post发送JSON数据给服务器
触发发送的方法
- 这次Demo是通过点击屏幕触发发送数据给服务器事件
- 前提需要开启本地模拟服务器
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
NSURL *url = [NSURL URLWithString:@"http://127.0.0.1/post/postjson.php"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:15];
request.HTTPMethod = @"POST";
//选择不同类型的data发送给服务器
// request.HTTPBody = [self jsonString];
// request.HTTPBody = [self dictionaryData];
// request.HTTPBody = [self arrayData];
request.HTTPBody = [self objectData];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) {
if (data == nil || connectionError != nil) {
NSLog(@"请求数据失败！");
return ;
}
// id recive = [NSJSONSerialization JSONObjectWithData:data options:0 error:NULL];
//服务器返回的时字符串
NSString *recive = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
NSLog(@"%@", recive);
}];
#pragma clang diagnostic pop
}
发送JSON字符串
- (NSData *)jsonString{
NSString *string = @"{\"name\":\"zhangsan\",\"age\":\"18\"}";
NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding];
return data;
}
发送字典给服务器
- (NSData *)dictionaryData{
NSDictionary *dict = @{
@"name":@"zhangsan",
@"age":@18
};
//通过序列化成data类型
NSData *data = [NSJSONSerialization dataWithJSONObject:dict options:0 error:NULL];
return data;
}
发送数组给服务器
- (NSData *)arrayData{
NSArray *array = @[
@{@"zhangsan":@18},
@{@"lisi":@20}
];
NSData *data =[NSJSONSerialization dataWithJSONObject:array options:0 error:NULL];
return data;
}
发送oc对象给服务器
- 先将对象转换为字典
- 通过系统提供的JSON解析类进行序列化
- (NSData *)objectData{
RZPerson *person = [[RZPerson alloc]init];
person.name = @"zhangsan";
person.age = 20;
//先将对象转换为字典类型
NSDictionary *dict = [person dictionaryWithValuesForKeys:@[@"name",@"age"]];
//将字典转换为data类型
NSData *data = [NSJSONSerialization dataWithJSONObject:dict options:0 error:NULL];
return data;
}
