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作者 | 正文 |
发表时间:2008-01-31
一 Webwork2 + FCkeditor
这个问题由来已久,这里我有一个比较好的办法,和大家分享一下。 Webwork 测试版本为2.2.6 + WinXP 配置好 Webwork 环境后,在你的项目里建一个类,内容如下:
/* * Copyright (c) 2002-2003 by OpenSymphony * All rights reserved. */ package com.leo.controller; import java.io.File; import java.io.FileFilter; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.net.URI; import java.net.URISyntaxException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import javax.servlet.ServletContext; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.opensymphony.webwork.WebWorkException; import com.opensymphony.webwork.components.AbstractRichtexteditorConnector; import com.opensymphony.webwork.components.DefaultRichtexteditorConnector; import com.opensymphony.webwork.util.ServletContextAware; import com.opensymphony.webwork.views.util.UrlHelper; import com.opensymphony.xwork.ActionContext; /** * * @author tm_jee * @version $Date: 2007-03-29 08:02:59 +0200 (Do, 29 Mrz 2007) $ $Id: DefaultRichtexteditorConnector.java 2883 2007-03-29 06:02:59Z tm_jee $ */ public class MyConnector extends AbstractRichtexteditorConnector implements ServletContextAware { private static final Log _log = LogFactory.getLog(DefaultRichtexteditorConnector.class); private static final long serialVersionUID = -3792445192115623052L; protected String _actualServerPath = "/user_file/"; protected String _serverPath = "/user_file/"; public String getActualServerPath() { return _actualServerPath; } public void setActualServerPath(String actualServerPath) { _actualServerPath = actualServerPath; } protected String calculateServerPath(String serverPath, String folderPath, String type) throws Exception { //return UrlHelper.buildUrl(serverPath, _request, _response, null, _request.getScheme(), true, true, true); return UrlHelper.buildUrl(serverPath+type+folderPath, _request, _response, new HashMap(), _request.getScheme(), true, true, true); } protected String calculateActualServerPath(String actualServerPath, String type, String folderPath) throws Exception { String path = "file:////"+servletContext.getRealPath(actualServerPath); path = path.trim(); path = path.replace('\\', '/'); makeDirIfNotExists(path); path = path.endsWith("/") ? path : path+"/"; return path+type+folderPath; } private ServletContext servletContext; public void setServletContext(ServletContext servletContext) { this.servletContext = servletContext; } protected Folder[] getFolders(String virtualFolderPath, String type) throws Exception { String path = calculateActualServerPath(getActualServerPath(), type, virtualFolderPath); makeDirIfNotExists(path); java.io.File f = new java.io.File(new URI(path)); java.io.File[] children = f.listFiles(new FileFilter() { public boolean accept(java.io.File pathname) { if (! pathname.isFile()) { return true; } return false; } }); List tmpFolders = new ArrayList(); for (int a=0; a< children.length; a++) { tmpFolders.add(new Folder(children[a].getName())); } return (Folder[]) tmpFolders.toArray(new Folder[0]); } protected FoldersAndFiles getFoldersAndFiles(String virtualFolderPath, String type) throws Exception { String path = calculateActualServerPath(getActualServerPath(), type, virtualFolderPath); makeDirIfNotExists(path); java.io.File f = new java.io.File(new URI(path)); java.io.File[] children = f.listFiles(); List directories = new ArrayList(); List files = new ArrayList(); for (int a=0; a< children.length; a++) { if (children[a].isDirectory()) { directories.add(new Folder(children[a].getName())); } else { try { files.add(new File(children[a].getName(), fileSizeInKBytes(children[a]))); } catch(Exception e) { _log.error("cannot deal with file "+children[a], e); } } } // TODO 非常重要的一句话,这样才能使用自定义的路径。 