StringManager与ResourceBundle

• StringManager与ResourceBundle

StringManager与ResourceBundle

1. StringManager

位于org.apache.catalina.util下，使用单例模式只含有一个对象，内部含有Hashtable的managers，用于存储(key,value),key为包名

private StringManager(String packageName) {
        String bundleName = packageName + ".LocalStrings";
        bundle = ResourceBundle.getBundle(bundleName);
    }
    public synchronized static StringManager getManager(String packageName) {
        StringManager mgr = (StringManager)managers.get(packageName);
        if (mgr == null) {
            mgr = new StringManager(packageName);
            managers.put(packageName, mgr);
        }
        return mgr;
    }

2. ResourceBundle类

2.1 作用

用于实现国际化，

import javax.annotation.Resource;
import java.util.Locale;
import java.util.ResourceBundle;

/**
 * @author OovEver
 * 2018/1/14 22:12
 */
public class Main {
    public static void main(String args[]) {
        ResourceBundle bundle = ResourceBundle.getBundle("my", new Locale("zh", "CN"));
    	bundle.getString(key)
    }
}
// getBundle内部实现
 @CallerSensitive
    public static final ResourceBundle getBundle(String baseName)
    {
        return getBundleImpl(baseName, Locale.getDefault(),
                             getLoader(Reflection.getCallerClass()),
                             getDefaultControl(baseName));
    }

本文地址：https://blog.csdn.net/qq_25848311/article/details/109643795