Generator【SpringBoot集成】代码生成+knife4j接口文档（2种模板设置、逻辑删除、字段填充 含代码粘贴可用）保姆级教程（注意事项+建表SQL+代码生成类封装+测试类）

CREATE TABLE `student` (
  `id` int(64) NOT NULL AUTO_INCREMENT COMMENT '编号',
  `name` varchar(32) DEFAULT NULL COMMENT '姓名',
  `age` int(3) DEFAULT NULL COMMENT '年龄',
  `is_delete` int(1) NOT NULL DEFAULT '0' COMMENT '是否删除',
  `create_time` datetime DEFAULT NULL COMMENT '入库时间',
  `update_time` datetime DEFAULT NULL COMMENT '修改时间',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8 ROW_FORMAT=DYNAMIC;

<!--代码生成插件-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.3.1.tmp</version>
        </dependency>
        <!--代码生成模板-->
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.2</version>
        </dependency>
        <!--可选代码生成模板-->
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.29</version>
        </dependency>
        <!--接口文档-->
        <dependency>
            <groupId>com.github.xiaoymin</groupId>
            <artifactId>knife4j-spring-boot-starter</artifactId>
            <version>3.0.2</version>
        </dependency>
        <!--strategy.setEntityLombokModel(true);如果设置为true是需要lombok的-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

mybatis-plus:
  mapper-locations: classpath*:/com/example/demo/**/mapper/xml/*.xml
  global-config:
    db-config:
      logic-not-delete-value: 0
      logic-delete-value: 1

class CodeGenerator {
    /**
     * 项目根路径
     */
    private static final String PROJECT_PATH = "E:\yuanzheng-codebase\m-framework\codegenerator";
    /**
     * 注释@auth 名称
     */
    private static final String AUTH = "auth";
    /**
     * 父包全限定类名
     */
    private static final String PARENT = "com.example.demo";
    /**
     * 模块名称
     */
    private static final String MODEL_NAME = "student";
    /**
     * 忽略的表前缀
     */
    private static final String[] IGNORE_TABLE_PFX = new String[]{"table_", "t_"};
    /**
     * 要生成的表名
     */
    private static final String TABLE_NAMES = "student";
    /**
     * 数据源配置
     */
    private static final DataSourceConfig DSC = new DataSourceConfig();
    static {
        DSC.setDbType(DbType.MYSQL);
        DSC.setUrl("jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&transformedBitIsBoolean=true");
        DSC.setDriverName("com.mysql.cj.jdbc.Driver");
        DSC.setUsername("root");
        DSC.setPassword("root");
    }
    @Test
    void test() {
        main(null);
    }
    static void main(String[] args) {
        // 代码生成器
        AutoGenerator mpg = new AutoGenerator();
        /*
         * 全局配置
         */
        GlobalConfig gc = new GlobalConfig();
        // 输出路径
        gc.setOutputDir(PROJECT_PATH + "/src/main/java");
        // 设置作者
        gc.setAuthor(AUTH);
        // 生成代码后，是否打开文件夹
        gc.setOpen(false);
        // 是否覆盖原来代码
        gc.setFileOverride(false);
        // 去掉service的I前缀,一般只需要设置service就行
//        gc.setServiceName("%sService");
//        gc.setMapperName("%sMapper");
//        gc.setXmlName("%sMapper");
//        gc.setServiceImplName("%sServiceImpl");
//        gc.setControllerName("%sController");
        // 日期格式
        gc.setDateType(DateType.ONLY_DATE);
        // 实体属性 Swagger2 注解,实体类上会增加注释
        gc.setSwagger2(true);
        mpg.setGlobalConfig(gc);
        /*
         * 数据源配置
         */
        mpg.setDataSource(DSC);
        /*
         * 配置模板（generator默认的是velocity，使用freemarker的话要打开此项设置）
         */
        // mpg.setTemplateEngine(new FreemarkerTemplateEngine());
        /*
         * 包配置
         */
        PackageConfig pc = new PackageConfig();
        pc.setParent(PARENT);
        pc.setModuleName(MODEL_NAME);
        pc.setEntity("entity");
        pc.setMapper("mapper");
        pc.setService("service");
        pc.setController("controller");
        mpg.setPackageInfo(pc);
        /*
         * 策略配置
         */
        StrategyConfig strategy = new StrategyConfig();
        strategy.setInclude(TABLE_NAMES);
        strategy.setTablePrefix(IGNORE_TABLE_PFX);
        // 包的命名规则，使用驼峰规则
        strategy.setNaming(NamingStrategy.underline_to_camel);
        // 列的名称，使用驼峰规则
        strategy.setColumnNaming(NamingStrategy.underline_to_camel);
        // 是否使用lombok（要确认项目是否有lombok）
        strategy.setEntityLombokModel(true);
        // 是否使用
        strategy.setRestControllerStyle(true);
        // 逻辑删除（要结合数据表字段使用）
        strategy.setLogicDeleteFieldName("is_delete");
        // 自动填充字段
        TableFill fillInsert = new TableFill("create_time", FieldFill.INSERT);
        TableFill fillUpdate = new TableFill("update_time", FieldFill.UPDATE);
        List fillLists = new ArrayList();
        fillLists.add(fillInsert);
        fillLists.add(fillUpdate);
        strategy.setTableFillList(fillLists);
        //乐观锁
        //strategy.setVersionFieldName("version");
        mpg.setStrategy(strategy);
        // 执行
        mpg.execute();
    }
}

@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@ApiModel(value="Student对象", description="")
public class Student implements Serializable {
    private static final long serialVersionUID=1L;
    @ApiModelProperty(value = "编号")
    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;
    @ApiModelProperty(value = "姓名")
    private String name;
    @ApiModelProperty(value = "年龄")
    private Integer age;
    @ApiModelProperty(value = "是否删除")
    @TableLogic
    private Integer isDelete;
    @ApiModelProperty(value = "入库时间")
    @TableField(fill = FieldFill.INSERT)
    private Date createTime;
    @ApiModelProperty(value = "修改时间")
    @TableField(fill = FieldFill.UPDATE)
    private Date updateTime;
}

@Component
public class DateObjectHandler implements MetaObjectHandler {
    @Override
    public void insertFill(MetaObject metaObject) {
        this.setFieldValByName("createTime", new Date(), metaObject);
    }
    @Override
    public void updateFill(MetaObject metaObject) {
        this.setFieldValByName("updateTime", new Date(), metaObject);
    }
}

@RestController
@RequestMapping("/student")
@Api(value = "学生", tags = {"增删改查"})
public class StudentController {
    @Autowired
    private IStudentService studentService;
    @GetMapping("/get")
    @ApiOperation(value = "获取学生列表")
    public List<Student> getStudents() {
        LambdaQueryWrapper<Student> query = Wrappers.lambdaQuery(Student.class);
        return studentService.list(query);
    }
    @PostMapping("/add")
    @ApiOperation(value = "新增学生信息")
    public boolean addStudent(@ApiParam Student student) {
        return studentService.save(student);
    }
    @PostMapping("/update")
    @ApiOperation(value = "修改学生信息")
    public boolean updateStudent(@ApiParam Student student) {
       return studentService.updateById(student);
    }
    @GetMapping("/del")
    @ApiOperation(value = "删除学生信息")
    public boolean deleteStudent(@ApiParam(name = "id",value = "唯一ID") Integer id) {
        return studentService.removeById(id);
    }
}