利用Common-Fileupload上传文件图片

一,介绍

  common-fileupload是appache的开源组件,基于该组件可以轻松实现文件上传的功能,strust框架的文件上传功能也是基于该组件。

二,使用

  1,导入两个jar包:common-fileupload.jar和common-io.jar,fileupload依赖于io包,两个jar包可到appache官网上下载.

  2,示例性代码(基于官方示例代码改动):

// Check that we have a file upload request
            boolean isMultipart = ServletFileUpload.isMultipartContent(request);
            if (isMultipart) {
                // Create a new file upload handler
                ServletFileUpload upload = new ServletFileUpload();
                // Parse the request
                FileItemIterator iter = upload.getItemIterator(request);
                while (iter.hasNext()) {
                    FileItemStream item = iter.next();
                    String name = item.getFieldName();
                    InputStream stream = item.openStream();
                    // 普通表单域
                    if (item.isFormField()) {
                        System.out.println("Form field " + name
                                + " with value " + Streams.asString(stream)
                                + " detected.");
                    } else { // 文件域
                        System.out.println("File field " + name
                                + " with file name " + item.getName()
                                + " detected.");
                        String filename = item.getName();
                        if (filename != null) { // 解决IE浏览器传递的是附件全路径的问题,Firefox传递的是文件名
                            filename = FilenameUtils.getName(filename);
                        }
                        // Process the input stream
                        if (stream.available() != 0) // 上传的附件不为空,则存储到磁盘中
                        {
                            Streams.copy(stream, new FileOutputStream(
                                    "I:/temp/" + filename), true);
                        }
                    }
                }
            }

 

posted @ 2013-10-06 19:20  剑志  阅读(816)  评论(0编辑  收藏  举报