如何从ios中的字符串响应中创建数组或字典？

Question

我正在为ios应用程序调用php webservice。我收到如下字符串的回应;

一个：10：{S：11：“sso_user_id”; S：6：” 123456” ; S：9：”姓名”; S：3：” XYZ”，S：8：”姓氏” S：3：” ABC”; S：5：” abono”; S：1：” 1” ; S：4：”散列 “; S：32：” 638550add0b538a5a771d “; S：5：” 令牌“; S ：32： “78451add0b51245789555514585”; S：5： “登录”; S：8： “XXXXXXXX”; S：6： “曲奇”; S：0： “”; S：6： “访问”;一个：5： {S：4： “角色”; S：6：“测试”; S：13： ”initial_reads“; S：1： ”8“; S：14： ”reads_remained“; S：1： ”8“; S ：11： “valid_until”; S：9： “2014年11月1日”; S：10： “tmp_portal”; S：10： “google.com”;} S：5： “错误”; S：0： “”;}

......键.........和...........值

sso_user_id  123456 
firstname  xyz 
lastname  abc 
abono   1 
hash   638550add0b538a5a771d 
token   78451add0b51245789555514585 
login   xxxxx 
role   TESTER 
initial_reads 11 
valid_until  2014-11-1 
tmp_portal  google.com 

注意：其中：10表示10个对象的数组，s：11表示长度为10个字符的字符串。

但我没有任何想法如何将此字符串转换为数组或字典来获取键值。

感谢，

Answer 1

最后我用以下解决我的问题。我在这里发布我的代码，以便其他任何人都可以解决像我这样的问题;

//在ParsedData.h

#import <Foundation/Foundation.h> 

@interface ParsedData : NSObject 
{ 

} 
@property(nonatomic,retain)NSMutableArray *parsedDataArr; 
@property(nonatomic,retain)NSMutableDictionary *finalDict; 

@end 

//在ParsedData.m

#import "ParsedData.h" 

@implementation ParsedData 

@synthesize parsedDataArr; 

-(id)init 
{ 
    parsedDataArr = [[NSMutableArray alloc]initWithObjects:@"sso_user_id",@"firstname", @"lastname",@"abono",@"hash",@"token",@"login",@"cookie",@"role",@"initial_reads",@"reads_remained",@"valid_until",@"tmp_portal",@"error",nil]; 

    return self; 
} 

//你ViewVontrller.m ..

#imprort“ParsedData.h”

-(void)buildDataFromString:(NSString*)stringToBuild; 
{ 
    ParsedData *pd = [[ParsedData alloc]init]; 

    pd.finalDict = [[NSMutableDictionary alloc]init]; 

    for (int i =0; i < pd.parsedDataArr.count; i++) 
    { 
     NSString *arrKey = [pd.parsedDataArr objectAtIndex:i]; 

     if ([stringToBuild rangeOfString:arrKey].location != NSNotFound) 
     { 
      int length = 0; 

      NSString *subString = [stringToBuild substringFromIndex:[stringToBuild rangeOfString:arrKey].location + arrKey.length + 2]; 

      if ([arrKey isEqualToString:@"initial_reads"] || [arrKey isEqualToString:@"reads_remained"]) 
      { 
       length = [self getIntLengthValue:subString]; 

       [pd.finalDict setValue:[NSNumber numberWithInt:length] forKey:arrKey]; 

      } 
      else 
      { 
       length = [self getStringLengthValue:subString]; 

       if (length == 0) 
       { 
        [pd.finalDict setValue:@"" forKey:arrKey]; 
       } 

       else 
       { 
        // Gets the string inside the first set of parentheses in the regex 
        NSString *inside = [self getKeyValue:subString]; 

        [pd.finalDict setValue:inside forKey:arrKey]; 
       } 
      } 
     } 
    } 

    NSLog(@"final parsed values dict - %@",pd.finalDict); 
} 

-(int)getIntLengthValue:(NSString *)subString 
{ 
    NSRegularExpression *regex1 = [NSRegularExpression 
            regularExpressionWithPattern:@"\"(.+?)\"" options:0 error:NULL]; 

    NSTextCheckingResult *result = [regex1 firstMatchInString:subString 
                 options:0 range:NSMakeRange(0, [subString length])]; 

    NSString *str =[subString substringWithRange:[result rangeAtIndex:1]]; 

    NSCharacterSet *alphaNums = [NSCharacterSet decimalDigitCharacterSet]; 
    NSCharacterSet *inStringSet = [NSCharacterSet characterSetWithCharactersInString:str]; 
    BOOL isDigitOnly = [alphaNums isSupersetOfSet:inStringSet]; 

    if (isDigitOnly) 
    { 
     return [str intValue]; 
    } 
    else 
    { 
     return 0; 
    } 
} 

-(int)getStringLengthValue:(NSString *)subString 
{ 
    NSRegularExpression *regex1 = [NSRegularExpression 
            regularExpressionWithPattern:@":(.+?):" options:0 error:NULL]; 

