Question

作为Xcode 7中iOS开发的新手。下面我有一些问题请澄清我的疑问。

我需要存储来自URL的XML数据
并将每行的XML数据拆分并存储在Objective C中。

<?xml version="1.0" encoding="UTF-8"?> <NewDataSet> <tbl> <Es_Id>8e268283-e87e-4abc-aab9-07cb611a8e60</Es_Id> <EstablishmentType>40640054-2221-4086-92e4-4440497ccea2</EstablishmentType> <EstablishmentName>La Parrilla Colombian Steakhouse & Bar</EstablishmentName> <BusinessName>La Parrilla Colombian Steakhouse & Bar</BusinessName> <OpenTime>PT8H31M</OpenTime> <ClosingTime>PT18H50M</ClosingTime> <Floor>12 th floor</Floor> </tbl> </NewDataSet>

Answer 1

当我开始学习XML解析时，它有基本的步骤。我为你实现所有。

在ViewController.h中

第1步：添加委托类

First you have to add <NSXMLParserDelegate>

第2步：创建必要的对象

NSXMLParser *parser;
NSMutableData *ReceviedData;
NSMutableString *currentStringValue;
NSMutableArray *arrayID;

现在看起来像

#import <UIKit/UIKit.h>
@interface ViewController : UIViewController<NSXMLParserDelegate>
{
  NSXMLParser *parser;
  NSMutableData *ReceviedData;
  NSMutableString *currentStringValue;
  NSMutableArray *arrayID;
}
@end

然后在ViewController.m

中

第3步 - 在viewDidLoad方法中分配数组

arrayID = [[NSMutableArray alloc]init];

第4步 - 在viewDidLoad中创建连接

[self createConnection:@"http://www.google.com"]; //give your valid url.

现在viewDidLoad方法是

- (void)viewDidLoad
{
  [super viewDidLoad];
  // Do any additional setup after loading the view from its nib.
   arrayID = [[NSMutableArray alloc]init];
   [self createConnection:@"http://www.google.com"]; //give your valid url.
}

createConnection方法是

-(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);
    }
}

第6步 - NSXMLParserDlegate方法在

下面

-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
    NSLog(@"Current Element Name : %@",elementName);
    if ([elementName isEqualToString:@"ID"])  //according to your xml response your id is Es_Id.So you need to compare @"Es_Id"
    {
         NSLog(@"The Result 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:@"ID"]) //according to your xml response your id is Es_Id.So you need to compare @"Es_Id"
    {
       [arrayResult addObject:currentStringValue];
    }
       currentStringValue = nil;
}

从上面的代码我只检查ID。根据你的回复你需要比较其他键，如EstablishmentType，EstablishmentName，BusinessName，OpenTime .......

我有XML数据，现在我如何在Objective C中保存XML数据？

1 个答案: