iOS网络篇－－－使用NSSession 实现post和get发送和接收,并实现字典的发送

- (void)dataTaskSendGet
{

NSURL *url=[NSURL
URLWithString:@"http://192.168.0.124:8080/WYServer/login?username=wyzc&pwd=wyzc"];

NSURLSession *session=[NSURLSession
sharedSession];

NSURLRequest *request=[NSURLRequest
requestWithURL:url];

NSURLSessionDataTask *dataTask=[session
dataTaskWithRequest:request completionHandler:^(NSData *data,
NSURLResponse *response,
NSError *error) {

NSDictionary *dict=[NSJSONSerialization
JSONObjectWithData:data options:NSJSONReadingAllowFragments
error:nil];

if (dict[@"error"]) {

NSLog(@"%@",dict[@"error"]);
}

else
{

NSLog(@"%@",dict[@"success"]);
}

} ];
[dataTask
resume];
}
- (void)dataTaskSendPost
{

NSURL *url=[NSURL
URLWithString:@"http://192.168.0.124:8080/WYServer/login"];

NSString *str=@"username=wyzc&pwd=wyzc";

NSMutableURLRequest *request=[NSMutableURLRequest
requestWithURL:url];
request.HTTPMethod=@"POST";

request.HTTPBody=[str
dataUsingEncoding:NSUTF8StringEncoding];

//此处发送千万不能设置，这个地方只发送了口令数据接收者未使用json格式

// [request setValue:@"application/jason" forHTTPHeaderField:@"Content-Type"];

NSURLSession *session=[NSURLSession
sharedSession];

NSURLSessionDataTask *dataTask=[session
dataTaskWithRequest:request completionHandler:^(NSData *data,
NSURLResponse *response,
NSError *error) {

NSDictionary *dict=[NSJSONSerialization
JSONObjectWithData:data options:NSJSONReadingAllowFragments
error:nil];

if (dict[@"error"]) {

NSLog(@"%@",dict[@"error"]);
}

else
{

NSLog(@"%@",dict[@"success"]);
}

}];
[dataTask
resume];
}

- (void)dataTaskJasonSendDict
{

NSURL *url=[NSURL
URLWithString:@"http://192.168.0.124:8080/WYServer/order"];

NSMutableURLRequest *request=[NSMutableURLRequest
requestWithURL:url];
request.HTTPMethod=@"POST";

//此处发送一定要设置，这个地方把字典封装为json格式

[request setValue:@"application/jason"
forHTTPHeaderField:@"Content-Type"];

NSDictionary *dict=@{@"name":@"sd",@"gender":@"man",

@"name":@"sddd",@"gender":@"feman",

@"name":@"xxx",@"gender":@"feman"

};

NSData *data=[NSJSONSerialization
dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted
error:nil];
request.HTTPBody=data;

NSURLSession *session=[NSURLSession
sharedSession];

NSURLSessionDataTask *dataTask=[session
dataTaskWithRequest:request completionHandler:^(NSData *data,
NSURLResponse *response,
NSError *error) {

NSDictionary *dict=[NSJSONSerialization
JSONObjectWithData:data options:NSJSONReadingAllowFragments
error:nil];

if (dict[@"error"]) {

NSLog(@"%@",dict[@"error"]);
}

else
{

NSLog(@"%@",dict[@"success"]);
}

}];
[dataTask
resume];
}