blocks|key|144986|text|您不能仅使用NSURLCache删除缓存。经过多次尝试，我可以通过以下步骤清除缓存(从iOS+8.1.1开始)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|144987|144988|使用NSURLCache删除缓存的方式与您在UIWebView上使用的方式相同。如果您使用的是WKProccessPool，请重新初始化它。|ordered-list-item|144989|删除Library.|offset|length|style|CODE|144990|Delete+all+WKWebViews|144991|中的Caches目录|144992|下次创建WKWebView时，应清除缓存。|144993|ShingoFukuyama/WKWebViewTips|144994|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/ShingoFukuyama/WKWebViewTips^0|0|0|0|2|7|0|0|2|6|0|0|0|S|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|12|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|13|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|14|8|@$H|15|I|16|J|K]]|9|@]|A|$]]|$1|L|3|M|5|E|7|17|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|18|8|@$H|19|I|1A|J|K]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1B|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1C|8|@]|9|@$H|1D|I|1E|1|1F]]|A|$]]|$1|T|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]]|U|$V|$5|W|X|Y|A|$Z|10]]]]

You cannot delete caches only with NSURLCache.
After much cut-and-try, I could clear caches by the following steps (as of iOS 8.1.1):

<ol>
<li>Use NSURLCache to delete caches in the same way as you used to do on UIWebView. If you use WKProccessPool, re-initialize it.</li>
<li>Delete <code>Caches</code> directory in <code>Library</code>.</li>
<li>Delete all WKWebViews</li>
</ol>

Next time you create WKWebView, caches should be cleared.

<a href="https://github.com/ShingoFukuyama/WKWebViewTips" rel="nofollow">ShingoFukuyama/WKWebViewTips</a>

blocks|key|2720288|text|我能够通过让我的WKWebView评估window.location.reload来解决这个问题。我在web视图上有一个点击手势识别器，每当它检测到双击两次触摸时，我就会运行以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2720289|webView.evaluateJavaScript("window.location.reload(true)",+completionHandler:+nil);|code-block|syntax|javascript|2720290|希望这能有所帮助。|2720291|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I was able to solve this issue by having my WKWebView evaluate window.location.reload. I have a tap gesture recognizer on the web view and whenever it detects a double tap with 2 touches, I run the following:

<pre><code>webView.evaluateJavaScript("window.location.reload(true)", completionHandler: nil);
</code></pre>

Hope this helps.

blocks|key|146328|text|在iOS+9中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|146329|//+Optional+data
NSSet+*websiteDataTypes
=+[NSSet+setWithArray:@[
++++++++++++++++++++++++WKWebsiteDataTypeDiskCache,
++++++++++++++++++++++++//WKWebsiteDataTypeOfflineWebApplicationCache,
++++++++++++++++++++++++WKWebsiteDataTypeMemoryCache,
++++++++++++++++++++++++//WKWebsiteDataTypeLocalStorage,
++++++++++++++++++++++++//WKWebsiteDataTypeCookies,
++++++++++++++++++++++++//WKWebsiteDataTypeSessionStorage,
++++++++++++++++++++++++//WKWebsiteDataTypeIndexedDBDatabases,
++++++++++++++++++++++++//WKWebsiteDataTypeWebSQLDatabases,
++++++++++++++++++++++++//WKWebsiteDataTypeFetchCache,+//(iOS+11.3,+*)
++++++++++++++++++++++++//WKWebsiteDataTypeServiceWorkerRegistrations,+//(iOS+11.3,+*)
++++++++++++++++++++++++]];
//+All+kinds+of+data
//+NSSet+*websiteDataTypes+=+[WKWebsiteDataStore+allWebsiteDataTypes];
//+Date+from
NSDate+*dateFrom+=+[NSDate+dateWithTimeIntervalSince1970:0];
//+Execute
[[WKWebsiteDataStore+defaultDataStore]+removeDataOfTypes:websiteDataTypes+modifiedSince:dateFrom+completionHandler:%5E{
+++//+Done
}];|code-block|syntax|javascript|146330|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In iOS 9

