版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/rocklee/article/details/82346189
enum ACTION{
ac_Entry(10),ac_View(2),ac_Approve(5);
private int _val;
private static final Map<Integer,ACTION> keyMap=new HashMap<Integer,ACTION>();
static{
for (ACTION item:ACTION.values()){
keyMap.put(item._val,item);
}
}
public int getVal(){
return _val;
}
ACTION(int val){
_val=val;
}
public static ACTION fromVal(int pvnVal){
return keyMap.get(pvnVal);
}
}
@Test
public void testEnum(){
ACTION e=ACTION.ac_View;
System.out.println(e+","+e.ordinal()+","+e.getVal());
e=ACTION.fromVal(5);
System.out.println(e+","+e.ordinal()+","+e.getVal());
}
原理,就是用一个map来进行value->enum的转换.
ac_View,1,2
ac_Approve,2,5