xheditor实践一

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页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<script type="text/javascript" src="xheditor-1.1.7/jquery/jquery-1.4.2.min.js"></script>
	<script type="text/javascript" src="xheditor-1.1.7/xheditor-1.1.7-zh-cn.min.js"></script>
	<script type="text/javascript">
		$(document).ready(function(){
			//初始化xhEditor编辑器插件
			$('#xh_editor').xheditor({
				tools:'full',
				skin:'default',
				upMultiple:true,
				upImgUrl: "servlet/UploadFileServlet",
				upImgExt: "jpg,jpeg,gif,bmp,png",
				upFlashUrl:"servlet/UploadSwfServlet",
				upFlashExt:"swf",
				upMediaUrl:"servlet/UploadMediaServlet",
				upMediaExt:"wmv,avi,wma,mp3,mid",
				onUpload:insertUpload,
				html5Upload:false
			});
			//xbhEditor编辑器图片上传回调函数
			function insertUpload(msg) {
				var _msg = msg.toString();
				var _picture_name = _msg.substring(_msg.lastIndexOf("/")+1);
				var _picture_path = Substring(_msg);
				var _str = "<input type='checkbox' name='_pictures' value='"+_picture_path+"' checked='checked' onclick='return false'/><label>"+_picture_name+"</label><br/>";
				$("#xh_editor").append(_msg);
				$("#uploadList").append(_str);
			}
			//处理服务器返回到回调函数的字符串内容,格式是JSON的数据格式.
			function Substring(s){
				return s.substring(s.substring(0,s.lastIndexOf("/")).lastIndexOf("/"),s.length);
			}
		});
	</script>
  </head>
  
  <body>
    <form action="" method="post">
  	<div>
  	<textarea id="xh_editor" name="contents" rows="25" style="width:100%; border: 1px"></textarea>
  	</div>
  	<div id="uploadList"></div>
	</form>
  </body>
  </html>

配置文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
	
	<servlet>
		<servlet-name>XhEditor</servlet-name>
		<servlet-class>com.xheditor.servlet.UploadFileServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>XhEditor</servlet-name>
		<url-pattern>/servlet/UploadFileServlet</url-pattern>
	</servlet-mapping>
	
	<servlet>
		<servlet-name>swf</servlet-name>
		<servlet-class>com.xheditor.servlet.UploadSwfServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>swf</servlet-name>
		<url-pattern>/servlet/UploadSwfServlet</url-pattern>
	</servlet-mapping>
	
	<servlet>
		<servlet-name>media</servlet-name>
		<servlet-class>com.xheditor.servlet.UploadMediaServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>media</servlet-name>
		<url-pattern>/servlet/UploadMediaServlet</url-pattern>
	</servlet-mapping>
	
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
</web-app>

类

package com.xheditor.servlet;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.UUID;

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

import org.apache.commons.fileupload.DiskFileUpload;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.lang.StringUtils;

@SuppressWarnings({ "serial", "deprecation" })
public class UploadFileServlet extends HttpServlet {
	
	private static String baseFileDir = File.separator + "upload" + File.separator;//上传文件存储目录
	private static String baseURLDir = "/upload/";//上传文件目录URL
	private static String fileExt = "jpg,jpeg,bmp,gif,png";
	private static Long maxSize = 0l;

	// 0:不建目录 1:按天存入目录 2:按月存入目录 3:按扩展名存目录 建议使用按天存
	private static String dirType = "1";
	
	/**
	 * 文件上传初始化工作
	 */
	public void init() throws ServletException {
		/*获取文件上传存储的相当路径*/
		if (!StringUtils.isBlank(this.getInitParameter("baseDir"))){
			baseFileDir = this.getInitParameter("baseDir");
		}
		
		String realBaseDir = this.getServletConfig().getServletContext().getRealPath(baseFileDir);
		File baseFile = new File(realBaseDir);
		if (!baseFile.exists()) {
			baseFile.mkdir();
		}

		/*获取文件类型参数*/
		fileExt = this.getInitParameter("fileExt");
		if (StringUtils.isBlank(fileExt)) fileExt = "jpg,jpeg,gif,bmp,png";

		/*获取文件大小参数*/
		String maxSize_str = this.getInitParameter("maxSize");
		if (StringUtils.isNotBlank(maxSize_str)) maxSize = new Long(maxSize_str);
		
