若依接入 kotlin编译和 Springboot JPA模块

模块中pom.xml引入JPA依赖

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-jpa</artifactId>
                <version>${spring-boot.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
            </dependency>

添加 kotlin依赖

主模块 pom.xml添加属性

        <kotlin.version>1.8.0</kotlin.version>
        <!--启用kotlin增量编译-->
        <kotlin.compiler.incremental>true</kotlin.compiler.incremental>

            <!-- kotlin-->
            <dependency>
                <groupId>org.jetbrains.kotlin</groupId>
                <artifactId>kotlin-stdlib-jdk8</artifactId>
                <version>${kotlin.version}</version>
            </dependency>
            <dependency>
                <groupId>org.jetbrains.kotlin</groupId>
                <artifactId>kotlin-test</artifactId>
                <version>${kotlin.version}</version>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>org.jetbrains.kotlin</groupId>
                <artifactId>kotlin-reflect</artifactId>
                <version>${kotlin.version}</version>
            </dependency>

添加 jpa数据库配置

在 admin模块中的application-druid.yml添加

spring:
    jpa:
        hibernate:
            ddl-auto: update
        open-in-view: false
        show-sql: true
        generate-ddl: true
        properties:
            hibernate:
                dialect: org.hibernate.dialect.MySQL5InnoDBDialect
                format_sql: true
    datasource:
        url: jdbc:mysql://localhost:3306/ry-vue?serverTimezone=Asia/Shanghai
        username: root
        password: 123456

添加 maven编译插件

在模块中创建对应的 kotlin代码目录，我这里是src/main/java/com/ruoyi/kotlin

<!--            kotlin编译-->
            <plugin>
                <groupId>org.jetbrains.kotlin</groupId>
                <artifactId>kotlin-maven-plugin</artifactId>
                <version>${kotlin.version}</version>
                <executions>
                    <execution>
                        <id>compile</id>
                        <phase>process-sources</phase>
                        <goals>
                            <goal>compile</goal>
                        </goals>
                        <configuration>
                            <sourceDirs>
                                <sourceDir>${project.basedir}/src/main/java/com/ruoyi/kotlin</sourceDir>
                                <sourceDir>${project.basedir}/src/main/java</sourceDir>
                            </sourceDirs>
                        </configuration>
                    </execution>
                    <execution>
                        <id>test-compile</id>
                        <goals> <goal>test-compile</goal> </goals>
                        <configuration>
                            <sourceDirs>
                                <sourceDir>${project.basedir}/src/test/kotlin</sourceDir>
                                <sourceDir>${project.basedir}/src/test/java</sourceDir>
                            </sourceDirs>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

编辑BaseEntity类

package com.ruoyi.common.core.domain;

import java.io.Serializable;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonInclude;

import javax.persistence.MappedSuperclass;
import javax.persistence.Transient;

/**
 * Entity基类
 * 
 * @author ruoyi
 */

@MappedSuperclass
public class BaseEntity implements Serializable
{
    private static final long serialVersionUID = 1L;

    /** 搜索值 */
    @JsonIgnore
    private String searchValue;

    /** 创建者 */
    private String createBy;

    /** 创建时间 */
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date createTime;

    /** 更新者 */
    private String updateBy;

    /** 更新时间 */
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date updateTime;

    /** 备注 */
    private String remark;

