Question

我在我的应用程序上解析了一个webService响应（XML），我意识到并不是所有的答案都被解析了（我预计至少还有3个相同信息的块），所以我决定修改我的方法connectionDidFinishLoading就像这样：

-(void) connectionDidFinishLoading:(NSURLConnection *) connection {
    NSString *XMLResponse = [[NSString alloc]initWithBytes:[webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];

    NSLog(@"xml message: %@, data length: %i", XMLResponse, [webData length]);

    if ([XMLResponse hasPrefix:@"[ERR]"]){
        [[[UIAlertView alloc]initWithTitle:@"Notification"
                                   message:XMLResponse != nil ? [@"there was an error while trying to load service" stringByAppendingString:XMLResponse]: @"there was an error while trying to load service"
                                  delegate:self
                         cancelButtonTitle:@"OK"
                         otherButtonTitles:nil]show];
        _transacWebServCompleto = @"FALSE";
        return;
    }

    xmlParser = [[NSXMLParser alloc] initWithData:webData];
    [xmlParser setDelegate:self];
    [xmlParser setShouldResolveExternalEntities:YES];
    [xmlParser parse];
}

在我运行我的应用程序时，我在输出部分

中得到了这个

xml message: (null), data length: 5516

表格打印正确但不完整，我的XML显示为null但由于数据长度包含数据，任何帮助我都会感激

提前致谢

Answer 1

你的XML可能包含特殊字符，如重音字，试试这个：

-(void) connectionDidFinishLoading:(NSURLConnection *) connection {
    NSString *XMLResponse = [[NSString alloc]initWithBytes:[webData mutableBytes] length:[webData length] encoding:NSISOLatin1StringEncoding];

    NSLog(@"xml message: %@, data length: %i", XMLResponse, [webData length]);

    if ([XMLResponse hasPrefix:@"[ERR]"]){
        [[[UIAlertView alloc]initWithTitle:@"Notification"
                                   message:XMLResponse != nil ? [@"there was an error while trying to load service" stringByAppendingString:XMLResponse]: @"there was an error while trying to load service"
                                  delegate:self
                         cancelButtonTitle:@"OK"
                         otherButtonTitles:nil]show];
        _transacWebServCompleto = @"FALSE";
        return;
    }

    xmlParser = [[NSXMLParser alloc] initWithData:[XMLResponse dataUsingEncoding:NSUTF8StringEncoding]];
    [xmlParser setDelegate:self];
    [xmlParser setShouldResolveExternalEntities:YES];
    [xmlParser parse];
}

我所做的只是：

获取NSString（XMLResponse）并将编码更改为NSISOLatin1StringEncoding
通过使用NSString（XMLResponse）一步创建NSData对象来初始化NSXMLParser对象（解析），但现在使用NSUTF8StringEncoding进行编码

尝试并告诉我们它是怎么回事！

WebService不完整的目标-C

1 个答案: