多值参数

network | | 访问(63)
 // 1.URL
NSURL *url = [NSURL URLWithString:@"http://localhost:8080/MJServer/weather"];

// 2.请求
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

// 3.请求方法
request.HTTPMethod = @"POST";

// 4.设置请求体(请求参数)
NSMutableString *param = [NSMutableString string];
[param appendString:@"place=beijing"];
[param appendString:@"&place=tianjin"];
[param appendString:@"&place=meizhou"];

request.HTTPBody = [param dataUsingEncoding:NSUTF8StringEncoding];

// 5.发送请求
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
    if (data == nil || connectionError) return;
    NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
    NSString *error = dict[@"error"];
    if (error) {
        [MBProgressHUD showError:error];
    } else {
        //NSArray *weathers = dict[@"weathers"];
        NSLog(@"%@", dict);
    }
}];