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事务管理

如何使用事务​

加 @Transactional 注解就行了​

举个例子​

创建Service​

注意加 @Service 注解

package cn.asdasd.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.transaction.Transactional;

@Service
public class GirlService {

    @Autowired
    private GirlRepository girlRepository;

    @Transactional
    public void insertTwo(){
        Girl girlA = new Girl();
        girlA.setId(1);
        girlA.setCupSize("A");
        girlA.setAge(20);
        girlRepository.save(girlA);

        Girl girlB = new Girl();
        girlB.setId(2);
        girlB.setCupSize("BBBBBB");
        girlB.setAge(22);
        girlRepository.save(girlB);

    }
}

Controller 里调用​

注意 不要忘记 @Autowired

@Autowired
private GirlService girlService;

package cn.asdasd.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
public class GirlController {

    @Autowired
    private GirlRepository girlRepository;

    @Autowired
    private GirlService girlService;

    @PostMapping(value = "/girls/two")
    public void girlTwo() {
        girlService.insertTwo();
    }

}