SpringBoot集成MyBatis框架

引入依赖

• 在pom文件中引入mybatis-spring-boot-starter、mysql-connector-java。

• mybatis-spring-boot-starter、mysql-connector-java

<mybatis.spring.version>1.3.2</mybatis.spring.version>

<!-- mybatis -->
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>${mybatis.spring.version}</version>
</dependency>

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

• 完整的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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.5</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.gold</groupId>
    <artifactId>gj-tmall</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>gj-tmall</name>
    <description>构建SpringBoot项目</description>

    <properties>
        <java.version>1.8</java.version>
        <mybatis.spring.version>1.3.2</mybatis.spring.version>
    </properties>

    <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>

        <!-- mybatis -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>${mybatis.spring.version}</version>
        </dependency>

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

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

添加配置

配置MyBatis

新建com.gold.tmall.config包，并创建一个MyBatis配置类MyBatisConfig.java，配置相关扫描路径，包括DAO，Model，XML映射文件的扫描。

MyBatisConfig.java

package com.gold.tmall.config;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import javax.annotation.Resource;
import javax.sql.DataSource;

/**
 * MapperScan 扫描DAO
 * @author zhang.fuiqng
 * @date 2021-04-18 21:13:00
 */
@Configuration
@MapperScan("com.gold.tmall.**.dao")
public class MyBatisConfig {

    @Resource
    private DataSource dataSource;

    @Bean
    public SqlSessionFactory sqlSessionFactory() throws Exception {
        SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
        sessionFactory.setDataSource(dataSource);
        // 扫描Model
        sessionFactory.setTypeAliasesPackage("com.gold.tmall.**.model");
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        // 扫描映射文件
        sessionFactory.setMapperLocations(resolver.getResources("classpath*:**/sqlmap/*.xml"));
        return sessionFactory.getObject();
    }
}

• （可能需要更改包名和xml文件路径与实际项目情况一致）

配置数据源

在application.yml中，添加MySQL数据源连接信息，配置端口8088。文件application.properties更改名称为：application.yml。

server:
  port: 8088
spring:
  datasource:
    driverClassName: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/tmall?useUnicode=true&zeroDateTimeBehavior=convertToNull&autoReconnect=true&characterEncoding=utf-8
    username: root
    password: 123456

建库建表添加数据

DROP TABLE IF EXISTS `sys_user`;
CREATE TABLE `sys_user` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '编号',
  `name` varchar(50) NOT NULL COMMENT '用户名',
  `nick_name` varchar(150) DEFAULT NULL COMMENT '昵称',
  `avatar` varchar(150) DEFAULT NULL COMMENT '头像',
  `password` varchar(100) DEFAULT NULL COMMENT '密码',
  `salt` varchar(40) DEFAULT NULL COMMENT '加密盐',
  `email` varchar(100) DEFAULT NULL COMMENT '邮箱',
  `mobile` varchar(100) DEFAULT NULL COMMENT '手机号',
  `status` tinyint(4) DEFAULT NULL COMMENT '状态  0：禁用   1：正常',
  `dept_id` bigint(20) DEFAULT NULL COMMENT '机构ID',
  `create_by` varchar(50) DEFAULT NULL COMMENT '创建人',
  `create_time` datetime DEFAULT NULL COMMENT '创建时间',
  `last_update_by` varchar(50) DEFAULT NULL COMMENT '更新人',
  `last_update_time` datetime DEFAULT NULL COMMENT '更新时间',
  `del_flag` tinyint(4) DEFAULT '0' COMMENT '是否删除  -1：已删除  0：正常',
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB AUTO_INCREMENT=34 DEFAULT CHARSET=utf8 COMMENT='用户管理';

