SQLite使用

一、概述

SQLite 只需要使用单个db文件即可，不用建立数据库服务。非常简单易用，适用于小型单体项目。

菜鸟教程-SQLite 教程

https://www.runoob.com/sqlite/sqlite-tutorial.html

二、使用

使用Navicat可以直接新建SQLite数据库。

三、集成 SpringBoot

1、项目案例

（1）application.yml

spring:
  datasource:
    driver-class-name: org.sqlite.JDBC
    # 路径：db/mydb.bd
    #url: jdbc:sqlite:db/mydb.db
    # 路径：src/main/resources/db/mydb.db
    #url: jdbc:sqlite::resource:db/mydb.db
    url: jdbc:sqlite:D:/Program Files/sqlite3/mydb.db
    username:
    password:

mybatis:
  mapper-locations:
    - classpath:mapper/*.xml

（2）pom.xml

        <dependency>
            <groupId>org.xerial</groupId>
            <artifactId>sqlite-jdbc</artifactId>
            <version>3.36.0.3</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.2</version>
        </dependency>

（3）student.xml

src/main/resources/mapper/student.xml

<?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="student">
	<resultMap id="BaseResultMap" type="java.util.HashMap"></resultMap>
	<parameterMap id="BaseParameterMap" type="java.util.HashMap"></parameterMap>

	<select id="findStudent" resultMap="BaseResultMap" parameterMap="BaseParameterMap">
		select
			"id",
			"name"
		from
			student
		where
			id = #{id}
	</select>

</mapper>

（4）测试代码

src/test/java/com/scy/sqlite/SqliteApplicationTests.java

package com.scy.sqlite;

import org.apache.ibatis.session.SqlSession;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

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

@SpringBootTest
class SqliteApplicationTests {
    

    @Resource
    SqlSession sqlSession;

    @Test
    void contextLoads() {
    
        Map map = new HashMap();
        map.put("id", "2");
        List<Object> studentList = sqlSession.selectList("student.findStudent", map);
        System.out.println(studentList);
    }

}