摘要:

    最近在使用Liferay開發(fā)一個門戶網(wǎng)站的過程中碰到默認(rèn)的在線文章編輯器無法滿足用戶需求的問題。Liferay默認(rèn)的文章編輯器功能比較簡單，且可擴(kuò)展性較差。經(jīng)過再三權(quán)衡，決定采用tinyMCE作為Liferay的默認(rèn)在線文章編輯器。但是，官方下載的tinyMCE的advimage插件不具有圖片上傳的功能，需要對該插件進(jìn)行擴(kuò)展。經(jīng)過反復(fù)琢磨，終于解決了以上的問題。現(xiàn)在把解決方法寫出來，希望能給有需要的網(wǎng)友一點幫助。

   最近在使用Liferay開發(fā)一個門戶網(wǎng)站的過程中碰到默認(rèn)的在線文章編輯器無法滿足用戶需求的問題。Liferay默認(rèn)的文章編輯器功能比較簡單，且可擴(kuò)展性較差。經(jīng)過再三權(quán)衡，決定采用tinyMCE作為Liferay的默認(rèn)在線文章編輯器。但是，官方下載的tinyMCE的advimage插件不具有圖片上傳的功能，需要對該插件進(jìn)行擴(kuò)展。經(jīng)過反復(fù)琢磨，終于解決了以上的問題。現(xiàn)在把解決方法寫出來，希望能給有需要的網(wǎng)友一點幫助。

    需要注重的是早期的liferay-3.6.1集成tinyMCE存在問題，在IE瀏覽器環(huán)境下不能正確顯示編輯器，顯示“timyMCE為定義”錯誤。在Firefox瀏覽器下可以正確顯示，但是頁面初始化時非常慢。經(jīng)過很多嘗試這些問題忍讓沒有解決，估計問題與Liferay的頁面緩存有關(guān)。另外在liferay-3.6.1環(huán)境下上傳圖片時會出現(xiàn)圖片文件大小發(fā)生變化，且文件被破壞的問題。Liferay的更新版本已經(jīng)發(fā)布，且以上存在的問題可能與Liferay本身的實現(xiàn)機(jī)制有關(guān)，解決這些問題可能比較棘手（呵呵，假如哪位大俠知道還望不吝賜教啊！），因此實現(xiàn)中使用的軟件版本如下：
  tinyMCE：tinymce_2_0_8
   Liferay：liferay-portal-tomcat-4.1.2

  在使用tinyMCE前先解決tinyMCE的中文化以及中文字體的使用問題。

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作者:李樂鑫
原文:http://www.matrix.org.cn/resource/article/2006-11-19/Liferay+tinyMCE_c6b2d4d0-7771-11db-bdce-bdc029e475a1.Html
要害字:Liferay;tinyMCE

（一）tinyMCE的中文化以及中文字體
    中文化方法：
    tinyMCE的中文化問題解決非常簡單。首先到tinyMCE的官方下載中文語言包tinymce_lpackage_zh-cn.jar，并將其解壓（假設(shè)解壓后的路徑為{$LANGUAGE_PATH}）。然后將解壓后的{$LANGUAGE_PATH}/tinymce/jscripts/tiny_mce目錄下的所有文件復(fù)制到liferay安裝路徑（假設(shè)liferay的安裝路徑為{$LIFERAY_HOME}）的/webapps/ROOT/html/js/editor/tinymce目錄下，修改該路徑下的timymce.jsp，在tynyMCE.init中增加配置項 language : "zh_cn"。

    中文字體設(shè)置方法：
    默認(rèn)情況下，tinyMCE編輯工具欄的字體下拉框中沒有中文字體，需要在下拉框中增加需要的中文字體。修改方法如下，分別修改{$LIFERAY_HOME}/webapps/ROOT /html/ js/editor/ tinymce/themes/  目錄下的兩個子目錄advanced和simple目錄下的editor_template.js。在var iFonts='…'和var nFonts='…'中增加中文字體，如增加“宋體=宋體;方正姚體=方正姚體”等。

（二）集成Liferay和tinyMCE
     1．下載tinymce_2_0_8.zip，并解壓（假設(shè)解壓目錄為{$TINYMCE_PATH}）。然后將解壓后的文件夾{$TINYMCE_PATH}/tinymce/jscripts/tiny_mce復(fù)制到{$LIFERAY_HOME}/ /webapps/ROOT/html/js/editor下，并改名為tinymce；
    2． 設(shè)置Liferay應(yīng)用的默認(rèn)html編輯器為tinymce；（可以修改配置文件system.PRoperties或直接修改{$LIFERAY_HOME}/webapps/ROOT/html/js/editor/editor.jsp）； 修改后的editor.jsp如下：  

