[英]I want to convert a binary string to corresponding hex string.But when the input binary string long then NumberFormatException is shown.How to fix it?
[英]I want convert String to long
我有這樣的字符串""3333""
我想轉換為Long
但是在轉換時我看到了這個異常
java.lang.NumberFormatException
我嘗試了很多方法,但我無法轉換
我正在嘗試這種方式
public void addNewFriend(List<String> mobileList, String login) {
try {
List<Long> list = new ArrayList<>();
mobileList.forEach(x -> {
log.debug(x);
x=x.replace("\\\"","");
Long y = Long.parseLong(x);
log.debug(y.toString());
list.add(y);
});
log.debug(list.toString());
Set<AppUser> appUsers = appUserRepository.findByMobileNumberIn(list);
if (appUsers.size() > 0) {
AppUser appUser = appUserRepository.findByLogin(login);
appUser.friends(appUsers);
appUserRepository.save(appUser);
} else {
throw new BadRequestAlertException("cannot find user relation with author", "AppUser", "List is Empty");
}
} catch (NoSuchElementException e) {
throw new BadRequestAlertException("Cannot find User", "Url", "Check your input");
} catch (NullPointerException e) {
throw new BadRequestAlertException("cannot find user relation with author", "AppUser", "List is Empty");
} catch (Exception e) {
throw new BadRequestAlertException(e.getMessage(), "Server Error", "Check it!");
}
}
注意:我收到來自 kafka 的這個請求,我無法直接獲取移動列表
刪除額外的\\
因為\\\"
會尋找\"
這不是你的字符串的情況。
public class Main {
public static void main(String[] args) {
System.out.println(Long.parseLong("\"3333\"".replace("\"", "")));
}
}
Output:
3333
就像這樣將替換替換為替換所有
List<Long> list = new ArrayList<>();
mobileList.forEach(x -> {
log.debug(x);
x=x.replaceAll("\\\"","");
Long y = Long.parseLong(x);
log.debug(y.toString());
list.add(y);
});
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