struts2 文件上传

 

html

		<form name="form1" action="lec_uploadFile.action" method="post" enctype="multipart/form-data">	
		 
			 	<table>
 				<tr>
					<td>file</td>
					<td><input type="file" name="file"/> </td>
				</tr>
				<tr>
					<td> 
						<input type="submit" value="上传">
					 </td>
				</tr>
						
			</table>
		</form>

 

Action

	
	//文件
	private File file;
	//文件名字
	private String fileFileName;
	//文件类型
	private String fileContentType;

	/**
	 * 图片文件文件上传
	 * @return
	 * @throws Exception
	 */
	public String uploadFile()  {
		boolean isSuccess = saveFile( file,fileFileName );
		if(isSuccess==false ){
			return "fail";
		}
		return "success";
	}


 
	private boolean saveFile(File lecture , String fileName  )  {
		
//		String secondPath = savepath.replace("\\",  File.separator ).replace("/",  File.separator );
		String rootPath = ServletActionContext.getServletContext().getRealPath("/"); 
		String saveDir = rootPath+ "file"+File.separator +File.separator+"images";
		File saveDirFile = new File(saveDir);
		
		if( !saveDirFile.exists()){
			saveDirFile.mkdirs();
		}
		BufferedOutputStream bos=null ;
		BufferedInputStream bis=null ;
		try {
			bis = new  BufferedInputStream( new FileInputStream(lecture));
			bos = new BufferedOutputStream(new FileOutputStream( new File( saveDir ,fileName) ) );
			byte[] bs = new byte[1024];
			int len;
			while( (len = bis.read(bs, 0, 1024)) >0  ){
				bos.write(bs, 0,len );
			}
			bis.close();
			bos.close();
			lecture.delete();
		} catch ( Exception e) {
			e.printStackTrace();
			return false;
		} finally{
			try {
				if(bis!=null ){
					bis.close();
				}
				if(bos!=null){
					bos.close();
				}
			} catch (IOException e) {
				e.printStackTrace();
				return false;
			}
		}
		return true;
		
	}