ExtJS导出Excel表格详解

ExtJs导出Excel表格

源文件引入工程：girdToExcel.js

 

/**
 * allows for downloading of grid data (store) directly into excel
 * Method: extracts data of gridPanel store, uses columnModel to construct XML excel document,
 * converts to Base64, then loads everything into a data URL link.
 *
 * @author		Animal		<extjs support team>
 *
 */

/**
 * base64 encode / decode
 *
 * @location 	http://www.webtoolkit.info/
 *
 */

var Base64 = (function() {
    // Private property
    var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

    // Private method for UTF-8 encoding
    function utf8Encode(string) {
        string = string.replace(/\r\n/g,"\n");
        var utftext = "";
        for (var n = 0; n < string.length; n++) {
            var c = string.charCodeAt(n);
            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }
        }
        return utftext;
    }

    // Public method for encoding
    return {
        encode : (typeof btoa == 'function') ? function(input) {
            return btoa(utf8Encode(input));
        } : function (input) {
            var output = "";
            var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
            var i = 0;
            input = utf8Encode(input);
            while (i < input.length) {
                chr1 = input.charCodeAt(i++);
                chr2 = input.charCodeAt(i++);
                chr3 = input.charCodeAt(i++);
                enc1 = chr1 >> 2;
                enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
                enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
                enc4 = chr3 & 63;
                if (isNaN(chr2)) {
                    enc3 = enc4 = 64;
                } else if (isNaN(chr3)) {
                    enc4 = 64;
                }
                output = output +
                keyStr.charAt(enc1) + keyStr.charAt(enc2) +
                keyStr.charAt(enc3) + keyStr.charAt(enc4);
            }
            return output;
        }
    };
})();

Ext.override(Ext.grid.GridPanel, {
    getExcelXml: function(includeHidden) {
        var worksheet = this.createWorksheet(includeHidden);
        var totalWidth = this.getColumnModel().getTotalWidth(includeHidden);
        return '<xml version="1.0" encoding="utf-8">' +
            '<ss:Workbook xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:o="urn:schemas-microsoft-com:office:office">' +
            '<o:DocumentProperties><o:Title>' + this.title + '</o:Title></o:DocumentProperties>' +
            '<ss:ExcelWorkbook>' +
            '<ss:WindowHeight>' + worksheet.height + '</ss:WindowHeight>' +
            '<ss:WindowWidth>' + worksheet.width + '</ss:WindowWidth>' +
            '<ss:ProtectStructure>False</ss:ProtectStructure>' +
            '<ss:ProtectWindows>False</ss:ProtectWindows>' +
            '</ss:ExcelWorkbook>' +
            '<ss:Styles>' +
            '<ss:Style ss:ID="Default">' +
            '<ss:Alignment ss:Vertical="Top" ss:WrapText="1" />' +
            '<ss:Font ss:FontName="arial" ss:Size="10" />' +
            '<ss:Borders>' +
            '<ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Top" />' +
            '<ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Bottom" />' +
            '<ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Left" />' +
            '<ss:Border ss:Color="#e4e4e4" ss:Weight="1" ss:LineStyle="Continuous" ss:Position="Right" />' +
            '</ss:Borders>' +
            '<ss:Interior />' +
            '<ss:NumberFormat />' +
            '<ss:Protection />' +
            '</ss:Style>' +
            '<ss:Style ss:ID="title">' +
            '<ss:Borders />' +
            '<ss:Font />' +
            '<ss:Alignment ss:WrapText="1" ss:Vertical="Center" ss:Horizontal="Center" />' +
            '<ss:NumberFormat ss:Format="@" />' +
            '</ss:Style>' +
            '<ss:Style ss:ID="headercell">' +
            '<ss:Font ss:Bold="1" ss:Size="10" />' +
            '<ss:Alignment ss:WrapText="1" ss:Horizontal="Center" />' +
            '<ss:Interior ss:Pattern="Solid" ss:Color="#A3C9F1" />' +
            '</ss:Style>' +
            '<ss:Style ss:ID="even">' +
            '<ss:Interior ss:Pattern="Solid" ss:Color="#CCFFFF" />' +
            '</ss:Style>' +
            '<ss:Style ss:Parent="even" ss:ID="evendate">' +
            '<ss:NumberFormat ss:Format="yyyy-mm-dd" />' +
            '</ss:Style>' +
            '<ss:Style ss:Parent="even" ss:ID="evenint">' +
            '<ss:NumberFormat ss:Format="0" />' +
            '</ss:Style>' +
            '<ss:Style ss:Parent="even" ss:ID="evenfloat">' +
            '<ss:NumberFormat ss:Format="0.00" />' +
            '</ss:Style>' +
            '<ss:Style ss:ID="odd">' +
            '<ss:Interior ss:Pattern="Solid" ss:Color="#CCCCFF" />' +
            '</ss:Style>' +
            '<ss:Style ss:Parent="odd" ss:ID="odddate">' +
            '<ss:NumberFormat ss:Format="yyyy-mm-dd" />' +
            '</ss:Style>' +
            '<ss:Style ss:Parent="odd" ss:ID="oddint">' +
            '<ss:NumberFormat ss:Format="0" />' +
            '</ss:Style>' +
            '<ss:Style ss:Parent="odd" ss:ID="oddfloat">' +
            '<ss:NumberFormat ss:Format="0.00" />' +
            '</ss:Style>' +
            '</ss:Styles>' +
            worksheet.xml +
            '</ss:Workbook>';
    },

