ResourceBundleUtils .java

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;



/**
 * 國際化語言工具類
 * @author 
 *
 */
public
 
 class ResourceBundleUtils {

    /**
     * 國際化語言檔案的名稱
     */
    public static final String LANGUAGE_FILE_NAME = "your_file_name";
    public static Map<String, ResourceBundle> ResourceBundleConfigMap = new HashMap<String, ResourceBundle>();
    public static Log log = LogFactory.getLog(ResourceBundleUtils.class);

    /**
     * 返回國際化語言
     * @param
 
 language 使用者當前的語言環境
     * @param key      語言配置檔案的key
     * @return
     * @throws Exception 
     */
    public static String getValue(String language, String key) {
        return getValue(language2Locale(language), key);
    }

    public static String getValue(Locale locale, String key) {
        String language = locale.getLanguage() + "_"
 
 + locale.getCountry();
        ResourceBundle config = ResourceBundleConfigMap.get(language);
        if(config == null){
            ResourceBundleConfigMap.put(language, ResourceBundle.getBundle(LANGUAGE_FILE_NAME, locale));
        }
        try{
            return ResourceBundleConfigMap.get(language).getString(key).trim();
        }catch(MissingResourceException e){
            log.error("使用者語言環境引數language = " + language);
            log.error("無法找到key為 "+key+" 對應的value.",e);
            return key;
        }
    }

    public static Locale language2Locale(String language){
        try{
            String[] locale = language.split("_");
            return new Locale(locale[0], locale[1]);
        }catch(Exception e){
            log.error("語言轉換成Locale失敗，已設定成預設語言", e);
            return Locale.getDefault();
        }
    }

    //測試
    public static void main(String[] args) throws Exception {
        System.out.println(ResourceBundleUtils.getValue("zh_CN", "xxx"));;
    }
}