		/*获取文件目录类型参数*/
		dirType = this.getInitParameter("dirType");
		
		if (StringUtils.isBlank(dirType))
			dirType = "1";
		if (",0,1,2,3,".indexOf("," + dirType + ",") < 0)
			dirType = "1";
	}

	/**
	 * 上传文件数据处理过程
	 */
	@SuppressWarnings({"unchecked" })
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html; charset=UTF-8");
		response.setHeader("Cache-Control", "no-cache");

		String err = "";
		String newFileName = "";

		DiskFileUpload upload = new DiskFileUpload();
		try {
			List<FileItem> items = upload.parseRequest(request);
			Map<String, Serializable> fields = new HashMap<String, Serializable>();
			Iterator<FileItem> iter = items.iterator();
			
			while (iter.hasNext()) {
				FileItem item = (FileItem) iter.next();
				if (item.isFormField())
					fields.put(item.getFieldName(), item.getString());
				else
					fields.put(item.getFieldName(), item);
			}
			
			/*获取表单的上传文件*/
			FileItem uploadFile = (FileItem)fields.get("filedata");
			
			/*获取文件上传路径名称*/
			String fileNameLong = uploadFile.getName();
			System.out.println("fileNameLong:" + fileNameLong);
			
			/*获取文件扩展名*/
			/*索引加1的效果是只取xxx.jpg的jpg*/
			String extensionName = fileNameLong.substring(fileNameLong.lastIndexOf(".") + 1);
			System.out.println("extensionName:" + extensionName);
			
			/*检查文件类型*/
			if (("," + fileExt.toLowerCase() + ",").indexOf("," + extensionName.toLowerCase() + ",") < 0){
				printInfo(response, "不允许上传此类型的文件", "");
				return;
			}
			/*文件是否为空*/
			if (uploadFile.getSize() == 0){
				printInfo(response, "上传文件不能为空", "");
				return;
			}
			/*检查文件大小*/
			if (maxSize > 0 && uploadFile.getSize() > maxSize){
				printInfo(response, "上传文件的大小超出限制", "");
				return;
			}
			
			//0:不建目录, 1:按天存入目录, 2:按月存入目录, 3:按扩展名存目录.建议使用按天存.
			String fileFolder = "";
			if (dirType.equalsIgnoreCase("1"))
				fileFolder = new SimpleDateFormat("yyyyMMdd").format(new Date());;
			if (dirType.equalsIgnoreCase("2"))
				fileFolder = new SimpleDateFormat("yyyyMM").format(new Date());
			if (dirType.equalsIgnoreCase("3"))
				fileFolder = extensionName.toLowerCase();
			
			/*文件存储的相对路径*/
			String saveDirPath = baseFileDir + fileFolder + "/";
			System.out.println("saveDirPath:" + saveDirPath);
			
			/*文件存储在容器中的绝对路径*/
			String saveFilePath = this.getServletConfig().getServletContext().getRealPath("") + baseFileDir + fileFolder + "/";
			System.out.println("saveFilePath:" + saveFilePath);
			
			/*构建文件目录以及目录文件*/
			File fileDir = new File(saveFilePath);
			if (!fileDir.exists()) {fileDir.mkdirs();}
			
			/*重命名文件*/
			String filename = UUID.randomUUID().toString();
			File savefile = new File(saveFilePath + filename + "." + extensionName);
			
			/*存储上传文件*/
			System.out.println(upload == null);
			uploadFile.write(savefile);
			
			String projectBasePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+request.getContextPath();
			//上传文件URL回调
			//newFileName =projectBasePath + baseURLDir + fileFolder + "/" + filename + "." + extensionName;
			//立即上传模式
			newFileName = "!" + projectBasePath + baseURLDir + fileFolder + "/" + filename + "." + extensionName;		
			System.out.println("newFileName:" + newFileName);
		} catch (Exception ex) {
			System.out.println(ex.getMessage());
			newFileName = "";
			err = "错误: " + ex.getMessage();
		}
		printInfo(response, err, newFileName);
	}
	
	/**
	 * 使用I/O流输出 json格式的数据
	 * @param response
	 * @param err
	 * @param newFileName
	 * @throws IOException
	 */
	public void printInfo(HttpServletResponse response, String err, String newFileName) throws IOException {
		PrintWriter out = response.getWriter();
		//String filename = newFileName.substring(newFileName.lastIndexOf("/") + 1);
		out.println("{\"err\":\"" + err + "\",\"msg\":\"" + newFileName + "\"}");
		out.flush();
		out.close();
	}
}