ActionContext.getContext().put("__richtexteditorServerPath", calculateServerPath(get_serverPath(), getCurrentFolder(), getType())); return new FoldersAndFiles( (Folder[]) directories.toArray(new Folder[0]), (File[]) files.toArray(new File[0]) ); } protected CreateFolderResult createFolder(String virtualFolderPath, String type, String newFolderName) { try { String tmpPath = calculateActualServerPath(getActualServerPath(), type, virtualFolderPath); tmpPath = tmpPath+newFolderName; boolean alreadyExists = makeDirIfNotExists(tmpPath); if (alreadyExists) { return CreateFolderResult.folderAlreadyExists(); } } catch(Exception e) { _log.error(e.toString(), e); return CreateFolderResult.unknownError(); } return CreateFolderResult.noErrors(); } protected FileUploadResult fileUpload(String virtualFolderPath, String type, String filename, String contentType, java.io.File newFile) { try { String tmpDir = calculateActualServerPath(getActualServerPath(), type, virtualFolderPath); makeDirIfNotExists(tmpDir); String tmpFile = tmpDir+filename; if(makeFileIfNotExists(tmpFile)) { // already exists int a=0; String ext = String.valueOf(a); tmpFile = calculateActualServerPath(getActualServerPath(), type, virtualFolderPath)+filename+ext; while(makeFileIfNotExists(tmpFile)) { a = a + 1; ext = String.valueOf(a); if (a > 100) { return FileUploadResult.invalidFile(); } tmpFile = calculateActualServerPath(getActualServerPath(), type, virtualFolderPath)+filename+ext; } copyFile(newFile, new java.io.File(new URI(tmpFile))); return FileUploadResult.uploadCompleteWithFilenamChanged(filename+ext); } else { copyFile(newFile, new java.io.File(new URI(tmpFile))); return FileUploadResult.uploadComplete(); } } catch(Exception e) { _log.error(e.toString(), e); return FileUploadResult.invalidFile(); } } protected void unknownCommand(String command, String virtualFolderPath, String type, String filename, String contentType, java.io.File newFile) { throw new WebWorkException("unknown command "+command); } /** * * @param path * @return true if file already exists, false otherwise. */ protected boolean makeDirIfNotExists(String path) throws URISyntaxException { java.io.File dir = new java.io.File(new URI(path)); if (! dir.exists()) { if (_log.isDebugEnabled()) { _log.debug("make directory "+dir); } boolean ok = dir.mkdirs(); if (! ok) { throw new WebWorkException("cannot make directory "+dir); } return false; } return true; } /** * * @param filePath * @return true if file already exists, false otherwise */ protected boolean makeFileIfNotExists(String filePath) throws IOException, URISyntaxException { java.io.File f = new java.io.File(new URI(filePath)); if (! f.exists()) { if (_log.isDebugEnabled()) { _log.debug("creating file "+filePath); } boolean ok = f.createNewFile(); if (! ok) { throw new WebWorkException("cannot create file "+filePath); } return false; } return true; } protected void copyFile(java.io.File from, java.io.File to) throws FileNotFoundException, IOException { FileInputStream fis = null; FileOutputStream fos = null; try { if (_log.isDebugEnabled()) { _log.debug("copy file from "+from+" to "+to); } fis = new FileInputStream(from); fos = new FileOutputStream(to); int tmpByte = fis.read(); while(tmpByte != -1) { fos.write(tmpByte); tmpByte = fis.read(); } fos.flush(); } finally { if (fis != null) fis.close(); if (fos != null) fos.close(); } } protected long fileSizeInKBytes(java.io.File file) throws FileNotFoundException, IOException { FileInputStream fis = null; long size = 0; try { fis = new FileInputStream(file); size = fis.getChannel().size(); } finally { if (fis != null) fis.close(); } if (size > 0) { size = (size / 100); } if (_log.isDebugEnabled()) { _log.debug("size of file "+file+" is "+size+" kb"); } return size; } public String get_serverPath() { return _serverPath; } public void set_serverPath(String path) { _serverPath = path; } }
