我正在尝试构建我的项目，但收到此错误
处理请求时发生未处理的异常。 InvalidOperationException：SPA 默认页面中间件无法返回默认页面"/index.html"，因为它未找到，并且没有其他中间件处理请求。 Microsoft.AspNetCore.SpaServices.SpaDefaultPageMiddleware+<>c__DisplayClass0_0.b__1(HttpContext context， Func next(
我已经在各种网站上寻找解决方案，但我没有找到任何东西 我发现问题可能是
//angular.json ... "输出路径"： "dist" 启动.cs ... 矿泉。Options.SourcePath = "ClientApp">
但它不起作用
这是我的代码，如果有人可以帮助我
启动.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.AspNetCore.SpaServices.AngularCli;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
namespace MYAPP.WebAPI
{
public class Startup
{
private const string corsName = "AllowOrigin";
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddCors(options =>
{
options.AddPolicy(corsName, builder =>
{
builder.AllowAnyOrigin()
.AllowAnyHeader()
.AllowAnyMethod();
});
});
services.AddMvc()
.SetCompatibilityVersion(CompatibilityVersion.Version_2_2)
.AddJsonOptions(options =>
{
options.SerializerSettings.DateFormatString = "yyyy'-'MM'-'dd'T'HH':'mm'Z'";
});
services.AddSpaStaticFiles(configuration =>
{
configuration.RootPath = "ClientApp";
});
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseCors(corsName);
}
else
{
app.UseExceptionHandler("/Error");
// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseSpaStaticFiles();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller}/{action=Index}/{id?}");
});
app.UseSpa(spa =>
{
// To learn more about options for serving an Angular SPA from ASP.NET Core,
// see https://go.microsoft.com/fwlink/?linkid=864501
spa.Options.SourcePath = "ClientApp";
// **************************************
// questa parte serve solo se si decide di creare un progetto unico WebAPI/Angular
//if (env.IsDevelopment())
//{
// spa.UseAngularCliServer(npmScript: "start");
//}
//**************************************
});
}
}
}
Angular.json
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"MYAPP": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"prefix": "app",
"schematics": {
"@schematics/angular:component": {
"styleext": "scss"
}
},
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"outputPath": "dist",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.app.json",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/styles.scss"
],
"scripts": [],
"showCircularDependencies": false
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"baseHref": "/MYAPP/",
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"budgets": [
{
"type": "initial",
"maximumWarning": "6mb",
"maximumError": "7mb"
}
]
},
"ec": {
"sourceMap": true,
"extractCss": true
},
"hmr": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.hmr.ts"
}
]
},
"prod-hmr": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod-hmr.ts"
}
],
"baseHref": "/MYAPP/",
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"budgets": [
{
"type": "initial",
"maximumWarning": "6mb",
"maximumError": "7mb"
}
]
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "MYAPP:build"
},
"configurations": {
"production": {
"browserTarget": "MYAPP:build:production"
},
"hmr": {
"hmr": true,
"browserTarget": "MYAPP:build:hmr"
},
"ec": {
"browserTarget": "MYAPP:build:ec"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "MYAPP:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.spec.json",
"karmaConfig": "src/karma.conf.js",
"styles": [
"src/styles.scss"
],
"scripts": [],
"assets": [
"src/favicon.ico",
"src/assets"
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
},
"MYAPP-e2e": {
"root": "e2e/",
"projectType": "application",
"prefix": "",
"architect": {
"e2e": {
"builder": "@angular-devkit/build-angular:protractor",
"options": {
"protractorConfig": "e2e/protractor.conf.js",
"devServerTarget": "MYAPP:serve"
},
"configurations": {
"production": {
"devServerTarget": "MYAPP:serve:production"
}
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": "e2e/tsconfig.e2e.json",
"exclude": [
"**/node_modules/**"
]
}
}
}
}
},
"defaultProject": "MYAPP"
}
这困扰了我几个小时，我终于注意到我的应用程序中有一个愚蠢的错别字。就我而言，该错误与服务器端配置(如spa.Options.SourcePath = "ClientApp"或ClientAppdist
(无关。这是由于我的 Angular 应用程序用于调用控制器方法的 API URL 中的尾部斜杠。
而不是
http://localhost:81 // Correct
我有
http://localhost:81/ // Trailing slash is not needed.
如果您仔细查看浏览器控制台中的错误，您可以看到带有两个连续斜杠的路径。