问如何在Java中从字符串值获取枚举值

EN

public enum Blah {
    A("text1"),
    B("text2"),
    C("text3"),
    D("text4");

    private String text;

    Blah(String text) {
        this.text = text;
    }

    public String getText() {
        return this.text;
    }

    public static Blah fromString(String text) {
        for (Blah b : Blah.values()) {
            if (b.text.equalsIgnoreCase(text)) {
                return b;
            }
        }
        return null;
    }
}

/**
 * A common method for all enums since they can't have another base class
 * @param <T> Enum type
 * @param c enum type. All enums must be all caps.
 * @param string case insensitive
 * @return corresponding enum, or null
 */
public static <T extends Enum<T>> T getEnumFromString(Class<T> c, String string) {
    if( c != null && string != null ) {
        try {
            return Enum.valueOf(c, string.trim().toUpperCase());
        } catch(IllegalArgumentException ex) {
        }
    }
    return null;
}

public static MyEnum fromString(String name) {
    return getEnumFromString(MyEnum.class, name);
}