Iphone 在JSON解析中，我在动态解析时遇到了问题

在JSON解析之后，我无法得到确切的输出

strURLRootView

是“RootViewController.m”类的

NSString

对象

strURLRootView = txt_EnterURL.text;

strURLRank = strURLRootView;

-(void)viewDidLoad

{

    [self startJSONParsing];

    [super viewDidLoad];
}

-(void)startJSONParsing

{

    responseData = [[NSMutableData data] retain];
    ArrData = [NSMutableArray array];

    NSString *stringWithoutSpaces = [NSString stringWithFormat:@"http://lsapi.seomoz.com/linkscape/url-metrics/%@%2fblog?AccessID=member-10fd5cb877&Expires=1365850483&Signature=m%2F7hZu1y7Sa00NGLFKHYY%2FO3TB4%3D",strURLRank];

strURLRank

也是“CheckRank\u ViewController.m”类的

NSString

对象

strURLRootView = txt_EnterURL.text;

strURLRank = strURLRootView;

-(void)viewDidLoad

{

    [self startJSONParsing];

    [super viewDidLoad];
}

-(void)startJSONParsing

{

    responseData = [[NSMutableData data] retain];
    ArrData = [NSMutableArray array];

    NSString *stringWithoutSpaces = [NSString stringWithFormat:@"http://lsapi.seomoz.com/linkscape/url-metrics/%@%2fblog?AccessID=member-10fd5cb877&Expires=1365850483&Signature=m%2F7hZu1y7Sa00NGLFKHYY%2FO3TB4%3D",strURLRank];

如果我使用

@"http://lsapi.seomoz.com/linkscape/url-metrics/www.yahoo.com%2fblog?AccessID=member-10fd5cb877&Expires=1365850483&Signature=m%2F7hZu1y7Sa00NGLFKHYY%2FO3TB4%3D“

这个URL静态地将给出确切的输出

    NSLog(@"stringWithoutSpaces is:--> %@\n\n",stringWithoutSpaces);

    NSURLRequest *request1 = [NSURLRequest requestWithURL:


                             [NSURL URLWithString:stringWithoutSpaces]];
    NSLog(@"request1 is:--> %@\n",request1);

    [[NSURLConnection alloc] initWithRequest:request1 delegate:self];


}

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

{

    [responseData setLength:0];

}

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

{

    [responseData appendData:data];

}

(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error

{

    NSLog(@"Error occured at the time of parsing...");

}

(void)connectionDidFinishLoading:(NSURLConnection *)connection

{

    [connection release];
    NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
    [responseData release];

    results = [responseString JSONValue];

    lbl_RootDomain.text = [results objectForKey:@"upl"];
    lbl_URL.text = [results objectForKey:@"uu"];
    lbl_Title.text = [results objectForKey:@"ut"];
    lbl_SubDomain.text = [NSString stringWithFormat:@"%f",[[results objectForKey:@"fmrp"] floatValue]];
    lbl_MozRank.text = [NSString stringWithFormat:@"%f",[[results objectForKey:@"umrp"] floatValue]];
    lbl_DomainAutho.text = [NSString stringWithFormat:@"%d",[[results objectForKey:@"pda"] intValue]];
    lbl_XternalLinks.text = [NSString stringWithFormat:@"%d",[[results objectForKey:@"ueid"] intValue]];
    lbl_Links.text = [NSString stringWithFormat:@"%d",[[results objectForKey:@"uid"] intValue]];
    lbl_PageAutho.text = [NSString stringWithFormat:@"%f",[[results objectForKey:@"upa"] floatValue]];

    NSLog(@"results data is:--> %@",results);

    NSString *str = [NSString stringWithFormat:@"Root Domain: %@\n URL: %@\n Title: %@\n Subdomain mozRank: %@\n MozRank: %@\n Domain Authority: %@\n External Links: %@\n Links: %@\n Page Authority: %@\n",lbl_RootDomain.text,lbl_URL.text,lbl_Title.text,lbl_SubDomain.text,lbl_MozRank.text,lbl_DomainAutho.text,lbl_XternalLinks.text,lbl_Links.text,lbl_PageAutho.text];

