iPhone开发 解析xml NSData xml

xml字符串为：

<users>

<user name="hoge" age="20" />

<user name="fuga" age="30" />

</users>

//解析按钮事件

-(IBAction)btnXml

{

NSString* str= [uitextview1 text];

//string转成data

NSData *xmlData = [str dataUsingEncoding: NSUTF8StringEncoding];

//对xml进行解析需要使用NSXMLParser类，首先声明一个NSXMLParser对象

//开始解析

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

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

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

}

//解析器，从两个结点之间读取内容

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

//NSLog(@"%@",string);

}

//获得结点结尾的值

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

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

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

}

//获得结点头的值

- (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：%@,年龄：%@\n",strName,strAge];

[uitextview2 setText:strUser];

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

}

}

备注：如果想获得属性，就要在 didStartElement这个函数中进行解析。如果想获取元素体的内容，那么就要在

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