在UIWebView下，可以使用
[[NSURLCache sharedURLCache] removeAllCachedResponses];//清除緩存
當(dāng)使用wkwebview時(shí)候WKWebView清除cookies的方法（iOS9以上）
WKWebsiteDataStore *dateStore = [WKWebsiteDataStore defaultDataStore];
??[dateStore fetchDataRecordsOfTypes:[WKWebsiteDataStore allWebsiteDataTypes]
???????????completionHandler:^(NSArray * __nonnull records) {
?????????????for (WKWebsiteDataRecord *record in records)
?????????????{
//?????????????? if ( [record.displayName containsString:@"baidu"]) //取消備注如捅，可以針對(duì)某域名清除悉抵，否則是全清
//?????????????? {
?????????????????[[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:record.dataTypes
??????????????????????????????????????forDataRecords:@[record]
????????????????????????????????????completionHandler:^{
??????????????????????????????????????NSLog(@"Cookies for %@ deleted successfully",record.displayName);
????????????????????????????????????}];
//?????????????? }
?????????????}
???????????}];
iOS9一下用這種方法：
NSString *libraryPath = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *cookiesFolderPath = [libraryPath stringByAppendingString:@"/Cookies"];
NSError *errors;
[[NSFileManager defaultManager] removeItemAtPath:cookiesFolderPath error:&errors];
查看cookie
NSHTTPCookie *cookie;
NSHTTPCookieStorage *cookieJar = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (cookie in [cookieJar cookies]) {
??NSLog(@"%@", cookie);
}
