Spring Boot ---- jdbc and data source integration

Integration JDBC

1, the basic operation

1.1 Creating project

 

1.2 the configuration parameters (the application.properties)

spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.url=jdbc:mysql://localhost:3306/javas1?serverTimezone=UTC
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

1.3 Test

    @Autowired
    DataSource dataSource;
    @Test
    public void test1() throws SQLException {
        System.out.println(dataSource.getClass());
        System.out.println(dataSource.getConnection());
    }

　　

2, operation of the database (use the JdbcTemplate)

    @Autowired
    JdbcTemplate jdbcTemplate;
    @Test
    public void test2(){
        List<User> query = jdbcTemplate.query("select * from t_user", BeanPropertyRowMapper.newInstance(User.class));
        System.out.println(query);
    }