Angular Get请求在组件请求订阅服务器时返回订阅服务器

get请求自身工作，如果我打印请求的结果，它将返回json，但当我访问组件中的方法时，该方法将重新运行订阅，并且我设置的变量保持未定义

身份验证服务：

getUserData() { 
    return this.http.get(`${this.env.API_URL}/users/firebase/${JSON.parse(localStorage.getItem('user')).uid}`).subscribe({
      next: ( data:any ) => {
        console.log(data.data.person)
      },
      error: error => {
        this.alert.showAlert("Error!", error.message)
        console.error('There was an error!', error)
      }
    })
  }

user:any

  constructor(public auth: AuthService, private router: Router, private alert: Ion_Alert) {
    if(this.auth.isLoggedIn) {
      this.user = this.auth.getUserData()
      console.log(this.user)
    } else {
      this.alert.showAlert('Error!', "You're not logged in or you haven't verified your mail")
    }
  }

帐户组件：

getUserData() { 
    return this.http.get(`${this.env.API_URL}/users/firebase/${JSON.parse(localStorage.getItem('user')).uid}`).subscribe({
      next: ( data:any ) => {
        console.log(data.data.person)
      },
      error: error => {
        this.alert.showAlert("Error!", error.message)
        console.error('There was an error!', error)
      }
    })
  }

user:any

  constructor(public auth: AuthService, private router: Router, private alert: Ion_Alert) {
    if(this.auth.isLoggedIn) {
      this.user = this.auth.getUserData()
      console.log(this.user)
    } else {
      this.alert.showAlert('Error!', "You're not logged in or you haven't verified your mail")
    }
  }

返回

---

只有在调用调用服务的方法时，才应

subscribe

：

this.auth.getUserData().subscribe({
      ( data:any ) => {
       this.user = data.data.person // <-- I think you mean this
        console.log(data.data.person)
      },
      error: error => {
        this.alert.showAlert("Error!", error.message)
        console.error('There was an error!', error)
      }
    })
  }

身份验证服务：

getUserData() { 
    return this.http.get(`${this.env.API_URL}/users/firebase/${JSON.parse(localStorage.getItem('user')).uid}`)
    }

以及，在组件的

构造函数中（注入服务的位置）：

this.auth.getUserData（）.subscribe({
（数据：任何）=>{
this.user=data.data.person//{
this.alert.showAlert（“Error！”，Error.message）
console.error（'发生错误！'，error）
}
})
}