-(void)xmlDOMMethed{

  //盛放所有的字典
 self.sourceArray = [NSMutableArray array];
  //setp1.得到需要解析的數(shù)據(jù)
  NSString *xmlPath = [[NSBundle mainBundle] pathForResource:@"XMLDemo" ofType:@"xml"];
  //step2.轉(zhuǎn)換為NSData類型
  NSData *xmlData = [NSData dataWithContentsOfFile:xmlPath];
  //step3.1 構(gòu)建document文檔對(duì)象(options預(yù)留參數(shù))
  GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithData:xmlData options:0 error:nil];
  //step3.2 找到根節(jié)點(diǎn)(students)
  GDataXMLElement *rootElement = [doc rootElement];
 //step3.3 找到根節(jié)點(diǎn)的所有子節(jié)點(diǎn)
  NSArray *allSubNotes = [rootElement elementsForName:@"student"];
  //step3.3 找到student節(jié)點(diǎn)的所有子節(jié)點(diǎn)
  for (GDataXMLElement *item in allSubNotes) {

    //每次循環(huán)開(kāi)始的時(shí)候,說(shuō)明是一個(gè)新的student節(jié)點(diǎn),我們需要字典來(lái)盛放它所有的值
    NSMutableDictionary *studentDic = [NSMutableDictionary dictionary];
    //得到name節(jié)點(diǎn)
    NSArray *nameArray = [item elementsForName:@"name"];
    GDataXMLElement *nameElement = [nameArray objectAtIndex:0];
    NSString *name = [nameElement stringValue];
    [studentDic setObject:name forKey:@"name"];

    //取出age
    NSArray *ageArray = [item elementsForName:@"age"];
    GDataXMLElement *ageElement = [ageArray objectAtIndex:0];
    NSString *age = [ageElement stringValue];
    [studentDic setObject:age forKey:@"age"];

    //取出sex
    NSArray *sexArray = [item elementsForName:@"sex"];
    GDataXMLElement *sexElement = [sexArray objectAtIndex:0];
    NSString *sex = [sexElement stringValue];
    [studentDic setObject:sex forKey:@"sex"];
    //把student字典添加到數(shù)組中
    [self.sourceArray addObject:studentDic];
  }
NSLog(@"%@",self.sourceArray);
 }

//通過(guò)dom解析方式為xml增加節(jié)點(diǎn) (sax只可以讀取，不可以添加)
- (void)domAddNote{
  //獲得文件路徑
  NSString *xmlPath = [[NSBundle mainBundle] pathForResource:@"XMLDemo" ofType:@"xml"];
  //將文件轉(zhuǎn)換為data類型
  NSData *xmlData = [NSData dataWithContentsOfFile:xmlPath];

  GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithData:xmlData options:0 error:nil];
  GDataXMLElement *rootElement = [doc rootElement];
  //創(chuàng)建一個(gè)我們需要添加的節(jié)點(diǎn)(student)
  GDataXMLElement *createElement = [GDataXMLElement elementWithName:@"student"];
  //為student節(jié)點(diǎn)添加屬性
  [createElement addAttribute:[GDataXMLElement attributeWithName:@"attribute" stringValue:@"aa"]];
  //為student節(jié)點(diǎn)添加子節(jié)點(diǎn)
  GDataXMLElement *nameNode = [GDataXMLElement elementWithName:@"name" stringValue:@"美麗"];
  [createElement addChild:nameNode];
  GDataXMLElement *ageNode = [GDataXMLElement elementWithName:@"age" stringValue:@"18"];
  [createElement addChild:ageNode];
  GDataXMLElement *sexNode = [GDataXMLElement elementWithName:@"sex" stringValue:@"男"];
  [createElement addChild:sexNode];

  //將創(chuàng)建好的student節(jié)點(diǎn)，添加到根節(jié)點(diǎn)，也就是students節(jié)點(diǎn)下
  [rootElement addChild:createElement];

  //得到所有的student節(jié)點(diǎn)
  NSArray *stuElementArray = [rootElement elementsForName:@"student"];

  //遍歷得到每個(gè)student節(jié)點(diǎn)，以便獲得student的子節(jié)點(diǎn)的值。
  for (GDataXMLElement* item in stuElementArray) {

    //獲得student節(jié)點(diǎn)的attribute屬性值
    NSLog(@"%@",[[item attributeForName:@"attribute"] stringValue]);

    NSArray *nameArray = [item elementsForName:@"name"];
    GDataXMLElement *nameElement = [nameArray objectAtIndex:0];
    NSString *name = [nameElement stringValue];

