{"id":38928,"date":"2023-10-23T18:31:29","date_gmt":"2022-11-26T21:07:15","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8angular6%e6%9d%a5%e6%b5%8b%e8%af%95%e4%be%9d%e8%b5%96%e4%ba%8e%e6%a0%b9%e5%8f%82%e6%95%b0%e7%9a%84%e7%bb%84%e4%bb%b6\/"},"modified":"2024-01-15T10:04:46","modified_gmt":"2024-01-15T02:04:46","slug":"%e7%94%a8angular6%e6%9d%a5%e6%b5%8b%e8%af%95%e4%be%9d%e8%b5%96%e4%ba%8e%e6%a0%b9%e5%8f%82%e6%95%b0%e7%9a%84%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8angular6%e6%9d%a5%e6%b5%8b%e8%af%95%e4%be%9d%e8%b5%96%e4%ba%8e%e6%a0%b9%e5%8f%82%e6%95%b0%e7%9a%84%e7%bb%84%e4%bb%b6\/","title":{"rendered":"\u7528Angular6\u6765\u6d4b\u8bd5\u4f9d\u8d56\u4e8e\u6839\u53c2\u6570\u7684\u7ec4\u4ef6"},"content":{"rendered":"<h1>\u7ed3\u8bba<\/h1>\n<p>\u521b\u5efa\u4e00\u4e2a\u8fd4\u56deParamMap\u7684usevalue\u5b58\u6839\u3002<\/p>\n<h1>\u73af\u5883<\/h1>\n<pre class=\"post-pre\"><code><span class=\"gp\">&gt;<\/span> ng <span class=\"nt\">-v<\/span>\r\n<span class=\"go\">\r\n     _                      _                 ____ _     ___\r\n    \/ \\   _ __   __ _ _   _| | __ _ _ __     \/ ___| |   |_ _|\r\n   \/ \u25b3 \\ | '_ \\ \/ _` | | | | |\/ _` | '__|   | |   | |    | |\r\n  \/ ___ \\| | | | (_| | |_| | | (_| | |      | |___| |___ | |\r\n \/_\/   \\_\\_| |_|\\__, |\\__,_|_|\\__,_|_|       \\____|_____|___|\r\n                |___\/\r\n\r\n\r\nAngular CLI: 6.1.3\r\nNode: 10.8.0\r\nOS: win32 x64\r\nAngular: 6.1.2\r\n... animations, common, compiler, compiler-cli, core, forms\r\n... http, language-service, platform-browser\r\n... platform-browser-dynamic, router\r\n\r\nPackage                           Version\r\n-----------------------------------------------------------\r\n@angular-devkit\/architect         0.7.3\r\n@angular-devkit\/build-angular     0.7.3\r\n@angular-devkit\/build-optimizer   0.7.3\r\n@angular-devkit\/build-webpack     0.7.3\r\n@angular-devkit\/core              0.7.3\r\n@angular-devkit\/schematics        0.7.3\r\n@angular\/cli                      6.1.3\r\n@ngtools\/webpack                  6.1.3\r\n@schematics\/angular               0.7.3\r\n@schematics\/update                0.7.3\r\nrxjs                              6.2.2\r\ntypescript                        2.7.2\r\nwebpack                           4.9.2\r\n<\/span><\/code><\/pre>\n<h1>\u6d4b\u8bd5\u76ee\u6807\u7ec4\u4ef6<\/h1>\n<p>\u4f7f\u7528HeroDetailComponent\u7684\u516c\u5f0f\u6559\u7a0b\u3002<br \/>\n\u4f46\u662f\u8fd9\u6b21\u7684\u8bf4\u660e\u4e0d\u6d89\u53caLocation\u548cInput\u90e8\u5206\uff0c\u5df2\u5220\u9664\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;div<\/span> <span class=\"na\">*ngIf=<\/span><span class=\"s\">\"hero\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;h2&gt;<\/span>{{hero.name | uppercase}} Details<span class=\"nt\">&lt;\/h2&gt;<\/span>\r\n  <span class=\"nt\">&lt;div&gt;&lt;span&gt;<\/span>id: <span class=\"nt\">&lt;\/span&gt;<\/span>{{hero.id}}<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n  <span class=\"nt\">&lt;div&gt;<\/span>\r\n    name:{{hero.name}}\r\n  <span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Component<\/span><span class=\"p\">,<\/span> <span class=\"nx\">OnInit<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/core<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ActivatedRoute<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/router<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Hero<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/hero<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">HeroService<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/hero.service<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"p\">@<\/span><span class=\"nd\">Component<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">selector<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">app-hero-detail<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">templateUrl<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/hero-detail.component.html<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">styleUrls<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">.