在Spring中从ResourceBundleMessageSource获取属性键 [英] Get property keys by pattern from ResourceBundleMessageSource in spring

问题描述

我有近百个这样的属性

    NotEmpty.order.languageFrom=Field Language can't be empty
    NotEmpty.order.languageTo=Field Language can't be empty
    NotEmpty.order.description=Description field can't be empty
    NotEmpty.order.formType=FormType field can't be empty
    NotEmpty.cart.formType=FormType field can't be empty
    NotEmpty.cart.formType=FormType field can't be empty

我希望能够在没有密钥知识的情况下获得这些属性（两个键/值）......类似于 getPropertyPair（regexp。*。订单。[az] * =）

And I'd like to be able getting these properties (both keys/values) without previous knowledge of keys ...something like getPropertyPair(regexp .*.order.[a-z]*=)

有人知道spring或JDK是否提供了相应的东西吗？我想我必须得到ResourceBundle并获取所有密钥并正则表达它们...

Does anybody know if spring or JDK offers something for that ? I suppose I'm gonna have to get the ResourceBundle and get all the keys and regexp them...

推荐答案

我不知道我认为你可以在Spring中做到这一点，但这里有一些可能有用的代码：

I don't think you can do it in Spring, but here's some code that might help:

public class Main {
  public static void main(String[] args) {
    ResourceBundle labels = ResourceBundle.getBundle("spring-regex/regex-resources", Locale.UK);
    Enumeration<String> labelKeys = labels.getKeys();

    // Build up a buffer of label keys
    StringBuffer sb = new StringBuffer();
    while (labelKeys.hasMoreElements()) {
      String key = labelKeys.nextElement();
      sb.append(key + "|");
    }

    // Choose the pattern for matching
    Pattern pattern = Pattern.compile(".*.order.[a-z]*\\|");
    Matcher matcher = pattern.matcher(sb);

    // Attempt to find all matching keys
    List<String> matchingLabelKeys = new ArrayList<String>();
    while (matcher.find()) {
      String key=matcher.group();
      matchingLabelKeys.add(key.substring(0,key.length()-1));
    }

    // Show results
    for (String value: matchingLabelKeys) {
      System.out.format("Key=%s Resource=%s",value,labels.getString(value));
    }

  }

}

有点hacky但我相信你可以将它整理成更有用的东西。

It's a bit hacky but I'm sure you can tidy it up into something more useful.

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