NSData *xmlData = [[NSData alloc]initWithContentsOfFile:[NSString stringWithFormat:@"%@/People.xml",[[NSBundle mainBundle] resourcePath]]]; //2.将xmlData转化成xml文档 GDataXMLDocument *xmlDocument = [[GDataXMLDocument alloc]initWithData:xmlData options:0 error:nil]; //3.得到节点 GDataXMLElement *rootElement = xmlDocument.rootElement; //4.得到子节点 /*NSArray *elementArray = rootElement.children; //得到classone节点 GDataXMLElement *classoneElement = [elementArray firstObject]; for(GDataXMLElement *element in classoneElement.children) { //得到当前节点的文本值 NSLog(@"%@",element.stringValue); if (element.children.count>0) { GDataXMLElement *infoElement = [element.children lastObject]; //获得节点的所有属性和属性值 NSArray *attArray = infoElement.attributes; for (GDataXMLElement *attElement in attArray) { //得到属性名和属性值 NSLog(@"%@-%@",attElement.name,attElement.stringValue); } } } */ //模糊查找 NSArray *eArray = [rootElement nodesForXPath:@"//info" error:nil]; NSLog(@"%@",eArray);

iPhone开发 解析xml NSData

具体内容请看下文代码分析：

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); }}