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在upload()
方法中,为什么要用Observable.just+flatmap才能成功地获取到token呢
如我写的两段用和不用的代码,结果只有使用以上组合的才能成功,直接请求的就会不断打印error.这是为什么呢,求教
Observable.just(session)
.flatMap(s1 -> DataManager.getInstance().login(s1))
.retryWhen(observable ->
observable.flatMap(throwable -> {
System.out.println("error");
if (throwable instanceof IllegalAccessException) {
return DataManager.getInstance().getSession().doOnNext(s -> {
session.setSession(s);
});
}
return Observable.just(throwable);
}
)
)
............................
DataManager.getInstance().login(session)
.retryWhen(observable ->
observable.flatMap(throwable -> {
System.out.println("error");
if (throwable instanceof IllegalAccessException) {
return DataManager.getInstance().getSession().doOnNext(s -> {
System.out.println("session error");
session.setSession(s);
});
}
return Observable.just(throwable);
}
)
)
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