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我的代码是这样Angular2中的BehaviorSubject不是第二次设置值?
login.component.ts
loginSucess() {
this.MenuService.setUserName(userauthresponce.username);
}
MenuService.ts
private usernameSource = new BehaviorSubject<any>(0);
setUserName (username) {
this.usernameSource.next(username);
}
getUserName() {
return this.usernameSource.asObservable();
}
other.component.ts
constructor(MenuService:MenuService) {
this.MenuService.getUserName().subscribe(responce => {
console.log('username', responce);
this.username = responce;
});
}
/* it's not working hear*/
switchrole() {
this.router.navigate(['/dashboard']);
this.MenuService.setUserName(this.username);
}
我在第一次登录时获取用户名,之后当用户单击切换角色按钮时它正在调用切换角色功能,在此功能中,我必须将该页导航到仪表板,在这种情况下,我将用户名作为0;
即使我设置为从switchrole()的用户名,但是这是不工作
,我没有得到我的错误,请帮我
你在哪里提供'MenuService'? – yurzui