廢話不多說，先上效果圖：

點擊導(dǎo)出，實現(xiàn)

點擊導(dǎo)出

統(tǒng)計完成之后

點擊確定

下面來談?wù)剬崿F(xiàn)的思路：

前面導(dǎo)出操作簡單，從第二個導(dǎo)出操作開始：

點擊"確定"調(diào)用exportCsv函數(shù)

代碼如下:

<a class="on" href="javascript:exportCsv();"><em>導(dǎo)出</em></a> exportCvs函數(shù)如下 function exportCsv() { 　//清除等待的轉(zhuǎn)動圈     $('#loading').html('');  //彈出統(tǒng)計總數(shù)對話框，函數(shù)在后面給出定義     tip(); //ajax請求總數(shù)     $.post("<?php echo WEB_URL;?>/index.php?q=onlinesea/getwherecount"+search_uri, function(json){         var return_arr = eval('(' + json + ')');         var num = return_arr['total'];         var processnum = return_arr['processnum'];         if(num == 0){             poptip.title('系統(tǒng)消息');             poptip.content('查詢結(jié)果為空，不能進行數(shù)據(jù)導(dǎo)出');         }         else         {             poptip.close();             for (var i in return_arr['cntarr']){                 if (return_arr['cntarr'][i] != 0){                     count_arr[i] = return_arr['cntarr'][i];                 }             }             var ii=0;             for (var i in count_arr){                   type_arr[ii]=i;                   ii++;             } 　　//當數(shù)據(jù)不為空的時候彈出是否到處框             exportCsvConfirm(num, processnum);         }     }); }   //彈出確認下載  exportCsvConfirm函數(shù) function exportCsvConfirm(num, processnum) {     var msg = '需要導(dǎo)出的數(shù)據(jù)有 <span style="color: red">' + num + '</span> 行，可能會占用您較多時間來進行導(dǎo)出。<br />您還需要繼續(xù)嗎？';    // 提示是否繼續(xù)     $.dialog.confirm(msg, function () {         $('#loading').html('');         processed_count = 0;         index = 1;         win.$('#process_bg').hide().width('0%').show();         win.$('#process_num').html('0');         $.dialog.through({             title: '數(shù)據(jù)導(dǎo)出進度',             content: win.document.getElementById('processbar'),             lock: true,             opacity: '.1'         },         function(){                 window.location.reload();         });        //當繼續(xù)的時候         win.$('#progress_info').show().text('正在導(dǎo)出數(shù)據(jù)，請耐心等待，請勿關(guān)閉窗口...');       //開始執(zhí)行導(dǎo)出操作         excel_export2(num, processnum);     }); }

關(guān)鍵函數(shù)excel_export2隊列請求，首先會在前面定義全局變量

代碼如下:

var search_uri = "<?php echo $uri;?>"; var event = "<?php echo $event;?>"; var processed_count = 0;    // 已處理的數(shù)據(jù)條數(shù) var index = 1; var iii   = 0; var ajaxmark = 1; var win = $.dialog.parent;    // 頂層頁面window對象 var count_arr = new Array(<?php echo count($this->tables);?>); var type_arr = new Array();

我們要定義全局變量 index 和iii ，ajaxmark ,index主要用于對一個表數(shù)據(jù)太多的時候進行分批導(dǎo)出 ，iii用來控制隊列循環(huán)，ajaxmark用來判斷前一個請求是否執(zhí)行成功了，成功的話在執(zhí)行下面的請求

代碼如下:

