我有一個 Java ENUM，用于存盤不同的狀態：
public enum BusinessCustomersStatus {
A("active", "Active"),
O("onboarding", "Onboarding"),
NV("not_verified", "Not Verified"),
V("verified", "Verified"),
S("suspended", "Suspended"),
I("inactive", "Inactive");
@Getter
private String shortName;
@JsonValue
@Getter
private String fullName;
BusinessCustomersStatus(String shortName, String fullName) {
this.shortName = shortName;
this.fullName = fullName;
}
// Use the fromStatus method as @JsonCreator
@JsonCreator
public static BusinessCustomersStatus fromStatus(String statusText) {
for (BusinessCustomersStatus status : values()) {
if (status.getShortName().equalsIgnoreCase(statusText)) {
return status;
}
}
throw new UnsupportedOperationException(String.format("Unknown status: '%s'", statusText));
}
}
完整代碼：https : //github.com/rcbandit111/Search_specification_POC/blob/main/src/main/java/org/merchant/database/service/businesscustomers/BusinessCustomersStatus.java
當我想將專案串列放入頁面的值時，該代碼運行良好，fullName因為我使用了@JsonValue注釋。
我有一個需要獲取shortValue此代碼的情況：
return businessCustomersService.findById(id).map( businessCustomers -> businessCustomersMapper.toFullDTO(businessCustomers));
來源：https : //github.com/rcbandit111/Search_specification_POC/blob/316c97aa5dc34488771ee11fb0dcf6dc1e4303da/src/main/java/org/merchant/service/businesscustomers/BusinessCustomersRestServiceImpl.java#L77
但我明白了fullValue。你知道單行如何映射shortValue嗎？
uj5u.com熱心網友回復：
你可以使用這個：
public enum decizion{
YES("Y"), NO("N"), OTHER;
String key;
decizion(String key) { this.key = key; }
//default constructor, used only for the OTHER case,
//because OTHER doesn't need a key to be associated with.
decizion() { }
static decizion getValue(String x) {
if ("Y".equals(x)) { return YES; }
else if ("N".equals(x)) { return NO; }
else if (x == null) { return OTHER; }
else throw new IllegalArgumentException();
}
}
然后，在該方法中，您可以執行以下操作：
public static decizion yourDecizion() {
...
String key = ...
return decizion.getValue(key);
}
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