springboot整合JDBC [数据库教程]

• Z时代
• 2024-01-10
• 分类：综合

前提：配置数据库连接(见前面)

一、步骤

1、导包

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

2、操作

    @Autowired
private JdbcTemplate jdbcTemplate;
    @Test
// 查
publicvoid jdbcTest(){
        String sql = "select * from blog";
        List<Map<String, Object>> maps = jdbcTemplate.queryForList(sql);
        System.out.println(maps);
    }
//  插入
    @Test
publicvoid insertJDBC(){
        String sql = "insert into blog(id, title, author, views) values(20, ‘ak‘, ‘tt‘, 100)";
        jdbcTemplate.update(sql);
    }
    @Test
// 修改
publicvoid updateJDBC(){
        String sql = "update blog set title = ?, author = ?, views =?  where id=" + 20;
        Object[] objects = new Object[3];
        objects[0] = "wt";
        objects[1] = "wt";
        objects[2] = 100000;
        jdbcTemplate.update(sql, objects);
    }
    @Test
// 删除
publicvoid deleteJDBC(){
        String sql = "delete from blog where id = ?";
        Object[] objects = new Object[1];
        objects[0] = 20;
        jdbcTemplate.update(sql, objects);
    }

springboot 整合JDBC

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