{"id":135001,"date":"2024-10-31T06:17:16","date_gmt":"2024-10-30T22:17:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/135001\/"},"modified":"2024-10-31T06:17:17","modified_gmt":"2024-10-30T22:17:17","slug":"rxjava%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e5%bc%8f%ef%bc%88rxjava%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/135001\/","title":{"rendered":"RxJava\u512a\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u5be6\u73fe\u65b9\u5f0f\uff08rxjava\u64cd\u4f5c\u6578\u64da\u5eab\uff09"},"content":{"rendered":"<h1 id=\"rxjava%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e5%bc%8f%ef%bc%88rxjava%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%89-znaqNndjWt\">RxJava\u512a\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u5be6\u73fe\u65b9\u5f0f\uff08rxjava\u64cd\u4f5c\u6578\u64da\u5eab\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u9ad4\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u64cd\u4f5c\u662f\u61c9\u7528\u7a0b\u5f0f\u6027\u80fd\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002\u96a8\u8457\u61c9\u7528\u7a0b\u5f0f\u9700\u6c42\u7684\u589e\u9577\uff0c\u958b\u767c\u8005\u9700\u8981\u5c0b\u627e\u66f4\u9ad8\u6548\u7684\u65b9\u5f0f\u4f86\u8655\u7406\u6578\u64da\u5eab\u64cd\u4f5c\u3002RxJava\u4f5c\u70ba\u4e00\u7a2e\u53cd\u61c9\u5f0f\u7de8\u7a0b\u7684\u5eab\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u512a\u96c5\u7684\u65b9\u5f0f\u4f86\u8655\u7406\u7570\u6b65\u6578\u64da\u6d41\uff0c\u4e26\u4e14\u80fd\u5920\u6709\u6548\u5730\u512a\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528RxJava\u4f86\u512a\u5316\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u73fe\u7684\u7bc4\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afrxjava%ef%bc%9f-znaqNndjWt\">\u4ec0\u9ebc\u662fRxJava\uff1f<\/h2>\n<p>RxJava\u662f\u4e00\u500b\u57fa\u65bc\u89c0\u5bdf\u8005\u6a21\u5f0f\u7684\u5eab\uff0c\u65e8\u5728\u7c21\u5316\u7570\u6b65\u7de8\u7a0b\u3002\u5b83\u5141\u8a31\u958b\u767c\u8005\u4ee5\u8072\u660e\u5f0f\u7684\u65b9\u5f0f\u8655\u7406\u6578\u64da\u6d41\uff0c\u4e26\u63d0\u4f9b\u4e86\u8c50\u5bcc\u7684\u64cd\u4f5c\u7b26\u4f86\u8f49\u63db\u3001\u904e\u6ffe\u548c\u7d44\u5408\u6578\u64da\u3002\u9019\u4f7f\u5f97RxJava\u7279\u5225\u9069\u5408\u7528\u65bc\u8655\u7406\u9700\u8981\u591a\u500b\u7570\u6b65\u64cd\u4f5c\u7684\u5834\u666f\uff0c\u4f8b\u5982\u6578\u64da\u5eab\u67e5\u8a62\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e4%bd%bf%e7%94%a8rxjava%e4%be%86%e5%84%aa%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%ef%bc%9f-znaqNndjWt\">\u70ba\u4ec0\u9ebc\u4f7f\u7528RxJava\u4f86\u512a\u5316\u6578\u64da\u5eab\u64cd\u4f5c\uff1f<\/h2>\n<ul>\n<li><strong>\u975e\u963b\u585e\u6027\uff1a<\/strong>RxJava\u7684\u975e\u963b\u585e\u7279\u6027\u4f7f\u5f97\u61c9\u7528\u7a0b\u5f0f\u5728\u7b49\u5f85\u6578\u64da\u5eab\u64cd\u4f5c\u5b8c\u6210\u6642\u4e0d\u6703\u88ab\u963b\u585e\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u53ef\u8b80\u6027\uff1a<\/strong>\u4f7f\u7528RxJava\u53ef\u4ee5\u4f7f\u4ee3\u78bc\u66f4\u52a0\u7c21\u6f54\u548c\u6613\u65bc\u7406\u89e3\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u591a\u500b\u7570\u6b65\u64cd\u4f5c\u6642\u3002<\/li>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>RxJava\u63d0\u4f9b\u4e86\u7d71\u4e00\u7684\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u4f7f\u5f97\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u51fa\u73fe\u932f\u8aa4\u6642\u80fd\u5920\u66f4\u8f15\u9b06\u5730\u9032\u884c\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"rxjava%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%af%a6%e7%8f%be-znaqNndjWt\">RxJava\u64cd\u4f5c\u6578\u64da\u5eab\u7684\u57fa\u672c\u5be6\u73fe<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528RxJava\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u57fa\u672c\u7bc4\u4f8b\u3002\u5047\u8a2d\u6211\u5011\u4f7f\u7528Room\u4f5c\u70ba\u6578\u64da\u5eab\uff0c\u4e26\u5e0c\u671b\u5f9e\u6578\u64da\u5eab\u4e2d\u7372\u53d6\u7528\u6236\u5217\u8868\u3002<\/p>\n<pre><code>import io.reactivex.Observable;\nimport io.reactivex.schedulers.Schedulers;\n\npublic class UserRepository {\n    private UserDao userDao;\n\n    public UserRepository(UserDao userDao) {\n        this.userDao = userDao;\n    }\n\n    public Observable&lt;List&gt; getAllUsers() {\n        return Observable.fromCallable(() -&gt; userDao.getAllUsers())\n                .subscribeOn(Schedulers.io())\n                .observeOn(AndroidSchedulers.mainThread());\n    }\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70baUserRepository\u7684\u985e\uff0c\u4e26\u5728\u5176\u4e2d\u5b9a\u7fa9\u4e86\u4e00\u500b\u65b9\u6cd5getAllUsers\u3002\u9019\u500b\u65b9\u6cd5\u4f7f\u7528\u4e86Observable.fromCallable\u4f86\u5275\u5efa\u4e00\u500b\u53ef\u89c0\u5bdf\u7684\u6578\u64da\u6d41\uff0c\u4e26\u5728IO\u7dda\u7a0b\u4e0a\u57f7\u884c\u6578\u64da\u5eab\u67e5\u8a62\uff0c\u6700\u5f8c\u5c07\u7d50\u679c\u767c\u9001\u5230\u4e3b\u7dda\u7a0b\u9032\u884c\u66f4\u65b0\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-znaqNndjWt\">\u932f\u8aa4\u8655\u7406<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\uff0c\u932f\u8aa4\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002RxJava\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u5f0f\u4f86\u8655\u7406\u932f\u8aa4\uff0c\u4f8b\u5982\u4f7f\u7528onErrorReturn\u6216onErrorResumeNext\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5728\u4e0a\u9762\u7684\u7bc4\u4f8b\u4e2d\u6dfb\u52a0\u932f\u8aa4\u8655\u7406\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>public Observable&lt;List&gt; getAllUsers() {\n    return Observable.fromCallable(() -&gt; userDao.getAllUsers())\n            .subscribeOn(Schedulers.io())\n            .observeOn(AndroidSchedulers.mainThread())\n            .onErrorReturn(throwable -&gt; {\n                \/\/ \u932f\u8aa4\u8655\u7406\u908f\u8f2f\n                return new ArrayList();\n            });\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u5982\u679c\u5728\u7372\u53d6\u7528\u6236\u5217\u8868\u6642\u767c\u751f\u932f\u8aa4\uff0c\u6211\u5011\u5c07\u8fd4\u56de\u4e00\u500b\u7a7a\u7684\u7528\u6236\u5217\u8868\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u61c9\u7528\u7a0b\u5f0f\u5d29\u6f70\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-znaqNndjWt\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528RxJava\u4f86\u512a\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\uff0c\u9084\u80fd\u4f7f\u4ee3\u78bc\u66f4\u52a0\u7c21\u6f54\u548c\u6613\u65bc\u7dad\u8b77\u3002\u901a\u904e\u975e\u963b\u585e\u7684\u65b9\u5f0f\u8655\u7406\u6578\u64da\u6d41\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u7570\u6b65\u64cd\u4f5c\uff0c\u4e26\u4e14\u80fd\u5920\u66f4\u597d\u5730\u8655\u7406\u932f\u8aa4\u3002\u96a8\u8457\u53cd\u61c9\u5f0f\u7de8\u7a0b\u7684\u8208\u8d77\uff0cRxJava\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5f0f\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22RxJava\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u7684\u512a\u5316\u5be6\u73fe\u65b9\u5f0f\uff0c\u63d0\u9ad8\u6027\u80fd\u8207\u97ff\u61c9\u901f\u5ea6\uff0c\u7c21\u5316\u7570\u6b65\u8655\u7406\u6d41\u7a0b\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-135001","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=135001"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135001\/revisions"}],"predecessor-version":[{"id":135002,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/135001\/revisions\/135002"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=135001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=135001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=135001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}