SpringBoot 3.x整合Fluent Mybatis极简流程-编程知识

SpringBoot 3.x整合Fluent Mybatis极简流程

此为基础配置，不包括其他高级配置，需要其他高级配置请查阅官方文档：[fluent mybatis特性总览 - Wiki - Gitee.com](https://gitee.com/fluent-mybatis/fluent-mybatis/wikis/fluent mybatis特性总览)

版本信息

Spring Boot 版本：3.1.2
Fluent Mybatis 版本：1.9.9
mybatis-spring-boot-starter 版本：3.0.0
JDK 版本：JDK17

Maven依赖

spring boot依赖

    <parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>3.1.2</version><relativePath/> </parent><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency>
</dependencies>

Fluent Mybatis和MySQL数据库依赖


<properties><fluent-mybatis.version>1.9.9</fluent-mybatis.version>
</properties>
<dependencies><!--mysql驱动--><dependency><groupId>com.mysql</groupId><artifactId>mysql-connector-j</artifactId><scope>runtime</scope></dependency><!-- 引入fluent-mybatis 运行依赖包, scope为compile --><dependency><groupId>com.github.atool</groupId><artifactId>fluent-mybatis</artifactId><version>${fluent-mybatis.version}</version><exclusions><exclusion><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId></exclusion><exclusion><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId></exclusion></exclusions></dependency><!-- 引入fluent-mybatis-processor, scope设置为provider 编译需要，运行时不需要 --><dependency><groupId>com.github.atool</groupId><artifactId>fluent-mybatis-processor</artifactId><scope>provided</scope><version>${fluent-mybatis.version}</version></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>3.0.0</version></dependency>
</dependencies>

添加配置类

import cn.org.atool.fluent.mybatis.spring.MapperFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;@Configuration
public class MybatisConfig {@Beanpublic MapperFactory mapperFactory() {return new MapperFactory();}}

配置扫描

在启动类添加mapper路径，注意Fluent的Mapper是不需要手动编写的，直接编译生成即可，在 target 目录下可以看到生成出来的文件。

@MapperScan("com.example.fluent.mapper")

创建表

创建 test测试库，并创建 person表。

CREATE TABLE `person` (`id` int NOT NULL AUTO_INCREMENT,`first_name` varchar(255) NOT NULL,`last_name` varchar(255) NOT NULL,`email` varchar(255) NOT NULL,`age` int NOT NULL,PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=10000001 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;INSERT INTO `test`.`person` (`id`, `first_name`, `last_name`, `email`, `age`) VALUES (1, 'First0000001', 'Last0000001', 'email0000001@example.com', 92);
INSERT INTO `test`.`person` (`id`, `first_name`, `last_name`, `email`, `age`) VALUES (2, 'First0000002', 'Last0000002', 'email0000002@example.com', 33);
INSERT INTO `test`.`person` (`id`, `first_name`, `last_name`, `email`, `age`) VALUES (3, 'First0000003', 'Last0000003', 'email0000003@example.com', 19);

添加实体类

import cn.org.atool.fluent.mybatis.annotation.FluentMybatis;
import cn.org.atool.fluent.mybatis.annotation.TableId;
import cn.org.atool.fluent.mybatis.base.IEntity;
import lombok.Data;@FluentMybatis(table = "person")
@Data
public class Person implements IEntity {@TableId //主键，不指定默认主键自增private Long id;private String firstName;private String lastName;private String email;private int age;}

添加测试接口

@RestController
public class PersonController {@Resourceprivate PersonMapper personMapper;@GetMapping("/data")public Object getData() {Person person = personMapper.findById(1); //查询ID为1的数据return person;}}

配置文件添加数据库连接信息

server:port: 8002 //指定8002端口运行spring:datasource:type: com.zaxxer.hikari.HikariDataSourcedriver-class-name: com.mysql.cj.jdbc.Driverurl: jdbc:mysql://192.168.2.6:3306/test?useSSL=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&allowMultiQueries=trueusername: rootpassword: root