    createWorksheet: function(includeHidden) {
        // Calculate cell data types and extra class names which affect formatting
        var cellType = [];
        var cellTypeClass = [];
        var cm = this.getColumnModel();
        var totalWidthInPixels = 0;
        var colXml = '';
        var headerXml = '';
        var visibleColumnCountReduction = 0;
        var colCount = cm.getColumnCount();
        for (var i = 0; i < colCount; i++) {
            if ((cm.getDataIndex(i) != '')
                && (includeHidden || !cm.isHidden(i))) {
                var w = cm.getColumnWidth(i)
                totalWidthInPixels += w;
                if (cm.getColumnHeader(i) === ""){
                	cellType.push("None");
                	cellTypeClass.push("");
                	++visibleColumnCountReduction;
                }
                else
                {
                    colXml += '<ss:Column ss:AutoFitWidth="1" ss:Width="' + w + '" />';
                    headerXml += '<ss:Cell ss:StyleID="headercell">' +
                        '<ss:Data ss:Type="String">' + cm.getColumnHeader(i) + '</ss:Data>' +
                        '<ss:NamedCell ss:Name="Print_Titles" /></ss:Cell>';
                    var fld = this.store.recordType.prototype.fields.get(cm.getDataIndex(i));
                    switch(fld.type) {
                        case "int":
                            cellType.push("Number");
                            cellTypeClass.push("int");
                            break;
                        case "float":
                            cellType.push("Number");
                            cellTypeClass.push("float");
                            break;
                        case "bool":
                        case "boolean":
                            cellType.push("String");
                            cellTypeClass.push("");
                            break;
                        case "date":
                            cellType.push("DateTime");
                            cellTypeClass.push("date");
                            break;
                        default:
                            cellType.push("String");
                            cellTypeClass.push("");
                            break;
                    }
                }
            }
        }
        var visibleColumnCount = cellType.length - visibleColumnCountReduction;

        var result = {
            height: 9000,
            width: Math.floor(totalWidthInPixels * 30) + 50
        };

        // Generate worksheet header details.
        var t = '<ss:Worksheet ss:Name="' + this.title + '">' +
            '<ss:Names>' +
            '<ss:NamedRange ss:Name="Print_Titles" ss:RefersTo="=\'' + this.title + '\'!R1:R2" />' +
            '</ss:Names>' +
            '<ss:Table x:FullRows="1" x:FullColumns="1"' +
            ' ss:ExpandedColumnCount="' + (visibleColumnCount + 2) +
            '" ss:ExpandedRowCount="' + (this.store.getCount() + 2) + '">' +
            colXml +
            '<ss:Row ss:Height="38">' +
            '<ss:Cell ss:StyleID="title" ss:MergeAcross="' + (visibleColumnCount - 1) + '">' +
            '<ss:Data xmlns:html="http://www.w3.org/TR/REC-html40" ss:Type="String">' +
            '<html:B>ESB_监控主表</html:B></ss:Data><ss:NamedCell ss:Name="Print_Titles" />' +
            '</ss:Cell>' +
            '</ss:Row>' +
            '<ss:Row ss:AutoFitHeight="1">' +
            headerXml +
            '</ss:Row>';

        // Generate the data rows from the data in the Store
        for (var i = 0, it = this.store.data.items, l = it.length; i < l; i++) {
            t += '<ss:Row>';
            var cellClass = (i & 1) ? 'odd' : 'even';
            r = it[i].data;
            var k = 0;
            for (var j = 0; j < colCount; j++) {
                if ((cm.getDataIndex(j) != '')
                    && (includeHidden || !cm.isHidden(j))) {
                    var v = r[cm.getDataIndex(j)];
                    if (cellType[k] !== "None") {
                        t += '<ss:Cell ss:StyleID="' + cellClass + cellTypeClass[k] + '"><ss:Data ss:Type="' + cellType[k] + '">';
                        if (cellType[k] == 'DateTime') {
                            t += v.format('Y-m-d');
                        } else {
                            t += v;
                        }
                        t +='</ss:Data></ss:Cell>';
                    }
                    k++;
                }
            }
            t += '</ss:Row>';
        }