INSERT INTO `sys_user` VALUES ('1', 'admin', '超管', null, 'bd1718f058d8a02468134432b8656a86', 'YzcmCZNvbXocrsz9dm8e', 'admin@qq.com', '13612345678', '1', '4', 'admin', '2018-08-14 11:11:11', 'admin', '2018-08-14 11:11:11', '0');
INSERT INTO `sys_user` VALUES ('22', 'liubei', '刘备', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '7', 'admin', '2018-09-23 19:43:00', 'admin', '2019-01-10 11:41:13', '0');
INSERT INTO `sys_user` VALUES ('23', 'zhaoyun', '赵云', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '7', 'admin', '2018-09-23 19:43:44', 'admin', '2018-09-23 19:43:52', '0');
INSERT INTO `sys_user` VALUES ('24', 'zhugeliang', '诸葛亮', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '7', '11', 'admin', '2018-09-23 19:44:23', 'admin', '2018-09-23 19:44:29', '0');
INSERT INTO `sys_user` VALUES ('25', 'caocao', '曹操', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '8', 'admin', '2018-09-23 19:45:32', 'admin', '2019-01-10 17:59:14', '0');
INSERT INTO `sys_user` VALUES ('26', 'dianwei', '典韦', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '10', 'admin', '2018-09-23 19:45:48', 'admin', '2018-09-23 19:45:57', '0');
INSERT INTO `sys_user` VALUES ('27', 'xiahoudun', '夏侯惇', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '8', 'admin', '2018-09-23 19:46:09', 'admin', '2018-09-23 19:46:17', '0');
INSERT INTO `sys_user` VALUES ('28', 'xunyu', '荀彧', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '10', 'admin', '2018-09-23 19:46:38', 'admin', '2018-11-04 15:33:17', '0');
INSERT INTO `sys_user` VALUES ('29', 'sunquan', '孙权', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '10', 'admin', '2018-09-23 19:46:54', 'admin', '2018-09-23 19:47:03', '0');
INSERT INTO `sys_user` VALUES ('30', 'zhouyu', '周瑜', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '11', 'admin', '2018-09-23 19:47:28', 'admin', '2018-09-23 19:48:04', '0');
INSERT INTO `sys_user` VALUES ('31', 'luxun', '陆逊', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '11', 'admin', '2018-09-23 19:47:44', 'admin', '2018-09-23 19:47:58', '0');
INSERT INTO `sys_user` VALUES ('32', 'huanggai', '黄盖', null, 'fd80ebd493a655608dc893a9f897d845', 'YzcmCZNvbXocrsz9dm8e', 'test@qq.com', '13889700023', '1', '11', 'admin', '2018-09-23 19:48:38', 'admin', '2018-09-23 19:49:02', '0');

编写接口

建包

• com.gold.tmall.model
• com.gold.tmall.dao
• com.gold.tmall.sqlmap
• com.gold.tmall.service
• com.gold.tmall.service.impl
• com.gold.tmall.controller

建类

• com.gold.tmall.model.SysUser
• com.gold.tmall.dao.SysUserMapper
• com.gold.tmall.sqlmap.SysUserMapper.xml
• com.gold.tmall.service.SysUserService
• com.gold.tmall.service.impl.SysUserServiceImpl
• com.gold.tmall.controller.SysUserController

编写

• com.gold.tmall.model.SysUser

package com.gold.tmall.model;

import java.util.Date;
import java.util.Objects;

/**
 * @author zhang.fuqing
 * @date 2021-04-16 21:03:14
 */
public class SysUser {

    /**
     * 编号
     */
    private Integer id;

    /**
     * 用户名
     */
    private String name;

    /**
     * 昵称
     */
    private String nickName;

    /**
     * 头像
     */
    private String avatar;

    /**
     * 密码
     */
    private String password;

    /**
     * 加密盐
     */
    private String salt;

    /**
     * 邮箱
     */
    private String email;

    /**
     * 手机号
     */
    private String mobile;

    /**
     * 状态  0：禁用   1：正常
     */
    private Integer status;

    /**
     * 机构ID
     */
    private Integer deptId;

    /**
     * 创建人
     */
    private String createBy;

    /**
     * 创建时间
     */
    private Date createTime;

    /**
     * 更新人
     */
    private String lastUpdateBy;

    /**
     * 更新时间
     */
    private Date lastUpdateTime;

    /**
     * 是否删除  -1：已删除  0：正常
     */
    private Integer delFlag;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getNickName() {
        return nickName;
    }

