使用mybatis-plus-generator-ui自动生代码

Question

使用mybatis-plus-generator-ui自动生代码，在页面选择了自动填充字段后生成代码报错，提示没有insert枚举

代码如下
pom文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>game_play</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <parent>
        <artifactId>spring-boot-starter-parent</artifactId>
        <groupId>org.springframework.boot</groupId>
        <version>2.3.5.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.5.3</version>
        </dependency>

        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.3</version>
        </dependency>

        <dependency>
            <groupId>com.github.xiaoymin</groupId>
            <artifactId>knife4j-spring-boot-starter</artifactId>
            <version>3.0.3</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>com.github.davidfantasy</groupId>
            <artifactId>mybatis-plus-generator-ui</artifactId>
            <version>2.0.0</version>
            <scope>compile</scope>
        </dependency>

    </dependencies>

</project>

通用父类

package com.test.game.entity;

import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.fasterxml.jackson.annotation.JsonFormat;
import lombok.Data;

import java.io.Serializable;
import java.time.LocalDate;
import java.util.Date;

/**
 * @author清梦
 * @site www.xiaomage.com
 * @company xxx公司
 * @create 2024-04-08 23:35
 */
@Data
public abstract class AbstractEntity implements Serializable {
    private static final long serialVersionUID = 1L;
    @TableId(type = IdType.AUTO)
    private Long id;

    @TableField(fill = FieldFill.INSERT)
    private String createBy;

    @TableField(fill = FieldFill.INSERT)
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:SS",timezone = "GMT+8")
    private LocalDate createTime;

    @TableField(fill = FieldFill.INSERT_UPDATE)
    private String updateBy;

    @TableField(fill = FieldFill.INSERT_UPDATE)
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:SS",timezone = "GMT+8")
    private LocalDate updateTime;
}

自动生成配置类

package com.test.game.config;

import com.github.davidfantasy.mybatisplus.generatorui.GeneratorConfig;
import com.github.davidfantasy.mybatisplus.generatorui.MybatisPlusToolsApplication;
import com.github.davidfantasy.mybatisplus.generatorui.mbp.NameConverter;

public class AutoCreateCode {
    public static void main(String[] args) {
        GeneratorConfig config = GeneratorConfig.builder().jdbcUrl("jdbc:mysql://localhost:3306/game_play?serverTimezone=Asia/Shanghai&characterEncoding=utf-8")
                .userName("root").password("root").driverClassName("com.mysql.cj.jdbc.Driver")
                // 数据库schema，POSTGRE_SQL,ORACLE,DB2类型的数据库需要指定
                // .schemaName("myBusiness")
                // 如果需要修改各类生成文件的默认命名规则，可自定义一个NameConverter实例，覆盖相应的名称转换方法：
                .nameConverter(new NameConverter() {
                    /**
                     * 自定义Service类文件的名称规则
                     */
                    public String serviceNameConvert(String tableName) {
                        return this.entityNameConvert(tableName) + "Service";
                    }

                    /**
                     * 自定义Controller类文件的名称规则
                     */
                    public String controllerNameConvert(String tableName) {
                        return this.entityNameConvert(tableName) + "Controller";
                    }
                }).basePackage("com.test.game").port(8068).build();

        MybatisPlusToolsApplication.run(config);
    }
}

在策略配置页面选择自动填充字段

点击生成久会报错

java.lang.IllegalArgumentException: No enum constant com.baomidou.mybatisplus.annotation.FieldFill.insert
    at java.lang.Enum.valueOf(Enum.java:238) ~[na:1.8.0_191]
    at com.baomidou.mybatisplus.annotation.FieldFill.valueOf(FieldFill.java:30) ~[mybatis-plus-annotation-3.5.3.1.jar:3.5.3.1]
    at com.github.davidfantasy.mybatisplus.generatorui.mbp.MbpGenerator.configEntity(MbpGenerator.java:252) ~[mybatis-plus-generator-ui-2.0.0.jar:na]
    at com.github.davidfantasy.mybatisplus.generatorui.mbp.MbpGenerator.lambda$genCodeBatch$5(MbpGenerator.java:86) ~[mybatis-plus-generator-ui-2.0.0.jar:na]
    at com.baomidou.mybatisplus.generator.FastAutoGenerator.strategyConfig(FastAutoGenerator.java:164) ~[mybatis-plus-generator-3.5.3.1.jar:3.5.3.1]
    at com.github.davidfantasy.mybatisplus.generatorui.mbp.MbpGenerator.genCodeBatch(MbpGenerator.java:82) ~[mybatis-plus-generator-ui-2.0.0.jar:na]
    at com.github.davidfantasy.mybatisplus.generatorui.controller.MbpGeneratorController.genCode(MbpGeneratorController.java:22) ~[mybatis-plus-generator-ui-2.0.0.jar:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_191]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_191]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_191]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_191]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) [spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) [tomcat-embed-core-9.0.39.jar:4.0.FR]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) [tomcat-embed-core-9.0.39.jar:4.0.FR]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_191]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_191]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_191]

