how do I solve the problem of bind enum in spring controller - spring

Question

when I use common param to do some common logic by using spring. I found I can`t use enum for input. like postman or other.

Answer 1

To solve this problem,I try lots of ways. finally,thanks god.I success.
This is only for RequestMethod.POST.And your param must be object (maybe RequestMethod.GET or single param also available.but I haven`t found how to do that )
example
#Data
#Builder
#AllArgsConstructor
#RequiredArgsConstructor
public class CommonParam implements Serializable {
/**
*
*/
#Size(min = 1, max = CommonConstants.MAX_PARTITION_SIZE)
private List<String> texts;
/**
*
*/
#NotNull
private KeyTypeEnum keyTypeEnum;
}
#PostMapping("/do")
public RpcResult do(#RequestBody #Valid CommonParam commonParam) {
.....
}
the last but not the least
public enum KeyTypeEnum {
/**
* 手机号
*/
PHONE(1, "phone");
private int value;
private String desc;
KeyTypeEnum(int value, String desc) {
this.value = value;
this.desc = desc;
}
public static KeyTypeEnum getByDesc(String desc) {
for (KeyTypeEnum b : KeyTypeEnum.values()) {
if (b.getDesc()
.equals(desc)) {
return b;
}
}
return null;
}
#JsonCreator
public static KeyTypeEnum getByValue(int value) {
for (KeyTypeEnum b : KeyTypeEnum.values()) {
if (Objects.equals(b.getValue(), value)) {
return b;
}
}
return null;
}
#JsonValue
public int getValue() {
return value;
}
public String getDesc() {
return desc;
}
}
By Using #JsonCreator we can ensure the input like '1'(this code is the KeyTypeEnum`s already defined value) can be success convert to enum.
#JsonValue ensure '1' can be success get for spring.

Answer 2

The value of KeyTypeEnum should be PHONE in the JSON payload. It's not feasible to uniquely resolve by the value 1 as you are expecting. You can have multiple enum with the same value.