    /** 请求参数 */
    @JsonInclude(JsonInclude.Include.NON_EMPTY)
    @Transient
    private Map<String, Object> params;

    public String getSearchValue()
    {
        return searchValue;
    }

    public void setSearchValue(String searchValue)
    {
        this.searchValue = searchValue;
    }

    public String getCreateBy()
    {
        return createBy;
    }

    public void setCreateBy(String createBy)
    {
        this.createBy = createBy;
    }

    public Date getCreateTime()
    {
        return createTime;
    }

    public void setCreateTime(Date createTime)
    {
        this.createTime = createTime;
    }

    public String getUpdateBy()
    {
        return updateBy;
    }

    public void setUpdateBy(String updateBy)
    {
        this.updateBy = updateBy;
    }

    public Date getUpdateTime()
    {
        return updateTime;
    }

    public void setUpdateTime(Date updateTime)
    {
        this.updateTime = updateTime;
    }

    public String getRemark()
    {
        return remark;
    }

    public void setRemark(String remark)
    {
        this.remark = remark;
    }

    @Transient
    public Map<String, Object> getParams()
    {
        if (params == null)
        {
            params = new HashMap<>();
        }
        return params;
    }

    public void setParams(Map<String, Object> params)
    {
        this.params = params;
    }
}

编辑 SysUser类

package com.ruoyi.common.core.domain.entity;

import java.util.Date;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Transient;
import javax.validation.constraints.*;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import com.ruoyi.common.annotation.Excel;
import com.ruoyi.common.annotation.Excel.ColumnType;
import com.ruoyi.common.annotation.Excel.Type;
import com.ruoyi.common.annotation.Excels;
import com.ruoyi.common.core.domain.BaseEntity;
import com.ruoyi.common.xss.Xss;

/**
 * 用户对象 sys_user
 *
 * @author ruoyi
 */
@Entity
@Table(name = "sys_user")
public class SysUser extends BaseEntity
{
    private static final long serialVersionUID = 1L;

    /** 用户ID */
    @Excel(name = "用户序号", type = Type.EXPORT, cellType = ColumnType.NUMERIC, prompt = "用户编号")
    @Id
    private Long userId;

    /** 部门ID */
    @Excel(name = "部门编号", type = Type.IMPORT)
    private Long deptId;

    /** 用户账号 */
    @Excel(name = "登录名称")
    private String userName;

    /** 用户昵称 */
    @Excel(name = "用户名称")
    private String nickName;

    /** 用户邮箱 */
    @Excel(name = "用户邮箱")
    private String email;

    /** 手机号码 */
    @Excel(name = "手机号码", cellType = ColumnType.TEXT)
    private String phonenumber;

    /** 用户性别 */
    @Excel(name = "用户性别", readConverterExp = "0=男,1=女,2=未知")
    private String sex;

    /** 用户头像 */
    private String avatar;

    /** 密码 */
    private String password;

    /** 帐号状态（0正常 1停用） */
    @Excel(name = "帐号状态", readConverterExp = "0=正常,1=停用")
    private String status;

    /** 删除标志（0代表存在 2代表删除） */
    private String delFlag;

    /** 最后登录IP */
    @Excel(name = "最后登录IP", type = Type.EXPORT)
    private String loginIp;

    /** 最后登录时间 */
    @Excel(name = "最后登录时间", width = 30, dateFormat = "yyyy-MM-dd HH:mm:ss", type = Type.EXPORT)
    private Date loginDate;

    /** 部门对象 */
    @Excels({
        @Excel(name = "部门名称", targetAttr = "deptName", type = Type.EXPORT),
        @Excel(name = "部门负责人", targetAttr = "leader", type = Type.EXPORT)
    })
    private SysDept dept;

    /** 角色对象 */
    @Transient
    private List<SysRole> roles;

    /** 角色组 */
    @Transient
    private Long[] roleIds;

    /** 岗位组 */
    @Transient
    private Long[] postIds;

    /** 角色ID */
    private Long roleId;

    public SysUser()
    {

    }

    public SysUser(Long userId)
    {
        this.userId = userId;
    }

    public Long getUserId()
    {
        return userId;
    }

    public void setUserId(Long userId)
    {
        this.userId = userId;
    }

    public boolean isAdmin()
    {
        return isAdmin(this.userId);
    }

    public static boolean isAdmin(Long userId)
    {
        return userId != null && 1L == userId;
    }

    public Long getDeptId()
    {
        return deptId;
    }

    public void setDeptId(Long deptId)
    {
        this.deptId = deptId;
    }

    @Xss(message = "用户昵称不能包含脚本字符")
    @Size(min = 0, max = 30, message = "用户昵称长度不能超过30个字符")
    public String getNickName()
    {
        return nickName;
    }

    public void setNickName(String nickName)
    {
        this.nickName = nickName;
    }