2025-05-12 23:50:17.154 ERROR 9132 --- [nio-8068-exec-2] c.g.d.m.g.c.WebControllerAdvice          : 系统发生内部错误，请查看控制台日志了解详情

java.lang.IllegalArgumentException: No enum constant com.baomidou.mybatisplus.annotation.FieldFill.insert
    at java.lang.Enum.valueOf(Enum.java:238) ~[na:1.8.0_191]
    at com.baomidou.mybatisplus.annotation.FieldFill.valueOf(FieldFill.java:30) ~[mybatis-plus-annotation-3.5.3.1.jar:3.5.3.1]
    at com.github.davidfantasy.mybatisplus.generatorui.mbp.MbpGenerator.configEntity(MbpGenerator.java:252) ~[mybatis-plus-generator-ui-2.0.0.jar:na]
    at com.github.davidfantasy.mybatisplus.generatorui.mbp.MbpGenerator.lambda$genCodeBatch$5(MbpGenerator.java:86) ~[mybatis-plus-generator-ui-2.0.0.jar:na]
    at com.baomidou.mybatisplus.generator.FastAutoGenerator.strategyConfig(FastAutoGenerator.java:164) ~[mybatis-plus-generator-3.5.3.1.jar:3.5.3.1]
    at com.github.davidfantasy.mybatisplus.generatorui.mbp.MbpGenerator.genCodeBatch(MbpGenerator.java:82) ~[mybatis-plus-generator-ui-2.0.0.jar:na]
    at com.github.davidfantasy.mybatisplus.generatorui.controller.MbpGeneratorController.genCode(MbpGeneratorController.java:22) ~[mybatis-plus-generator-ui-2.0.0.jar:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_191]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_191]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_191]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_191]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) [spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) [tomcat-embed-core-9.0.39.jar:4.0.FR]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) [tomcat-embed-core-9.0.39.jar:4.0.FR]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.10.RELEASE.jar:5.2.10.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_191]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_191]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.39.jar:9.0.39]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_191]

问题1：为什么自动填充字段会报错
问题2：如果有中间表，比如user，role，user_role,中间表只有id，user_id，role_id三个字段，生成时没有中间表生成，这是为什么

Answer 1

阿里嘎多学长整理AIGC生成，因移动端显示问题导致当前答案未能完全显示，请使用PC端查看更加详细的解答过程

问题解答

你使用 MyBatis-Plus-Generator-UI 自动生成代码，但是在选择自动填充字段后生成代码时报错，提示没有 insert 枚举。

解决方案

1. 检查pom文件中的依赖关系，确保你已经添加了 mybatis-plus-generator 和 mybatis-plus-generator-ui 依赖项。

<dependencies>
    <!-- mybatis-plus-generator -->
    <dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-generator</artifactId>
        <version>3.5.2</version>
    </dependency>
    <!-- mybatis-plus-generator-ui -->
    <dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-generator-ui</artifactId>
        <version>3.5.2</version>
    </dependency>
</dependencies>

1. 检查你的代码中是否正确地使用了 @Table 注解，确保每个实体类都有一个唯一的 @Table 注解。

@Entity
@Table(name = "user")
public class User {
    // ...
}

1. 如果你使用了枚举类型，确保枚举类也正确地使用了 @Enum 注解。

@Enum
public enum Sex {
    MALE, FEMALE
}

1. 如果你使用了自定义的枚举类型，确保枚举类实现了 Enum 接口。

public enum Sex implements Enum {
    MALE, FEMALE
}

1. 如果你仍然遇到问题，可以尝试清除项目的缓存，或者重新生成代码。

核心代码

无需核心代码，因为问题主要是关于 MyBatis-Plus-Generator-UI 的使用和配置问题。