\/hero-detail.component.scss<\/span><span class=\"dl\">'<\/span><span class=\"p\">]<\/span>\r\n<span class=\"p\">})<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">HeroDetailComponent<\/span> <span class=\"k\">implements<\/span> <span class=\"nx\">OnInit<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nl\">hero<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Hero<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"kd\">constructor<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">route<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ActivatedRoute<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">heroService<\/span><span class=\"p\">:<\/span> <span class=\"nx\">HeroService<\/span>\r\n  <span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"nx\">ngOnInit<\/span><span class=\"p\">():<\/span> <span class=\"k\">void<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">getHero<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"nx\">getHero<\/span><span class=\"p\">():<\/span> <span class=\"k\">void<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">id<\/span> <span class=\"o\">=<\/span> <span class=\"o\">+<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">route<\/span><span class=\"p\">.<\/span><span class=\"nx\">snapshot<\/span><span class=\"p\">.<\/span><span class=\"nx\">paramMap<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">id<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">heroService<\/span><span class=\"p\">.<\/span><span class=\"nx\">getHero<\/span><span class=\"p\">(<\/span><span class=\"nx\">id<\/span><span class=\"p\">)<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nx\">subscribe<\/span><span class=\"p\">(<\/span><span class=\"nx\">hero<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">hero<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">hero<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"k\">async<\/span><span class=\"p\">,<\/span> <span class=\"nx\">ComponentFixture<\/span><span class=\"p\">,<\/span> <span class=\"nx\">TestBed<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/core\/testing<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">HeroDetailComponent<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/hero-detail.component<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"nx\">describe<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">HeroDetailComponent<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"na\">component<\/span><span class=\"p\">:<\/span> <span class=\"nx\">HeroDetailComponent<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"na\">fixture<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ComponentFixture<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">HeroDetailComponent<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"nx\">beforeEach<\/span><span class=\"p\">(<\/span><span class=\"k\">async<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">TestBed<\/span><span class=\"p\">.<\/span><span class=\"nx\">configureTestingModule<\/span><span class=\"p\">({<\/span>\r\n      <span class=\"na\">declarations<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">HeroDetailComponent<\/span><span class=\"p\">]<\/span>\r\n    <span class=\"p\">})<\/span>\r\n      <span class=\"p\">.<\/span><span class=\"nx\">compileComponents<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"p\">}));<\/span>\r\n\r\n  <span class=\"nx\">beforeEach<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">fixture<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">TestBed<\/span><span class=\"p\">.<\/span><span class=\"nx\">createComponent<\/span><span class=\"p\">(<\/span><span class=\"nx\">HeroDetailComponent<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nx\">component<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">fixture<\/span><span class=\"p\">.<\/span><span class=\"nx\">componentInstance<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nx\">fixture<\/span><span class=\"p\">.<\/span><span class=\"nx\">detectChanges<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"p\">});<\/span>\r\n\r\n  <span class=\"nx\">it<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">should create<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">component<\/span><span class=\"p\">).<\/span><span class=\"nx\">toBeTruthy<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"p\">});<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<h1>\u524d\u4fee\u6b63<\/h1>\n<p>\u7531\u4e8ehero-detail.component.spec.ts\u4fdd\u6301\u7740\u81ea\u52a8\u751f\u6210\u65f6\u7684\u539f\u59cb\u72b6\u6001\uff0c\u6240\u4ee5\u6d4b\u8bd5\u5fc5\u7136\u5931\u8d25\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">&gt;<\/span>ng <span class=\"nb\">test<\/span>\r\n<span class=\"go\">\r\n~~~~~(\u4e2d\u7565)~~~~~\r\n\r\nChrome 68.0.3440 (Windows 10 0.0.0) HeroDetailComponent should create FAILED\r\n<\/span><span class=\"gp\">        Error: StaticInjectorError(DynamicTestModule)[HeroDetailComponent -&gt;<\/span> ActivatedRoute]:\r\n<span class=\"gp\">          StaticInjectorError(Platform: core)[HeroDetailComponent -&gt;<\/span> ActivatedRoute]:\r\n<span class=\"go\">            NullInjectorError: No provider for ActivatedRoute!