日期:2014-05-16  浏览次数:20530 次

ckedit上传图片到数据库



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?最近要实现在ckedit上传图片,而且要上传保存到数据库,在网站找了不少资料,基本上都是保存到服务器的文件夹,但那些资料对我也起了很多作用。下面我把我的实现记录下来,作为备忘。(CKEditor 在jsp中实现文件上传的完整例子)http://blog.163.com/prevBlogPerma.do?host=ytrtfhj@126&srl=890531092010226023136&mode=prev

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ckeditor非常强大,但官网上它的图片/文件上传使用了ckfinder,比较麻烦。我首先是在图片链接输入框的右边加个按钮,点击事件链接到已有的上传模块,上传后把图片的下载url(这个花了我不少时间)传递给左边的输入框即可。步骤如下:

??打开plugins\image\dialogs\image.js,在链接输入框代码结尾也就是 m.lang.image.urlMissing)},后面加上这些代码:

{type:'button',id:'myUpload',align:'center',label:'新上传 ',onClick:function(){var thisDialog = this.getDialog();var txtUrlObj = thisDialog.getContentElement('info', 'txtUrl'); var txtUrlId = txtUrlObj.getInputElement().$.id; 
var retFile = window.open("info2j.zrx?path=info/info_uploadImage&infotypeid="+top.document.getElementById('infotypeid').value+"&txtUrlId="+txtUrlId, "", "height=300, width=400"); if(retFile != null){this.getDialog().setValueOf('info','txtUrl',retFile);}}},

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?{type:'button',id:'myUpload',align:'center',label:'新上传 ',onClick:function(){var thisDialog = this.getDialog();var txtUrlObj = thisDialog.getContentElement('info', 'txtUrl'); var txtUrlId = txtUrlObj.getInputElement().$.id; 为了获得图片URL文本框的id,并可以传回页面;我这里由于jsp页面都是放在WEB-INF目录下,所以页面跳转是借助action来实现的。所谓我是先把id传到info2j.action,然后再从info_uploadImage.jsp页面拿,

var retFile = window.open("info2j.action?path=info/info_uploadImage&infotypeid="+top.document.getElementById('infotypeid').value+"&txtUrlId="+txtUrlId, "", "height=300, width=400");

跳转到info_uploadImage.jsp页面,并把图片URL文本框的id传过去

下面是info_uploadImage.jsp的简单代码

<%@ page language="java" contentType="text/html; charset=UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
	<head>
		
		<title>上传图片</title>
		<script type="text/javascript">
		
		function checkFormat(filePath){
			var i = filePath.lastIndexOf(".");
			var len = filePath.length;
			var str = filePath.substring(i+1,len);
			var extName = "JPG,GIF,PNG,BMP";
		
			if(extName.indexOf(str.toUpperCase()) < 0){
				alert("图片格式不正确");
				return false;
			}
			return true;
			
		}
		
		/*
		图标预览,兼容ie,firefox
		*/
		function fileChange(o){
			if(checkFormat(o.value)){
				if(window.ActiveXObject){
					document.getElementById("uploadImg").width = 100;
					document.getElementById("uploadImg").height = 100;
					document.getElementById("uploadImg").src = o.value;
				}else{
					document.getElementById("uploadImg").width = 100;
					document.getElementById("uploadImg").height = 100;
					document.getElementById("uploadImg").src = o.files[0].getAsDataURL();
				}
				
			}
		}

	   /* 给图片text附上图片地址*/
       function finish(generatedId){
       		//获得图片text的id
       		var imageUrl = document.getElementById("txtUrlId").value;
		   
		    alert("<s:text name='info.upload.success' />!");
		   
			window.opener.document.getElementById(imageUrl).value = "info_downloadImage.zrx?imageId="+generatedId;
			window.opener.document.getElementById("previewImage").setAttribute("src","info_downloadImage.zrx?imageId="+generatedId);
		    window.close();
	 }
       
    </script>

	</head>

	<body>
		
		
		<s:form id="uploadForm" name="uploadForm" method="post" action="info_upLoadImage.zrx" theme="simple"
			enctype="multipart/form-data"  target="frame