springboot系列九 Spring-Data-JDBC
阿新 • • 發佈:2018-12-03
DEMO
依賴
<dependencies> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> </dependencies>
配置
server: port: 8080 spring: datasource: url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8 username: root password: root driver-class-name: com.mysql.cj.jdbc.Driver # mysql8推薦使用cj.jdbc, com.mysql.jdbc.Driver不推薦使用了 #資料庫連線池預設使用 tomcat-jdbc tomcat: max-idle: 10 min-idle: 1 initial-size: 1
實體
@Data
public class User {
private int id;
private String name;
private int age;
private String phoneNumber;
private boolean available;
private Date createTime = new Date();
}
使用jdbc
@RestController @RequestMapping("/user") public class UserResource { @Autowired private JdbcTemplate jdbcTemplate; @GetMapping("") public List list(){ List<Map<String, Object>> list = jdbcTemplate.queryForList("select * from user"); return list; } @PostMapping("") public User add(@RequestBody User user){ String sql = "insert into user(name,age) values(?, ?)"; jdbcTemplate.update(connection -> { PreparedStatement ps= connection.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS); ps.setString(1,user.getName()); ps.setInt(2,user.getAge()); return ps; }); return user; } }
測試
當前資料庫資料:
查詢
GET http://localhost:8080/user
返回
[
{
"id": 1,
"name": "張三",
"phone_number": "15500000001",
"create_time": "2018-12-02T12:20:32.000+0000",
"age": 20,
"available": false
},
{
"id": 2,
"name": "李四",
"phone_number": "15500000002",
"create_time": "2018-12-01T13:04:56.000+0000",
"age": 0,
"available": false
},
{
"id": 3,
"name": "王五",
"phone_number": "15500000003",
"create_time": "2018-12-01T13:05:02.000+0000",
"age": 0,
"available": false
}
]
新增
POST http://localhost:8080/user
請求資料:
{
"name":"add1",
"age":100
}
再次查詢GET http://localhost:8080/user
返回:
[
{
"id": 1,
"name": "張三",
"phone_number": "15500000001",
"create_time": "2018-12-02T12:20:32.000+0000",
"age": 20,
"available": false
},
{
"id": 2,
"name": "李四",
"phone_number": "15500000002",
"create_time": "2018-12-01T13:04:56.000+0000",
"age": 0,
"available": false
},
{
"id": 3,
"name": "王五",
"phone_number": "15500000003",
"create_time": "2018-12-01T13:05:02.000+0000",
"age": 0,
"available": false
},
{
"id": 6,
"name": "add1", #新加的資料
"phone_number": "1001",
"create_time": "2018-12-03T08:27:46.000+0000",
"age": 100,
"available": false
}
]