Request method in Network request 4

Common network requests have synchronous get, synchronous post, asynchronous get, asynchronous post.

One, synchronous get

1. Initialize the URL to an OC string object nsstring *urlstr = [NSString stringwithformat:@ "%@?query=%@®ion=%@&output=json&ak= 6e823f587c95f0148c19993539b99295 ", Kbusinessinfourl, @" bank ", @" Jinan "]; If Chinese is present in the URL, do urlencode nsstring *newurlstr = [Urlstr stringbyaddingpercentescapesusingencoding: Nsutf8stringencoding]; 2. Build the Network URL object, nsurl nsurl *url = [Nsurl urlwithstring:newurlstr]; 3. Create a network request nsurlrequest *request = [Nsurlrequest requestwithurl:url cachepolicy: Nsurlrequestreloadignoringlocalcachedata Timeoutinterval:10]; Create a sync link nsurlresponse *response = nil; Nserror *error = nil; NSData *data = [nsurlconnection sendsynchronousrequest:request returningresponse:&response error:&error];

When you create a sync link, you can parse it in a corresponding way. The same is true for creating asynchronous connections below.

Two, synchronous post // 1. Initialize OC String objects based on URL      nsstring *urlstr =  [nsstring stringwithformat:@ "%@", kvideourl];     // 2. Creating Nsurl Objects      nsurl *url = [nsurl  URLWITHSTRING:URLSTR];     // 3. Create Request      nsmutableurlrequest *request = [ nsmutableurlrequest requestwithurl:url];     // 4. Creating a parameter String Object      nsstring *parmstr = @ "method =album.channel.get&appkey=mykey&format=json&channel=t&pageno=1&pagesize=10 ";     // 5. Convert string to NSData object      nsdata *pramdata = [ parmstr datausingencoding:nsutf8stringencoding];     // 6. Setting the request body      [request sethttpbody:pramdata];     // 7. How to set the request