在Postgres数据库中创建一张表。
CREATE TABLE shared.my_data (
id serial PRIMARY KEY,
my_config jsonb
);
将数据插入表中
INSERT into shared.my_data (id, my_config) VALUES( 1,
'{"useTime": true,
"manualUnassign": false,
"require":true,
"blockTime":10,
"additionalHours":1,
"availablegroups":[10,20,30]
}')
检查表中的数据：
select * from shared.tenant_data
Spring Boot Java项目
Java版本：11
Spring版本：2.7.1
POM.xml文件中的Maven依赖。
对于Postgres JOSNB，我们需要特定的
vladmihalcea依赖版本2.14.0
<dependency>
<groupId>com.vladmihalcea</groupId>
<artifactId>hibernate-types-52</artifactId>
<version>2.14.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.7.1</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>2.7.1</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.24</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.7.1</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
JSON对象类
import com.fasterxml.jackson.annotation.JsonProperty;
import java.util.List;
public class MyConfig {
@JsonProperty("useTime")
private boolean useTime;
@JsonProperty("manualUnassign")
private boolean manualUnassign;
@JsonProperty("require")
private boolean require;
@JsonProperty("additionalHours")
private int additionalHours;
@JsonProperty("blockTime")
private int blockTime;
@JsonProperty("availableGroup")
private List<Integer> availableGroup;
}
[实体]根对象用于封装表行中的列
import com.vladmihalcea.hibernate.type.json.JsonBinaryType;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.hibernate.annotations.Type;
import org.hibernate.annotations.TypeDef;
import javax.persistence.*;
@Data
@Entity
@Table(name = "my_data", schema = "shared")
@Builder
@NoArgsConstructor
@AllArgsConstructor
@TypeDef(name = "jsonb", typeClass = JsonBinaryType.class)
public class MyData {
@Id
@GeneratedValue(strategy= GenerationType.IDENTITY)
private Long id;
@Type(type = "jsonb")
@Column(columnDefinition = "jsonb")
private MyConfig myConfig;
}
仓储层
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface MyDataRepo extends JpaRepository<MyData, Long> {
}
服务层
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class MyDataService {
@Autowired
private MyDataRepo myDataRepo;
public List<MyData> getAllMyspecificData(){
List<MyData> allMyData = myDataRepo.findAll();
return allMyData;
}
}
REST 端点
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.List;
@RestController
@RequestMapping(path = "/my")
public class MyResouce {
@Autowired
MyDataService myDataService;
@GetMapping("/data")
public ResponseEntity<Object> getAllMyData() {
List<MyData> myDataList =
myDataService.getAllMyspecificData();
return new ResponseEntity<>(myDataList, HttpStatus.OK);
}
}