function excel_export2(num, processnum){       //獲取tabletype       tabletype=type_arr[iii];      //獲取總數(shù)       num = count_arr[tabletype];     //判斷是否數(shù)組是否執(zhí)行完畢       if(typeof(tabletype)=='undefined'&&typeof(num)=='undefined'){             return false;       }      //判斷是否有上一個ajax請求是否完成       if(ajaxmark==1){             index = 1;            //將ajax請求標記為未執(zhí)行完成 　　　　ajaxmark=2;           //執(zhí)行ajax請求，函數(shù)在后面給出             retrun_var = excel_export_ajax(index, num, processnum, tabletype);             //判斷函數(shù)返回             if(typeof(retrun_var)=='undefined'){            　　　　　　//將iii自增，執(zhí)行下一個數(shù)組數(shù)據(jù)                   iii++; 　　　　　　//遞歸調(diào)用自己                   excel_export2(num, processnum);                   if(iii>100){                         return false;                   } 　　　　//當ajax返回成功的時候，返回。             }else if(retrun_var=='success'){                   return false;             }             return false;       }else{             //setTimeout(excel_export2(num, processnum),3000);             //setInterval(_excel_export2(num, processnum),3000); 　　　　//每隔3秒檢查是否ajax請求結(jié)束，這里settimeout 不能傳遞參數(shù)，只能通過_excel_export2這種形式             setTimeout(_excel_export2(num, processnum),3000);       } } function _excel_export2(num, processnum){        return function(){              excel_export2(num, processnum);        } }   //excel_export_ajax函數(shù)  執(zhí)行導(dǎo)出 /* AJAX，遞歸調(diào)用 */ function excel_export_ajax(index, num, processnum, tabletype) {     $.ajax({         url: "<?php echo WEB_URL;?>/index.php?q=onlinesea/exportcsv"+search_uri+"/index/"+index+ "/total/" + num + '/tabletype/' + tabletype,         type: 'GET',         success: function(data)         { 　　　　//執(zhí)行次數(shù)自增             ++processed_count; 　　　　//當一個表數(shù)據(jù)太多，分批導(dǎo)出             ++index;             // 更新進度條 　　　　//判斷進度             var process_num = parseInt((processed_count / processnum) * 100); 　　　　             if (process_num >= 100)             {                 process_num = 100;             } 　　　　//跟新進度條             update_process(process_num);             //alert(processed_count+'--'+processnum); 　　　　//當執(zhí)行結(jié)束             if (processed_count >= processnum)             { 　　　　　　//壓縮文件                 backup_compress();                 return 'success';             }             if (data == '0'){ 　　　　　　//將ajax請求標記為執(zhí)行完畢，執(zhí)行下一個url請求                 ajaxmark=1;                 return false;             }             當一個表的數(shù)據(jù)未導(dǎo)出完成的時候，會循環(huán)調(diào)用自己去請求， php函數(shù)或判斷是否到處完成，導(dǎo)出完成返回0  ，未完成返回1             excel_export_ajax(index, num, processnum, tabletype);         }     }); } /* 備份文件執(zhí)行壓縮 */ function backup_compress() {     win.$('#progress_info').text('正在生成壓縮文件...');     $.ajax({         url: "<?php echo WEB_URL;?>/index.php?q=onlinesea/compress/event/<?php echo $event;?>",         success: function(msg){             win.$('#process_bg').show().width('100%');             win.$('#process_num').html('100');             win.$('#progress_info').html('導(dǎo)出數(shù)據(jù)完成。&nbsp;&nbsp;<a href="' + msg + '" style="color: #006699; text-decoration: underline">下載文件</a>');         }     }); } /* 更新進度條 */ function update_process(process_num) {     win.$('#process_bg').show().width(process_num + '%');     win.$('#process_num').html(process_num); }

下面附上源碼，咳咳相關(guān)php程序大家自己腦補下吧

代碼如下:

