ligerui_实际项目_003：form中添加数据，表格(grid)里面显示，最后将表格(grid)里的数据提交到servlet

实现效果：

"Form"中填写数据，向本页"Grid"中添加数据，转换成Json数据提交，计算总和，Grid文本框可编辑，排序

图片效果：

总结：

//display属性：
　　　　　　editor：grid表格可以编辑其类容：
//select类型：select+render实现选择填充效果
　　　　　　　editor:{
　　　　　　　　　　type:"select",
　　　　　　　　　　data:[{id:"",text:"品牌一"},{id:"",text:"品牌二"}],
　　　　　　　　　　valueField :"id",
　　　　　　　　　　textField:"text"
 　　　　　　}
　　　　　　　render:function(item){

                if(item.pBrand=='1'){
                     return "品牌一";
                }else{
                    return "品牌二";
                }
            }

//display属性:
//String类型：
　　　　　　editor:{
　　　　　　　　type:"string"
　　　　　　}

//display属性：
 //render：改变显示值
                    render:function(item){
                        if(item.pBrand==''){
                            return "品牌一";
                        }else{
                            return "品牌二";
                        }
                    }

//display属性：
//totalSummary：计算总数量
　　　　　　　　　//先添加：“合计”这两个字
　　　　　　　　　{display:"配件型号",name:"pModel",isAllowHide:false,align:"left",width:140,
                    editor:{type:"string"} ,
                    totalSummary:{
                        render:function(){
                            return "<span id='heji'>合计:</span>";
                        },
                        align:"right"
                    }
                },

　　　　//合计数量
　　　　{display:"数量",name:"nums",type:"int",isAllowHide:false,align:"left",width:80,
　　　　　　editor:{type:"spinner"},
　　　　　　totalSummary:{
　　　　　　//type:'sum,count,max,min,avg'
　　　　　　render:function(suminf,column){
　　　　　　return "<span style='color:red'>数量："+suminf.sum+"</span>";
　　　　　　　　}
　　　　　　}
　　　　},

{
    display: '序号',         //表头列显示的文本,支持html
    //表头内容自定义函数
    headerRender: function (column) {
        return "<b>" + column.display + "</b>";
    },
    name: 'id',              //单元格映射的行数据属性
    align: 'center',           //单元格内容对齐方式:left/center/right
    hide: false,             //是否隐藏
    width: 100,              //列的宽度
    minWidth: 50,            //列的最小宽度
    isSort: true,            //是否允许此列排序,默认为允许排序
    isAllowHide: true,       //是否允许隐藏,如果允许，将会出现在【显示/隐藏列右键菜单】
    type: 'string',          //类型,用于排序
    //自定义单元格渲染器
    render : function (record, rowindex, value, column) {
        //this     这里指向grid
        //record   行数据
        //rowindex 行索引
        //value    当前的值，对应record[column.name]
        //column   列信息
        return value;  //返回此单元格显示的HTML内容(一般根据value和row的内容进行组织)
    },
    //列汇总
    totalSummary: {
        align: 'center',   //汇总单元格内容对齐方式:left/center/right
        type: 'count',     //汇总类型sum,max,min,avg ,count。可以同时多种类型
        render: function (e) {  //汇总渲染器，返回html加载到单元格
            //e 汇总Object(包括sum,max,min,avg,count)
            return "<div>总数：" + e.count + "</div>";
        }
    },
    //单元格编辑器
    editor: {
        type: 'text'
    },
    //多表头支持
    columns: null
},

//自动排序效果：
g=$("#maingrid").ligerGrid({
    usePage:true;//排序，浏览器排序
});

//计算“数量*价格”
//利用totalSummary：不同列，相乘
                {display:"数量",name:"nums",type:"int",isAllowHide:false,align:"left",width:80,
                    editor:{type:"spinner"},
                    totalSummary:{
                        //type:'sum,count,max,min,avg'
                        render:function(suminf,column){
                            return "<span style='color:red'>数量："+suminf.sum+"</span>";
                        }
                    }
                },
                {display:"单价",name:"price",type:"float",isAllowHide:false,editor:{type:"float",minValue:"0"},
                    align:"left",width:80,
                    render:function(item){
                        return formatCurrency(item.price);
                    }
                },
                {display:"金额",name:"numsPrice",type:"float",isAllowHide:false,
                    align:"left",width:90,
                    render:function(item){
                        var money = item.nums*item.price;
                        return formatCurrency(money);
                    },
                    totalSummary:{
                        render:function(suminf,column){
                            return "<span id='totalPrice'>"+formatCurrency(suminf.sum)+"</span>";
                        },
                        algin:"left"
                    }
                },

