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我正在編寫處理服務器端和客戶端的iPhone應用程序。我遇到的問題是我無法從我的應用程序(客戶端)發送任何數據到我的Java程序(服務器端)。我現在有點困難,任何幫助將不勝感激。無法將數據從obj-c客戶端發送到java服務器
我的OBJ-C代碼(客戶端):
- (BOOL) initConnection: (NSString *) ipAddr {
CFWriteStreamRef writeStream;
CFStreamCreatePairWithSocketToHost(NULL, (__bridge CFStringRef)ipAddr, 4444, NULL, &writeStream);
if(!writeStream)
return NO;
outStream = (__bridge NSOutputStream *) writeStream;
[outStream setDelegate:self];
[outStream scheduleInRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];
[outStream open];
self.data = [[NSData alloc] init];
return YES;
- (void) sendCommand: (NSString *) command {
NSLog(@"Command that was sent to method: %@", command);
self.data = [NSData dataWithBytes:@"This is a test\n" length:16];
int bytes = [outStream write:[self.data bytes] maxLength:[self.data length]];
我的Java代碼(服務器):
private void handleCommands() {
try {
do {
System.out.println("Right before reading socket");
msg = in.readLine();
System.out.println("Received: " + msg);
} while(!EOC);
} catch(IOException e) {
e.printStackTrace();
}
}
什麼情況是,當我從我的應用程序發送數據的代碼在我的服務器方永遠不會過去
msg = in.readLine()。當我終止應用程序端的連接時,它會打印出收到的字符串是null。
你從哪裏弄來'in'? –