iPhone開發 解析xml NSData

xml字串為：

<users>
<user name="hoge" age="20" />
<user name="fuga" age="30" />
</users>

 

//解析按鈕事件

-(IBAction)btnXml

{

   

    NSString* str= [uitextview1 text];

    //string轉成data

    NSData *xmlData = [str dataUsingEncoding: NSUTF8StringEncoding];

    //對xml進行解析需要使用NSXMLParser類，首先聲明一個NSXMLParser對象   

    //開始解析 

    NSXMLParser* xmlRead = [[NSXMLParser alloc] initWithData:xmlData];//初始化NSXMLParser對象  

    [xmlRead setDelegate:self];//設定NSXMLParser對象的解析方法代理 

    [xmlRead parse];//調用代理解析NSXMLParser對象，看解析是否成功     

}

 

//解析器，從兩個結點之間讀取內容

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

    //NSLog(@"%@",string);}

 

 

//獲得結點結尾的值

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

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

    //NSLog(@"%@",elementName);}

 

//獲得結點頭的值

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

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

    attributes:(NSDictionary *)attributeDict

{

    //NSLog(@"%@",elementName);

    if([elementName isEqualToString: @"user"])

    {

        NSString* strName=[attributeDict valueForKey:@"name"];

        NSString* strAge=[attributeDict valueForKey:@"age"];

        NSString* strUser=uitextview2.text;

        strUser=[strUser stringByAppendingFormat:@"姓名：%@,年齡：%@\n",strName,strAge];

        [uitextview2 setText:strUser];

        //NSLog(@"姓名：%@,年齡：%@", strName,strAge);

    }

}

 

摘自 凡娃軟體