sax解析

{

NSMutableArray *arr;

Model *mod;

//记录开始标签

NSString *new;

UITableView *tab;

}

#define MAC @"http://127.0.0.1/156.xml"

{    [super viewDidLoad];        NSURL *url=[NSURL URLWithString:MAC];        NSURLSession *se=[NSURLSession sharedSession];    NSURLSessionTask *task=[se dataTaskWithURL:url completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {                //sax解析        NSXMLParser *par=[[NSXMLParser alloc]initWithData:data];        //设置代理        par.delegate=self;        //开始解析        [par parse];    }];    //开始请求    [task resume];        tab=[[UITableView alloc]initWithFrame:CGRectMake(0, 30, self.view.frame.size.width,self.view.frame.size.height)];    tab.dataSource=self;    tab.delegate=self;    [self.view addSubview:tab];            }//开始解析自动触发- (void)parserDidStartDocument:(NSXMLParser *)parser;{    //初始化    arr=[[NSMutableArray alloc]init];}//遇到开始标签自动触发- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(nullable NSString *)namespaceURI qualifiedName:(nullable NSString *)qName attributes:(NSDictionary*)attributeDict;

{

if ([elementName isEqualToString:@"stu"]) {

//初始化对象

mod=[[Model alloc]init];

//添加数组

[arr addObject:mod];

}

//记录开始标签

new=elementName;

}

//遇到内容自动回调--空格或回车也会当做内容回调

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

{

if ([new isEqualToString:@"name"])

{

mod.name=string;

}

else if ([new isEqualToString:@"age"])

{

mod.age=string;

}

}

//遇到结束标签

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(nullable NSString *)namespaceURI qualifiedName:(nullable NSString *)qName;

{

//

new=nil;

}

//解析完毕

- (void)parserDidEndDocument:(NSXMLParser *)parser;

{

//刷新表格

[tab reloadData];

}

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView

{

return 1;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section;

{

return  arr.count;

}

-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

static NSString *str=@"cell";

UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:str];

if (cell==nil)

{

cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:str];

}

Model*m=arr[indexPath.row];

cell.textLabel.text=m.name;

cell.detailTextLabel.text=m.age;

return cell;

}