IOS——解析网络XMl，失败则解析本地XML

本文综合两篇文章后总结出来的，下面贴上地址，且这两篇文章将解析xml原理说得很清楚，这里只贴代码

这是解析网络xml的：http://www.cnblogs.com/wendingding/p/3815497.html

这是解析本地网路xml的：http://blog.youkuaiyun.com/sjzsp/article/details/6314740

代码如下：

主程序：

    confObject=[[ConfObjectalloc]init];

    tempString=[[NSMutableStringalloc]init];

    //创建路径

    NSString  *urlStr=@"Url地址";

   NSURL *url=[NSURLURLWithString:urlStr];

    //创建请求

    NSMutableURLRequest  *request=[NSMutableURLRequestrequestWithURL:url];//默认为get请求

    //设置最大的网络等待时间

    request.timeoutInterval=20.0;

    //获取主队列

    NSOperationQueue *queue=[NSOperationQueuemainQueue];

    //发起请求

    [NSURLConnectionsendAsynchronousRequest:requestqueue:queue completionHandler:^(NSURLResponse *response,NSData *data,NSError *connectionError) {

        if (data) {//如果请求成功，拿到服务器返回的数据

            NSLog(@"Start to parse service XML");

            [selfparseXMLData:data];

        }else {

            [selfparseLocalXML];

        }

    }];

下面是一些调用的方法：

-(void)parseXMLData:(NSData *)data{

   NSXMLParser *parser=[[NSXMLParseralloc]initWithData:data];

    parser.delegate=self;

    [parserparse];

    [parserrelease];

}

-(void)parseLocalXML{

    NSLog(@"Start to parse Local XML");

    NSString *xmlFilePath = [[NSBundlemainBundle]pathForResource:@"conf"ofType:@"xml"];

   NSFileHandle *file = [NSFileHandlefileHandleForReadingAtPath:xmlFilePath];

   NSData *data = [filereadDataToEndOfFile];

    [filecloseFile];

    

   NSXMLParser *m_parser = [[NSXMLParseralloc]initWithData:data];

    [m_parsersetDelegate:self];

   BOOL flag = [m_parserparse];

   if(flag) {

        NSLog(@"获取指定路径的xml文件成功");

    }else{

        NSLog(@"获取指定路径的xml文件失败");

    }

    [m_parserrelease];

}

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict {

   NSLog(@"elementName %@",elementName);

    [tempString setString:@""];

}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string

{

    [tempStringappendString:string];

   NSLog(@"data:%@",string);

}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName

  namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName

{

   if ([elementNameisEqualToString:@"version"]){

        confObject.version=[tempStringintValue];

    }elseif ([elementNameisEqualToString:@"meriod"]){

        confObject.meriod=[tempStringintValue];

    }elseif ([elementNameisEqualToString:@"upload"]){

        confObject.upload=[tempStringintValue];

    }elseif ([elementNameisEqualToString:@"rUrl"]){

        confObject.rUrl=tempString;

    }elseif ([elementNameisEqualToString:@"cUrl"]){

        confObject.cUrl=tempString;

    }elseif ([elementNameisEqualToString:@"aUrl"]){

        confObject.aUrl=tempString;

    }

}

// 解析完成后，调用该方法

- (void)parserDidEndDocument:(NSXMLParser *)parser

{

    NSLog(@"parese XML ends");

    NSArray* xmlData = [tempStringcomponentsSeparatedByString: @","];

    fstconfObject.version=[[xmlDataobjectAtIndex:0]integerValue];

    fstconfObject.measurementPeriod=[[xmlDataobjectAtIndex:1]integerValue];

    fstconfObject.uploadPeriod=[[xmlDataobjectAtIndex:2]integerValue];

    fstconfObject.requestUrl=[xmlDataobjectAtIndex:3];

    fstconfObject.configUrl=[xmlDataobjectAtIndex:4];

    fstconfObject.apkUrl=[xmlDataobjectAtIndex:5];

    NSLog(@"version:%d",fstconfObject.version);

    NSLog(@"measurementPeriod: %d",fstconfObject.measurementPeriod);

    NSLog(@"uploadPeriod: %d",fstconfObject.uploadPeriod);

    NSLog(@"requestUrl: %@",fstconfObject.requestUrl);

    NSLog(@"configUrl %@:",fstconfObject.configUrl);

    NSLog(@"apkUrl: %@",fstconfObject.apkUrl);

    parseXMLEnd=YES;

}