-(void)xmlDOMMethed{  //盛放所有的字典 self.sourceArray = [NSMutableArray array];  //setp1.得到需要解析的數據  NSString *xmlPath = [[NSBundle mainBundle] pathForResource:@"XMLDemo" ofType:@"xml"];  //step2.轉換為NSData類型  NSData *xmlData = [NSData dataWithContentsOfFile:xmlPath];  //step3.1 構建document文檔對象(options預留參數)  GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithData:xmlData options:0 error:nil];  //step3.2 找到根節點(students)  GDataXMLElement *rootElement = [doc rootElement]; //step3.3 找到根節點的所有子節點  NSArray *allSubNotes = [rootElement elementsForName:@"student"];  //step3.3 找到student節點的所有子節點  for (GDataXMLElement *item in allSubNotes) {    //每次循環開始的時候,說明是一個新的student節點,我們需要字典來盛放它所有的值    NSMutableDictionary *studentDic = [NSMutableDictionary dictionary];    //得到name節點    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字典添加到數組中    [self.sourceArray addObject:studentDic];  }NSLog(@"%@",self.sourceArray); }

//通過dom解析方式為xml增加節點 (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];  //創建一個我們需要添加的節點(student)  GDataXMLElement *createElement = [GDataXMLElement elementWithName:@"student"];  //為student節點添加屬性  [createElement addAttribute:[GDataXMLElement attributeWithName:@"attribute" stringValue:@"aa"]];  //為student節點添加子節點  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];  //將創建好的student節點，添加到根節點，也就是students節點下  [rootElement addChild:createElement];  //得到所有的student節點  NSArray *stuElementArray = [rootElement elementsForName:@"student"];  //遍歷得到每個student節點，以便獲得student的子節點的值。  for (GDataXMLElement* item in stuElementArray) {    //獲得student節點的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);  }}

//遵循協議@interface rootViewController ()<NSXMLParserDelegate>

//xml解析之sax解析-(void)xmlSaxMethod{ //得到需要解析的數據 NSString *xmlPath = [[NSBundle mainBundle] pathForResource:@"XMLDemo" ofType:@"xml"]; NSData *xmlData = [NSData dataWithContentsOfFile:xmlPath]; //創建sax解析的工具類對象 NSXMLParser *saxParser = [[NSXMLParser alloc] initWithData:xmlData]; //指定代理 saxParser.delegate = self; //開始解析 sax解析是一個同步的過程 BOOL isParse = [saxParser parse]; if (isParse) {   NSLog(@"解析完成"); }else{   NSLog(@"解析失敗"); } NSLog(@"我是在解析結束下面");}

//開始解析的代理方法-(void)parserDidStartDocument:(NSXMLParser *)parser { NSLog(@"開始解析"); self.saxArray = [NSMutableArray array]; }//開始解析某個節點//elementName:標簽名稱//namespaceURI:命名空間指向的鏈接//qName:命名空間的名稱//attributeDict:節點的所有屬性-(void)parser:(NSXMLParser )parser didStartElement:(NSString )elementName namespaceURI:(NSString )namespaceURI qualifiedName:(NSString )qName attributes:(NSDictionary<NSString *,NSString *> *)attributeDict { NSLog(@"開始解析%@節點",elementName); //當開始解析student標簽的時候,就應該初始化字典,因為一個字典就對應的是一個學生的信息 if ([elementName isEqualToString:@"student"]) {   self.saxDic = [NSMutableDictionary dictionary]; }}//獲取節點之間的值-(void)parser:(NSXMLParser )parser foundCharacters:(NSString )string { NSLog(@"取值--------%@",string); if (self.valueString) {//說明有值   [self.valueString appendString:string]; } else {   self.valueString = [NSMutableString stringWithString:string]; }}//某個節點結束取值-(void)parser:(NSXMLParser )parser didEndElement:(NSString )elementName namespaceURI:(NSString )namespaceURI qualifiedName:(NSString )qName { if ([elementName isEqualToString:@"name"]) {//說明name節點已經取值結束 [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(@"結束%@節點的解析",elementName);}//結束解析-(void)parserDidEndDocument:(NSXMLParser *)parser { //可以使用解析完成的數據 NSLog(@"%@",self.saxArray); NSLog(@"整個解析結束");}//解析出錯-(void)parser:(NSXMLParser )parser parseErrorOccurred:(NSError )parseError { NSLog(@"解析出現錯誤-------%@",parseError.description);}