iOS Nsurlcache, ASI settings cache and usage steps

1 a Nsurlcache2 steps to use the cache3 //get a global cache object4Nsurlcache *cache =[Nsurlcache Sharedurlcache];5 6 //Set Cache capacity7Cache.memorycapacity =1024x768*1024x768;8Cache.diskcapacity = -*1024x768*1024x768;9 Ten //set the requested cache policy OneRequest.cachepolicy =Nsurlrequestreturncachedataelseload; A  - Second, ASI - 1. How to use the cache the 1>Caching Individual requests - //1. Get a global cache object (determines where the cache is stored and where to store it) -Asidownloadcache *cache =[Asidownloadcache Sharedcache]; - //Set the default cache load policy +Cache.defaultcachepolicy =Asidonotreadfromcachecachepolicy; -  + //2. Set the cache object for the request object (which cache object to use) ARequest.downloadcache =Cache; at  - //3. Set the cache load policy for the request object -Request.cachepolicy =Asionlyloadifnotcachedcachepolicy; - //send a request if there is no cache -  - //4. Set the cache storage policy for the request object (length of storage) inRequest.cachestoragepolicy =Asicachepermanentlycachestoragepolicy; - //Permanent Storage to  +Note the priority of the cache load policy: request.cachepolicy >Cache.defaultcachepolicy -  the 2>Cache all requests * //1. Get a global cache object (determines where the cache is stored and where to store it) $Asidownloadcache *cache =[Asidownloadcache Sharedcache];Panax Notoginseng //Set the default cache load policy -Cache.defaultcachepolicy =Asionlyloadifnotcachedcachepolicy; the  + //2. Setting the global cache object A [ASIHTTPRequest Setdefaultcache:cache]; the  + 2. Send a request - 1>Sync Request $ [Request startsynchronous]; $  - 2>Asynchronous Request - [Request startasynchronous]; the  - 3. Get\postWuyi 1>GET Request theASIHTTPRequest *request =[ASIHTTPRequest Requestwithurl:url]; -  Wu 2>POST Request -Asiformdatarequest *request =[Asiformdatarequest Requestwithurl:url]; About //add normal parameter (non-file parameter) $[Request Setpostvalue:@"Zhangsan"Forkey:@"username"]; -[Request Setpostvalue:@"123"Forkey:@"pwd"]; -  - 4. File Download A //the path to where files are stored (where files are downloaded) +Request.downloaddestinationpath =filepath; the //set up Download agent (listen for download progress) -Request.downloadprogressdelegate =Self.circleview; $ //Support Breakpoint Download theRequest.allowresumeforfiledownloads =YES; the  the 5. File Upload the //Add File parameter (file: path to upload files) -[Request Setfile:file Forkey:@"file"]; in[Request Setfile:file Withfilename:@"123.txt"Andcontenttype:@"Text/plain"Forkey:@"file"]; the[Request Setdata:data Withfilename:@"Minion.png"Andcontenttype:@"Image/png"Forkey:@"file"]; the  About //set up upload agent (listen for upload progress) theRequest.uploadprogressdelegate =Self.circleview; the  the 6. The process of listening for requests + 1>Proxy Method - //Set up proxy theRequest.Delegate=Self ;Bayi //Compliance Agreement the asihttprequestdelegate the //implementing proxy methods in the Protocol -- (void) requeststarted: (ASIHTTPRequest *) request; -- (voidRequest: (ASIHTTPRequest *) Request Didreceivedata: (NSData *) Data the- (void) requestfinished: (ASIHTTPRequest *) request; the- (void) requestfailed: (ASIHTTPRequest *) request; the  the 2>SEL - //Set up proxy theRequest.Delegate=Self ; the //Set method Name the[Request Setdidstartselector: @selector (start)];//starts sending the request, the proxy's Start method is invoked94 // .... the  the 3>Block the[Request setstartedblock:^{98NSLog (@"setstartedblock----"); About }]; - 101[Request setdatareceivedblock:^ (NSData *data) {102NSLog (@"setdatareceivedblock----");103 }];104  the[Request setcompletionblock:^{106NSLog (@"setcompletionblock----");107 }];108 109[Self setfailedblock:^{ theNSLog (@"setfailedblock----");111 }]; the 113 7get the server's response through the request object the 1>Get response header information the@property (Atomic, retain) nsdictionary *responseheaders; the 117 2>Get the response Body (entity content)118-(NSData *) responsedata;//returns binary data directly to the server119-(NSString *) responsestring;//Convert binary data to strings (easy debugging)

iOS Nsurlcache, ASI settings cache and usage steps