Android网络操作（上传下载等）(4)

            /* 设定DataOutputStream */ 
            ds = new DataOutputStream(con.getOutputStream()); 
            ds.writeBytes(twoHyphens + boundary + end); 
            ds.writeBytes("Content-Disposition: form-data; " + "name=\"Filedata\";filename=\"" + newName + "\"" + end); 
            ds.writeBytes(end); 
 
            /* 取得文件的FileInputStream */ 
            // FileInputStream fStream = new FileInputStream(uploadFile); 
            /* 设定每次写入1024bytes */ 
            int bufferSize = 1024; 
            byte[] buffer = new byte[bufferSize]; 
 
            int length = -1; 
            /* 从文件读取数据到缓冲区 */ 
            while ((length = fStream.read(buffer)) != -1) { 
                /* 将数据写入DataOutputStream中 */ 
                ds.write(buffer, 0, length); 
            } 
            ds.writeBytes(end); 
            ds.writeBytes(twoHyphens + boundary + twoHyphens + end); 
 
            ds.flush(); 
 
            /* 取得Response内容 */ 
            InputStream is = con.getInputStream(); 
            int ch; 
            StringBuffer b = new StringBuffer(); 
            while ((ch = is.read()) != -1) { 
                b.append((char) ch); 
            }