        result.xml = t + '</ss:Table>' +
            '<x:WorksheetOptions>' +
            '<x:PageSetup>' +
            '<x:Layout x:CenterHorizontal="1" x:Orientation="Landscape" />' +
            '<x:Footer x:Data="Page &P of &N" x:Margin="0.5" />' +
            '<x:PageMargins x:Top="0.5" x:Right="0.5" x:Left="0.5" x:Bottom="0.8" />' +
            '</x:PageSetup>' +
            '<x:FitToPage />' +
            '<x:Print>' +
            '<x:PrintErrors>Blank</x:PrintErrors>' +
            '<x:FitWidth>1</x:FitWidth>' +
            '<x:FitHeight>32767</x:FitHeight>' +
            '<x:ValidPrinterInfo />' +
            '<x:VerticalResolution>600</x:VerticalResolution>' +
            '</x:Print>' +
            '<x:Selected />' +
            '<x:DoNotDisplayGridlines />' +
            '<x:ProtectObjects>False</x:ProtectObjects>' +
            '<x:ProtectScenarios>False</x:ProtectScenarios>' +
            '</x:WorksheetOptions>' +
            '</ss:Worksheet>';
        return result;
    }
});

第一步：确定你的gird能在IE正常打开

第二步：引入此代码（自己更改)

<%@ page contentType="text/html;charset=GBK" %>
<%@ include file="/include/includeHead.jsp" %>

<span style="font-family: 'Arial Black';"><script language="javascript" src="<%=_contextPath_%>/resource/ext/girdToExcel.js</span><span style="font-family: 'Arial Black';">"></script></span>

<script language="javascript" src="<%=_contextPath_%>/jsp/monitor/neweabusmonitorfordata.js"></script>
</head>
<body>

</body>
</html>

）

第三步：添加 导出Excel按钮：

在你的gird代码内添加一下代码：

                      tbar : [{
			text : "导出EXCEL",
			iconCls : 'page_excelIcon',
			handler : function(title,fileName) {
				var vExportContent = grid.getExcelXml(title); // 获取数据（一般这里会报错,那就看你源文件引入的对吗？）
				if (Ext.isIE8 || Ext.isIE6 || Ext.isIE7 || Ext.isSafari
					|| Ext.isSafari2 || Ext.isSafari3) { // 判断浏览器
					var fd = Ext.get('frmDummy');
					if (!fd) {
					fd = Ext.DomHelper.append(Ext.getBody(), {
						tag : 'form',
						method : 'post',
						id : 'frmDummy',
						<strong>action : 'newExportExcel.jsp',</strong>
						target : '_blank',
						name : 'frmDummy',
						cls : 'x-hidden',
						cn : [
						 {tag:'input',name:'fileName',id:'fileName',type:'hidden'},
						 {tag:'input',name : 'exportContent',id : 'exportContent',type : 'hidden'} 
											   
						 ]
					}, true);
				   }
			                        fd.child('#exportContent').set({
			                        value : vExportContent
		                                });
		                                fd.dom.submit();
		              } else {
						document.location = 'data:application/vnd.ms-excel;base64,'
								+ Base64.encode(vExportContent);<pre name="code" class="javascript">                                                                //（一般这里会报错，那就看你源文件引入的对吗？）Bat64 not isfounction

}}}],

第四步，添加一个jsp引入文件（没有此文件 Excel 不能按照此方式导出）newExportExcel.jsp(路径是在同一文件内)

<strong></strong><pre name="code" class="html"><%@ page language="java" pageEncoding="UTF-8"%>
<%
String content = request.getParameter("exportContent");
String fileName = request.getParameter("fileName");
content = new String(content.getBytes("ISO8859_1"));
fileName="ESB_MONITORLIST";
response.setHeader("Content-Type","application/force-download");
response.setHeader("Content-Type","application/vnd.ms-excel");
response.setHeader("Content-Disposition","attachment;filename="+fileName+".xls");
out.print(content);

%>

 

 

 

网上流传的很多版本在ie7、ie8中导出中文是乱码ff可以不乱码，需要在jsp文件中加上<%@ page language="java" pageEncoding="UTF-8"%>头，获取的内容需要进行转码：content = new String(content.getBytes("ISO8859_1")); 这样在ie7、ie8、Firefox中都可以导出中文。

只要按照我说的一步一步来这时候就应该能导出了 ，乱码问题在上文我已经解决。

我在网上还找到了一个一个文件 提供大家参考

 

<%@ page language="java" pageEncoding="UTF-8"%>
<%@page import= "java.net.URLEncoder "%> 
<% 
	request.setCharacterEncoding("GBK");
	String content = request.getParameter("exportContent");
	String fileName = request.getParameter("fileName");
	String os = System.getProperty("os.name");
	
	if(os.contains("Windows")){
	   content = new String(content.getBytes("ISO8859_1"));//WINDOWS 下需要进行转码，AIX下不需要转码
	}else if(os.contains("AIX")){
		fileName = java.net.URLEncoder.encode(fileName,"UTF-8");//WINDOWS 下不需要对文件名进行转码，AIX下需要转码
	}
	
	response.setHeader("Content-Type","application/force-download");
	response.setHeader("Content-Type","application/vnd.ms-excel");
	response.setHeader("Content-Disposition","attachment;filename=" + fileName + ".xls");
	out.print(content); 

%> 

关于JSP形式导出Excel 就这么多了.....