@SpringQueryMap

枚举类：

public enum AgeType {

    AgeUnknown(0, "全部"),
    AgeChild (1, "儿童"),
    AgeTeenager (2, "青年"),
    AgeAdults (3, "成年"),
    AgeOlder (4, "老年"),
    ;

    
    private int type;
    
    private String desc;

    AgeType(int type, String desc) {
        this.type = type;
        this.desc = desc;
    }

    public int getType() {
        return type;
    }

    
    @JsonValue
    public int getJsonValue(){
        return type ;
    }

    @Override
    public String toString() {
        return String.valueOf(this.type);
    }
}

FeignClient调用：

@GetMapping("/aaa/all")
ResultList listAttribute(@SpringQueryMap AgeType param);

此时枚举类中需要添加@toString方法，

@Override
public String toString() {
    return String.valueOf(this.type);
}

否则：

http://localhost:port/aaa/all?ageType=AgeChild

而不是：

http://localhost:port/aaa/all?ageType=1