iOS post请求

　　 
　　//请求的url链接
　　NSURL *url = [NSURL URLWithString:@"http://m.weather.com.cn/data/101010100.html"];
    
 　　NSError *error;
    
    NSString *jsonString = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&error];
    
    SBJsonParser *parser = [[SBJsonParser alloc]init];
    
    NSDictionary *rootdic = [parser objectWithString:jsonString error:&error];
    
    NSDictionary *weatherInfo = [rootdic objectForKey:@"weatherinfo"];
    
    self.textData.text = [NSString stringWithFormat:@"%@",[weatherInfo objectForKey:@"date_y"]];
    self.weather.text = [NSString stringWithFormat:@"%@",[weatherInfo objectForKey:@"weather1"]];

需要导入

#import "SBJsonParser.h"