\r\n            at NullInjector.get (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:1359:19)\r\n            at resolveToken (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:1597:24)\r\n            at tryResolveToken (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:1541:16)\r\n            at StaticInjector.get (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:1438:20)\r\n            at resolveToken (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:1597:24)\r\n            at tryResolveToken (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:1541:16)\r\n            at StaticInjector.get (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:1438:20)\r\n            at resolveNgModuleDep (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:8673:29)\r\n            at NgModuleRef_.get (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:9361:16)\r\n            at resolveDep (webpack:\/\/\/.\/node_modules\/@angular\/core\/fesm5\/core.js?:9726:45)\r\n        Expected undefined to be truthy.\r\n            at UserContext.eval (webpack:\/\/\/.\/src\/app\/hero-detail\/hero-detail.component.spec.ts?:20:27)\r\n            at ZoneDelegate.invoke (webpack:\/\/\/.\/node_modules\/zone.js\/dist\/zone.js?:387:26)\r\n            at ProxyZoneSpec.onInvoke (webpack:\/\/\/.\/node_modules\/zone.js\/dist\/zone-testing.js?:287:39)\r\n<\/span><\/code><\/pre>\n<h1>\u4fee\u6539\u90e8\u5206<\/h1>\n<pre class=\"post-pre\"><code><span class=\"p\">import { async, ComponentFixture, TestBed } from '@angular\/core\/testing';\r\n<\/span><span class=\"gi\">+import { ActivatedRoute, convertToParamMap } from '@angular\/router';\r\n<\/span>\r\nimport { HeroDetailComponent } from '.\/hero-detail.component';\r\n\r\ndescribe('HeroDetailComponent', () =&gt; {\r\n  let component: HeroDetailComponent;\r\n  let fixture: ComponentFixture&lt;HeroDetailComponent&gt;;\r\n\r\n  beforeEach(async(() =&gt; {\r\n    TestBed.configureTestingModule({\r\n<span class=\"gd\">-      declarations: [HeroDetailComponent]\r\n<\/span><span class=\"gi\">+      declarations: [HeroDetailComponent],\r\n+      providers: [{\r\n+        provide: ActivatedRoute,\r\n+        useValue: {\r\n+          snapshot: { paramMap: convertToParamMap({ id: 11 }) }\r\n+        }\r\n<\/span>      }]\r\n    })\r\n      .compileComponents();\r\n  }));\r\n\r\n  beforeEach(() =&gt; {\r\n    fixture = TestBed.createComponent(HeroDetailComponent);\r\n    component = fixture.componentInstance;\r\n    fixture.detectChanges();\r\n  });\r\n\r\n  it('should create', () =&gt; {\r\n    expect(component).toBeTruthy();\r\n  });\r\n<span class=\"err\">});<\/span>\r\n<\/code><\/pre>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u751f\u6210 ActivatedRoute \u7684\u6869<\/ol>\n<\/li>\n<\/ol>\n<p>\u4f7f\u7528 useValue \u5c5e\u6027\u8bbe\u7f6e snapshot \u7684\u8fd4\u56de\u503c<\/p>\n<p>\u4f7f\u7528 convertToParamMap \u65b9\u6cd5\u521b\u5efa ParamMap \u5bf9\u8c61\u4f1a\u5f88\u65b9\u4fbf<\/p>\n<h1>\u4fee\u6b63\u4e4b\u540e<\/h1>\n<p>\u7531\u4e8e\u8fd9\u662f\u4e00\u4e2a\u5df2\u6709\u7684\u9879\u76ee\u4e2d\u6dfb\u52a0\u7684\u7ec4\u4ef6\uff0c\u8bf7\u8c05\u89e3\u6d4b\u8bd5\u6570\u91cf\u7684\u4e0d\u540c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">&gt;<\/span>ng <span class=\"nb\">test<\/span>\r\n<span class=\"go\">\r\n~~~~~(\u4e2d\u7565)~~~~~\r\n\r\nChrome 68.0.3440 (Windows 10 0.0.0): Executed 11 of 11 SUCCESS (0.403 secs \/ 0.374 secs)\r\nTOTAL: 11 SUCCESS\r\nTOTAL: 11 SUCCESS\r\n<\/span><\/code><\/pre>\n<h1>\u8bf7\u63d0\u4f9b\u66f4\u591a\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\u3002<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Angular &#8211; Testing<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">angular &#8211; How to unit test a component that depends on parameters from ActivatedRoute?<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u7ed3\u8bba \u521b\u5efa\u4e00\u4e2a\u8fd4\u56deParamMap\u7684usevalue\u5b58\u6839\u3002 \u73af\u5883 &gt; ng -v _ _ ____ _  [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38928","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>\u7528Angular6\u6765\u6d4b\u8bd5\u4f9d\u8d56\u4e8e\u6839\u53c2\u6570\u7684\u7ec4\u4ef6 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, 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