当我在代码中尝试使用Angular Material时,我遇到了以下错误.
zone.js:101 GET http://localhost:3000/traceur 404 (Not Found)scheduleTask @ zone.js:101ZoneDelegate.scheduleTask @ zone.js:345Zone.scheduleMacroTask @ zone.js:282(anonymous function) @ zone.js:122send @ VM437:3fetchTextFromURL @ system.src.js:1156(anonymous function) @ system.src.js:1739ZoneAwarePromise @ zone.js:607(anonymous function) @ system.src.js:1738(anonymous function) @ system.src.js:2764(anonymous function) @ system.src.js:3338(anonymous function) @ system.src.js:3605(anonymous function) @ system.src.js:3990(anonymous function) @ system.src.js:4453(anonymous function) @ system.src.js:4705(anonymous function) @ system.src.js:408ZoneDelegate.invoke @ zone.js:332Zone.run @ zone.js:225(anonymous function) @ zone.js:591ZoneDelegate.invokeTask @ zone.js:365Zone.runTask @ zone.js:265drainMicroTaskQueue @ zone.js:497ZoneTask.invoke @ zone.js:437
login:15 Error: Error: XHR error (404 Not Found) loading http://localhost:3000/traceur
at XMLHttpRequest.wrapFn [as _onreadystatechange] (http://localhost:3000/node_modules/zone.js/dist/zone.js:794:30)
at ZoneDelegate.invokeTask (http://localhost:3000/node_modules/zone.js/dist/zone.js:365:38)
at Zone.runTask (http://localhost:3000/node_modules/zone.js/dist/zone.js:265:48)
at XMLHttpRequest.ZoneTask.invoke (http://localhost:3000/node_modules/zone.js/dist/zone.js:433:34)
Error loading http://localhost:3000/traceur
Error loading http://localhost:3000/node_modules/@angular2-material/button/button.js as "@angular2-material/button" from http://localhost:3000/app/assets/js/app.module.js(anonymous function) @ login:15ZoneDelegate.invoke @ zone.js:332Zone.run @ zone.js:225(anonymous function) @ zone.js:591ZoneDelegate.invokeTask @ zone.js:365Zone.runTask @ zone.js:265drainMicroTaskQueue @ zone.js:497ZoneTask.invoke @ zone.js:437
以下是代码：
app.component.ts：
import { Component,ViewEncapsulation } from '@angular/core';
import { MdButton } from '@angular2-material/button';
@Component({
selector: 'myApp',templateUrl: './app/app.html',styleUrls: ['./app/app.css'],encapsulation: ViewEncapsulation.None
})
export class AppComponent {
}
app.module.ts：
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { HttpModule } from '@angular/http';
import { MdButtonModule } from '@angular2-material/button';
import { routing,appRoutingProviders } from './app.routing';
import { AppComponent } from './app.component';
import { LoginModule } from './login/login.module';
import { HomeModule } from './home/home.module';
import { ItemsModule } from './items/items.module';
import { MoviesModule } from './movies/movies.module';
@NgModule({
imports: [ BrowserModule,FormsModule,HttpModule,MdButtonModule,routing,LoginModule,HomeModule,ItemsModule,MoviesModule ],declarations: [ AppComponent ],providers: [ appRoutingProviders ],bootstrap: [ AppComponent ],})
export class AppModule {}
app.routing.ts：
import { ModuleWithProviders } from '@angular/core';
import { Routes,RouterModule } from '@angular/router';
const appRoutes: Routes = [];
export const appRoutingProviders: any[] = [];
export const routing: ModuleWithProviders = RouterModule.forRoot(appRoutes);
main.ts：
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import { AppModule } from './app.module';
const platform = platformBrowserDynamic();
platform.bootstrapModule(AppModule);
system.config.js：
/**
* System configuration for Angular 2 samples
* Adjust as necessary for your application needs.
*/
(function (global) {
System.config({
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},// map tells the System loader where to look for things
map: {
// our app is within the app folder
app: 'app',// angular bundles
'@angular/core': 'npm:@angular/core/bundles/core.umd.js','@angular/common': 'npm:@angular/common/bundles/common.umd.js','@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js','@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js','@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js','@angular/http': 'npm:@angular/http/bundles/http.umd.js','@angular/router': 'npm:@angular/router/bundles/router.umd.js','@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js','@angular2-material': 'npm:@angular2-material',// other libraries
'rxjs': 'npm:rxjs','angular2-in-memory-web-api': 'npm:angular2-in-memory-web-api',},// packages tells the System loader how to load when no filename and/or no extension
packages: {
app: {
main: './main.js',defaultExtension: 'js'
},rxjs: {
main: 'main.js','angular2-in-memory-web-api': {
main: './index.js','@angular2-material/core': {
main: 'core.js','@angular2-material/button': {
main: 'button.js','@angular2-material/card': {
main: 'card.js',defaultExtension: 'js'
}
}
});
})(this);
更新2.0.0-alpha.9 cobalt-kraken(2016-09-26)
Angular Material has changed from @angular2-material/… packages to a
single package under @angular/material
所以您的配置可能如下所示：
(function (global) {
System.config({
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},// map tells the System loader where to look for things
map: {
// our app is within the app folder
app: 'app',// angular bundles
'@angular/core': 'npm:@angular/core/bundles/core.umd.js','@angular/material': 'npm:@angular/material/bundles/material.umd.js',<== this line
...
},...
});
})(this);
并使用它
import { MaterialModule } from '@angular/material';
@NgModule({
imports: [ BrowserModule,MaterialModule ],bootstrap: [ AppComponent ]
})
export class AppModule { }
旧版
从angular2-material alpha 8开始,您需要使用以下配置：
materialPackages.forEach(name => {
packages[`@angular2-material/${name}`] = {
format: 'cjs',main: `${name}.umd.js`
};
});
另请参见更改日志
> https://github.com/angular/material2/blob/master/CHANGELOG.md
all: we’ve updated our packaging to match angular/angular’s packaging.
If you’re using SystemJS in your project,you will probably want to
switch to using our UMD bundles
所以你必须改变你的
system.config.js
packages: {
...
'@angular2-material/core': {
format: 'cjs',main: 'core.umd.js'
},'@angular2-material/button': {
format: 'cjs',main: 'button.umd.js'
},'@angular2-material/card': {
format: 'cjs',main: 'card.umd.js'
},...
