SpringBoot2.x 全局事务配置

首先依旧还是在启动类上加上事务开启注解@EnableTransactionManagement
如下

@SpringBootApplication(scanBasePackages = "com.xxx")
@MapperScan("com.xxx.service.db.repository")
@EnableDiscoveryClient
@EnableFeignClients
@EnableTransactionManagement
public class MthCmsServiceApplication {

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

}

AOP依赖：

<dependency>  
      <groupId>org.springframework.boot</groupId>  
     <artifactId>spring-boot-starter-aop</artifactId>  
</dependency> 

全局事务管理配置如下，复制粘贴即用，但是得注意一点，增强的方法命名必须服从下面配置的规范

package com.xxx.service.config;

import org.aspectj.lang.annotation.Aspect;
import org.springframework.aop.Advisor;
import org.springframework.aop.aspectj.AspectJExpressionPointcut;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.TransactionDefinition;
import org.springframework.transaction.TransactionManager;
import org.springframework.transaction.interceptor.NameMatchTransactionAttributeSource;
import org.springframework.transaction.interceptor.RollbackRuleAttribute;
import org.springframework.transaction.interceptor.RuleBasedTransactionAttribute;
import org.springframework.transaction.interceptor.TransactionInterceptor;
import java.util.Collections;

/**
 * @description 全局事务管理
 */
@Aspect
@Configuration
public class CmsTransactionConfig {


    private static final String AOP_POINTCUT_EXPRESSION = "execution(* com.xxx.service.web.service.*.*(..))";
    private static final String[] REQUIRED_RULE_TRANSACTION = {"insert*", "create*", "add*", "save*","modify*", "update*", "del*", "delete*"};
    private static final String[] READ_RULE_TRANSACTION = {"select*", "get*", "query*", "search*", "count*","detail*", "find*"};

    @Autowired
    private TransactionManager transactionManager;

    @Bean
    public TransactionInterceptor txAdvice() {
        RuleBasedTransactionAttribute REQUIRED = new RuleBasedTransactionAttribute();
        REQUIRED.setRollbackRules(Collections.singletonList(new RollbackRuleAttribute(Exception.class)));
        REQUIRED.setIsolationLevel(TransactionDefinition.ISOLATION_READ_COMMITTED);
        REQUIRED.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
        RuleBasedTransactionAttribute READONLY = new RuleBasedTransactionAttribute();
        READONLY.setRollbackRules(Collections.singletonList(new RollbackRuleAttribute(Exception.class)));
        READONLY.setIsolationLevel(TransactionDefinition.ISOLATION_READ_COMMITTED);
        READONLY.setPropagationBehavior(TransactionDefinition.PROPAGATION_SUPPORTS);
        READONLY.setReadOnly(true);
        NameMatchTransactionAttributeSource source = new NameMatchTransactionAttributeSource();

        for (String s : REQUIRED_RULE_TRANSACTION) {
            source.addTransactionalMethod(s, REQUIRED);
        }

        for (String s : READ_RULE_TRANSACTION) {
            source.addTransactionalMethod(s, READONLY);
        }

        return new TransactionInterceptor(transactionManager, source);
    }

    @Bean
    public Advisor txAdviceAdvisor(TransactionInterceptor txAdvice) {
        AspectJExpressionPointcut pointcut = new AspectJExpressionPointcut();
        pointcut.setExpression(AOP_POINTCUT_EXPRESSION);
        return new DefaultPointcutAdvisor(pointcut, txAdvice);
    }
}

总结：
1、首先在使用事务之前，要在启动类里面引入注解 @EnableTransactionManagement
2、使用全局事务的时候，方法命名一定要在上述规范中，切勿出现奇葩命名