    //取出age
    NSArray *ageArray = [item elementsForName:@"age"];
    GDataXMLElement *ageElement = [ageArray objectAtIndex:0];
    NSString *age = [ageElement stringValue];
        //取出sex
    NSArray *sexArray = [item elementsForName:@"sex"];
    GDataXMLElement *sexElement = [sexArray objectAtIndex:0];
    NSString *sex = [sexElement stringValue];
    NSLog(@"name=%@---age=%@----sex=%@",name,age,sex);
  }
}

//遵循協(xié)議
@interface rootViewController ()<NSXMLParserDelegate>

//xml解析之sax解析
-(void)xmlSaxMethod{
 //得到需要解析的數(shù)據(jù)
 NSString *xmlPath = [[NSBundle mainBundle] pathForResource:@"XMLDemo" ofType:@"xml"];
 NSData *xmlData = [NSData dataWithContentsOfFile:xmlPath];
 //創(chuàng)建sax解析的工具類對(duì)象
 NSXMLParser *saxParser = [[NSXMLParser alloc] initWithData:xmlData];
 //指定代理
 saxParser.delegate = self;
 //開(kāi)始解析 sax解析是一個(gè)同步的過(guò)程
 BOOL isParse = [saxParser parse];
 if (isParse) {

   NSLog(@"解析完成");
 }else{
   NSLog(@"解析失敗");
 }
 NSLog(@"我是在解析結(jié)束下面");
}

//開(kāi)始解析的代理方法
-(void)parserDidStartDocument:(NSXMLParser *)parser {
 NSLog(@"開(kāi)始解析");
 self.saxArray = [NSMutableArray array]; 
}
//開(kāi)始解析某個(gè)節(jié)點(diǎn)
//elementName:標(biāo)簽名稱
//namespaceURI:命名空間指向的鏈接
//qName:命名空間的名稱
//attributeDict:節(jié)點(diǎn)的所有屬性
-(void)parser:(NSXMLParser )parser didStartElement:(NSString )elementName namespaceURI:(NSString )namespaceURI qualifiedName:(NSString )qName attributes:(NSDictionary<NSString *,NSString *> *)attributeDict {
 NSLog(@"開(kāi)始解析%@節(jié)點(diǎn)",elementName);
 //當(dāng)開(kāi)始解析student標(biāo)簽的時(shí)候,就應(yīng)該初始化字典,因?yàn)橐粋€(gè)字典就對(duì)應(yīng)的是一個(gè)學(xué)生的信息
 if ([elementName isEqualToString:@"student"]) {
   self.saxDic = [NSMutableDictionary dictionary];
 }
}
//獲取節(jié)點(diǎn)之間的值
-(void)parser:(NSXMLParser )parser foundCharacters:(NSString )string {
 NSLog(@"取值--------%@",string);
 if (self.valueString) {//說(shuō)明有值
   [self.valueString appendString:string];
 } else {
   self.valueString = [NSMutableString stringWithString:string];
 }
}
//某個(gè)節(jié)點(diǎn)結(jié)束取值


-(void)parser:(NSXMLParser )parser didEndElement:(NSString )elementName namespaceURI:(NSString )namespaceURI qualifiedName:(NSString )qName {
 if ([elementName isEqualToString:@"name"]) {//說(shuō)明name節(jié)點(diǎn)已經(jīng)取值結(jié)束
 [self.saxDic setObject:self.valueString forKey:elementName];
 }
 if ([elementName isEqualToString:@"age"]) {
 [self.saxDic setObject:self.valueString forKey:elementName];
 }
 if ([elementName isEqualToString:@"sex"]) {
 [self.saxDic setObject:self.valueString forKey:elementName];
 }
 if ([elementName isEqualToString:@"student"]) {
 [self.saxArray addObject:self.saxDic];
 }
 self.valueString = nil;//置空
 NSLog(@"結(jié)束%@節(jié)點(diǎn)的解析",elementName);
}


//結(jié)束解析


-(void)parserDidEndDocument:(NSXMLParser *)parser {
 //可以使用解析完成的數(shù)據(jù)
 NSLog(@"%@",self.saxArray);
 NSLog(@"整個(gè)解析結(jié)束");
}

//解析出錯(cuò)

-(void)parser:(NSXMLParser )parser parseErrorOccurred:(NSError )parseError {
 NSLog(@"解析出現(xiàn)錯(cuò)誤-------%@",parseError.description);
}