代码示例一:
<script> //检查图片的格式是否正确,同时实现预览 function setImagePreview(obj, localImagId, imgObjPreview) { var array = new Array('gif', 'jpeg', 'png', 'jpg', 'bmp'); //可以上传的文件类型 if (obj.value == '') { $.messager.alert("提示", "让选择要上传的图片!"); flag = false; return false; } else { var fileContentType = obj.value.match(/^(.*)(\.)(.{1,8})$/)[3]; //这个文件类型正则很有用 ////布尔型变量 var isExists = false; var objValue = obj.value; try { //对于IE判断要上传的文件的大小 var fso = new ActiveXObject("Scripting.FileSystemObject"); fileLenth = parseInt(fso.getFile(objValue).size); } catch (e) { try { //对于非IE获得要上传文件的大小 fileLenth = parseInt(obj.files[0].size); } catch (e) { flag = false; return false; } } //循环判断图片的格式是否正确 for (var i in array) { if (fileContentType.toLowerCase() == array[i].toLowerCase()) { //图片格式正确之后,根据浏览器的不同设置图片的大小 if (obj.files && obj.files[0]) { //火狐下,直接设img属性 imgObjPreview.style.display = 'block'; imgObjPreview.style.width = '180px'; imgObjPreview.style.height = '200px'; //火狐7以上版本不能用上面的getAsDataURL()方式获取,需要一下方式 imgObjPreview.src = window.URL.createObjectURL(obj.files[0]); if (fileLenth > 102400) { $.messager.alert("提示", "请选择小于100k的图片!"); flag = false; return false; } } else { //IE下,使用滤镜 obj.select(); var imgSrc = document.selection.createRange().text; //必须设置初始大小 localImagId.style.width = "180px"; localImagId.style.height = "200px"; //图片异常的捕捉,防止用户修改后缀来伪造图片 try { localImagId.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)"; localImagId.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = imgSrc; } catch (e) { $.messager.alert("提示", "您上传的图片格式不正确,请重新选择!"); flag = false; return false; } imgObjPreview.style.display = 'none'; document.selection.empty(); } isExists = true; flag = true; return true; } } if (isExists == false) { $.messager.alert("提示", "上传图片类型不正确!"); flag = false; return false; } flag = false; return false; } } </script> <tr class="detailInfo"> <td align="right"> 上传照片: </td> <td align="left" > <input type="file" id="idFile" name="idFile" width="150px" runat="server" onchange="javascript:setImagePreview(this,localImag,preview);" /> </td> </tr> <tr class="detailInfo"> <td align="right"> 预 览: </td> <td> <div id="localImag"> <img id="preview" alt="预览图片" src="../img/userphoto.jpg" style="width: 150px; height: 170px;" /> </div> </td> </tr>
代码示例二:
<!doctype html> <html> <head> <meta charset="utf-8" /> <title>ImageDialog Examples</title> <link rel="stylesheet" href="../themes/default/default.css" /> <script src="../kindeditor.js"></script> <script src="../lang/zh_CN.js"></script> <script> KindEditor.ready(function(K) { var editor = K.editor({ allowFileManager : true }); K('#image1').click(function() { editor.loadPlugin('image', function() { editor.plugin.imageDialog({ imageUrl : K('#url1').val(), clickFn : function(url, title, width, height, border, align) { K('#url1').val(url); editor.hideDialog(); } }); }); }); K('#image2').click(function() { editor.loadPlugin('image', function() { editor.plugin.imageDialog({ showLocal : false, imageUrl : K('#url2').val(), clickFn : function(url, title, width, height, border, align) { K('#url2').val(url); editor.hideDialog(); } }); }); }); K('#image3').click(function() { editor.loadPlugin('image', function() { editor.plugin.imageDialog({ showRemote : false, imageUrl : K('#url3').val(), clickFn : function(url, title, width, height, border, align) { K('#url3').val(url); editor.hideDialog(); } }); }); }); }); </script> </head> <body> <p><input type="text" id="url1" value="" /> <input type="button" id="image1" value="选择图片" />(网络图片 + 本地上传)</p> <p><input type="text" id="url2" value="" /> <input type="button" id="image2" value="选择图片" />(网络图片)</p> <p><input type="text" id="url3" value="" /> <input type="button" id="image3" value="选择图片" />(本地上传)</p> </body> </html>