通过FileService上传文件

用FileService把本地文件上传到服务器上，主要用于在苍穹微服务后台上传下载文件。

案例如下：

需求：将本地D:/testUpload.pptx文件上传到服务器上指定目录/SYS/BASE/dev1212/test/testUpload.pptx

实现：

//1.创建FileService 对象 

//附件 

FileService fs=FileServiceFactory.getAttachmentFileService(); 

// 图片 

//FileService fs = FileServiceFactory.getImageFileService(); 

//2.构造FileItem对象 

String fileName = ("testUpload.pptx") ; 

String uploadPath = "/SYS/BASE/dev1212/test/testUpload.pptx"; 

FileItem fi = new FileItem(fileName , uploadPath ,new FileInputStream("D:/testUpload.pptx")); fi.setCreateNewFileWhenExists(true);//附件存在是否创建新的文件（默认为false覆盖上传） 

//3.上传 

String path= fs.upload(fi); 

//4. 获取文件流 

InputStream in = fs.getInputStream(path); 

//5.删除 

fs.delete(path);