<script type="text/javascript" language="javascript"> var search_uri = "<?php echo $uri;?>"; var event = "<?php echo $event;?>"; var processed_count = 0;    // 已處理的數(shù)據(jù)條數(shù) var index = 1; var iii   = 0; var ajaxmark = 1; var win = $.dialog.parent;    // 頂層頁面window對象 var count_arr = new Array(<?php echo count($this->tables);?>); var type_arr = new Array(); function exportCsv() {     $('#loading').html('');     tip();     $.post("<?php echo WEB_URL;?>/index.php?q=onlinesea/getwherecount"+search_uri, function(json){         var return_arr = eval('(' + json + ')');         var num = return_arr['total'];         var processnum = return_arr['processnum'];         if(num == 0){             poptip.title('系統(tǒng)消息');             poptip.content('查詢結(jié)果為空，不能進行數(shù)據(jù)導(dǎo)出');         }         else         {             poptip.close();             for (var i in return_arr['cntarr']){                 if (return_arr['cntarr'][i] != 0){                     count_arr[i] = return_arr['cntarr'][i];                 }             }             var ii=0;             for (var i in count_arr){                   type_arr[ii]=i;                   ii++;             }             exportCsvConfirm(num, processnum);         }     }); } function exportCsvConfirm(num, processnum) {     var msg = '需要導(dǎo)出的數(shù)據(jù)有 <span style="color: red">' + num + '</span> 行，可能會占用您較多時間來進行導(dǎo)出。<br />您還需要繼續(xù)嗎？';     $.dialog.confirm(msg, function () {         $('#loading').html('');         processed_count = 0;         index = 1;         win.$('#process_bg').hide().width('0%').show();         win.$('#process_num').html('0');         $.dialog.through({             title: '數(shù)據(jù)導(dǎo)出進度',             content: win.document.getElementById('processbar'),             lock: true,             opacity: '.1'         },         function(){                 window.location.reload();         });         win.$('#progress_info').show().text('正在導(dǎo)出數(shù)據(jù)，請耐心等待，請勿關(guān)閉窗口...');         excel_export2(num, processnum);     }); } function excel_export2(num, processnum){       tabletype=type_arr[iii];       num = count_arr[tabletype];       if(typeof(tabletype)=='undefined'&&typeof(num)=='undefined'){             return false;       }       if(ajaxmark==1){             index = 1;             ajaxmark=2;             retrun_var = excel_export_ajax(index, num, processnum, tabletype);             if(typeof(retrun_var)=='undefined'){                               iii++;                   excel_export2(num, processnum);                   if(iii>100){                         return false;                   }             }else if(retrun_var=='success'){                   return false;             }             return false;       }else{             //setTimeout(excel_export2(num, processnum),3000);             //setInterval(_excel_export2(num, processnum),3000);             setTimeout(_excel_export2(num, processnum),3000);       } } function _excel_export2(num, processnum){        return function(){              excel_export2(num, processnum);        } } /* 執(zhí)行導(dǎo)出 */ function excel_export(num, processnum){     var retrun_var = 'ss';     for (var i in count_arr){         num = count_arr[i];         tabletype = i;         index = 1;         retrun_var = excel_export_ajax(index, num, processnum, tabletype);         if(typeof(retrun_var)=='undefined'){             //alert('xxxx');             setTimeout(function(){exit;},5000);         }         if (retrun_var == 'success')         {             return false;         }     }     return false; } /* AJAX，遞歸調(diào)用 */ function excel_export_ajax(index, num, processnum, tabletype) {     $.ajax({         url: "<?php echo WEB_URL;?>/index.php?q=onlinesea/exportcsv"+search_uri+"/index/"+index+ "/total/" + num + '/tabletype/' + tabletype,         type: 'GET',         success: function(data)         {             ++processed_count;             ++index;             // 更新進度條             var process_num = parseInt((processed_count / processnum) * 100);             if (process_num >= 100)             {                 process_num = 100;             }             update_process(process_num);             //alert(processed_count+'--'+processnum);             if (processed_count >= processnum)             {                 backup_compress();                 return 'success';             }             if (data == '0'){                 ajaxmark=1;                 return false;             }             excel_export_ajax(index, num, processnum, tabletype);         }     }); } /* 更新進度條 */ function update_process(process_num) {     win.$('#process_bg').show().width(process_num + '%');     win.$('#process_num').html(process_num); } /* 備份文件執(zhí)行壓縮 */ function backup_compress() {     win.$('#progress_info').text('正在生成壓縮文件...');     $.ajax({         url: "<?php echo WEB_URL;?>/index.php?q=onlinesea/compress/event/<?php echo $event;?>",         success: function(msg){             win.$('#process_bg').show().width('100%');             win.$('#process_num').html('100');             win.$('#progress_info').html('導(dǎo)出數(shù)據(jù)完成。&nbsp;&nbsp;<a href="' + msg + '" style="color: #006699; text-decoration: underline">下載文件</a>');         }     }); } function tip() {     poptip = $.dialog.through({         id: 'tip',         title: '系統(tǒng)消息',         content: '正在統(tǒng)計總數(shù)，請勿關(guān)閉窗口&nbsp;&nbsp;<img src="http://images.cnblogs.com/loading_s.gif" />',         width: 300,         height: 100,         icon: 'system',         lock: true,         opacity: .1     },     function(){         window.location.reload();     });     poptip.show(); } function packetDelete(url,msg) {     $.dialog.confirm(msg, function () {         $.post(url, function(data){           if(data == '1'){               $.dialog('刪除成功', function(){window.location.reload();});           }           else if(data == '2'){             $.dialog('刪除失敗', function(){window.location.reload();});           }           else if(data == '3'){             $.dialog('文件不存在，或者已刪除', function(){window.location.reload();});           }       });      }); } </script>

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