forkJoin(
this.http.get('/hadoopbi/celebrity_details?celebrity_id=' + this.userId),
this.http.get('/hadoopbi/celebrity_prod?celebrity_id=' + this.userId),
this.http.get('/hadoopbi/celebrity_data?celebrity_id=' + this.userId)
)
.subscribe(([res1, res2, res3]) => {
// 有序结果
});
Firma de función: forkJoin(...args, selector : function): Observable