<pre><code>// Optional data
NSSet *websiteDataTypes
= [NSSet setWithArray:@[
 WKWebsiteDataTypeDiskCache,
 //WKWebsiteDataTypeOfflineWebApplicationCache,
 WKWebsiteDataTypeMemoryCache,
 //WKWebsiteDataTypeLocalStorage,
 //WKWebsiteDataTypeCookies,
 //WKWebsiteDataTypeSessionStorage,
 //WKWebsiteDataTypeIndexedDBDatabases,
 //WKWebsiteDataTypeWebSQLDatabases,
 //WKWebsiteDataTypeFetchCache, //(iOS 11.3, *)
 //WKWebsiteDataTypeServiceWorkerRegistrations, //(iOS 11.3, *)
 ]];
// All kinds of data
// NSSet *websiteDataTypes = [WKWebsiteDataStore allWebsiteDataTypes];
// Date from
NSDate *dateFrom = [NSDate dateWithTimeIntervalSince1970:0];
// Execute
[[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:websiteDataTypes modifiedSince:dateFrom completionHandler:^{
 // Done
}];
</code></pre>

blocks|key|2932787|text|更新后的Swift+5版本：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2932788|WKWebsiteDataStore.default().removeData(ofTypes:+[WKWebsiteDataTypeDiskCache,+WKWebsiteDataTypeMemoryCache],+modifiedSince:+Date(timeIntervalSince1970:+0),+completionHandler:{+})|code-block|syntax|javascript|2932789|2932790|Swift版本：|2932791|if+#available(iOS+9.0,+*)+{
++let+websiteDataTypes+=+NSSet(array:+[WKWebsiteDataTypeDiskCache,+WKWebsiteDataTypeMemoryCache])
++let+date+=+NSDate(timeIntervalSince1970:+0)
++WKWebsiteDataStore.defaultDataStore().removeDataOfTypes(websiteDataTypes+as!+Set<String>,+modifiedSince:+date,+completionHandler:{+})
}+else+{
++++var+libraryPath+=+NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.LibraryDirectory,+NSSearchPathDomainMask.UserDomainMask,+false).first!
++++libraryPath+%2B=+"/Cookies"

++++do+{
++++++try+NSFileManager.defaultManager().removeItemAtPath(libraryPath)
++++}+catch+{
++++++print("error")
++++}
++++NSURLCache.sharedURLCache().removeAllCachedResponses()
}|2932792|Swift+3版本：|2932793|+++if+#available(iOS+9.0,+*)
++++{
++++++++let+websiteDataTypes+=+NSSet(array:+[WKWebsiteDataTypeDiskCache,+WKWebsiteDataTypeMemoryCache])
++++++++let+date+=+NSDate(timeIntervalSince1970:+0)
++++++++
++++++++WKWebsiteDataStore.default().removeData(ofTypes:+websiteDataTypes+as!+Set<String>,+modifiedSince:+date+as+Date,+completionHandler:{+})
++++}
++++else
++++{
++++++++var+libraryPath+=+NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.libraryDirectory,+FileManager.SearchPathDomainMask.userDomainMask,+false).first!
++++++++libraryPath+%2B=+"/Cookies"
++++++++
++++++++do+{
++++++++++++try+FileManager.default.removeItem(atPath:+libraryPath)
++++++++}+catch+{
++++++++++++print("error")
++++++++}
++++++++URLCache.shared.removeAllCachedResponses()
++++}|2932794|entityMap^0|0|E|0|0|0|0|8|0|0|0|A|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|N|3|O|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|P|3|Q|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|R|3|S|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|T|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|U|$]]

