IOS-based ASIHttp simple network request implementation

Description:

ASIHttpRequest is a method used to apply a third-party library. It uses code quickly to reduce the amount of code and improve efficiency. preparation:

I. Import a third-party library ASIHttpRequest

2. Many errors will be reported for two reasons: one is to import the four files in Xcode, and the other is that it does not use automatic reference count.

Iii. solution 1. Import four system files: MobileCoreServices. framework SystemConfiguration. framework

CFNetwork. framework libz.1.2.5.dylib 2. manually disable compile sources in the buide phase of the Project

In, click the ASIHhttp type, and add-fno-objc-arc 3. Run the command again, so that no error is reported for implementing asynchronous post requests.

# Import "ASIHTTPRequest. h"

-(Void) viewDidLoad

{

[Self requestHttp];

}

-(Void) requestHttp

{

// 1200792098331

// Create a URL object first

NSURL * url = [NSURL urlWithString: [NSString stringWithFormat: @ "http://api.kuaidi100.com/api? Id = d6b9888b0da96f6b & com =%@ & nu =%@ & show = 0 & muti = 1 & order = desc & display = mobile ", name];

 

NSURL * url = [NSURL URLWithString: [NSString stringWithFormat: @ "http://api.kuaidi100.com/api? Id = d6b9888b0da96f6b & com =%@ & nu =%@ & show = 0 & muti = 1 & order = desc & display = mobile "];

NSLog (@ "url ======%@", url );

Create another request object

ASIHTTPRequest * request = [ASIHTTPRequest requestWithURL: url];

Send the request and return the corresponding JSon data

[Request setCompletionBlock:

^ {

NSError * error = nil;

// Create a dictionary to receive the returned JSON data

NSDictionary * dictionary = [NSJSONSerialization JSONObjectWithData: request. responseData options: kNilOptions error: & error];

NSLog (@ "% @", dictionary );

 

// Create an array and store the data in the dictionary in the array.

NSArray * arr = [dictionary objectForKey: @ "data"];

 

// Change the data in the array and store the changed data in a variable array.

For (NSDictionary * temp in arr)

{

[Self. array addObject: [NSString stringWithFormat: @ "% @ \ n % @", [temp objectForKey: @ "time"], [temp objectForKey: @ "context"];

}

// Assign the data in the variable array after the variant to a variable String object in the case of a string.

For (NSString * temp in self. array)

{

[Self. mutableString appendString: [NSString stringWithFormat: @ "% @ \ n", temp];

 

NSLog (@ "temp ===%@", temp );

}

// Here I assign the variable string after the variant to a lable

Self. jieGuoLale. text = self. mutableString;

NSLog (@ "self. jieGuoLale. text =====%@", self. jieGuoLale. text );

}];

 

// If the request fails to be sent, a warning box is displayed.

 

[Request setFailedBlock:

^ {

UIAlertView * alerteView = [[UIAlertView alloc] initWithTitle: @ "prompt" message: @ "problem warning: the network connection is abnormal. Please try again later" delegate: nil cancelButtonTitle: @ "exit" otherButtonTitles: nil];

[AlerteView show];

}];

// Send an asynchronous request

 

[Request startAsynchronous];