Angular 如何将数据从角度模型检索到控制器中

饮用水.component.ts

    import { Component } from 'angular/core';
    import { userInfoService } from 'some/path';

    @Component({
    selector: 'drink-water';
    templateUrl: './drink-water.component.html'
    })

    export class DrinkWaterComponent implements OnInIt {
    ...
    ...
    userInfo: userInfoModel;

    constructor (public userInfoService : UserInfoService) {}

    ngOnInit() {

    this.readUsrInfo();

    }

    readUsrInfo() {
    console.log('user info is', this.userInfoService)

   //need gender here ..to do some logic
   //need gender here..

        }

import { Injectable } from '@angular/core';
import { UserInfoModel } from 'some/path';

@Injectable({
providedIn: 'root'
})

export class UserInfoService {
public userInfo: UserInfoModel;

constructor() {}
}

export class UserInfoModel {
gender: string;
userName: string;
hasKids: boolean;
constructor(data: UserInfoModel) {
this.userName = date.userName;
this.gender = data.gender;
}
}

用户信息服务.ts

    import { Component } from 'angular/core';
    import { userInfoService } from 'some/path';

    @Component({
    selector: 'drink-water';
    templateUrl: './drink-water.component.html'
    })

    export class DrinkWaterComponent implements OnInIt {
    ...
    ...
    userInfo: userInfoModel;

    constructor (public userInfoService : UserInfoService) {}

    ngOnInit() {

    this.readUsrInfo();

    }

    readUsrInfo() {
    console.log('user info is', this.userInfoService)

   //need gender here ..to do some logic
   //need gender here..

        }

import { Injectable } from '@angular/core';
import { UserInfoModel } from 'some/path';

@Injectable({
providedIn: 'root'
})

export class UserInfoService {
public userInfo: UserInfoModel;

constructor() {}
}

export class UserInfoModel {
gender: string;
userName: string;
hasKids: boolean;
constructor(data: UserInfoModel) {
this.userName = date.userName;
this.gender = data.gender;
}
}

用户信息.model.ts

    import { Component } from 'angular/core';
    import { userInfoService } from 'some/path';

    @Component({
    selector: 'drink-water';
    templateUrl: './drink-water.component.html'
    })

    export class DrinkWaterComponent implements OnInIt {
    ...
    ...
    userInfo: userInfoModel;

    constructor (public userInfoService : UserInfoService) {}

    ngOnInit() {

    this.readUsrInfo();

    }

    readUsrInfo() {
    console.log('user info is', this.userInfoService)

   //need gender here ..to do some logic
   //need gender here..

        }

import { Injectable } from '@angular/core';
import { UserInfoModel } from 'some/path';

@Injectable({
providedIn: 'root'
})

export class UserInfoService {
public userInfo: UserInfoModel;

constructor() {}
}

export class UserInfoModel {
gender: string;
userName: string;
hasKids: boolean;
constructor(data: UserInfoModel) {
this.userName = date.userName;
this.gender = data.gender;
}
}

饮用水组件的控制台输出->readUsrInfo（Console.log（）） 请将>替换为向下实心箭头作为json结构。我无法格式化它

问题

如果我试图从控制器中仅控制台this.userInfoService，则会得到上面的控制台输出。如何在readUsrInfo方法中访问名称和性别？this.userInfoService.gender返回未定义

---

非常感谢您的帮助。

您能发布您的用户信息服务的代码吗？@DPro请查看更新的代码。我添加了服务和型号代码。Http请求在其他地方完成，请尝试this.userInfoService.userInfo.gender。如果您收到错误，无法读取未定义的属性'SEXT'，则表示您的用户信息尚未初始化。@DPro…感谢您的回复…是的，我无法读取未定义的属性'SEXT'。我如何初始化？你说http请求是在别处完成的，它不应该初始化它吗？

export class UserInfoModel {
      userName= 'peggy'
      gender = 'female'
      ...
      ...
}

userInfo = new UserInfoModel()

console.log('user gender', userInfo.gender)