Question

这是我的代码：

case NSStreamEventHasBytesAvailable:
    if (theStream == inputStream) {
            uint8_t buffer[1024];
            long len;
            NSMutableString *total = [[NSMutableString alloc] init];
            while ([inputStream hasBytesAvailable]) {
                len = [inputStream read:buffer maxLength:sizeof(buffer)];
                if (len > 0) {
                    [total appendString: [[NSString alloc] initWithBytes:buffer length:len encoding:NSASCIIStringEncoding]];

                        currentOperation.response = total; 
                }
            }
            [super executeOperation:currentOperation];
    }

任何可能导致这种情况的想法？我100％确定邮件是从我的服务器正确发送的。当我在while循环上设置断点时，如果我禁用断点，它会在几行中删除消息，问题就会消失

Answer 1

我找到了一个解决方案，通过验证JSON字符串并循环它是否有效，直到它有效

case NSStreamEventHasBytesAvailable: 
{

        if (theStream == inputStream) {

                uint8_t buffer[1024];

                long len;
                NSMutableString *totalJSONString = [[NSMutableString alloc] init];
                NSData *data;
                id json;
                do {
                    len = [inputStream read:buffer maxLength:sizeof(buffer)];
                    if (len > 0) {
                        NSError *error = nil;
                        [totalJSONString appendString:[[NSString alloc] initWithBytes:buffer length:len encoding:NSUTF8StringEncoding]];

                    }
                    data = [totalJSONString dataUsingEncoding:NSUTF8StringEncoding];
                    json = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
                } while (json == nil);
                currentOperation.response = totalJSONString;
                NSLog(@"%@", totalJSONString);
                totalJSONString = (NSMutableString *) @"";
                [super executeOperation:currentOperation];

        }
        break;
    }

Iphone - 为什么流剪切长消息？

1 个答案: