{"id":39090,"date":"2023-04-13T07:39:44","date_gmt":"2023-09-05T07:42:11","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/angular%ef%bc%9ahttpclient-%e8%bf%99%e4%b8%aa%e7%a4%ba%e4%be%8b%ef%bc%88%e5%90%8c%e6%ad%a5%e7%89%88%e3%80%81%e5%bc%82%e6%ad%a5%e7%89%88%ef%bc%89\/"},"modified":"2024-04-29T23:17:47","modified_gmt":"2024-04-29T15:17:47","slug":"angular%ef%bc%9ahttpclient-%e8%bf%99%e4%b8%aa%e7%a4%ba%e4%be%8b%ef%bc%88%e5%90%8c%e6%ad%a5%e7%89%88%e3%80%81%e5%bc%82%e6%ad%a5%e7%89%88%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/angular%ef%bc%9ahttpclient-%e8%bf%99%e4%b8%aa%e7%a4%ba%e4%be%8b%ef%bc%88%e5%90%8c%e6%ad%a5%e7%89%88%e3%80%81%e5%bc%82%e6%ad%a5%e7%89%88%ef%bc%89\/","title":{"rendered":"Angular\uff1aHttpClient \u8fd9\u4e2a\u793a\u4f8b\uff08\u540c\u6b65\u7248\u3001\u5f02\u6b65\u7248\uff09"},"content":{"rendered":"<h2>\u5f15\u8a00<\/h2>\n<ul class=\"post-ul\">\u81ea\u5206\u306e\u52c9\u5f37\u30e1\u30e2\u3001\u3054\u53c2\u8003\u307e\u3067<\/ul>\n<h2>Angular\u7684HttpClient\uff08AJAX\uff09\u793a\u4f8b\uff08\u5f02\u6b65\u7248\uff09<\/h2>\n<p>\u5728app.module.ts\u4e2d\u5bfc\u5165HttpClientModule\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">HttpClientModule<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/common\/http<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">@<\/span><span class=\"nd\">NgModule<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"p\">......<\/span>\r\n  <span class=\"na\">imports<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"nx\">HttpClientModule<\/span>\r\n  <span class=\"p\">]<\/span>\r\n  <span class=\"na\">bootstrap<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">AppComponent<\/span><span class=\"p\">]<\/span>\r\n  <span class=\"p\">......<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u4f7f\u7528HttpClient<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">HttpClient<\/span><span class=\"p\">,<\/span> <span class=\"nx\">HttpHeaders<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/common\/http<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"nf\">constructor<\/span><span class=\"p\">(<\/span><span class=\"k\">private<\/span> <span class=\"nx\">http<\/span><span class=\"p\">:<\/span> <span class=\"nx\">HttpClient<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"p\">}<\/span>\r\n\r\n<span class=\"nf\">onSearch <\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"nx\">httpOptions<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span> <span class=\"na\">headers<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">HttpHeaders<\/span><span class=\"p\">({<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">application\/json<\/span><span class=\"dl\">'<\/span>  <span class=\"p\">})<\/span> <span class=\"p\">};<\/span>\r\n\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">1) ajax start...<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nf\">get<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http:\/\/localhost\/Mock\/receiptMap.json<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">httpOptions<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">.<\/span><span class=\"nf\">subscribe<\/span><span class=\"p\">(<\/span><span class=\"nx\">response<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">response<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">2) ajax over...<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">});<\/span>    \r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">3) search over...<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u7d50\u679c\u306f\u4ee5\u4e0b\u3067\u3042\u308b<\/span>\r\n<span class=\"mi\">1<\/span><span class=\"p\">)<\/span> <span class=\"nx\">ajax<\/span> <span class=\"nx\">start<\/span><span class=\"p\">...<\/span>\r\n<span class=\"mi\">3<\/span><span class=\"p\">)<\/span> <span class=\"nx\">search<\/span> <span class=\"nx\">over<\/span><span class=\"p\">...<\/span>\r\n<span class=\"mi\">2<\/span><span class=\"p\">)<\/span> <span class=\"nx\">ajax<\/span> <span class=\"nx\">over<\/span><span class=\"p\">...<\/span>\r\n<\/code><\/pre>\n<h2>Angular\u7684HttpClient(AJAX)\u793a\u4f8b\uff08\u540c\u6b65\u7248\u672c\uff09\u3002<\/h2>\n<p>\u4f7f\u7528HttpClient<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">lastValueFrom<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">rxjs<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">async<\/span> <span class=\"nf\">onSearch <\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"nx\">httpOptions<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span> <span class=\"na\">headers<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">HttpHeaders<\/span><span class=\"p\">({<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Content-Type<\/span><span class=\"dl\">'<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">application\/json<\/span><span class=\"dl\">'<\/span> <span class=\"p\">})<\/span> <span class=\"p\">};<\/span>\r\n\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">1) ajax start...<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"nx\">f<\/span> <span class=\"o\">=<\/span> <span class=\"k\">await<\/span> <span class=\"nf\">lastValueFrom<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">http<\/span><span class=\"p\">.<\/span><span class=\"nf\">get<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">http:\/\/localhost\/AiReceiptApiMock\/receiptMap.json<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">httpOptions<\/span><span class=\"p\">));<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">f<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">2) ajax over...<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">3) search over...<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u7d50\u679c\u306f\u4ee5\u4e0b\u3067\u3042\u308b<\/span>\r\n<span class=\"mi\">1<\/span><span class=\"p\">)<\/span> <span class=\"nx\">ajax<\/span> <span class=\"nx\">start<\/span><span class=\"p\">...<\/span>\r\n<span class=\"mi\">2<\/span><span class=\"p\">)<\/span> <span class=\"nx\">ajax<\/span> <span class=\"nx\">over<\/span><span class=\"p\">...<\/span>\r\n<span class=\"mi\">3<\/span><span class=\"p\">)<\/span> <span class=\"nx\">search<\/span> <span class=\"nx\">over<\/span><span class=\"p\">...<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u81ea\u5206\u306e\u52c9\u5f37\u30e1\u30e2\u3001\u3054\u53c2\u8003\u307e\u3067 Angular\u7684HttpClient\uff08AJAX\uff09\u793a\u4f8b\uff08\u5f02\u6b65\u7248\uff09 \u5728app.m [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39090","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Angular\uff1aHttpClient \u8fd9\u4e2a\u793a\u4f8b\uff08\u540c\u6b65\u7248\u3001\u5f02\u6b65\u7248\uff09 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" 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