注意以下变量部分: 1.在MyConnector.java第 42行的变量_actualServerPath 默认为值: /WEB-INF/classes/com/opensymphony/webwork/static/richtexteditor/data/, 从源码 com.opensymphony.webwork.components.DefaultRichtexteditorConnector.java 的第 38 行 protected String _actualServerPath = "/com/opensymphony/webwork/static/richtexteditor/data/"; 以及第 51 行 String path = "file:////"+servletContext.getRealPath("/WEB-INF/classes"+actualServerPath);
可以得出。 因此,我这里改成 /user_file 文件夹作为文件上传路径,你可以自由选择。 2.在MyConnector.java第 43行的变量_serverPath 表示的是上传完附件后,选择的路径,默认为: /webwork/richtexteditor/data/ 。 从源码 com.opensymphony.webwork.components.AbstractRichtexteditorConnector.java 的第 73 行:
protected String _serverPath = "/webwork/richtexteditor/data/"; 可以看到。 但 FCKEditor 使用时,会变成: http://IP地址 /项目 /webwork/richtexteditor/data/ . 记住,这里不会带端口号的,这也是唯一美中不足的地方,如果要修改,可能要改动很大了。
因此,我这里改成也 /user_file 文件夹,为了可以在上传成功后, FCKEditor 能够选择上传成功的文件。
最后来到MyConnector.java 的第112行:
// TODO 非常重要的一句话,这样才能使用自定义的路径。 ActionContext.getContext().put("__richtexteditorServerPath", calculateServerPath(get_serverPath(), getCurrentFolder(), getType()));
这里我详细说一下: MyConnector.java 继承自 AbstractRichtexteditorConnector.java ,在 AbstractRichtexteditorConnector.java 源码146行左右有这么一段:
else if ("CreateFolder".equals(getCommand())) { _log.debug("Command "+getCommand()+" detected \n\t type="+getType()+"\n\t folderPath="+getCurrentFolder()+"\n\t newFolderName="+getNewFolderName()); ActionContext.getContext().put("__richtexteditorCommand", getCommand()); ActionContext.getContext().put("__richtexteditorType", getType()); ActionContext.getContext().put("__richtexteditorFolderPath", getCurrentFolder()); ActionContext.getContext().put("__richtexteditorServerPath", calculateServerPath(getServerPath(), getCurrentFolder(), getType())); CreateFolderResult createFolderResult = createFolder(getCurrentFolder(), getType(), getNewFolderName()); ActionContext.getContext().put("__richtexteditorCreateFolder", createFolderResult); return CREATE_FOLDER; }在这段代码的第7行, 计算出的路径永远是父类里默认的 /webwork/richtexteditor/data/ , 所以在它的子类 MyConnector.java ,我们重新赋值了一下: // TODO 非常重要的一句话,这样才能使用自定义的路径。 ActionContext.getContext().put("__richtexteditorServerPath", calculateServerPath(get_serverPath(), getCurrentFolder(), getType()));
这样,就能保证我们刚才定义的 user_file 文件夹生效,文件通过 FCKEditor 上传完后,通过服务器端浏览,可以看到我们上传的图片,然后点确定就可以了。不过,如果你不是默认的 80 端口,那么可能要手动改一改,真是有点遗憾。最后一步,也是最重要的一步,配置我们刚才写的 MyConnector.java
<package name="richtexteditor-upload" extends="webwork-default" namespace="/webwork/richtexteditor/editor/filemanager/upload"> <action name="uploader" class="com.leo.controller.MyConnector" method="upload"> <result name="richtexteditorFileUpload" /> </action> </package> <package name="richtexteditor-browse" extends="webwork-default" namespace="/webwork/richtexteditor/editor/filemanager/browser/default/connectors/jsp"> <action name="connector" class="com.leo.controller.MyConnector" method="browse"> <result name="getFolders" type="richtexteditorGetFolders" /> <result name="getFoldersAndFiles" type="richtexteditorGetFoldersAndFiles" /> <result name="createFolder" type="richtexteditorCreateFolder" /> <result name="fileUpload" type="richtexteditorFileUpload" /> </action> </package> 一切完成,直接在 JSP 里调用即可: <ww:richtexteditor toolbarCanCollapse="true" width="700" label="" name="txt" value="可以正常上传了。" />
二 Struts2 + Dojo
Struts2 部分更简单了。虽然 Struts2 不直接支持 FCKeditor ,但直接 Dojo ,而且个人更喜欢这种简洁的风格,我用的是 Struts2.0.11 版本进行测试,使用时,只要配置两个地方 1. 在 HTML<head /> 标签之间,加上 <s:head theme="ajax"/>2. 将 textarea 加上主题 <s:textarea theme="ajax" />
就这么简单。
-------------------------------------------------------------------------------------- 最近根据网上的文章,更新了一下这个版本。请下载webwork_fckeditor完美解决.rar
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发表时间:2008-04-29
姐姐!connector人家是写了得!
你的代码就 改了人家部分""的String!! 这也叫你写的?? |
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发表时间:2008-06-12
感谢
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发表时间:2008-10-11
楼主,你好,我遇到了一个问题不知道你能不能 帮我解决一下,我用了sitemesh+struts2写的,按照你说的第二个方案,每次进入页面的时候textarea把当前页面的所有内容都加了进来,不知道我说清楚没有..
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