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

    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 getSalt() {
        return salt;
    }

    public void setSalt(String salt) {
        this.salt = salt;
    }

    public String getEmail() {
        return email;
    }

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

    public String getMobile() {
        return mobile;
    }

    public void setMobile(String mobile) {
        this.mobile = mobile;
    }

    public Integer getStatus() {
        return status;
    }

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

    public Integer getDeptId() {
        return deptId;
    }

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

    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 getLastUpdateBy() {
        return lastUpdateBy;
    }

    public void setLastUpdateBy(String lastUpdateBy) {
        this.lastUpdateBy = lastUpdateBy;
    }

    public Date getLastUpdateTime() {
        return lastUpdateTime;
    }

    public void setLastUpdateTime(Date lastUpdateTime) {
        this.lastUpdateTime = lastUpdateTime;
    }

    public Integer getDelFlag() {
        return delFlag;
    }

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

    @Override
    public String toString() {
        return "SysUser{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", nickName='" + nickName + '\'' +
                ", avatar='" + avatar + '\'' +
                ", password='" + password + '\'' +
                ", salt='" + salt + '\'' +
                ", email='" + email + '\'' +
                ", mobile='" + mobile + '\'' +
                ", status=" + status +
                ", deptId=" + deptId +
                ", createBy='" + createBy + '\'' +
                ", createTime=" + createTime +
                ", lastUpdateBy='" + lastUpdateBy + '\'' +
                ", lastUpdateTime=" + lastUpdateTime +
                ", delFlag=" + delFlag +
                '}';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        SysUser sysUser = (SysUser) o;

        if (!Objects.equals(id, sysUser.id)) {
            return false;
        }
        if (!Objects.equals(name, sysUser.name)) {
            return false;
        }
        if (!Objects.equals(nickName, sysUser.nickName)) {
            return false;
        }
        if (!Objects.equals(avatar, sysUser.avatar)) {
            return false;
        }
        if (!Objects.equals(password, sysUser.password)) {
            return false;
        }
        if (!Objects.equals(salt, sysUser.salt)) {
            return false;
        }
        if (!Objects.equals(email, sysUser.email)) {
            return false;
        }
        if (!Objects.equals(mobile, sysUser.mobile)) {
            return false;
        }
        if (!Objects.equals(status, sysUser.status)) {
            return false;
        }
        if (!Objects.equals(deptId, sysUser.deptId)) {
            return false;
        }
        if (!Objects.equals(createBy, sysUser.createBy)) {
            return false;
        }
        if (!Objects.equals(createTime, sysUser.createTime)) {
            return false;
        }
        if (!Objects.equals(lastUpdateBy, sysUser.lastUpdateBy)) {
            return false;
        }
        if (!Objects.equals(lastUpdateTime, sysUser.lastUpdateTime)) {
            return false;
        }
        return Objects.equals(delFlag, sysUser.delFlag);
    }

    @Override
    public int hashCode() {
        int result = id != null ? id.hashCode() : 0;
        result = 31 * result + (name != null ? name.hashCode() : 0);
        result = 31 * result + (nickName != null ? nickName.hashCode() : 0);
        result = 31 * result + (avatar != null ? avatar.hashCode() : 0);
        result = 31 * result + (password != null ? password.hashCode() : 0);
        result = 31 * result + (salt != null ? salt.hashCode() : 0);
        result = 31 * result + (email != null ? email.hashCode() : 0);
        result = 31 * result + (mobile != null ? mobile.hashCode() : 0);
        result = 31 * result + (status != null ? status.hashCode() : 0);
        result = 31 * result + (deptId != null ? deptId.hashCode() : 0);
        result = 31 * result + (createBy != null ? createBy.hashCode() : 0);
        result = 31 * result + (createTime != null ? createTime.hashCode() : 0);
        result = 31 * result + (lastUpdateBy != null ? lastUpdateBy.hashCode() : 0);
        result = 31 * result + (lastUpdateTime != null ? lastUpdateTime.hashCode() : 0);
        result = 31 * result + (delFlag != null ? delFlag.hashCode() : 0);
        return result;
    }
}

• com.gold.tmall.dao.SysUserMapper.java

package com.gold.tmall.dao;

import java.util.List;

import com.gold.tmall.model.SysUser;

/**
 * @author zhang.fuqing
 * @date 2021-04-16 21:03:14
 */
public interface SysUserMapper {

    /**
     * 根据用户主键删除用户信息
     * @param id 用户主键
     * @return 删除数量
     */
    int deleteByPrimaryKey(Long id);

    /**
     * 插入用户信息
     * @param record 用户信息
     * @return 插入条数
     */
    int insert(SysUser record);

    /**
     * 选择非空字段插入用户信息
     * @param record 用户信息
     * @return 插入条数
     */
    int insertSelective(SysUser record);

