spring boot 配置 JPA

application.properties的配置

spring.datasource.platform=postgres
spring.datasource.url=jdbc:postgresql://localhost:5432/to_database
spring.datasource.username=postgres
spring.datasource.password=123456789
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults = false

spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
複製程式碼

新建Repository介面，繼承JpaRepository

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

public interface EmployeeInfoRepository extends JpaRepository<EmployeeInfo, Long> {
    List<EmployeeInfo> findByLuckyStatus(String luckyStatus);
    List<EmployeeInfo> findByUmNo(String unNo);
    List<EmployeeInfo> findByOrderByUmNoAsc();

    @Transactional
    @Modifying
    @Query("update EmployeeInfo set luckyStatus = :luckyStatus")
    int updateLuckyStatus(@Param("luckyStatus") String luckyStatus);
}
複製程式碼

新建Entity

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity
public class EmployeeInfo {

    @Id
    @GeneratedValue
    private  Long id;

    private String umNo;

    private String name;

    private String luckyStatus;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getUmNo() {
        return umNo;
    }

    public void setUmNo(String umNo) {
        this.umNo = umNo;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getLuckyStatus() {
        return luckyStatus;
    }

    public void setLuckyStatus(String luckyStatus) {
        this.luckyStatus = luckyStatus;
    }
}
複製程式碼

service呼叫

import com.stock.core.entity.EmployeeInfo;
import com.stock.core.respository.EmployeeInfoRepository;
import com.stock.core.service.EmployeeInfoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Optional;

@Service
public class EmployeeInfoServiceImpl implements EmployeeInfoService {

    @Autowired
    private EmployeeInfoRepository employeeInfoRepository;

    @Override
    public List<EmployeeInfo> getAllEmployeeInfoList() {
        return employeeInfoRepository.findByOrderByUmNoAsc();
    }

    @Override
    public List<EmployeeInfo> getByLuckyStatus(String luckyStatus) {
        return employeeInfoRepository.findByLuckyStatus(luckyStatus);
    }

    @Override
    public int saveEmployeeInfo(String umNo, String name) {
        umNo = umNo.toLowerCase();
        EmployeeInfo employee = null;
        List<EmployeeInfo> list = employeeInfoRepository.findByUmNo(umNo);
        if(null != list && !list.isEmpty()){
            employee = list.get(0);
        }else{
            employee = new EmployeeInfo();
        }
        employee.setUmNo(umNo);
        employee.setName(name);
        employee.setLuckyStatus("0");
        employeeInfoRepository.save(employee);
        return 1;
    }

    @Override
    public int employeeSoLuckiLy(Long id) {
        Optional<EmployeeInfo> optional = employeeInfoRepository.findById(id);
        if(null == optional){
            return 0;
        }
        EmployeeInfo employee = optional.get();
        if(null == employee){
            return 0;
        }
        employee.setLuckyStatus("1");
        employeeInfoRepository.save(employee);
        return 1;
    }

    @Override
    public int setLuckyStatus(String luckyStatus) {
        return employeeInfoRepository.updateLuckyStatus(luckyStatus);
    }
}
複製程式碼