SSH--文件上传、删除

爱被打了一巴掌 2024-02-18 15:39 56阅读 0赞

public String execute(){
    		//获取当前web工程下的/pic目录的在本机的绝对路径，如果没有则自动创建
    		String targetPath = ServletActionContext.getServletContext().getRealPath("/pic");
    		//重新设置文件名字，非必须
    		String targetFileName = generateFileName(fileFileName);
    	    File targetFile = new File(targetPath, targetFileName);
    
    	    try {
    			FileUtils.copyFile(file, targetFile);
    			session.put("filePath", "pic/"+targetFileName);
    		} catch (IOException e) {
    			System.out.println("文件上传失败!");
    			return "reUpload";
    		}
    		return "success";
    	}
    	
    	public String generateFileName(String fileName){
    		String formateDate = new SimpleDateFormat("yyMMddHHmmss").format(new Date());
    		int random = new Random().nextInt(10000);
    		int position = fileName.lastIndexOf(".");
    		String subStr = fileName.substring(position);
    		return formateDate+random+subStr;
    	}

文件类型、文件名字命名规则：

private File file ;
    	private String fileFileName;
    	private String fileContentType;

File的对象名+FileName;

File的对象名+ContentType

jsp页面：

删除.....................................

/*
         * 删除web项目下的文件
         */
        public void deleteWebFile(String fileName){
        	String targetPath = ServletActionContext.getServletContext().getRealPath("/pic");
        	fileName = fileName.substring(fileName.lastIndexOf("/"));
        	File file = new File(targetPath,fileName);
        	//拼凑模型：D:\myeclipse1\workspace\.metadata\.me_tcat7\webapps\ZXPM\pic/1710121639414792.jpg
        	if(file.exists()){
        		file.delete();
        	}
        }