    /**
     * 根据用户主键查询用户信息
     * @param id 用户主键
     * @return 用户信息
     */
    SysUser selectByPrimaryKey(Long id);

    /**
     * 根据用户主键更新用户非空信息
     * @param record 被更新用户非空信息
     * @return 更新条数
     */
    int updateByPrimaryKeySelective(SysUser record);

    /**
     * 根据用户主键更新用户信息
     * @param record 被更新信息
     * @return 更新条数
     */
    int updateByPrimaryKey(SysUser record);

    /**
     * 查询全部用户信息
     * @return 用户信息列表
     */
    List<SysUser> findAll();
}

• com.gold.tmall.sqlmap.SysUserMapper.xml (提示：根据实际项目包名替换com.gold.tmall)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.gold.tmall.dao.SysUserMapper">
  <resultMap id="BaseResultMap" type="com.gold.tmall.model.SysUser">
    <id column="id" jdbcType="BIGINT" property="id" />
    <result column="name" jdbcType="VARCHAR" property="name" />
    <result column="nick_name" jdbcType="VARCHAR" property="nickName" />
    <result column="avatar" jdbcType="VARCHAR" property="avatar" />
    <result column="password" jdbcType="VARCHAR" property="password" />
    <result column="salt" jdbcType="VARCHAR" property="salt" />
    <result column="email" jdbcType="VARCHAR" property="email" />
    <result column="mobile" jdbcType="VARCHAR" property="mobile" />
    <result column="status" jdbcType="TINYINT" property="status" />
    <result column="dept_id" jdbcType="BIGINT" property="deptId" />
    <result column="create_by" jdbcType="VARCHAR" property="createBy" />
    <result column="create_time" jdbcType="TIMESTAMP" property="createTime" />
    <result column="last_update_by" jdbcType="VARCHAR" property="lastUpdateBy" />
    <result column="last_update_time" jdbcType="TIMESTAMP" property="lastUpdateTime" />
    <result column="del_flag" jdbcType="TINYINT" property="delFlag" />
  </resultMap>
  <sql id="Base_Column_List">
    id, name, nick_name, avatar, password, salt, email, mobile, status, dept_id, create_by,
    create_time, last_update_by, last_update_time, del_flag
  </sql>
  <select id="selectByPrimaryKey" parameterType="java.lang.Long" resultMap="BaseResultMap">
    select
    <include refid="Base_Column_List" />
    from sys_user
    where id = #{id,jdbcType=BIGINT}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Long">
    delete from sys_user
    where id = #{id,jdbcType=BIGINT}
  </delete>
  <insert id="insert" parameterType="com.gold.tmall.model.SysUser">
    insert into sys_user (id, name, nick_name,
      avatar, password, salt,
      email, mobile, status,
      dept_id, create_by, create_time,
      last_update_by, last_update_time, del_flag
      )
    values (#{id,jdbcType=BIGINT}, #{name,jdbcType=VARCHAR}, #{nickName,jdbcType=VARCHAR},
      #{avatar,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR}, #{salt,jdbcType=VARCHAR},
      #{email,jdbcType=VARCHAR}, #{mobile,jdbcType=VARCHAR}, #{status,jdbcType=TINYINT},
      #{deptId,jdbcType=BIGINT}, #{createBy,jdbcType=VARCHAR}, #{createTime,jdbcType=TIMESTAMP},
      #{lastUpdateBy,jdbcType=VARCHAR}, #{lastUpdateTime,jdbcType=TIMESTAMP}, #{delFlag,jdbcType=TINYINT}
      )
  </insert>
  <insert id="insertSelective" parameterType="com.gold.tmall.model.SysUser">
    insert into sys_user
    <trim prefix="(" suffix=")" suffixOverrides=",">
      <if test="id != null">
        id,
      </if>
      <if test="name != null">
        name,
      </if>
      <if test="nickName != null">
        nick_name,
      </if>
      <if test="avatar != null">
        avatar,
      </if>
      <if test="password != null">
        password,
      </if>
      <if test="salt != null">
        salt,
      </if>
      <if test="email != null">
        email,
      </if>
      <if test="mobile != null">
        mobile,
      </if>
      <if test="status != null">
        status,
      </if>
      <if test="deptId != null">
        dept_id,
      </if>
      <if test="createBy != null">
        create_by,
      </if>
      <if test="createTime != null">
        create_time,
      </if>
