源碼
1. 使用者管理中存儲男女對應的key值100、101
2. maven依賴配置
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- 目前版本的mybatis-plus不需要在配置檔案中定義type-enums-package屬性 -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.5.3</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.31</version>
</dependency>
</dependencies>
3. 定義枚舉類GenderEnum
關鍵點:
@EnumValue:标注哪一個字段是資料庫裡的字段;
@JsonValue:标注要開啟自定義序列化傳回值;
toString:具體的傳回值;
// GenderEnum枚舉類
@AllArgsConstructor
public enum GenderEnum implements IEnum {
MAIL(100, "男"),
FEMAIL(101, "女"),
UNKNOWN(102, "未知");
;
// 存入資料庫的value值
@EnumValue
private Integer value;
// 傳回到前端的值
@JsonValue
private String desc;
@Override
public Integer getValue() {
return value;
}
@Override
public String toString() {
return this.desc;
}
}
5.結果
1)插入
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIyZuBnLjdTYlJDMkdjMwQmY3EWN5YGO3QTO2YTZyATYiFDZkR2Lc52YucWbp5GZzNmLn9Gbi1yZtl2Lc9CX6MHc0RHaiojIsJye.png)