我有一个通过网络服务上传照片的应用程序。过去,我将文件加载到流中,然后转换为 Base64。然后我通过 OutputStreamWriter 的 write() 方法发布了结果字符串。现在,Web 服务发生了变化,它需要 multipart/form-data 而不需要 Base64。
因此,不知何故,我需要按原样发布该文件的字符而不进行转换。我确定我已经接近了,但我得到的只是内容长度下溢或溢出。奇怪的是,在调试器中,我可以看到我的缓冲区长度与我发布的字符串长度相同。这是我正在做的事情,希望有足够的代码:
// conn is my connection
OutputStreamWriter dataStream = new OutputStreamWriter(conn.getOutputStream());
// c is my file
int bytesRead = 0;
long bytesAvailable = c.length();
while (bytesAvailable > 0) {
byte[] buffer = new byte[Math.min(12288, (int)bytesAvailable)];
bytesRead = fileInputStream.read(buffer, 0, Math.min(12288, (int)bytesAvailable));
// assign the string if needed.
if (bytesRead > 0) {
bytesAvailable = fileInputStream.available();
// I've tried many encoding types here.
String sTmp = new String(buffer, "ISO-8859-1");
// HERE'S the issue. I can't just write the buffer,
dataStream.write(sTmp);
dataStream.flush();
// Yes there's more code, but this should be enough to show why I don't know what I'm doing!