      <if test="lastUpdateBy != null">
        last_update_by,
      </if>
      <if test="lastUpdateTime != null">
        last_update_time,
      </if>
      <if test="delFlag != null">
        del_flag,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides=",">
      <if test="id != null">
        #{id,jdbcType=BIGINT},
      </if>
      <if test="name != null">
        #{name,jdbcType=VARCHAR},
      </if>
      <if test="nickName != null">
        #{nickName,jdbcType=VARCHAR},
      </if>
      <if test="avatar != null">
        #{avatar,jdbcType=VARCHAR},
      </if>
      <if test="password != null">
        #{password,jdbcType=VARCHAR},
      </if>
      <if test="salt != null">
        #{salt,jdbcType=VARCHAR},
      </if>
      <if test="email != null">
        #{email,jdbcType=VARCHAR},
      </if>
      <if test="mobile != null">
        #{mobile,jdbcType=VARCHAR},
      </if>
      <if test="status != null">
        #{status,jdbcType=TINYINT},
      </if>
      <if test="deptId != null">
        #{deptId,jdbcType=BIGINT},
      </if>
      <if test="createBy != null">
        #{createBy,jdbcType=VARCHAR},
      </if>
      <if test="createTime != null">
        #{createTime,jdbcType=TIMESTAMP},
      </if>
      <if test="lastUpdateBy != null">
        #{lastUpdateBy,jdbcType=VARCHAR},
      </if>
      <if test="lastUpdateTime != null">
        #{lastUpdateTime,jdbcType=TIMESTAMP},
      </if>
      <if test="delFlag != null">
        #{delFlag,jdbcType=TINYINT},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="com.gold.tmall.model.SysUser">
    update sys_user
    <set>
      <if test="name != null">
        name = #{name,jdbcType=VARCHAR},
      </if>
      <if test="nickName != null">
        nick_name = #{nickName,jdbcType=VARCHAR},
      </if>
      <if test="avatar != null">
        avatar = #{avatar,jdbcType=VARCHAR},
      </if>
      <if test="password != null">
        password = #{password,jdbcType=VARCHAR},
      </if>
      <if test="salt != null">
        salt = #{salt,jdbcType=VARCHAR},
      </if>
      <if test="email != null">
        email = #{email,jdbcType=VARCHAR},
      </if>
      <if test="mobile != null">
        mobile = #{mobile,jdbcType=VARCHAR},
      </if>
      <if test="status != null">
        status = #{status,jdbcType=TINYINT},
      </if>
      <if test="deptId != null">
        dept_id = #{deptId,jdbcType=BIGINT},
      </if>
      <if test="createBy != null">
        create_by = #{createBy,jdbcType=VARCHAR},
      </if>
      <if test="createTime != null">
        create_time = #{createTime,jdbcType=TIMESTAMP},
      </if>
      <if test="lastUpdateBy != null">
        last_update_by = #{lastUpdateBy,jdbcType=VARCHAR},
      </if>
      <if test="lastUpdateTime != null">
        last_update_time = #{lastUpdateTime,jdbcType=TIMESTAMP},
      </if>
      <if test="delFlag != null">
        del_flag = #{delFlag,jdbcType=TINYINT},
      </if>
    </set>
    where id = #{id,jdbcType=BIGINT}
  </update>
  <update id="updateByPrimaryKey" parameterType="com.gold.tmall.model.SysUser">
    update sys_user
    set name = #{name,jdbcType=VARCHAR},
      nick_name = #{nickName,jdbcType=VARCHAR},
      avatar = #{avatar,jdbcType=VARCHAR},
      password = #{password,jdbcType=VARCHAR},
      salt = #{salt,jdbcType=VARCHAR},
      email = #{email,jdbcType=VARCHAR},
      mobile = #{mobile,jdbcType=VARCHAR},
      status = #{status,jdbcType=TINYINT},
      dept_id = #{deptId,jdbcType=BIGINT},
      create_by = #{createBy,jdbcType=VARCHAR},
      create_time = #{createTime,jdbcType=TIMESTAMP},
      last_update_by = #{lastUpdateBy,jdbcType=VARCHAR},
      last_update_time = #{lastUpdateTime,jdbcType=TIMESTAMP},
      del_flag = #{delFlag,jdbcType=TINYINT}
    where id = #{id,jdbcType=BIGINT}
  </update>
  <select id="findAll" resultMap="BaseResultMap">
    select
    <include refid="Base_Column_List" />
    from sys_user
  </select>
</mapper>

