java - 三个物体合而为一？

Question

遇到一个问题，我返回三个 json 对象。无论如何，我想做的就是作为一个 JSON 对象返回。与我下面的结果类似。所以，我试图展示我的 Controller - 我相信我的 Controller 返回 3 个对象而不是 1 个。感谢您的帮助。

这是我的代码:

我尝试这样做:

@RequestMapping(value = "all", method = RequestMethod.GET)
    public @ResponseBody
    MyAutoComplete getMoney(@RequestParam(value = "myautocomplete") String myautocompleteValue) {

    List<MyAutoComplete> list = myautoCompleteService.gettingMoney(myautocompleteValue);
    return merge(list);

}


MyAutoComplete merge(List<MyAutoComplete> list){
    MyAutoComplete accountacy = list.get(0);
    for (int i = 1; i < list.size(); i++) {
        MyAutoComplete myautoComplete = list.get(i);
        if (myautoComplete.getTimeAnnual() != null) {
            accountacy.setTimeAnnual((autoComplete.getTimeAnnual(());
        }
        if (autoComplete.getTimeBiweekly() != null) {
            accountacy.setTimeBiweekly(autoComplete.getTimeBiweekly());
        }
        if (autoComplete.getTimeHourly() != null) {
            accountacy.setTimeHourly(autoComplete.getTimeHourly());
        }

    }
    return accountacy;
}

Answer 1

如果无法更改存储库端的查询，可以将列表中的对象合并到 Controller 中的单个对象

public @ResponseBody
LIst<AutoComplete> getSalary(@RequestParam(value = "autocomplete") String autocompleteValue) {

  List<AutoComplete> list = autoCompleteService.retrieveSalary(autocompleteValue);
  return Arrays.asList(merge(list));

}


AutoComplete merge(List<AutoComplete> list){
    AutoComplete acc = list.get(0);
    for (int i = 1; i < list.size(); i++) {
        AutoComplete autoComplete = list.get(i);
        if (autoComplete.getAnnual() != null) {
            acc.setAnnual(autoComplete.getAnnual());
        }
        if (autoComplete.getBiweekly() != null) {
            acc.setBiweekly(autoComplete.getBiweekly());
        }
        if (autoComplete.getHourly() != null) {
            acc.setHourly(autoComplete.getHourly());
        }

    }
    return acc;
}