Updated Swift 5 version:
<pre><code>WKWebsiteDataStore.default().removeData(ofTypes: [WKWebsiteDataTypeDiskCache, WKWebsiteDataTypeMemoryCache], modifiedSince: Date(timeIntervalSince1970: 0), completionHandler:{ })
</code></pre>
<hr />
Swift version:
<pre><code>if #available(iOS 9.0, *) {
 let websiteDataTypes = NSSet(array: [WKWebsiteDataTypeDiskCache, WKWebsiteDataTypeMemoryCache])
 let date = NSDate(timeIntervalSince1970: 0)
 WKWebsiteDataStore.defaultDataStore().removeDataOfTypes(websiteDataTypes as! Set&lt;String&gt;, modifiedSince: date, completionHandler:{ })
} else {
 var libraryPath = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.LibraryDirectory, NSSearchPathDomainMask.UserDomainMask, false).first!
 libraryPath += &quot;/Cookies&quot;

 do {
 try NSFileManager.defaultManager().removeItemAtPath(libraryPath)
 } catch {
 print(&quot;error&quot;)
 }
 NSURLCache.sharedURLCache().removeAllCachedResponses()
}
</code></pre>
Swift 3 version:
<pre><code> if #available(iOS 9.0, *)
 {
 let websiteDataTypes = NSSet(array: [WKWebsiteDataTypeDiskCache, WKWebsiteDataTypeMemoryCache])
 let date = NSDate(timeIntervalSince1970: 0)
 
 WKWebsiteDataStore.default().removeData(ofTypes: websiteDataTypes as! Set&lt;String&gt;, modifiedSince: date as Date, completionHandler:{ })
 }
 else
 {
 var libraryPath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.libraryDirectory, FileManager.SearchPathDomainMask.userDomainMask, false).first!
 libraryPath += &quot;/Cookies&quot;
 
 do {
 try FileManager.default.removeItem(atPath: libraryPath)
 } catch {
 print(&quot;error&quot;)
 }
 URLCache.shared.removeAllCachedResponses()
 }
</code></pre>

blocks|key|2932796|text|对我来说很管用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2932797|+if+#available(iOS+9.0,+*)+{
++++++++++++let+websiteDataTypes+=+NSSet(array:+[WKWebsiteDataTypeDiskCache,+WKWebsiteDataTypeMemoryCache])
++++++++++++let+date+=+NSDate(timeIntervalSince1970:+0)
++++++++++++WKWebsiteDataStore.defaultDataStore().removeDataOfTypes(websiteDataTypes+as!+Set<String>,+modifiedSince:+date,+completionHandler:{+})
++++++++}
++++++++else
++++++++{
++++++++++NSURLCache.sharedURLCache().removeAllCachedResponses()
++++++++}|code-block|syntax|javascript|2932798|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

It works for me

<pre><code> if #available(iOS 9.0, *) {
 let websiteDataTypes = NSSet(array: [WKWebsiteDataTypeDiskCache, WKWebsiteDataTypeMemoryCache])
 let date = NSDate(timeIntervalSince1970: 0)
 WKWebsiteDataStore.defaultDataStore().removeDataOfTypes(websiteDataTypes as! Set&lt;String&gt;, modifiedSince: date, completionHandler:{ })
 }
 else
 {
 NSURLCache.sharedURLCache().removeAllCachedResponses()
 }
</code></pre>

blocks|key|2720328|text|类似于iOS+9.0及更高版本的内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2720329|let+store:+WKWebsiteDataStore+=+WKWebsiteDataStore.default()
let+dataTypes:+Set<String>+=+WKWebsiteDataStore.allWebsiteDataTypes()
store.fetchDataRecords(ofTypes:+dataTypes,+completionHandler:+{+(records:+[WKWebsiteDataRecord])+in
++store.removeData(ofTypes:+dataTypes,+for:+records,+completionHandler:+{
++++//+do+your+thing+here
++})
})|code-block|syntax|javascript|2720330|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Something similar for iOS 9.0 and later:

<pre><code>let store: WKWebsiteDataStore = WKWebsiteDataStore.default()
let dataTypes: Set&lt;String&gt; = WKWebsiteDataStore.allWebsiteDataTypes()
store.fetchDataRecords(ofTypes: dataTypes, completionHandler: { (records: [WKWebsiteDataRecord]) in
 store.removeData(ofTypes: dataTypes, for: records, completionHandler: {
 // do your thing here
 })
})
</code></pre>

blocks|key|2720342|text|@Esqarrouth的帖子的Swift+3.x版本|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2720343|func+clearCache()+{
++++if+#available(iOS+9.0,+*)+{
++++++++let+websiteDataTypes+=+NSSet(array:+[WKWebsiteDataTypeDiskCache,+WKWebsiteDataTypeMemoryCache])
++++++++let+date+=+NSDate(timeIntervalSince1970:+0)
++++++++WKWebsiteDataStore.default().removeData(ofTypes:+websiteDataTypes+as!+Set<String>,+modifiedSince:+date+as+Date,+completionHandler:{+})
++++}+else+{
++++++++var+libraryPath+=+NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.libraryDirectory,+FileManager.SearchPathDomainMask.userDomainMask,+false).first!
++++++++libraryPath+%2B=+"/Cookies"

++++++++do+{
++++++++++++try+FileManager.default.removeItem(atPath:+libraryPath)
++++++++}+catch+{
++++++++++++print("error")
++++++++}
++++++++URLCache.shared.removeAllCachedResponses()
++++}
}|code-block|syntax|javascript|2720344|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift 3.x version of @Esqarrouth's post

<pre><code>func clearCache() {
 if #available(iOS 9.0, *) {
 let websiteDataTypes = NSSet(array: [WKWebsiteDataTypeDiskCache, WKWebsiteDataTypeMemoryCache])
 let date = NSDate(timeIntervalSince1970: 0)
 WKWebsiteDataStore.default().removeData(ofTypes: websiteDataTypes as! Set&lt;String&gt;, modifiedSince: date as Date, completionHandler:{ })
 } else {
 var libraryPath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.libraryDirectory, FileManager.SearchPathDomainMask.userDomainMask, false).first!
 libraryPath += "/Cookies"

 do {
 try FileManager.default.removeItem(atPath: libraryPath)
 } catch {
 print("error")
 }
 URLCache.shared.removeAllCachedResponses()
 }
}
</code></pre>

blocks|key|2720399|text|成功了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2720400|Swift+3.版本。|2720401|对于较旧版本的Swift|offset|length|2720402|import+Foundation
import+WebKit

func+removeWebData()+{

++++if+#available(iOS+9.0,+*)+{

++++++++let+websiteDataTypes+=+WKWebsiteDataStore.allWebsiteDataTypes()
++++++++let+date+=+NSDate(timeIntervalSince1970:+0)

++++++++WKWebsiteDataStore.default().removeData(ofTypes:+websiteDataTypes,+modifiedSince:+date+as+Date,+completionHandler:+{
++++++++++++#if+DEBUG

++++++++++++++++print("remove+all+data+in+iOS9+later")

++++++++++++#endif
++++++++})

++++}else+{

++++++++//+Remove+the+basic+cache.
++++++++URLCache.shared.removeAllCachedResponses()

++++++++//+Delete+system+cookie+store+in+the+app
++++++++let+storage+=+HTTPCookieStorage.shared
++++++++if+let+cookies+=+storage.cookies+{
++++++++++++for+cookie+in+cookies+{
++++++++++++++++storage.deleteCookie(cookie)
++++++++++++}
++++++++}


++++++++do+{
++++++++++++//+folder+를+삭제하는+대신+contents+를+삭제하는+이유?
++++++++++++//+MainVC+가+호출되면+cache,+cookie가+발생하므로+로딩시+확인된+cache,+cookie+폴더의
++++++++++++//+contents+에+대해서만+삭제+진행.