    NSLog(@"mail data is:--> \n\n %@",str);
}

我没有得到确切的编码问题。如果我在编码上有错误，那么请告诉我什么是错误的

---

提前感谢。

检查strURLRank是否为空后，使用下面的代码

NSString *stringWithoutSpaces = [NSString stringWithFormat:@"http://lsapi.seomoz.com/linkscape/url-metrics/%@%2fblog?AccessID=member-10fd5cb877&Expires=1365850483&Signature=m%2F7hZu1y7Sa00NGLFKHYY%2FO3TB4%3D",strURLRank];

NSString *urlString=[self trimString:stringWithoutSpaces];

以及使用urlString

下面是在.m文件中定义的方法

-(NSString*) trimString:(NSString *)theString {
    NSString *theStringTrimmed = [theString stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
    return theStringTrimmed;
}

希望这能帮助你。。。。

---

：）

。。。。。。。。。Maulik Trambadiya解决方案

-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    [responseData setLength: 0];
}

-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{   
    [responseData appendData:data];
}

-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    [connection release];
    [responseData release];

}

-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
    responseData = nil;
    NSLog(@"%@",responseString);
    SBJsonParser *parser = [[[SBJsonParser alloc] init] autorelease];
    NSDictionary *responseDict = [parser objectWithString:responseString];
    NSLog(@"%@",responseDict);
    [responseDict retain];    
}

- (NSString*) _formEncodeString: (NSString*) string
{
    NSString* encoded = (NSString*) CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
                                                                            (CFStringRef) string, NULL, CFSTR("!*'();:@&=+$,/?%#[]"), kCFStringEncodingUTF8);
    return [encoded autorelease];
}

- (void)viewWillAppear:(BOOL)animated
{

    responseData = [[NSMutableData data] retain];
    ArrData = [NSMutableArray array];
    NSString *strURLRank=@"www.gmail.com";
    NSString *str=@"%2fblog?AccessID=member-10fd5cb877&Expires=1365850483&Signature=";
    NSString *str1=@"m%2F7hZu1y7Sa00NGLFKHYY%2FO3TB4%3D";
    NSString *stringWithoutSpaces = [NSString stringWithFormat:@"http://lsapi.seomoz.com/linkscape/url-metrics/%@",strURLRank];
    NSLog(@"%@",stringWithoutSpaces);

    stringWithoutSpaces=[NSString stringWithFormat:@"%@%@%@",stringWithoutSpaces,str,str1];

  //  stringWithoutSpaces=[stringWithoutSpaces stringByReplacingOccurrencesOfString:@" " withString:@"%20"];
   // stringWithoutSpaces = [stringWithoutSpaces stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    NSLog(@"%@",stringWithoutSpaces);

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:stringWithoutSpaces]];
    NSLog(@"%@",request);
   [[NSURLConnection alloc] initWithRequest:request delegate:self];

    [super viewWillAppear:animated];
}

---

。。。。。。。。。Maulik Trambadiya解决方案已完成………

我认为如果strURLRank返回空值，或者如果此处为空格，则URL不支持空格，则有可能……请检查strURLRank的值……然后请告诉我您在文本字段中输入的哪个值意味着strURLRank的值……包括NSLog以及整个URL NSLog。。。。。。我试图解决您的问题…我想看到您的请求1是：-->“yourURLHere”日志，它在这里打印整个url，而不是www.google.com，使用www.facebook.com，在它没有响应您之后，您的URLRequest中出现了问题，问题是您的字符串带有特殊字符…request1是：-->oh dude我认为您的AccessID和memmberID没有在这个URL中使用，而且您也没有使用这个API的身份验证，所以请遵循此链接并清除您的问题dude…：）这很容易，这不是你的错，但首先注册并获得你的accessID和MemberID…我已经生成并使用了这个accessID和MemberID…然后它也给出了相同的输出。。。。