Changing all the map for the javabean object, there is a field is an enumeration type UserIdentityType, turned not to go, could you tell me how to solve this?

 
Public class DamiUser extends BaseModel {

Primary key name *//* 
Public final String KEY_NAME="DamiUser"; 

User Id/* */
Private String userId. 

User id/* type */
Private UserIdentityType userIdentity; 

/* */user id number 
Private String userIdentityNo; 

/* */
 create timePrivate String creationTime. 
} 

 
/* * 
* @ Description: changing all the map for the javabean object 
* @ Author: Administrator 
* @ DateTime: 2020/9/5 15:01 
* @ Params: to convert the Map 

 * @ Return: Bean object*/
Public static & lt; T> T mapToBean (Map Map, T bean) throws the Exception {

BeanMap BeanMap=null; 

Try {
BeanMap=beanMap. Create (bean); 

BeanMap. PutAll (map); 
} the catch (Exception e) {
Throw new Exception (e); 
} 

Return the bean; 
} 

The Exception in the thread "main" Java. Lang. Exception: Java. Lang. ClassCastException: Java. Lang. String always be cast to com. JHJK. Dami. Enmu. UserIdentityType
At com. JHJK. Dami. Utils. SysUtil. MapToBean (SysUtil. Java: 139)
At com. JHJK. Dami. MainTests. MapToBean (MainTests. Java: 64)
At com. JHJK. Dami. MainTests. Main (49) MainTests. Java:

CodePudding user response:

It encapsulates a method well, anyway, it's not hard to

 public class Sample {
The static enum EnumTest {
One, Tow, Three; 
} 
Static class TestBean {
private String name; 
Private EnumTest et; 
Public String toString () {
Return the String. Format (" name: % s, et: % s ", name, et); 
} 
} 
Public static & lt; T> T mapToBean (Map T beans) map, throws the Exception set {//their encapsulation method, using the reflection of the bean attribute 
Class<?> CLS=bean. GetClass (); 
Try {
For (Field f: CLS getDeclaredFields ()) {
If (map. Either containsKey (f.g etName ())) {
F.s etAccessible (true); 
If (f.g etType (.) isEnum ()) {//if it is enum type 
The Object obj=null; 
For (Object o: f.g etType () getEnumConstants ()) {//remove all enum values and map the value of the contrast 
If (o.t oString (.) the equals (map) get (f.g etName ()))) {//contrast is kept same enum 
Obj=o; 
break; 
} 
} 
F.s et (bean, obj);//set the bean enum properties 
} else {
F.s et (bean, map. Get (f.g etName ())); 
} 
} 
} 
} the catch (Exception e) {
Throw new Exception (e); 
} 

Return the bean; 
} 
Public static void main (String [] args) {
Try {
Map map=new HashMap<> (a); 
The map. The put (" name ", "test"); 
The map. The put (" et ", "Tow"); 
TestBean TB=new TestBean (); 
MapToBean (map, TB); 
System. The out. Println (TB); 
} the catch (Throwable e) {
e.printStackTrace(); 
} 
} 
}