++++++++++++//+Clear+web+cache
++++++++++++try+deleteLibraryFolderContents(folder:+"Caches")

++++++++++++//+Remove+all+cookies+stored+by+the+site.+This+includes+localStorage,+sessionStorage,+and+WebSQL/IndexedDB.
++++++++++++try+deleteLibraryFolderContents(folder:+"Cookies")

++++++++++++//+Removes+all+app+cache+storage.
++++++++++++try+deleteLibraryFolder(folder:+"WebKit")

++++++++}+catch+{
++++++++++++#if+DEBUG

++++++++++++++++print("Delete+library+folders+error+in+iOS9+below")

++++++++++++#endif

++++++++}
++++}
}

/**
+Delete+folder+in+library

+-+parameter+folder:+a+folder+you+want+to+delete

+-+throws:+throws+an+error
+*/
func+deleteLibraryFolder(folder:+String)+throws+{
++++let+manager+=+FileManager.default
++++let+library+=+manager.urls(for:+.libraryDirectory,+in:+.userDomainMask).first!
++++let+dir+=+library.appendingPathComponent(folder)
++++try+manager.removeItem(at:+dir)
}

/**
+Delete+contents+in+library+folder

+-+parameter+folder:+target+folder

+-+throws:+throws+an+error
+*/
private+func+deleteLibraryFolderContents(folder:+String)+throws+{
++++let+manager+=+FileManager.default
++++let+library+=+manager.urls(for:+FileManager.SearchPathDirectory.libraryDirectory,+in:+.userDomainMask)[0]
++++let+dir+=+library.appendingPathComponent(folder)
++++let+contents+=+try+manager.contentsOfDirectory(atPath:+dir.path)
++++for+content+in+contents+{
++++++++do+{
++++++++++++try+manager.removeItem(at:+dir.appendingPathComponent(content))
++++++++}+catch+where+((error+as+NSError).userInfo[NSUnderlyingErrorKey]+as?+NSError)?.code+==+Int(EPERM)+{
++++++++++++//+"EPERM:+operation+is+not+permitted".+We+ignore+this.
++++++++++++#if+DEBUG

++++++++++++++++print("Couldn't+delete+some+library+contents.")

++++++++++++#endif
++++++++}
++++}
}|code-block|syntax|javascript|2720403|entityMap|0|LINK|mutability|MUTABLE|url|https://gist.github.com/dakeshi/6915b6681cbc29327dcc9b27cef263b8^0|0|0|7|5|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@$F|X|G|Y|1|Z]]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

Worked 
Swift 3. Version. 
For Older Version <a href="https://gist.github.com/dakeshi/6915b6681cbc29327dcc9b27cef263b8" rel="nofollow noreferrer">Swift</a>

<pre><code>import Foundation
import WebKit

func removeWebData() {

 if #available(iOS 9.0, *) {

 let websiteDataTypes = WKWebsiteDataStore.allWebsiteDataTypes()
 let date = NSDate(timeIntervalSince1970: 0)

 WKWebsiteDataStore.default().removeData(ofTypes: websiteDataTypes, modifiedSince: date as Date, completionHandler: {
 #if DEBUG

 print("remove all data in iOS9 later")

 #endif
 })

 }else {

 // Remove the basic cache.
 URLCache.shared.removeAllCachedResponses()

 // Delete system cookie store in the app
 let storage = HTTPCookieStorage.shared
 if let cookies = storage.cookies {
 for cookie in cookies {
 storage.deleteCookie(cookie)
 }
 }


 do {
 // folder 를 삭제하는 대신 contents 를 삭제하는 이유?
 // MainVC 가 호출되면 cache, cookie가 발생하므로 로딩시 확인된 cache, cookie 폴더의
 // contents 에 대해서만 삭제 진행.