//客户端封装成Json字符串数组，提交，可减少服务器压力
        function doSave(){
            var data= g.getData();
            $("#jsonStr").val(JSON.stringify(data));
            alert("Json字符串："+JSON.stringify(data));
            $("form").submit();
        }

实现代码：

1：编写PO类：

package com.west.study.servlet;
/**01：创建PO类*/
public class Person {
    private String pname;
    private String pBrand;
    private String pModel;
    private String nums;
    private String price;
    private String numsPrice;
    private String remarks;

    public String getPname() {
        return pname;
    }
    public void setPname(String pname) {
        System.out.println("setPname"+pname);
        this.pname = pname;
    }
    public String getpBrand() {
        return pBrand;
    }
    public void setpBrand(String pBrand) {
        this.pBrand = pBrand;
    }
    public String getpModel() {
        return pModel;
    }
    public void setpModel(String pModel) {
        this.pModel = pModel;
    }
    public String getNums() {
        return nums;
    }
    public void setNums(String nums) {
        this.nums = nums;
    }
    public String getPrice() {
        return price;
    }
    public void setPrice(String price) {
        this.price = price;
    }
    public String getNumsPrice() {
        return numsPrice;
    }
    public void setNumsPrice(String numsPrice) {
        this.numsPrice = numsPrice;
    }
    public String getRemarks() {
        return remarks;
    }
    public void setRemarks(String remarks) {
        this.remarks = remarks;
    }
}

2：编写界面：grid_edit.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title></title>
       <link href="<%=request.getContextPath()%>/ui/lib/ligerUI/skins/Aqua/css/ligerui-all.css" rel="stylesheet" type="text/css">
    <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/jquery/jquery-1.3.2.min.js"></script>
    <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/core/base.js"></script>
    <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/plugins/ligerGrid.js"></script>
      <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/plugins/ligerTextBox.js"></script>
      <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/plugins/ligerDateEditor.js"></script>
      <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/plugins/ligerForm.js"></script>
      <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/plugins/ligerComboBox.js"></script>
      <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/plugins/ligerSpinner.js"></script>
      <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/plugins/ligerDrag.js"></script>
      <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/plugins/ligerResizable.js"></script>
      <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/ligerUI/js/plugins/ligerGrid.js"></script>
      <script type="text/javascript" src="<%=request.getContextPath()%>/ui/lib/json2.js"></script>
      <script type="text/javascript">
          $(function(){

              $("form").ligerForm();

