Mybatis 使用记录

下载源码编译

参考 mybatis 源码分析 00：获取源码及 demo 准备

  <groupId>org.mybatis</groupId>
  <artifactId>mybatis</artifactId>
  <version>3.5.15-SNAPSHOT</version>

demo

config.properties

Cause: java.sql.SQLException: No suitable driver found for http://www.example.com (maven搭建mybatis出错)

driver=com.mysql.cj.jdbc.Driver
# 最好不要使用 url 字段
jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
username=root
password=root

Main

将资源文件放到 resource 目录

public static void main(String[] args) throws IOException {
    String resource = "study/mybatis-config.xml";
    InputStream inputStream = Resources.getResourceAsStream(resource);
    SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
    SqlSessionFactory factory = builder.build(inputStream);
    try (SqlSession sqlSession = factory.openSession()) {
      // 获取 mapper，进行查询操作
      UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
      List<User> users = userMapper.getUsers(null, null);
      System.out.println(users);
    }
}