 // Clear web cache
 try deleteLibraryFolderContents(folder: "Caches")

 // Remove all cookies stored by the site. This includes localStorage, sessionStorage, and WebSQL/IndexedDB.
 try deleteLibraryFolderContents(folder: "Cookies")

 // Removes all app cache storage.
 try deleteLibraryFolder(folder: "WebKit")

 } catch {
 #if DEBUG

 print("Delete library folders error in iOS9 below")

 #endif

 }
 }
}

/**
 Delete folder in library

 - parameter folder: a folder you want to delete

 - throws: throws an error
 */
func deleteLibraryFolder(folder: String) throws {
 let manager = FileManager.default
 let library = manager.urls(for: .libraryDirectory, in: .userDomainMask).first!
 let dir = library.appendingPathComponent(folder)
 try manager.removeItem(at: dir)
}

/**
 Delete contents in library folder

 - parameter folder: target folder

 - throws: throws an error
 */
private func deleteLibraryFolderContents(folder: String) throws {
 let manager = FileManager.default
 let library = manager.urls(for: FileManager.SearchPathDirectory.libraryDirectory, in: .userDomainMask)[0]
 let dir = library.appendingPathComponent(folder)
 let contents = try manager.contentsOfDirectory(atPath: dir.path)
 for content in contents {
 do {
 try manager.removeItem(at: dir.appendingPathComponent(content))
 } catch where ((error as NSError).userInfo[NSUnderlyingErrorKey] as? NSError)?.code == Int(EPERM) {
 // "EPERM: operation is not permitted". We ignore this.
 #if DEBUG

 print("Couldn't delete some library contents.")

 #endif
 }
 }
}
</code></pre>

blocks|key|142780|text|这需要我几个小时的时间，但这对我来说很有效！在loadRequest之后，我做了一个reloadFromOrigin！所以我强制清空缓存！WKWebView+loadRequest:请求；WKWebView+reloadFromOrigin；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|142781|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

It takes me a few hours, but this works for me! 
After the loadRequest, I make a reloadFromOrigin! So I force empty cache! 
[WKWebView loadRequest:request];
[WKWebView reloadFromOrigin];

blocks|key|2720415|text|删除缓存和Cookie|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2720416|#+WKWebView%2BClean.swift

import+WebKit

extension+WKWebView+{
++++class+func+clean()+{
++++++++guard+#available(iOS+9.0,+*)+else+{return}

++++++++HTTPCookieStorage.shared.removeCookies(since:+Date.distantPast)

++++++++WKWebsiteDataStore.default().fetchDataRecords(ofTypes:+WKWebsiteDataStore.allWebsiteDataTypes())+{+records+in
++++++++++++records.forEach+{+record+in
++++++++++++++++WKWebsiteDataStore.default().removeData(ofTypes:+record.dataTypes,+for:+[record],+completionHandler:+{})
++++++++++++++++#if+DEBUG
++++++++++++++++++++print("WKWebsiteDataStore+record+deleted:",+record)
++++++++++++++++#endif
++++++++++++}
++++++++}++
++++}
}|code-block|syntax|javascript|2720417|示例：|2720418|import+WebKit
...
WKWebview.clean()|2720419|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Remove Cache and Cookies

<pre><code># WKWebView+Clean.swift

import WebKit

extension WKWebView {
 class func clean() {
 guard #available(iOS 9.0, *) else {return}

 HTTPCookieStorage.shared.removeCookies(since: Date.distantPast)

 WKWebsiteDataStore.default().fetchDataRecords(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes()) { records in
 records.forEach { record in
 WKWebsiteDataStore.default().removeData(ofTypes: record.dataTypes, for: [record], completionHandler: {})
 #if DEBUG
 print("WKWebsiteDataStore record deleted:", record)
 #endif
 }
 } 
 }
}
</code></pre>

Example:

<pre><code>import WebKit
...
WKWebview.clean()
</code></pre>

blocks|key|146397|text|获取缓存字典路径并将其删除|type|unstyled|depth|inlineStyleRanges|entityRanges|data|146398|+++NSFileManager+*fileManager+=+[NSFileManager+defaultManager];
+++NSString+*documentsPath+=+[NSSearchPathForDirectoriesInDomains(NSCachesDirectory,+NSUserDomainMask,+YES)+objectAtIndex:0];
++NSError+*error;
++BOOL+success+=+[fileManager+removeItemAtPath:documentsPath+error:&error];
++++NSLog(@"%25d",success);|code-block|syntax|javascript|146399|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

get the cache dictionary path and delete it 

<pre><code> NSFileManager *fileManager = [NSFileManager defaultManager];
 NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) objectAtIndex:0];
 NSError *error;
 BOOL success = [fileManager removeItemAtPath:documentsPath error:&amp;error];
 NSLog(@"%d",success);
</code></pre>

blocks|key|142791|text|private+func+deleteCache(){
++++++++if+#available(iOS+9.0,+*)+{
++++++++++let+websiteDataTypes+=+NSSet(array:+[WKWebsiteDataTypeDiskCache,+WKWebsiteDataTypeMemoryCache])
++++++++++let+date+=+NSDate(timeIntervalSince1970:+0)
++++++++++++WKWebsiteDataStore.default().removeData(ofTypes:+websiteDataTypes+as!+Set<String>,+modifiedSince:+date+as+Date,+completionHandler:{+})
++++++++}+else+{
++++++++++++var+libraryPath+=+NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.libraryDirectory,+FileManager.SearchPathDomainMask.userDomainMask,+false).first!
++++++++++++libraryPath+%2B=+"/Cookies"

++++++++++++do+{
++++++++++++++++try+FileManager.default.removeItem(atPath:+libraryPath)
++++++++++++}+catch+{
++++++++++++++print("error")
++++++++++++}
++++++++++++URLCache.shared.removeAllCachedResponses()
++++++++}
++++}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|142792|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>private func deleteCache(){
 if #available(iOS 9.0, *) {
 let websiteDataTypes = NSSet(array: [WKWebsiteDataTypeDiskCache, WKWebsiteDataTypeMemoryCache])
 let date = NSDate(timeIntervalSince1970: 0)
 WKWebsiteDataStore.default().removeData(ofTypes: websiteDataTypes as! Set&lt;String&gt;, modifiedSince: date as Date, completionHandler:{ })
 } else {
 var libraryPath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.libraryDirectory, FileManager.SearchPathDomainMask.userDomainMask, false).first!
 libraryPath += "/Cookies"

 do {
 try FileManager.default.removeItem(atPath: libraryPath)
 } catch {
 print("error")
 }
 URLCache.shared.removeAllCachedResponses()
 }
 }
</code></pre>

blocks|key|2932926|text|swift5|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2932927|URLCache.shared.removeAllCachedResponses()|code-block|syntax|javascript|2932928|entityMap^0|0|6|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

swift5
<pre><code>URLCache.shared.removeAllCachedResponses()
</code></pre>

blocks|key|2720468|text|通过删除所有WKWebView数据，这一行代码应该可以完成任务。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2720469|WKWebsiteDataStore.default().removeData(ofTypes:+WKWebsiteDataStore.allWebsiteDataTypes(),+modifiedSince:+Date(timeIntervalSince1970:+0),+completionHandler:+{})|code-block|syntax|javascript|2720470|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This one-liner should do the trick by removing all WKWebView data.
<pre><code>WKWebsiteDataStore.default().removeData(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes(), modifiedSince: Date(timeIntervalSince1970: 0), completionHandler: {})
</code></pre>

Any one worked with <code>WKWebview</code> and tried to clear cache ? If yes, how to do? any example ?

P.S. : Normal NSURLCache is not working.

How to remove cache in WKWebview?

是否有人使用WKWebview并试图清除缓存？如果是，该怎么办？有什么例子吗？P.S. : Normal NSURLCache不工作。

问如何在WKWebview中删除缓存？
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