Javascript 错误ts2315类型';可观察的';不是泛型的
我越来越 类型“observable不是泛型” 虽然导入文件。我正在angular 7中尝试CRUD操作,并制作了两个组件,分别是add和list of employees,我创建和获取employees list的函数写在“policy.service.ts”中,我将在其中获取 类型“Observable”不是泛型 我没有犯错误,请帮助解决这个问题 这是我的package.jsonJavascript 错误ts2315类型';可观察的';不是泛型的,javascript,angular,typescript,Javascript,Angular,Typescript,我越来越 类型“observable不是泛型” 虽然导入文件。我正在angular 7中尝试CRUD操作,并制作了两个组件,分别是add和list of employees,我创建和获取employees list的函数写在“policy.service.ts”中,我将在其中获取 类型“Observable”不是泛型 我没有犯错误,请帮助解决这个问题 这是我的package.json { "name": "crudop", "version": "0.0.0", "scr
{
"name": "crudop",
"version": "0.0.0",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@angular/animations": "~7.2.0",
"@angular/common": "~7.2.0",
"@angular/compiler": "~7.2.0",
"@angular/core": "~7.2.0",
"@angular/forms": "~7.2.0",
"@angular/platform-browser": "~7.2.0",
"@angular/platform-browser-dynamic": "~7.2.0",
"@angular/router": "~7.2.0",
"angular-in-memory-web-api": "^0.8.0",
"bootstrap": "^4.3.1",
"core-js": "^2.5.4",
"rxjs": "~6.3.3",
"rxjs-compat": "^6.5.2",
"tslib": "^1.9.0",
"zone.js": "~0.8.26"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.13.0",
"@angular/cli": "~7.3.9",
"@angular/compiler-cli": "~7.2.0",
"@angular/language-service": "~7.2.0",
"@types/node": "~8.9.4",
"@types/jasmine": "~2.8.8",
"@types/jasminewd2": "~2.0.3",
"codelyzer": "~4.5.0",
"jasmine-core": "~2.99.1",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~4.0.0",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.1",
"karma-jasmine": "~1.1.2",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.4.0",
"ts-node": "~7.0.0",
"tslint": "~5.11.0",
"typescript": "~3.2.2"
}
}
policy.service.ts
导入{
注射的
}从“@angular/core”开始;
进口{
HttpClient
}来自“@angular/common/http”;
进口{
HttpHeader
}来自“@angular/common/http”;
进口{
雇员
}来自“/Iempolyee”;
进口{
可观察
}来自“rxjs/可观察”;
@注射的({
providedIn:'根'
})
出口类保单服务{
构造函数(私有http:HttpClient){}
私有url='api/员工';
getEmployees():可观察{
返回this.http.get(this.url)
}
createUseremployee(用户:IEEmployee):可观察{
常量httpOptions={
标题:新的HttpHeaders({
“内容-
键入“:”
应用程序/json'})}
返回this.http.post(this.url,user,httpOptions);
}
}
这里我得到的问题是getEmployee
和createUseremployee
函数的类型observable不是泛型的
我在想,如果我需要重新安装所有或任何技巧可以工作
您需要为Observable添加{},并且只从rxjs导入
import { Observable } from 'rxjs';
这是我的工作
import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { HttpHeaders} from '@angular/common/http';
import { Observable } from 'rxjs';
export interface IEmployee {
id:number
}
@Injectable({
providedIn: 'root'
})
export class PolicyService {
constructor(private http: HttpClient) { }
private url = 'api/employees';
getEmployees(): Observable<IEmployee[]> {
return this.http.get<IEmployee[]>(this.url)
}
createUseremployee(user: IEmployee): Observable<IEmployee> {
const httpOptions = {
headers: new HttpHeaders({
'Content-Type ': 'application / json '
})
}
return this.http.post<IEmployee>(this.url, user, httpOptions);
}
从'@angular/core'导入{Injectable};
从'@angular/common/http'导入{HttpClient};
从'@angular/common/http'导入{HttpHeaders};
从“rxjs”导入{Observable};
导出接口IEEmployee{
身份证号码
}
@注射的({
providedIn:'根'
})
出口类保单服务{
构造函数(私有http:HttpClient){}
私有url='api/员工';
getEmployees():可观察{
返回this.http.get(this.url)
}
createUseremployee(用户:IEEmployee):可观察{
常量httpOptions={
标题:新的HttpHeaders({
“内容类型”:“应用程序/json”
})
}
返回this.http.post(this.url,user,httpOptions);
}
请确保您正在从rxjs
包导入Observable
。同样值得注意的是,在这种情况下,此返回类型注释是多余的。哦,看起来您的rxjs版本与您的rxjs compatHi Aluan版本不匹配,如何匹配这两个版本?import{Observable}从“rxjs”;
而且你也不需要rxjs compat
嗨,苏拉夫,我也这样做了,但它不起作用。我确定我会上传ITI@renato,你可以看到上面有问题的一个链接是“policyservice”,点击你会得到截图。你可以试试这个:1。-删除“rxjs compat”:“^6.5.2”从package.json,2.-删除节点_模块3.-执行npm清理缓存--force,4.-npm installHi@renato,这也不起作用,谢谢帮助
import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { HttpHeaders} from '@angular/common/http';
import { Observable } from 'rxjs';
export interface IEmployee {
id:number
}
@Injectable({
providedIn: 'root'
})
export class PolicyService {
constructor(private http: HttpClient) { }
private url = 'api/employees';
getEmployees(): Observable<IEmployee[]> {
return this.http.get<IEmployee[]>(this.url)
}
createUseremployee(user: IEmployee): Observable<IEmployee> {
const httpOptions = {
headers: new HttpHeaders({
'Content-Type ': 'application / json '
})
}
return this.http.post<IEmployee>(this.url, user, httpOptions);
}