使用POST请求网络数据，进行账号的…

receiveData声明为属性。仅供参考！

//注册

-(void)zhuce:(id)sender

{

    NSLog(@"注册");

    NSURL *url = [NSURL URLWithString:@"http://192.168.1.123/upload/test5.php"];//url网址

    NSMutableURLRequest *request =[[NSMutableURLRequest alloc]initWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10];

    [request setHTTPMethod:@"POST"]; //设置post发送请求

    NSString *str = [NSString stringWithFormat:@"act=signup&username=zs50&password=ls&email=abc@11.com"];//设置请求体内容

    NSData *data = [str dataUsingEncoding:NSUTF8StringEncoding];//设置内容编码

    [request setHTTPBody:data];//添加到请求体

    [NSURLConnection connectionWithRequest:request delegate:self];

}

#pragma mark-接收到服务器回应的时候调用此方法

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response

{

    NSLog(@"接收到服务器回应的时候调用此方法");

    NSHTTPURLResponse *res = (NSHTTPURLResponse *)response;

    NSLog(@"%@",[res allHeaderFields]);

    self.receiveData=[[NSMutableData alloc]init];

}

#pragma mark-接收到服务器传输数据的时候调用，此方法根据数据大小执行若干次

-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data

{

    [self.receiveData appendData:data];

    NSLog(@"接收到服务器传输数据的时候调用，此方法根据数据大小执行若干次");

    

}

#pragma mark-数据传完之后调用此方法

-(void)connectionDidFinishLoading:(NSURLConnection *)connection

{

    NSLog(@"数据传完之后调用此方法");

    

    NSString *receiveStr = [[NSString alloc]initWithData:self.receiveData encoding:NSUTF8StringEncoding];

    //

    NSLog(@"%@",receiveStr);

    

}