springBoot事物

　　在使用注解的时候，需要注意的是，只能写在@Service的类中才能生效。

1.事物

　　只是需要一个注解即可

2.事物程序

 package com.caojun.springboot;

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

 @Service
 public class TransactionService {

     @Autowired
     private StudentResitory studentResitory;

     @Transactional
     public void insertTwo(){
         Student student1=new Student();
         student1.setName("AA");
         student1.setAge(33);
         studentResitory.save(student1);

         Student student2=new Student();
         student2.setName("BB");
         student2.setAge(44);
         studentResitory.save(student2);
     }
 }

3.验证程序

 @RestController
 public class StudentController {

     @Autowired
     private StudentResitory studentResitory;

     @Autowired
     private TransactionService transactionService;

     /**
      * 数据库事物
      */
     @GetMapping(value = "/hello/insertTwo")
     public void insertStu(){
         transactionService.insertTwo();
     }

4.效果