    NSTextCheckingResult *result = [regex1 firstMatchInString:subString 
                 options:0 range:NSMakeRange(0, [subString length])]; 

    NSString *str =[subString substringWithRange:[result rangeAtIndex:1]]; 

    int length = [str intValue]; 

    return length; 
} 

-(NSString *)getKeyValue:(NSString *)subString 
{ 
    NSRegularExpression *regex = [NSRegularExpression 
            regularExpressionWithPattern:@"\"(.+?)\"" options:0 error:NULL]; 

    NSTextCheckingResult *result = [regex firstMatchInString:subString 
                options:0 range:NSMakeRange(0, [subString length])]; 

    // Gets the string inside the first set of parentheses in the regex 
    NSString *inside = [subString substringWithRange:[result rangeAtIndex:1]]; 

    return inside; 
} 

Answer 2

Well.It是很容易得到this.If你按照下面的编码

//just give your URL instead of my URL 

    NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:[NSURL  URLWithString:@"http://api.worldweatheronline.com/free/v1/search.ashx?query=London&num_of_results=3&format=json&key=xkq544hkar4m69qujdgujn7w"]]; 

    [request setHTTPMethod:@"GET"]; 

    [request setValue:@"application/json;charset=UTF-8" forHTTPHeaderField:@"content-type"]; 

    NSError *err; 

    NSURLResponse *response; 

    NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err]; 

//You need to check response.Once you get the response copy that and paste in ONLINE JSON VIEWER.If you do this clearly you can get the correct results.  

//After that it depends upon the json format whether it is DICTIONARY or ARRAY 

    NSDictionary *jsonArray = [NSJSONSerialization JSONObjectWithData:responseData options: NSJSONReadingMutableContainers error: &err]; 

    NSArray *array=[[jsonArray objectForKey:@"s"]objectForKey:@"sso_user_id "]objectForKey:@"firstname"]objectForKey:@"lastname"]objectForKey:@"abono"]objectForKey:@"hash"]objectForKey:@"token"]objectForKey:@"login"]objectForKey:@"role "]objectForKey:@"initial_reads"]objectForKey:@"valid_until"]objectForKey:@"tmp_portal"]; // Now i give your key all keys.So check it. 

Answer 3

在您的.h部分

1. //第1步：添加代表类

   First of all you should add <NSXMLParserDelegate> 
   

2. //第2步：创建必要的对象

   NSXMLParser *parser; 
       NSMutableData *ReceviedData; 
       NSMutableString *currentStringValue; 
   
       NSMutableArray *sso_user_id; 
       NSMutableArray *firstName; 
       NSMutableArray *lastName; 
       NSMutableArray *abono; 
       NSMutableArray *hash; 
       NSMutableArray *token; 
       NSMutableArray *login; 
       NSMutableArray *role; 
       NSMutableArray *initial_reads; 
       NSMutableArray *valid_until; 
       NSMutableArray *tmp_portal; 
   

   在您的m部分

   //Step 3 - Allocate your all Arrays in your viewDidLoad method 
   
       sso_user_id = [NSMutableArray alloc]init]; 
       .... 
       tmp_portal = [NSMutableArray alloc]init]; 
   
   //Step 4 - Create Connection in your viewDidLoad Like 
   
       [self createConnection:@"http://www.google.com"];//give yoyur valid url. 
   
   - (void)createConnection:(NSString *)urlString 
   { 
       NSURL *url = [NSURL URLWithString:urlString]; 
   
       //Step 5 - parser delegate methods are using NSURLConnectionDelegate class or not. 
       BOOL success; 
       if (!parser) 
       { 
       parser = [[NSXMLParser alloc] initWithContentsOfURL:url]; 
       parser.delegate = self; 
       parser.shouldResolveExternalEntities = YES; 
       success = [parser parse]; 
       NSLog(@"Success : %c",success); 
       } 
   } 
   -(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict 
   { 
       NSLog(@"Current Element Name : %@",elementName); 
   
       if ([elementName isEqualToString:@"sso_user_id"]) 
       { 
       NSLog(@"The sso_user_id is==%@",elementName); 
       } 
       if ([elementName isEqualToString:@"firstName"]) 
       { 
       NSLog(@"The firstname is==%@",elementName); 
       } 
       if ([elementName isEqualToString:@"lastName"]) 
       { 
       NSLog(@"The lastname is==%@",elementName); 
       } 
   } 
   -(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string 
   { 
       currentStringValue = [[NSMutableString alloc] initWithString:string]; 
       NSLog(@"Current String Value : %@",currentStringValue); 
   } 
   -(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName 
   { 
       if ([elementName isEqualToString:@"sso_user_id"]) 
       { 
       [sso_user_id addObject:currentStringValue]; 
       } 
       if ([elementName isEqualToString:@"firstName"]) 
       { 
       [firstName addObject:currentStringValue]; 
       } 
       if ([elementName isEqualToString:@"lastName"]) 
       { 
       [lastName addObject:currentStringValue]; 
       } 
       currentStringValue = nil; 
   }