我试图通过wifi&发送NSString它没有错误地工作。对于NSString,我在iOS应用程序中都使用了NSUTF8StringEncoding
。 Java服务器端。
现在我想通过wifi将NSData(图像)发送到我的java服务器。我将使用此代码将图像发送到java服务器。
NSData *newData = UIImagePNGRepresentation([UIImage imageNamed:@"Default.png"]);
int index = 0;
int totalLen = [newData length];
uint8_t buffer[1024];
uint8_t *readBytes = (uint8_t *)[newData bytes];
while (index < totalLen) {
if ([outputStream hasSpaceAvailable]) {
int indexLen = (1024>(totalLen-index))?(totalLen-index):1024;
(void)memcpy(buffer, readBytes, indexLen);
int written = [outputStream write:buffer maxLength:indexLen];
if (written < 0) {
break;
}
index += written;
readBytes += written;
}
}
我的问题是,我可以在java服务器中读取NSData吗?如果我不能解决什么问题?我应该使用编码方法吗? 还有人可以给我一个示例Java服务器代码来以某种方式读取NSData或图像....
答案 0 :(得分:3)
private void saveFile(Socket socket, File receivingFile) {
try {
FileOutputStream wr = new FileOutputStream(receivingFile);
byte[] buffer = new byte[socket.getReceiveBufferSize()];
int bytesReceived = 0;
while ((bytesReceived = socket.getInputStream().read(buffer)) > 0) {
wr.write(buffer, 0, bytesReceived);
}
wr.close();
setLogMessege("SaveFile", "File Written");
socket.close();
} catch (IOException e) {
try {
socket.close();
} catch (IOException ex) {
Logger.getLogger(AcceptCameraImages.class.getName()).log(Level.SEVERE, null, ex);
}
setLogMessege("SaveFile", e.getMessage());
}`enter code here`