我想将我的JSON发送到URL（POST和GET）。
NSMutableDictionary *JSONDict = [[NSMutableDictionary alloc] init];
[JSONDict setValue:"myValue" forKey:"myKey"];
NSData *JSONData = [NSJSONSerialization dataWithJSONObject:self options:kNilOptions error:nil];
我当前的请求代码无效。
NSMutableURLRequest *requestData = [[NSMutableURLRequest alloc] init];
[requestData setURL:[NSURL URLWithString:@"http://fake.url/"];];
[requestData setHTTPMethod:@"POST"];
[requestData setValue:postLength forHTTPHeaderField:@"Content-Length"];
[requestData setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[requestData setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[requestData setHTTPBody:postData];
使用ASIHTTPRequest不是一个负责任的答案。
在iOS中发送POST和GET请求非常简单;并且不需要额外的框架。
POST要求：我们首先创建我们的POST的body（我们想发送的东西）作为NSString，并将其转换为NSData。
NSString *post = [NSString stringWithFormat:@"test=Message&this=isNotReal"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
接下来，我们读了postData的length，所以我们可以在请求中传递它。
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
现在我们有了我们想发布的内容，我们可以创建一个NSMutableURLRequest，并包括我们的postData。
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:@"http://YourURL.com/FakeURL"]];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setHTTPBody:postData];
let post = "test=Message&this=isNotReal"
let postData = post.data(using: String.Encoding.ascii, allowLossyConversion: true)
let postLength = String(postData!.count)
var request = URLRequest(url: URL(string: "http://YourURL.com/FakeURL/PARAMETERS")!)
request.httpMethod = "POST"
request.addValue(postLength, forHTTPHeaderField: "Content-Length")
request.httpBody = postData;
最后，我们可以发送请求，并通过创建新的NSURLSession阅读回复：
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
[[session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
NSString *requestReply = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
NSLog(@"Request reply: %@", requestReply);
}] resume];
let session = URLSession(configuration: .default)
session.dataTask(with: request) {data, response, error in
let requestReply = NSString(data: data!, encoding: String.Encoding.ascii.rawValue)
print("Request reply: \(requestReply!)")
}.resume()
GET要求：随着GET的要求它基本上是相同的，只有没有HTTPBody和Content-Length。
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:@"http://YourURL.com/FakeURL/PARAMETERS"]];
[request setHTTPMethod:@"GET"];
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
[[session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
NSString *requestReply = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
NSLog(@"Request reply: %@", requestReply);
}] resume];
var request = URLRequest(url: URL(string: "http://YourURL.com/FakeURL/PARAMETERS")!)
request.httpMethod = "GET"
let session = URLSession(configuration: .default)
session.dataTask(with: request) {data, response, error in
let requestReply = NSString(data: data!, encoding: String.Encoding.ascii.rawValue)
print("Request reply: \(requestReply!)")
}.resume()
在旁注中，您可以通过在Content-Type中添加以下内容来添加NSMutableURLRequest（和其他数据）。服务器在请求时可能需要这样做，例如json。
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
也可以使用[(NSHTTPURLResponse*)response statusCode]读取响应代码。
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
更新：sendSynchronousRequest从ios9和osx-elcapitan（10.11）弃用。
NSURLResponse *requestResponse; NSData *requestHandler = [NSURLConnection sendSynchronousRequest:request returningResponse:&requestResponse error:nil]; NSString *requestReply = [[NSString alloc] initWithBytes:[requestHandler bytes] length:[requestHandler length] encoding:NSASCIIStringEncoding]; NSLog(@"requestReply: %@", requestReply);
通过使用RestKit，您可以发出简单的POST请求（有关详细信息，请参阅此GitHub页面）。
在头文件中导入RestKit。
#import <RestKit/RestKit.h>
然后你可以从创建一个新的RKRequest开始。
RKRequest *MyRequest = [[RKRequest alloc] initWithURL:[[NSURL alloc] initWithString:@"http://myurl.com/FakeUrl/"]];
然后指定要进行的请求类型（在本例中为POST请求）。
MyRequest.method = RKRequestMethodPOST;
MyRequest.HTTPBodyString = YourPostString;
然后在additionalHTTPHeaders中将您的请求设置为JSON。
MyRequest.additionalHTTPHeaders = [[NSDictionary alloc] initWithObjectsAndKeys:@"application/json", @"Content-Type", @"application/json", @"Accept", nil];
最后，您可以发送请求。
[MyRequest send];
此外，您可以NSLog您的要求看到结果。
RKResponse *Response = [MyRequest sendSynchronously];
NSLog(@"%@", Response.bodyAsString);
资料来源：RestKit.org和Me。
-(void)postmethod
{
NSString * post =[NSString stringWithFormat:@"Email=%@&Password=%@",_txt_uname.text,_txt_pwd.text];