              g=$("#maingrid").ligerGrid({
                columns:[
                {display:"配件名称",name:"pName",isAllowHide:false,align:"left",width:140,
                    editor:{type:"string"}
                },
                {display:"配件品牌",name:"pBrand",isAllowHide:false,align:"left",width:120,
                    editor:{
                        type:"select",
                        data:[{id:"1",text:"品牌一"},{id:"2",text:"品牌二"}],
                        valueField :"id",
                        textField:"text"
                    },
                    render:function(item){
                        if(item.pBrand=='1'){
                            return "品牌一";
                        }else{
                            return "品牌二";
                        }
                    }
                },
                {display:"配件型号",name:"pModel",isAllowHide:false,align:"left",width:140,
                    editor:{type:"string"}
                    ,
                    totalSummary:{
                        render:function(){
                            return "<span id='heji'>合计:</span>";
                        },
                        align:"right"
                    }
                },
                {display:"数量",name:"nums",type:"int",isAllowHide:false,align:"left",width:80,
                    editor:{type:"spinner"},
                    totalSummary:{
                        //type:'sum,count,max,min,avg'
                        render:function(suminf,column){
                            return "<span style='color:red'>数量："+suminf.sum+"</span>";
                        }
                    }
                },
                {display:"单价",name:"price",type:"float",isAllowHide:false,editor:{type:"float",minValue:"0"},
                    align:"left",width:80,
                    render:function(item){
                        return formatCurrency(item.price);
                    }
                },
                {display:"金额",name:"numsPrice",type:"float",isAllowHide:false,
                    align:"left",width:90,
                    render:function(item){
                        var money = item.nums*item.price;
                        return formatCurrency(money);
                    },
                    totalSummary:{
                        render:function(suminf,column){
                            return "<span id='totalPrice'>"+formatCurrency(suminf.sum)+"</span>";
                        },
                        algin:"left"
                    }
                },
                {display:"备注",name:"remarks",editor:{type:"text"},align:"left",width:250}
                ],
                rownumbers:true,
                enabledEdit:true,
                isScroll:true,
                onBeforeEdit: f_onBeforeEdit,
                onAfterEdit: f_onAfterEdit,
                //onAfterShowData: f_onAfterShowData,
                usePager:false,
                width:"99.7%"
            });
          });
          var totalNums=0,totalPrice=0;
          //触发编辑事件前给总价赋值
        function f_onBeforeEdit(e){
            totalNums-=parseInt((e.record.nums));
            totalPrice-=parseFloat(formatCurrency(parseFloat(formatCurrency(e.record.price)) * parseInt(e.record.nums)));
        }
        function f_onAfterEdit(e){
            g.updateCell('numsPrice', e.record.price * e.record.nums, e.record);
            totalNums+=parseInt(e.record.nums);
            totalPrice+=parseFloat(formatCurrency(parseFloat(formatCurrency(e.record.price)) * parseInt(e.record.nums)));

            $("#totalPrice").html(formatCurrency(totalPrice));
        }

          function addParts(){
              var rowData={
                      pName:"",
                      pBrand:"1",
                      pModel:"",
                      nums:"0",
                      price:"",
                      numsPrice:"",
                      remarks:""
                  };
              g.addEditRow(rowData);
          }

          function formatCurrency(num)
        {
            if (!num) return "0.00";
            num = num.toString().replace(/\$|\,/g, '');
            if (isNaN(num))
                num = "0.00";
            sign = (num == (num = Math.abs(num)));
            num = Math.floor(num * 100 + 0.50000000001);
            cents = num % 100;
            num = Math.floor(num / 100).toString();
            if (cents < 10)
                cents = "0" + cents;
            for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++)
                num = num.substring(0, num.length - (4 * i + 3)) + ',' +
            num.substring(num.length - (4 * i + 3));
            return (((sign) ? '' : '-') + '' + num + '.' + cents);
        }

          //客户端封装成Json字符串提交
        function doSave(){
            var data= g.getData();
            $("#jsonStr").val(JSON.stringify(data));
            alert("Json字符串："+JSON.stringify(data));
            $("form").submit();
        }
      </script>
      <style type="text/css">
          body {
        font-size:12px;
        padding:10px
    }
    .l-table-edit {
    }
    .l-table-edit-td {
        padding:4px;
        font-size:12px;
        border:#84a0c4 1px solid
    }
    .l-button-submit, .l-button-test {
        width:80px;
        float:left;
        margin-left:10px;
        padding-bottom:2px;
    }
      </style>
  </head>

  <body>

      <form name="form" id="form" action="<%=request.getContextPath() %>/main/studentServlet.action" method="post">
        <table cellpadding="0" cellspacing="0" class="l-table-edit"
            style="width:100%">
            <input name="jsonStr" type="hidden" id="jsonStr" />
            <input name="reqCode" type="hidden" id="reqCode" value="saveParts" />
            <tr>
                <td width="17%" align="right" class="l-table-edit-td">
                    <font color="#FF0000">*</font>询价编号：
                </td>
                <td width="27%" align="left" class="l-table-edit-td">
                    <input name="code" type="text" id="code" size="30" maxlength="100" ltype="text" validate="{required:true}" />
                </td>
                <td width="13%" align="right" class="l-table-edit-td">
                    <font color="#FF0000">*</font>询价日期：
                </td>
                <td width="43%" align="left" class="l-table-edit-td">
                    <input
                    name="addDate" type="text" id="addDate" maxlength="30" validate="{required:true}" ltype="date" />
                </td>