<%@ page import="com.liferay.portal.util.Constants" %>
<%@ page import="com.liferay.portal.util.PropsUtil" %>
<%@ page import="com.liferay.util.BrowserSniffer" %>
<%@ page import="com.liferay.util.ParamUtil" %>
<%

                         String editorImpl = "simple";
if (BrowserSniffer.is_rtf(request)) {
 editorImpl = ParamUtil.get(request, "editorImpl", PropsUtil.get(EDITOR_WYSIWYG_IMPL_KEY));
}
//editorImpl = "fckeditor";
//editorImpl = "liferay";
//editorImpl = "simple";
editorImpl = "tinymce";
// Resin won't allow dynamic content inside the jsp:include tag
RequestDispatcher rd = application.getRequestDispatcher(Constants.TEXT_HTML_DIR + 
"/js/editor/" + editorImpl + ".jsp");
rd.include(request, response);
%>
<%--<jsp:include page='<%= Constants.TEXT_HTML_DIR + "/js/editor/" + editorImpl + ".jsp" %>' />--%>

（三）為tinyMCE增加圖片上傳功能
      本實現(xiàn)采用Struts實現(xiàn)圖片的上傳。 步驟如下：
    1．編寫文件上傳類。代碼清單如下：
     FileUploadAction.java代碼清單如下：
    

package com.family.fileupload.web.action;
      import java.util.Calendar;
      import java.util.Date;
      import javax.servlet.http.HttpServletRequest;
      import javax.servlet.http.HttpServletResponse;
      import org.apache.struts.action.ActionForm;
      import org.apache.struts.action.ActionForward;
      import org.apache.struts.action.ActionMapping;
      import org.apache.struts.actions.DispatchAction;
      import com.family.fileupload.web.form.FileUploadForm;
      import com.family.fileupload.web.utils.FileUpload;
      public class FileUploadAction extends DispatchAction {
      public ActionForward uploadImage(ActionMapping mapping, ActionForm form,
          HttpServletRequest request, HttpServletResponse response) throws Exception {
          FileUploadForm uploadForm = (FileUploadForm) form;
          FileUpload fu = new FileUpload(uploadForm.getFile());

                                   String realPath = this.getRealPath("/pictures");
          String fileName = this.getFileKeyRule() + "." + fu.getExtendName().toLowerCase();
          String filePath = realPath + "/" + fileName;
          fu.saveToFile(filePath);
          request.setAttribute("fileUrl", this.getRootUrl(request) + "/pictures/" + fileName);
          return mapping.findForward("image.sUCcess");
      } 
      private String getRootUrl(HttpServletRequest request) {
          StringBuffer buf = request.getRequestURL();
          int length = request.getRequestURI().length();
          buf.delete(buf.length() - length, buf.length());
          return buf.toString();
      }
      private String getRealPath(String floder) {
          return this.getServlet().getServletConfig().getServletContext().getRealPath(floder);
     }
     private String getFileKeyRule() {
          Calendar cal = Calendar.getInstance();
          cal.setTime(new Date());
          int iYear = cal.get(Calendar.YEAR);
          int iMonth = cal.get(Calendar.MONDAY) + 1;
          int iDay = cal.get(Calendar.DAY_OF_MONTH);
          int iHour = cal.get(Calendar.HOUR_OF_DAY);
          int iMinute = cal.get(Calendar.MINUTE);
          int iSecond = cal.get(Calendar.SECOND);
          StringBuffer strKey = new StringBuffer(15);
          strKey.append(iYear);
          if (iMonth < 10) {
              strKey.insert(4, '0');
              strKey.insert(5, iMonth);

                                   } else {
              strKey.insert(4, iMonth);
          }
          if (iDay < 10) {
              strKey.insert(6, '0');
              strKey.insert(7, iDay);
          } else {
              strKey.insert(6, iDay);
          }
          if (iHour < 10) {
              strKey.insert(8, '0');
              strKey.insert(9, iHour);
          } else {
              strKey.insert(8, iHour);
          }
          if (iMinute < 10) {
              strKey.insert(10, '0');
              strKey.insert(11, iMinute);
          } else {
              strKey.insert(10, iMinute);
          }
          if (iSecond < 10) {
              strKey.insert(12, '0');
              strKey.insert(13, iSecond);
          } else {
              strKey.insert(12, iSecond);
          }
           return strKey.toString();
       }
   }