    @Xss(message = "用户账号不能包含脚本字符")
    @NotBlank(message = "用户账号不能为空")
    @Size(min = 0, max = 30, message = "用户账号长度不能超过30个字符")
    public String getUserName()
    {
        return userName;
    }

    public void setUserName(String userName)
    {
        this.userName = userName;
    }

    @Email(message = "邮箱格式不正确")
    @Size(min = 0, max = 50, message = "邮箱长度不能超过50个字符")
    public String getEmail()
    {
        return email;
    }

    public void setEmail(String email)
    {
        this.email = email;
    }

    @Size(min = 0, max = 11, message = "手机号码长度不能超过11个字符")
    public String getPhonenumber()
    {
        return phonenumber;
    }

    public void setPhonenumber(String phonenumber)
    {
        this.phonenumber = phonenumber;
    }

    public String getSex()
    {
        return sex;
    }

    public void setSex(String sex)
    {
        this.sex = sex;
    }

    public String getAvatar()
    {
        return avatar;
    }

    public void setAvatar(String avatar)
    {
        this.avatar = avatar;
    }

    public String getPassword()
    {
        return password;
    }

    public void setPassword(String password)
    {
        this.password = password;
    }

    public String getStatus()
    {
        return status;
    }

    public void setStatus(String status)
    {
        this.status = status;
    }

    public String getDelFlag()
    {
        return delFlag;
    }

    public void setDelFlag(String delFlag)
    {
        this.delFlag = delFlag;
    }

    public String getLoginIp()
    {
        return loginIp;
    }

    public void setLoginIp(String loginIp)
    {
        this.loginIp = loginIp;
    }

    public Date getLoginDate()
    {
        return loginDate;
    }

    public void setLoginDate(Date loginDate)
    {
        this.loginDate = loginDate;
    }

    public SysDept getDept()
    {
        return dept;
    }

    public void setDept(SysDept dept)
    {
        this.dept = dept;
    }

    public List<SysRole> getRoles()
    {
        return roles;
    }

    public void setRoles(List<SysRole> roles)
    {
        this.roles = roles;
    }

    public Long[] getRoleIds()
    {
        return roleIds;
    }

    public void setRoleIds(Long[] roleIds)
    {
        this.roleIds = roleIds;
    }

    public Long[] getPostIds()
    {
        return postIds;
    }

    public void setPostIds(Long[] postIds)
    {
        this.postIds = postIds;
    }

    public Long getRoleId()
    {
        return roleId;
    }

    public void setRoleId(Long roleId)
    {
        this.roleId = roleId;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
            .append("userId", getUserId())
            .append("deptId", getDeptId())
            .append("userName", getUserName())
            .append("nickName", getNickName())
            .append("email", getEmail())
            .append("phonenumber", getPhonenumber())
            .append("sex", getSex())
            .append("avatar", getAvatar())
            .append("password", getPassword())
            .append("status", getStatus())
            .append("delFlag", getDelFlag())
            .append("loginIp", getLoginIp())
            .append("loginDate", getLoginDate())
            .append("createBy", getCreateBy())
            .append("createTime", getCreateTime())
            .append("updateBy", getUpdateBy())
            .append("updateTime", getUpdateTime())
            .append("remark", getRemark())
            .append("dept", getDept())
            .toString();
    }
}

在common模块中添加依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
            <version>${spring-boot.version}</version>
        </dependency>

若依 openapi连接地址

http://localhost:1024/dev-api/v3/api-docs

扫描所有，找到SwaggerConfig这个类开启