            </tr>
            <tr>
                <td width="17%" align="right" class="l-table-edit-td">
                    <font color="#FF0000">*</font><a href="javascript:f_open()">供应商名：</a>
                </td>
                <td align="left" class="l-table-edit-td">
                    <input name="supplierName" type="text" id="supplierName"
                     size="30"
                    maxlength="100" ltype="text" validate="{required:true}" />

                <td width="13%" align="right" class="l-table-edit-td">
                    联系人员：
                </td>
                <td align="left" class="l-table-edit-td">
                    <input name="contacter" type="text" id="contacter"
                    value="" maxlength="30" ltype="text" />
                </td>
            </tr>
            <tr>
                <td width="17%" align="right" class="l-table-edit-td">
                    电&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;话：
                </td>
                <td align="left" class="l-table-edit-td">
                    <input
                    name="telephone" type="text" id="telephone" value="" size="30" maxlength="50" ltype="text" />
                </td>

                <td width="17%" align="right" class="l-table-edit-td">
                    传&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;真：
                </td>
                <td align="left" class="l-table-edit-td">
                    <input
                    name="fax" type="text" class="l-table-edit" id="fax" value="" maxlength="50" ltype="text" />
                </td>
            </tr>
            <tr>

                <td align="right" class="l-table-edit-td">
                    备&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;注：
                </td>
                <td align="left" class="l-table-edit-td" colspan="3">
                    <input
                    name="remarks" type="text" class="l-table-edit" id="remarks" style="width:90%" value="" maxlength="200"
                    ltype="text" />
                 </td>
            </tr>
        </table>

        <br /> 

        <input name="button_update" type="button" value="添加配件" style="width:60px" onClick="javascript:addParts()">
        <input
            name="button_save" type="button" value="保   存" style="width:60px" onclick="javascript:doSave();">
        <!--保存提示语-->

    </form>

      <div id="maingrid" style="margin-top:20px"></div>

  </body>
</html>

3:编写Json的Servlet类：

package com.west.study.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

@SuppressWarnings("serial")
public class JsonServlet extends HttpServlet {
    Person person;
    /** 4：doGet(),doPost()，5：web.xml */
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        System.out.println("执行：doPost(),调用doGet()");
        doGet(req, resp);
    }

    @Override
    protected void doGet(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html;charset=utf-8");
        request.setCharacterEncoding("utf-8");
        String reqCode = request.getParameter("reqCode");
        String message="";//servlet返回给界面的字符串
        PrintWriter out = response.getWriter();
        System.out.println("操作名：" + reqCode);
        if(reqCode=="saveParts"||reqCode.equals("saveParts")){
            message=getSaveMessage( request,response);
        }
        System.out.println("返回的信息："+message);
        out.write(message);
        out.flush();
        out.close();

    }

    public String getSaveMessage(HttpServletRequest request,
            HttpServletResponse response){
        String pageJsonStr=request.getParameter("jsonStr");
        System.out.println("从界面获取的jsonString"+pageJsonStr);
        //将界面传入的Json字符串，封装成JsonArray
        JSONArray jsonArray=JSONArray.fromObject(pageJsonStr);
        //遍历JsonArray，取出JsonArray里面存储的键值对
        for (Object object : jsonArray) {
            //方式一：取出来的类型是：object，需要强制转换成JSONObject
            JSONObject jobj=(JSONObject)object;
            String pname=jobj.getString("pName");
            String pBrand=jobj.getString("pBrand");
            String pModel=jobj.getString("pModel");
            String nums=jobj.getString("nums");
            String price=jobj.getString("price");
            String numsPrice=jobj.getString("numsPrice");
            String remarks=jobj.getString("remarks");
            System.out.println("得到的信息：名字："+pname+":Brand:"+pBrand+":PModel:"+pModel+":nums:"+nums+"：价格:"+price+":numsPrice:"+numsPrice+":remarks:"+remarks);
            //方式二：将JsonObject类封装成PO（Person）类
            person=(Person)JSONObject.toBean(jobj, Person.class);
            System.out.println("封装成PO类："+person.getPrice());
        }
        return "成功保存！";
    }
}

项目下载地址：http://download.csdn.net/detail/poiuy1991719/8561811