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我正在编写处理服务器端和客户端的iPhone应用程序。我遇到的问题是我无法从我的应用程序(客户端)发送任何数据到我的Java程序(服务器端)。我现在有点困难,任何帮助将不胜感激。无法将数据从obj-c客户端发送到java服务器
我的OBJ-C代码(客户端):
- (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代码(服务器):
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();
}
}
什么情况是,当我从我的应用程序发送数据的代码在我的服务器方永远不会过去
msg = in.readLine()。当我终止应用程序端的连接时,它会打印出收到的字符串是null。
你从哪里弄来'in'? –