NSData *postdata= [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength=[NSString stringWithFormat:@"%lu",(unsigned long)[postdata length]];
NSMutableURLRequest *request= [[NSMutableURLRequest alloc]init];
NSLog(@"%@",app.mainurl);
// NSString *str=[NSString stringWithFormat:@"%@Auth/Login",app.mainurl];
NSString *str=YOUR URL;
[request setURL:[NSURL URLWithString:str]];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postdata];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *returnstring=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSMutableDictionary *dict=[returnstring JSONValue];
NSLog(@"%@",dict);
}
-(void)GETMethod
{
NSString *appurl;
NSString *temp =@"YOUR URL";
appurl = [NSString stringWithFormat:@"%@uid=%@&cid=%ld",temp,user_id,(long)clubeid];
appurl = [appurl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:appurl]];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse: nil error: nil ];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding: NSUTF8StringEncoding];
NSMutableDictionary *dict_eventalldata=[returnString JSONValue];
NSString *success=[dict_eventalldata objectForKey:@"success"];
}
获取请求：
-(void)fetchData{
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSData* data = [NSData dataWithContentsOfURL:[NSURL
URLWithString:@"yourURL"]];
NSLog(@"LatestURL:%@",data);
NSError* error=nil;
NSDictionary *jsonDict= [NSJSONSerialization JSONObjectWithData:data
options:kNilOptions error:&error];
NSLog(@"JSON = %@", [[NSString alloc] initWithData:data encoding:
NSUTF8StringEncoding]);
dispatch_async(dispatch_get_main_queue(), ^{
NSDictionary *statuses=[jsonDict objectForKey:@"result"];
NSLog(@"SomeStatus :%@",statuses);
if (!statuses)
{
NSLog(@"Error in Json :%@",error);
}
else
{
[self.arrayTimeline removeAllObjects];
for(NSDictionary *newValu in statuses)
{
[self.arrayTimeline addObject:newValu];
NSString *ProjectName=[newValu objectForKey:@"project_name"];
NSLog(@"Project Name : %@",ProjectName);
NSString *Stage=[newValu objectForKey:@"stage_name"];
NSLog(@"Stage : %@",Stage);
NSString *CompTime=[newValu objectForKey:@"completion_time"];
NSLog(@"Completion Time : %@",CompTime);
NSString *Status=[newValu objectForKey:@"status"];
NSLog(@"Status : %@",Status);
}
[self.projectTimelineTable reloadData];
});
} }); }
JSON响应：{“status”：“success”，“name”：“project1”，“address”：“badkal mor metro station”，“state”：“haryana”，“city”：“faridabad”，“start_time” ：“1480586013”，“current_stage”：“招标接受”，“经理”：“不可用”，“completion_time”：“1480464000”}
你可以得到像名称，start_time等键值，并在标签上显示
查看control.h
@interface ViewController UIViewController<UITableViewDataSource,UITableViewDelegate>
@property (weak, nonatomic) IBOutlet UITableView *tableView;
@property (strong,nonatomic)NSArray *array;
@property NSInteger select;
@end
view.m
- (void)viewDidLoad {
[super viewDidLoad];
NSString *urlString = [NSString stringWithFormat: @"https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=11.021459,76.916332&radius=2000&types=atm&sensor=false&key=AIzaS yD7c1IID7zDCdcfpC69fC7CUqLjz50mcls"];
NSURL *url = [NSURL URLWithString: urlString];
NSData *data = [NSData dataWithContentsOfURL:url];
NSDictionary *jsonData = [NSJSONSerialization JSONObjectWithData:
data options: 0 error: nil];
_array = [[NSMutableArray alloc]init];
_array = [[jsonData objectForKey:@"results"] mutableCopy];
[_tableView reloadData];}
// Do any additional setup after loading the view, typically from a
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section {
return _array.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellid = @"cell";
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:cellid];
cell = [[UITableViewCell
alloc]initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:cellid];
cell.textLabel.text = [[_array
valueForKeyPath:@"name"]objectAtIndex:indexPath.row];
cell.detailTextLabel.text = [[_array
valueForKeyPath:@"vicinity"]objectAtIndex:indexPath.row];
NSURL *imgUrl = [NSURL URLWithString:[[_array
valueForKey:@"icon"]objectAtIndex:indexPath.row]];
NSData *imgData = [NSData dataWithContentsOfURL:imgUrl];
cell.imageView.layer.cornerRadius =
cell.imageView.frame.size.width/2;
cell.imageView.layer.masksToBounds = YES;
cell.imageView.image = [UIImage imageWithData:imgData];
return cell;
}
@end
tablecell.h
@interface TableViewCell : UITableViewCell
@property (weak, nonatomic) IBOutlet UIImageView *imgView;
@property (weak, nonatomic) IBOutlet UILabel *lblName;
@property (weak, nonatomic) IBOutlet UILabel *lblAddress;