spring boot集成pg

pom.xml

http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0

org.example
pg-test
1.0-SNAPSHOT


8
8
UTF-8




org.mybatis.spring.boot
mybatis-spring-boot-starter
2.1.4


org.postgresql
postgresql
42.2.18


org.projectlombok
lombok
RELEASE
compile


cn.hutool
hutool-all
5.7.16


commons-cli
commons-cli
1.4

application.properties:

spring.profiles.active=dev

spring.datasource.url=jdbc:postgresql://localhost:5432/postgres
spring.datasource.username=postgres
spring.datasource.password=xxxxxx
mybatis.type-aliases-package=com.aaa.model
mybatis.mapper-locations=classpath:mapper/*.xml

model:

import lombok.Data;

import java.time.OffsetDateTime;

@Data
public class FileContent {
private String id;
private OffsetDateTime created_at;
private OffsetDateTime updated_at;
private String content;
private String ip;
private String os;
private String path;
private String status;
}

mapper:

import com.aaa.FileContent;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository
public interface FileContentMapper {
@Select("SELECT * FROM file_content")
List findAll();
}

FileContentService

import com.aaa.mapper.FileContentMapper;
import com.aaa.model.FileContent;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class FileContentService {
private final FileContentMapper fileContentMapper;

public FileContentService(FileContentMapper fileContentMapper) {
this.fileContentMapper = fileContentMapper;
}

public List findAll() {
return fileContentMapper.findAll();
}
}