xml格式文件解析-白红宇

xml格式文件解析

阅读量：5971 次

发布时间：2019-06-19

本文共 2300 字，大约阅读时间需要 7 分钟。

废话少讲，直接上代码！你懂的


    @interface pyViewController ()

{ NSMutableString *_string ; NSMutableArray *_array; pyWeather *_w; } @end

/** 项目分析 1.先取出数据 2.再将数据显示到地图上， */

@implementation pyViewController

(void)viewDidLoad { [super viewDidLoad]; [self xmlHTTPRequestWithString:@"北京"]; }

-(void)xmlHTTPRequestWithString:(NSString *)str { //1.url NSString *urlString = @""; NSURL *url = [NSURL URLWithString:urlString]; //2.urlrequest NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:5.0f]; urlRequest.HTTPMethod = @"post"; NSString *datastring = [NSString stringWithFormat:@"theCityCode=%@&theUserID=",str]; urlRequest.HTTPBody = [datastring dataUsingEncoding:NSUTF8StringEncoding] ; //3.发送 [NSURLConnection sendAsynchronousRequest:urlRequest queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) { NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data]; parser.delegate = self; [parser parse]; }]; }

#pragma mark -xml解析方法 #pragma mark 开始文档解析 -(void)parserDidStartDocument:(NSXMLParser *)parser {

_string = [NSMutableString string];_array = [NSMutableArray array];

}

#pragma mark 开始节点解析 -(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {

if ([elementName isEqualToString:@"ArrayOfString"]) {    [_array removeAllObjects];}

} #pragma mark 真正解析 -(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {

[_string appendString:string];

}

#pragma mark 完成借点解析 -(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {

if ([elementName isEqualToString:@"string" ]) {    //NSLog(@"%@",_string);    NSString *result = [NSString stringWithString: _string];    [_array addObject:result];}

}

#pragma mark 结束解析 -(void)parserDidEndDocument:(NSXMLParser *)parser {

NSLog(@"%@",_string);

}

#pragma mark 解析错误时 -(void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError { NSLog(@"the reason of faile is %@",parseError.localizedDescription); }

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转载于:https://my.oschina.net/panyong/blog/191903

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