如何在Java中检测用户的REAL区域设置(区域设置)

时间:2013-04-15 16:35:27

标签: java locale java-7

更新 在此处放置工作/固定代码只是为了完整起见。 可以在 here 找到有关原因的详细说明。 感谢用户 Perception 指示我。

以下是代码:

import java.util.Locale;

/**
 * Demonstrating proper usage of Java's {@linkplain Locale} class
 * in respect to accessing user's regional settings, specifically
 * the locale configured for date/time/number formatting.
 *
 * @see Locale#getDefault(java.util.Locale.Category)
 * @see Locale#getDefault()
 */
public class DefaultLocaleChangesJava7Demo {
  private static final String NO_VALUE = "<- empty ->";
  private static final String[] ENVVAR_NAMES = {
      "java.runtime.name", "java.runtime.version", "java.vm.name", "java.vm.version",
      "os.name", "os.version", "os.arch",
      "user.language", "user.country", "user.script", "user.variant",
      "user.language.format", "user.country.format", "user.script.format" };

  public static void main(String[] args) {
    // Print out select environment variables.
    System.out.println();
    System.out.println("System Information (environment):");
    for (String name : ENVVAR_NAMES) {
      String value = System.getProperty(name);
      if (value == null || value.length() == 0) {
        value = NO_VALUE;
      }
      System.out.println("  " + name + " = " + value);
    }

    // Print out default display locale information.
    System.out.println("\nDefault Display Locale:");
    final Locale defaultLocale = Locale.getDefault();
    System.out.println(localeToString(defaultLocale, "  default."));

    // Print out default format locale information.
    System.out.println("\nDefault Format Locale:");
    final Locale formatLocale = Locale.getDefault(Locale.Category.FORMAT);
    System.out.println(localeToString(formatLocale, "  format."));
  }

  public static String localeToString(Locale locale, String prefix) {
    final StringBuffer result = new StringBuffer();

    result.append(prefix);
    result.append("locale.language = ");
    result.append(locale.getLanguage());
    result.append(" (");
    result.append(locale.getDisplayLanguage());
    result.append(")\n");

    result.append(prefix);
    result.append("locale.country = ");
    result.append(locale.getCountry());
    result.append(" (");
    result.append(locale.getDisplayCountry());
    result.append(")\n");

    result.append(prefix);
    result.append("locale.script = ");
    result.append(locale.getScript());
    result.append(" (");
    result.append(locale.getDisplayScript());
    result.append(")\n");

    result.append(prefix);
    result.append("locale.variant = ");
    result.append(locale.getVariant());
    result.append(" (");
    result.append(locale.getDisplayVariant());
    result.append(")\n");

    return result.toString();
  }
}

原始问题

今天我注意到Java Locale.getDefault()没有返回我在Windows 7帐户中配置的区域设置。

演示应用程序:

import java.util.Locale;

public class BadLocaleDemo {
  private static final String NO_VALUE = "<- empty ->";
  private static final String[] ENVVAR_NAMES = {
      "java.runtime.name", "java.runtime.version", "java.vm.name", "java.vm.version",
      "os.name", "os.version", "os.arch" };

  public static void main(String[] args) {
    // Print out select environment variables.
    System.out.println();
    System.out.println("System Information (environment):");
    for (String name : ENVVAR_NAMES) {
      String value = System.getProperty(name);
      if (value == null || value.length() == 0) {
        value = NO_VALUE;
      }
      System.out.println("  " + name + " = " + value);
    }

    // Print out default locale information.
    System.out.println();
    System.out.println("Default Locale:");

    final Locale defaultLocale = Locale.getDefault();
    System.out.println("  default.locale.language = " + defaultLocale.getLanguage());
    System.out.println("  default.locale.country = " + defaultLocale.getCountry());
    System.out.println("  default.locale.display.language = " + defaultLocale.getDisplayLanguage());
    System.out.println("  default.locale.display.country = " + defaultLocale.getDisplayCountry());
  }
}

并打印出来的信息:

System Information (environment):
  java.runtime.name = Java(TM) SE Runtime Environment
  java.runtime.version = 1.7.0_02-b13
  java.vm.name = Java HotSpot(TM) 64-Bit Server VM
  java.vm.version = 22.0-b10
  os.name = Windows 7
  os.version = 6.1
  os.arch = amd64

Default Locale:
  default.locale.language = en
  default.locale.country = US
  default.locale.display.language = English
  default.locale.display.country = United States

默认本地应该是sr_RS根据我的区域设置(工作日的名称在托盘时钟上是cyrilic),但Java正在报告en_US

有没有人知道如何解决这个问题?

我在StackOverflow上找到的相关帖子只有这两个:

0 个答案:

没有答案
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