SpringBoot事務管理器

一、配置啓動器

package com.mingde;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@SpringBootApplication		//啓動Spring應用
@EnableTransactionManagement  // 啓註解事務管理,等同於xml配置方式的 <tx:annotation-driven />
public class SpringBootDemo {

	public static void main(String[] args) {
		SpringApplication.run(SpringBootDemo.class, args);
	}
	
}

二、在servlet類中配置事務管理器

package com.mingde.services.impl;

import java.util.List;

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

import com.mingde.dao.StudentDao;
import com.mingde.po.Student;
import com.mingde.services.StudentService;


@Service
public class StudentServiceImpl implements StudentService {

	@Autowired
	private StudentDao studentDao;
	
	@Override
	//@Transactional  只這樣寫默認是隻讀,下面的寫法是用於增刪改
	@Transactional(propagation=Propagation.REQUIRED)	//必須事務,錯誤時事務回滾
	public List<Student> findAll() throws Exception {
		return (List<Student>) studentDao.findAll();
	}
	
	
}


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