java枚举简单示例

public enum Color
{
    RED("red",1),
    GREEN("green",2),
    BLUE("blue",3),
    UNKNOWN("unknown",9999);
    
    private String name;
    
    private int value;
    
    private Color(String name,int value)
    {
        this.name = name;
        this.value = value;
    }
    
    public String getName()
    {
        return name;
    }
    public void setName(String name)
    {
        this.name = name;
    }
    public int getValue()
    {
        return value;
    }
    public void setValue(int value)
    {
        this.value = value;
    }
    
    /**
     * 根据取值返回名称
     * @param v
     * @return
     */
    public static String getNameByValue(int v)
    {
        // 获取所有枚举
        Color[] colors = values();
        
        for (Color c : colors)
        {
            if (c.getValue() == v)
            {
                return c.getName();
            }
        }
        
        return UNKNOWN.getName();
    }
    
    /**
     * 根据名称返回取值
     * @param v
     * @return
     */
    public static int getValueByName(String name)
    {
        if (StringUtils.isEmpty(name))
        {
            return UNKNOWN.getValue();
        }
        
        // 获取所有枚举
        Color[] colors = values();
        
        for (Color c : colors)
        {
            if (name.equals(c.getName()))
            {
                return c.getValue();
            }
        }
        
        return UNKNOWN.getValue();
    }
}