与人数)

entity

package cn.entity;

public class GridNode {

    private Long id;

    private String title;

    private Integer type ;

    private String version;

    private String options;

    private String participants;

    public Long getId() {

        return id;

    }

    public void setId(Long id) {

        this.id = id;

    }

    public String getTitle() {

        return title;

    }

    public void setTitle(String title) {

        this.title = title;

    }

    public String getVersion() {

        return version;

    }

    public void setVersion(String version) {

        this.version = version;

    }

    public String getOptions() {

        return options;

    }

    public void setOptions(String options) {

        this.options = options;

    }

    public String getParticipants() {

        return participants;

    }

    public void setParticipants(String participants) {

        this.participants = participants;

    }

    public GridNode() {

        super();

        // TODO Auto-generated constructor stub

    }

    public GridNode(Long id, String title, Integer type, String options,

            String participants) {

        super();

        this.id = id;

        this.title = title;

        this.type = type;

        this.options = options;

        this.participants = participants;

    }

    public GridNode(Long id, String title, String options, String participants) {

        super();

        this.id = id;

        this.title = title;

        this.options = options;

        this.participants = participants;

    }

    public Integer getType() {

        return type;

    }

    public void setType(Integer type) {

        this.type = type;

    }

}

编写sl7.jsp(实现基础及配置)

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<base href="<%=basePath%>">

<title>My JSP 'sl7.jsp' starting page</title>

<link rel="stylesheet" type="text/css" href="<%=path%>/easyUI/themes/default/easyui.css">

<link rel="stylesheet" type="text/css" href="<%=path%>/easyUI/themes/icon.css">

<link rel="stylesheet" type="text/css" href="<%=path%>/easyUI/css/demo.css">

<script src="<%=path%>/js/jquery-1.8.3.js"></script>

<script src="<%=path%>/js/jquery.easyui.min.js"></script>

<script>

$(function(){

$('#dg').datagrid({    //远程请求数据的url路径

url:'<%=path%>/SL/sl7_server.jsp',

pagination:true, //显示底部分页栏

pageSize:5,    //默认每页记录数

pageList:[5,10,15], //显示列表记录数的下拉框选项

columns:[[

{field:'ck',checkbox:true},

{field:'title',title:'投票标题',width:408},

{field:'options',title:'备选项数',width:60,align:'center'},

{field:'participants',title:'参与人数',styler:myStyler}

]],

singleSelect:true,

rownumbers:true,

iconCls: 'icon-search',

fitColumns:true,//自适应宽度，防止水平滚动

striped:true,//隔行变色

loadMsg:"正努力为您加载中......"

});

});

function myStyler(value,row,index){

if (value < 5){

return 'background-color:#ffee00;color:red;';

}else if(value > 15){

return 'color:green;';

}

}

</script>

</head>

<body>

<table id="dg" title="投票列表" class="easyui-grid" style="width:700px;height:215px"></table>

</body>

</html>

编写josn(添加数据与分页页数的配置)

<%@ page language="java" import="java.util.*,cn.entity.*" pageEncoding="utf-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<%

List<GridNode> list = new ArrayList<GridNode>();

list.add(new GridNode(1L,"选出你心目中最好的下载工具","2","6"));

list.add(new GridNode(2L,"选出你心目中最好的输入法","5","4"));

list.add(new GridNode(3L,"选出你心目中最好的浏览器","5","11"));

list.add(new GridNode(4L,"选出你心目中最好的杀毒软件","6","4"));

list.add(new GridNode(5L,"选出你心目中最好的社交软件","3","14"));

list.add(new GridNode(6L,"选出你心目中最好的聊天工具","3","2"));

list.add(new GridNode(7L,"选出你心目中最好的翻译软件","5","0"));

list.add(new GridNode(8L,"选出你心目中最好的播放器","2","23"));

list.add(new GridNode(9L,"选出你心目中最好的免费软件","4","7"));

list.add(new GridNode(10L,"选出你心目中最好的录音软件","4","18"));

list.add(new GridNode(11L,"选出你心目中最好的刷机软件","5","6"));

//获取客户端传递的分页参数 默认参数rows表示每页显示记录条数， 默认参数page表示当前页数

Integer pageSize = Integer.parseInt(request.getParameter("rows"));

Integer pageNumber = Integer.parseInt(request.getParameter("page"));

StringBuilder builder = new StringBuilder("{\"total\":"+list.size()+",\"rows\":[");

int start = (pageNumber-1) * pageSize;//计算开始记录数

int end = start+pageSize;//计算结束记录数

for(int i=start;i<end && i<list.size();i++){

GridNode gn = list.get(i);

builder.append("{\"id\":\""+gn.getId()+"\",\"title\":\""+gn.getTitle()+"\",\"options\":"+gn.getOptions()+",\"participants\":"+gn.getParticipants()+"},");

}

String gridJSON = builder.toString();

if(gridJSON.endsWith(",")){

gridJSON = gridJSON.substring(0,gridJSON.lastIndexOf(","));

}

out.print(gridJSON+"]}");

%>

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