{"id":193,"date":"2016-05-19T09:59:56","date_gmt":"2016-05-19T01:59:56","guid":{"rendered":"http:\/\/www.prayerlaputa.com\/?p=193"},"modified":"2016-05-19T09:59:56","modified_gmt":"2016-05-19T01:59:56","slug":"android-4-4-webview%e6%8e%a7%e4%bb%b6%e6%8f%90%e7%a4%baerr_cache_miss%e9%94%99%e8%af%af","status":"publish","type":"post","link":"http:\/\/prayerlaputa.com\/?p=193","title":{"rendered":"Android 4.4 WebView\u63a7\u4ef6\u63d0\u793aERR_CACHE_MISS\u9519\u8bef"},"content":{"rendered":"<p>\u6211\u4eec\u5728\u9875\u9762\uff08\u8be5\u9875\u9762\u4ec5\u4ec5\u7528\u4e8e\u91cd\u5b9a\u5411\u64cd\u4f5c\uff09\u53d1\u8d77\u67d0\u4e2a\u8bf7\u6c42\u3001\u8bf7\u6c42\u6b63\u5e38\uff0c\u4f46\u6309\u4e0b\u7269\u7406\u8fd4\u56de\u952e\u8fd4\u56de\u4e0a\u4e2a\u9875\u9762\u65f6\u9047\u5230\u8fd9\u4e2a\u95ee\u9898\uff0c\u641c\u4e86\u5f88\u591a\u5e16\u5b50\uff0c\u6709\u7684\u60c5\u51b5\u8bf4\u8fd9\u662f\u56e0\u4e3aweb\u7ad9\u70b9\u7684\u9875\u9762\u8bbe\u7f6e\u7684\u7f13\u5b58\u7b56\u7565\u662f\u65e0\u7f13\u5b58\uff0c\u5373http header\u4e2d\u6709\u5982\u4e0b\u5b57\u6bb5\uff1aCache-Control:\u00a0no-store\uff0c\u5982\u4e0b\uff1a<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nHTTP\/1.1 200 OK\nContent-Type: text\/html; charset=utf-8\nTransfer-Encoding: chunked\nConnection: keep-alive\nExpires: Thu, 19 Nov 1981 08:52:00 GMT\nCache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0\nPragma: no-cache\nContent-Encoding: gzip\n<\/pre>\n<p><!--more--><br \/>\n\u6b64\u65f6\u7531\u4e8e\u9875\u9762\u6ca1\u7f13\u5b58\u3001webview\u53bb\u627e\u7f13\u5b58\u5374\u6ca1\u627e\u5230\uff0c\u6b64\u79cd\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u770bweb\u7ad9\u70b9\u4e2d\u201cno-store\u201d\u5b57\u6bb5\u662f\u5426\u6709\u5fc5\u8981\uff0c\u6ca1\u5565\u4f5c\u7528\u7684\u8bdd\u53ef\u4ee5\u5c1d\u8bd5\u53bb\u6389\u201cno-cache\u201d\u8bd5\u8bd5\u770b\uff0c\u53c2\u89c1<a href=\"http:\/\/zhidao.baidu.com\/link?url=t9q1ErSL_ugqXlFWgvcgS4OJaPwRuugfHdKXME8IKD6jENsR6HGGylWPZUhzksoK1AOJk4FyxM5y-MISpkXLUFDWK3uTdIipWeX6YGiFdT3\">\u8fd9\u4e2a\u5e16\u5b50<\/a>\u3002\u53e6\u5916\u8fd8\u6709\u4e00\u79cd\u6539\u6cd5\uff0c\u662f\u76f4\u63a5\u4fee\u6539webview\u63a7\u4ef6\uff0c\u5982\u4e0b\u3002<\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\nif (Build.VERSION.SDK_INT &amp;amp;gt;= 19) {\n mWebView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);\n}\n<\/pre>\n<p>\u4f46\u4fee\u6539webview\u63a7\u4ef6\u7684\u65b9\u5f0f\u5176\u5b9e\u6709\u5f88\u5927\u7684\u98ce\u9669\uff0c\u56e0\u4e3awebview\u672c\u8eab\u6709\u591a\u79cd\u7f13\u5b58\u7b56\u7565\uff0c\u5982\u4e0b\uff1a<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nLOAD_CACHE_ONLY: \u4e0d\u4f7f\u7528\u7f51\u7edc\uff0c\u53ea\u8bfb\u53d6\u672c\u5730\u7f13\u5b58\u6570\u636e\nLOAD_DEFAULT: \u6839\u636ecache-control\u51b3\u5b9a\u662f\u5426\u4ece\u7f51\u7edc\u4e0a\u53d6\u6570\u636e\u3002\nLOAD_CACHE_NORMAL: API level 17\u4e2d\u5df2\u7ecf\u5e9f\u5f03, \u4eceAPI level 11\u5f00\u59cb\u4f5c\u7528\u540cLOAD_DEFAULT\u6a21\u5f0f\nLOAD_NO_CACHE: \u4e0d\u4f7f\u7528\u7f13\u5b58\uff0c\u53ea\u4ece\u7f51\u7edc\u83b7\u53d6\u6570\u636e.\nLOAD_CACHE_ELSE_NETWORK\uff0c\u53ea\u8981\u672c\u5730\u6709\uff0c\u65e0\u8bba\u662f\u5426\u8fc7\u671f\uff0c\u6216\u8005no-cache\uff0c\u90fd\u4f7f\u7528\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u3002\n<\/pre>\n<p>\u9ed8\u8ba4\u7684\u7b56\u7565\u662f\u6839\u636e\u9875\u9762\u4e2d\u7684cache-control\u5b57\u6bb5\u6765\u5224\u65ad\u662f\u8bfb\u53d6\u7f13\u5b58\u8fd8\u662f\u53bb\u7f51\u4e0a\u53d6\u6700\u65b0\u9875\u9762\u3002\u5982\u679c\u6539\u6210LOAD_CACHE_ELSE_NETWORK\uff0c\u800c\u4e1a\u52a1\u4e0a\u9700\u8981\u6bcf\u6b21\u90fd\u4eceweb\u7ad9\u70b9\u53d6\u6700\u65b0\u6570\u636e\uff0c\u90a3\u5c06\u53d1\u751f\u9519\u8bef\uff08\u56e0\u4e3awebview\u5c06\u4f18\u5148\u4ece\u672c\u5730\u7f13\u5b58\u4e2d\u53d6\uff09\u3002<br \/>\n\u6211\u9047\u5230\u8fd9\u4e2a\u95ee\u9898\u65f6\uff0c\u4e00\u5f00\u59cb\u4ee5\u4e3a\u662f\u9875\u9762\u7f13\u5b58\u8bbe\u7f6e\u95ee\u9898\uff0c\u4f46\u8ddf\u670d\u52a1\u7aef\u540c\u4e8b\u8c03\u8bd5\u540e\u53d1\u73b0\uff0c\u5e76\u4e0d\u662f\u7531Cache-Control:\u00a0no-store \u5f15\u8d77\u7684\uff0c\u53c8\u7ee7\u7eed\u67e5\uff0c\u624d\u53d1\u73b0\u8fd9\u6837\u4e00\u4e2a\u95ee\u9898\uff1a\u6211\u4eec\u6240\u91c7\u7528\u7684\u6846\u67b6\u4e2d\uff0cwebview\u5728load\u4e00\u4e2a\u9875\u9762\u65f6\uff0c\u4f1a\u5148\u5224\u65ad\u662f\u5426\u4e3apost\u8bf7\u6c42\uff0c\u82e5\u662f\u5219\u8c03\u7528postUrl\u65b9\u6cd5\uff0c\u5426\u5219\u5c31\u8c03\u7528loadUrl\u65b9\u6cd5\uff08loadUrl\u662f\u7528GET\u65b9\u5f0f\u53d1\u8bf7\u6c42\u54e6\uff01\uff01\uff09\u3002\u51fa\u95ee\u9898\u7684\u9875\u9762\u53d1\u8d77\u7684\u8bf7\u6c42\u662fpost\u8bf7\u6c42\uff0c\u800c\u6309\u4e0bandroid\u7269\u7406\u8fd4\u56de\u952e\u65f6webview\u4f1a\u8c03\u7528loadUrl\u91cd\u65b0\u53d1\u8bf7\u6c42\uff0c\u8fd9\u5c31\u5bfc\u81f4\u672c\u6765\u5e94\u8be5\u53d1POST\u8bf7\u6c42\u53bbload\u4e0a\u4e2a\u9875\u9762\u3001\u7ed3\u679c\u5374\u53d1\u4e86GET\u8bf7\u6c42\uff0c\u8fd9\u624d\u5bfc\u81f4\u62a5\u9519\u3002stackoverflow\u4e0a\u4e5f\u6709\u63d0\u5230\u7c7b\u4f3c\u7684\u60c5\u51b5\uff0c<a href=\"http:\/\/stackoverflow.com\/questions\/25664146\/android-4-4-giving-err-cache-miss-error-in-onreceivederror-for-webview-back\">\u89c1\u6b64\u94fe\u63a5<\/a>\u3002<br \/>\n\u4e3a\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u91c7\u7528\u4e86\u5728web\u7ad9\u70b9\u4e0a\u7528js\u63a7\u5236\u9875\u9762\u91cd\u5b9a\u5411\uff0c\u5177\u4f53\u65b9\u5f0f\u8ddf\u6211\u4eec\u7684\u5b9e\u73b0\u6709\u5173\uff0c\u8d34\u51fa\u6765\u610f\u4e49\u4e0d\u5927\uff0c\u5728\u6b64\u7565\u53bb\u3002\u987a\u5e26\u8bf4\u53e5\uff0cwebview\u4e2d\u6ce8\u518cjs\u51fd\u6570\u5f88\u8d39\u52b2\uff0c\u6211\u4eec\u8c03\u4e86\u597d\u51e0\u5929\uff0c\u6700\u7ec8\u9009\u5b9a\u4e86<a href=\"https:\/\/github.com\/lzyzsd\/JsBridge\">jsbridge<\/a>\uff0c\u6709\u5174\u8da3\u7684\u7ae5\u978b\u81ea\u5df1\u67e5\u5427\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u5728\u9875\u9762\uff08\u8be5\u9875\u9762\u4ec5\u4ec5\u7528\u4e8e\u91cd\u5b9a\u5411\u64cd\u4f5c\uff09\u53d1\u8d77\u67d0\u4e2a\u8bf7\u6c42\u3001\u8bf7\u6c42\u6b63\u5e38\uff0c\u4f46\u6309\u4e0b\u7269\u7406\u8fd4\u56de\u952e\u8fd4\u56de\u4e0a\u4e2a\u9875\u9762\u65f6\u9047\u5230\u8fd9\u4e2a\u95ee\u9898\uff0c\u641c\u4e86 <a href='http:\/\/prayerlaputa.com\/?p=193' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[2,9,12],"tags":[26,38],"_links":{"self":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts\/193"}],"collection":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=193"}],"version-history":[{"count":0,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts\/193\/revisions"}],"wp:attachment":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=193"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}