    FileUploadForm.java代碼清單如下：

   package com.family.fileupload.web.form;
      import org.apache.struts.action.ActionForm;
      import org.apache.struts.upload.FormFile;
      public class FileUploadForm extends ActionForm {

                                   private static final long serialVersionUID = 1L;
          private FormFile file = null;
          public FormFile getFile() {
               return file;
          }
          public void setFile(FormFile file) {
               this.file = file;
          }
     }

     FileUpload.java代碼清單如下：
  

package com.family.fileupload.web.utils;
     import java.io.FileNotFoundException;
     import java.io.FileOutputStream;
     import java.io.IOException;
     import java.io.InputStream;
     import java.io.OutputStream;
     import org.apache.struts.upload.FormFile;
     public class FileUpload {
         private FormFile file;
         private int fileSize;
         private String fileName;
         private String extendName;
         private String contentType;
         public FileUpload (FormFile file) {
           this.file = file;
           fileName = this.file.getFileName();
           fileSize = this.file.getFileSize();
           contentType = this.file.getContentType();
           int position = this.file.getFileName().indexOf(".");
           extendName = this.file.getFileName().substring(position + 1, 
                        this.file.getFileName().length());
      }
      public void saveToFile(String fileName) {
          try {
            InputStream is = this.file.getInputStream();
            int bytesRead = 0;

                                     byte[] buffer = new byte[8912];
            OutputStream os = new FileOutputStream(fileName);
            while ((bytesRead = is.read(buffer, 0, 8912)) != -1) {
                 os.write(buffer, 0, bytesRead);
            }
            is.close();
            os.close();
           } catch (FileNotFoundException e) {
                e.printStackTrace();
           } catch (IOException e) {
                e.printStackTrace();
           }
      }
      public String getContentType() {
       return contentType;
      }
      public String getExtendName() {
           return extendName;
      }
      public FormFile getFile() {
           return file;
      }
      public String getFileName() {
           return fileName;
      }
      public int getFileSize() {
           return fileSize;
      }}

    

2．將以上文件編譯后打包成 upload.jar，并發(fā)布到Liferay應(yīng)用的包路徑下（{$LIFERAY_HOME}/webapps/ROOT/WEB-INF/lib）；

3．編寫upload.jsp并復(fù)制到liferay應(yīng)用的的{$LIFERAY_HOME}/webapps/ROOT/html/js/editor/ tinymce/ plugins/advimage/目錄下；

Upload.jsp的代碼清單如下：  

     <form action="/c/portal/fileUpload?method=uploadImage" 
           method="post" enctype="multipart/form-data">
       <input type="file" name="file">
       <input type="submit">
     </form> 

4．編寫imagePath.jsp并復(fù)制到/webapps/ROOT/html下；
代碼清單如下：

 <script>   
    function insertImage() {   

                               var imageUrl = '<%=(String) request.getAttribute("fileUrl")%>'; 
      if (imageUrl != '') {
       opener.document.all("src").value = imageUrl;
       window.close();
      }
   }
  </script>

5． 在tinymce.jsp中增加如下代碼

   */
   function fileBrowserCallBack(field_name, url, type, win) {    
     //打開文件上傳窗口
     win.open("upload.jsp");   
   }

6． 在liferay的配置文件struts-config.xml或struts-config-ext.xml文件中增加如下配置：
增加formbean配置：

 <form-beans>
     ......
     <form-bean name="fileUploadForm" 
     type="com.family.fileupload.web.form.FileUploadForm" />
 </form-beans>

增加action配置：

 <action-mappings>
     ……
     <action
           name="fileUploadForm"
           path="/portal/fileUpload"
           scope="request"
           type="com.family.fileupload.web.action.FileUploadAction"
           parameter="method">
       <forward name="file.success" path="/filePath.jsp"/>
       <forward name="image.success" path="/imagePath.jsp"/>
    </action>
 </action-mappings>

   注：本實現(xiàn)中有關(guān)文件上傳的組件與liferay集成在同一個web應(yīng)用中，事實上也可以根據(jù)實際情況將文件上傳的組件獨立成一個單獨的web應(yīng)用。但是需要對tinymce.jsp代碼做適當(dāng)?shù)男薷摹４蠹也环猎囋嚕海?/P>