1、使用富文字編輯器實現檔案的上傳和下載
1、環境配置
需要用到的檔案包：
ckeditor_3.6.2
ckeditor_3.6.2
ckeditor-java-core-3.5.3
1.首先把ckeditor、ckfinder匯入到WebContent目錄下面（注意把樣例_sameple刪除掉）。
2.然後引入jar包：把ckfinder_java_2.4.3/ckfinder/CKFinderJava-2.4.3/WEB-INF/lib目錄下的jar包全部引入到專案，還需要引入一個jar包：在ckeditor-java-core-3.5.3下的ckeditor-java-core-3.5.3.jar包引入。
3.再引入ckfinder_java_2.4.3/ckfinder/CKFinderJava-2.4.3/WEB-INF下的config.xml放到專案的WEB-INF下面。修改裡面的：
<enabled>true</enabled>
<baseURL>/struts2UpAndDown/userfiles/</baseURL>：這是上傳檔案的儲存路徑
4.把ckfinder_java_2.4.3/ckfinder/CKFinderJava-2.4.3/WEB-INF下的web.xml裡面的servlet配置複製到專案的中web.xml檔案裡面。但在專案中的struts2的配置的對映路徑不能為/*而改為*.action或*.do。或者定義一個過濾器。
5.修改config.js下的專案路徑：
config.filebrowserBrowseUrl = '/專案名/ckfinder/ckfinder.html' ; config.filebrowserImageBrowseUrl = '/專案名/ckfinder/ckfinder.html?type=Images' ; config.filebrowserFlashBrowseUrl = '/專案名/ckfinder/ckfinder.html?type=Flash' ; config.filebrowserUploadUrl = '/專案名/ckfinder/core/connector/java/connector.java?command=QuickUpload&type=Files' ; config.filebrowserImageUploadUrl = '/專案名/ckfinder/core/connector/java/connector.java?command=QuickUpload&type=Images' ; config.filebrowserFlashUploadUrl = '/專案名/ckfinder/core/connector/java/connector.java?command=QuickUpload&type=Flash' ; config.filebrowserWindowWidth = '1000'; config.filebrowserWindowHeight = '700'; config.language = "zh-cn" ;
這樣富文字編輯器的環境配置完成。
由於富文字編輯器功能太多，可以破解減少功能：
-------------------------------------------------關於破解------------------------------------------
圖片預覽文字替換cheditor/config.js
config.image_previewText=””;
---------------------------------------------------------------------
ckfinder/ckfinder.js
瀏覽器左下角資訊不展示 下面程式碼註釋
if(!D)this.dV().getChild(0).appendHtml(A||B||y!=4?t:u+”\x3c\142\x3e”..)
--------------------------------------------------------------------------
隱藏版權資訊：
找到<h4class=’message_content’>
改為<h4style=’display:none;’class=’message_content’>
2、實現上傳
在頁面中引用：
<script type="text/javascript" src="<%=request.getContextPath() %>/ckeditor/ckeditor.js"></script>
<script type="text/javascript" src="<%=request.getContextPath() %>/ckfinder/ckfinder.js"></script>
</head>
<body>
<form action="cktest.action" method="post">
<textarea rows="10" cols="80" id="editor" name="editor"class="ckeditor">請輸入...</textarea>
<input type="submit" value="儲存">
</form>
</body>
上傳：其實就是在Action裡面定義一個與name相同的名字再set/get就可以了
public class CkAction extends ActionSupport {
//定義一個接收富文字資訊的字串
private String editor;
public String getEditor() {
return editor;
}
public void setEditor(String editor) {
this.editor = editor;
}
@Override
public String execute() throws Exception {
System.out.println("富文字資訊" + editor);
// <a href="/ckscxz/userfiles/files/1421332943720.txt">//這是上傳的附件
//實現附件的下載
//擷取以<a標籤開頭的位置
int beginIndex = editor.indexOf("<a");
while(beginIndex != -1){
int endIndex = editor.indexOf(">",beginIndex) + 1;
String beginStr = editor.substring(0,beginIndex);
String endStr = editor.substring(endIndex);
String str = editor.substring(beginIndex, endIndex);
//擷取需要下載的檔名稱
String filename = str.substring(str.lastIndexOf("/")+1, str.lastIndexOf("\""));
//需要下載的附件名稱
String replace = "<a href=download.action?filename=" + filename + " /a>";
editor = beginStr + replace + endStr;
beginIndex = editor.indexOf("<a",endIndex);
}
return SUCCESS;
}
}
3、展示頁面：show.jsp
${editor }
4、實現附件下載：
public class FileDownloadAction extends ActionSupport {
public String inputPath;
public String filename;
public String getFilename() {
return filename;
}
public void setFilename(String filename) {
this.filename = filename;
}
public String getInputPath() {
return inputPath;
}
public void setInputPath(String inputPath) {
this.inputPath = inputPath;
}
@Override
public String execute() throws Exception {
return SUCCESS;
}
public InputStream getInputStream() throws IOException{
String path = ServletActionContext.getServletContext().getRealPath("/userfiles/files");
String filepath = path + "\\" + filename;
File file = new File(filepath);
return FileUtils.openInputStream(file);
// return ServletActionContext.getServletContext().getResourceAsStream(inputPath);
}
public String getDownloadFileName(){
String downloadFileName ="";
try {
downloadFileName = URLEncoder.encode(filename,"UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return downloadFileName;
}
}