文件上传-ios端图片保存到后台(针对小格式图片)

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public class FileCommon{

/**

*

*@param file上传的文件

*@param fileName上传的文件名

*@param savePath需要保持的路径

*@return

*@throws FileNotFoundException

*/

@SuppressWarnings({ "deprecation", "unused" })

public static String upload(File file,String fileName, String savePath) throws FileNotFoundException

{

FileInputStream fis = null;

FileOutputStream fos = null;

String saveRootPath =

ServletActionContext.getRequest().getRealPath("/");

saveRootPath = saveRootPath+savePath;

File fileParent = new File(saveRootPath);// 创建保存文件的上级文件夹

if (!fileParent.exists())

{

boolean flag = fileParent.mkdirs();

if(!flag)

{

}

}

//String ex = StringTools.getExtention(fileName);

//String date = TimeTools.getStringByFormat(new Date(), "yyyyMMddHHmmss");

//fileName = name+"."+ex;

fis = new FileInputStream(file);

fos = new FileOutputStream(saveRootPath + fileName);

byte[] buffer = new byte[1024];

int len = 0;

try

{

while ((len = fis.read(buffer)) != -1)

{

fos.write(buffer, 0, len);

}

}

catch (FileNotFoundException e)

{

System.out.println("Exception: FileNotFoundException");

e.printStackTrace();

}

catch (IOException e)

{

System.out.println("Exception: IOExcption");

e.printStackTrace();

}

finally

{

try

{

if (fis != null)

{

fis.close();

}

}

catch (IOException e)

{

System.out.println("FileInputStream close failed");

e.printStackTrace();

}

if (fos != null)

{

try

{

fos.close();

}

catch (IOException e)

{

System.out.println("FileOutputStream close failed");

e.printStackTrace();

}

}

}

return saveRootPath +fileName;

}

//读取ios端传输过来的附件信息

public static String sendData(String fileName) throws Exception { String data = null;

File file = new File(fileName);

if (file.exists()) {

InputStream is = new FileInputStream(file);

byte[] bytes = new byte[is.available()];

is.read(bytes);

BASE64Encoder encoder = new BASE64Encoder();

data = encoder.encode(bytes);

System.out.println(data);

}

return data;

}

//解析ios端上传的文件,并保存到后台

@SuppressWarnings("deprecation")

public static String deal(String savePath,String fileName, String data) throws IOException {

String saveRootPath =

ServletActionContext.getRequest().getRealPath("/");

String middlePath = saveRootPath+savePath;

File file = new File(middlePath);

if (!file.exists())

{

boolean flag = file.mkdirs();

if(!flag)

{

}

}

OutputStream fos = new FileOutputStream(middlePath+fileName);

BASE64Decoder decoder = new BASE64Decoder();

byte[] bytes = decoder.decodeBuffer(data);

InputStream is = new ByteArrayInputStream(bytes);

int length = 1024 * 50;

byte[] buff = new byte[length > is.available() ? is.available() : length];

while (is.read(buff) != -1) {

fos.write(buff);

if (length > is.available()) {