课件播放系统组件使用方法
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搭建课件上传下载及播放
文件上传模块
前台页面提交文件
前台页面验证脚本
后台上传模块
public class AddVideoAction extends ActionSupport{
private static final long serialVersionUID = 1L;
private static final int BUFFER_SIZE = 8 *1024;
private File uploadFile;
private VideoService vs;
private String uploadFileFileName;
private String uploadFileContentType;
public VideoService getVs() {
return vs;
}
public void setVs(VideoService vs) {
this.vs = vs;
}
//上传到服务器
private static void copy(File src,File dst){
try{
InputStream in = null;
OutputStream os = null;
try{
in = new BufferedInputStream(new FileInputStream(src));
os = new BufferedOutputStream(new FileOutputStream(dst),BUFFER_SIZE);
byte []buffer = new byte[BUFFER_SIZE];
while( in.read(buffer) > 0){
os.write(buffer);
}
}finally{
if(null != in){
in.close();
}
if(null != os){
os.close();
}
}
}catch (Exception e){
e.printStackTrace();
}
}
public String execute()throws Exception{
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
if(null==ActionContext.getContext().getSession().get("currentAdmin"))
return"login";
String fileName = uploadFileFileName;
fileName = fileName.replace(" ","");
String playFileName = sdf.format(new Date())+".flv";
File playFile = new File(ServletActionContext.getServletContext().getRealPath("/upload/video/play") + "\\"+ playFileName);
File downloadFile = new File(ServletActionContext.getServletContext().getRealPath("/upload/video/download") + "\\" + fileName);
copy(uploadFile,downloadFile);
copy(uploadFile,playFile);
if( 1 == vs.addVideo(downloadFile,playFileName))
return SUCCESS;
return ERROR;
}
//文件的扩展名
public static String getExtention(String fileName){