• com.gold.tmall.service.SysUserService

package com.gold.tmall.service;

import java.util.List;

import com.gold.tmall.model.SysUser;

/**
 * @author zhang.fuqing
 * @date 2021-04-16 21:03:14
 */
public interface SysUserService {

    /**
     * 查找所有用户
     * @return
     */
    List<SysUser> findAll();

    /**
     * 根据用户主键查询用户信息
     * @param id 用户主键
     * @return 用户信息
     */
    SysUser selectByPrimaryKey(Long id);

    /**
     * 插入用户信息
     * @param record 用户信息
     * @return 插入条数
     */
    int insert(SysUser record);

    /**
     * 根据用户主键删除用户信息
     * @param id 用户主键
     * @return 删除数量
     */
    int deleteByPrimaryKey(Long id);

}

• com.gold.tmall.service.impl.SysUserServiceImpl

package com.gold.tmall.service.impl;

import com.gold.tmall.dao.SysUserMapper;
import com.gold.tmall.model.SysUser;
import com.gold.tmall.service.SysUserService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * @author zhang.fuqing
 * @date 2021-04-16 21:04:14
 */
@Service
public class SysUserServiceImpl implements SysUserService {

    @Resource
    private SysUserMapper sysUserMapper;

    @Override
    public SysUser selectByPrimaryKey(Long id) {
        return sysUserMapper.selectByPrimaryKey(id);
    }

    @Override
    public int insert(SysUser record) {
        return sysUserMapper.insert(record);
    }

    @Override
    public int deleteByPrimaryKey(Long id) {
        return sysUserMapper.deleteByPrimaryKey(id);
    }

    @Override
    public List<SysUser> findAll() {
        return sysUserMapper.findAll();
    }
}

• com.gold.tmall.controller.SysUserController

package com.gold.tmall.controller;

import com.gold.tmall.model.SysUser;
import com.gold.tmall.service.SysUserService;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

/**
 * @author zhang.fuqing
 * @date 2021-04-16 20:59:14
 */
@RestController
public class SysUserController {

    @Resource
    private SysUserService sysUserService;

    @GetMapping(value="/api/user/findAll")
    public Object findAll() {
        return sysUserService.findAll();
    }

    @GetMapping(value="/api/user/{id}")
    public SysUser getUser(@PathVariable Long id) {
        return sysUserService.selectByPrimaryKey(id);
    }
}

• com.gold.tmall.TmallApplication

TmallApplication.java中添加@SpringBootApplication(scanBasePackages={"com.gold.tmall"}) （提示：根据实际包名更改“com.gold.tmall”）

package com.gold.tmall;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author zhang.fuqing
 * @date 2021-04-18 22:04:16
 */
@SpringBootApplication(scanBasePackages={"com.gold.tmall"})
public class TmallApplication {

    public static void main(String[] args) {
        SpringApplication.run(TmallApplication.class, args);
    }

}

打包资源

编译打包时，XML映射文件默认不在打包范围内，出现“Invalid bound statement (not found)”错误。修改pom.xml，在build标签内加入以下内容，代码打包时就会把映射文件也拷贝过去。

<!-- 打包时拷贝MyBatis的映射文件 -->
<resources>
    <resource>
        <directory>src/main/java</directory>
        <includes>
            <include>**/sqlmap/*.xml</include>
        </includes>
        <filtering>false</filtering>
    </resource>
    <resource>
        <directory>src/main/resources</directory>
        <includes>
            <include>**/*.*</include>
        </includes>
        <filtering>true</filtering>
    </resource>
</resources>

完整的pom.xml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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.5</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.gold</groupId>
    <artifactId>gj-tmall</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>gj-tmall</name>
    <description>构建SpringBoot项目</description>

    <properties>
        <java.version>1.8</java.version>
        <mybatis.spring.version>1.3.2</mybatis.spring.version>
    </properties>

    <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>

        <!-- mybatis -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>${mybatis.spring.version}</version>
        </dependency>

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

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>

        <!-- 打包时拷贝MyBatis的映射文件 -->
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/sqlmap/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.*</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

</project>

测试运行

启动应用，分别访问：

http://localhost:8088/api/user/findAll

http://localhost:8088/api/user/1

源码下载

gitee.com/zhang_fuqin…