SpringBoot AOP如何配置全局事务

package com.gx;

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

@EnableTransactionManagement //开启事务注解功能
@SpringBootApplication
public class Ch09SpringbootTransAnnoApplication {

    public static void main(String[] args) {
        SpringApplication.run(Ch09SpringbootTransAnnoApplication.class, args);
    }

}

package com.gx.service.impl;

import com.gx.service.StudentService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.gx.domain.Student;

@Service
public class StudentServiceImpl implements StudentService {

    @Transactional //使用注解事务
    @Override
    public String addStudent(Student student) {
        //业务方法
    }
}

package com.gx.config;

import org.aspectj.lang.annotation.Aspect;
import org.springframework.context.annotation.Configuration;

@Aspect //定义切面类，把当前类标识为一个切面供容器读取
@Configuration //定义配置类
public class TransactionAdviceConfig {
	//增强方法
}

public TransactionInterceptor() {
    
}

public TransactionInterceptor(TransactionManager ptm, TransactionAttributeSource tas) {
    this.setTransactionManager(ptm);
    this.setTransactionAttributeSource(tas);
}

//事务管理器
@Autowired
private TransactionManager transactionManager;

@Bean
public TransactionInterceptor txAdvice() {
    //声明一个通过方法名字配置事务属性的对象
	NameMatchTransactionAttributeSource source = new NameMatchTransactionAttributeSource();
	//返回一个事务拦截器
    return new TransactionInterceptor(transactionManager, source);
}

//通过map集合给多个方法或者多类方法设置事务属性
public void setNameMap(Map<String, TransactionAttribute> nameMap) {
    nameMap.forEach(this::addTransactionalMethod);
}
//通过方法名称或一类方法名称和事务属性，给一个方法或一类方法设置事务属性
public void addTransactionalMethod(String methodName, TransactionAttribute attr) {
    if (logger.isDebugEnabled()) {
        logger.debug("Adding transactional method [" + methodName + "] with attribute [" + attr + "]");
    }
    if (this.embeddedValueResolver != null && attr instanceof DefaultTransactionAttribute) {
        ((DefaultTransactionAttribute) attr).resolveAttributeStrings(this.embeddedValueResolver);
    }
    this.nameMap.put(methodName, attr);
}

//配置一个事务属性（只读）
RuleBasedTransactionAttribute readOnlyTx = new RuleBasedTransactionAttribute();
//是否只读
readOnlyTx.setReadOnly(true);
//事务传播行为
readOnlyTx.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);

//通过方法名称设置业务方法事务属性
Map<String, TransactionAttribute> txMap = new HashMap<>();
txMap.put("get*", readOnlyTx);

source.setNameMap(txMap);

@Bean
public Advisor txAdviceAdvisor() {
    //增强事务，关联切入点和事务属性
    return new DefaultPointcutAdvisor(切入点, Advice);
}

//配置切入点表达式 : 指定哪些包中的类使用事务，设置为静态类常量
private static final String AOP_POINTCUT_EXPRESSION = "execution (* com.***.service.*.*(..))";

//一下内容放在适配器方法内
//配置事务切入点表达式
AspectJExpressionPointcut pointcut = new AspectJExpressionPointcut();
pointcut.setExpression(AOP_POINTCUT_EXPRESSION);

//增强事务，关联切入点和事务属性
return new DefaultPointcutAdvisor(pointcut, txAdvice());

package com.gx.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.PlatformTransactionManager;
import org.springframework.transaction.TransactionDefinition;
import org.springframework.transaction.TransactionManager;
import org.springframework.transaction.interceptor.*;

import javax.sql.DataSource;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

@Aspect //定义切面类，把当前类标识为一个切面供容器读取
@Configuration //定义配置类
public class TransactionAdviceConfig {

    //事务的超时时间为10秒
    private static final int TX_METHOD_TIMEOUT = 10;

    //配置切入点表达式 : 指定哪些包中的类使用事务
    private static final String AOP_POINTCUT_EXPRESSION = "execution (* com.***.service.*.*(..))";

    //事务管理器
    @Autowired
    private TransactionManager transactionManager;
    /**
     * 声明业务方法的事务属性
     */
    @Bean
    public TransactionInterceptor txAdvice() {

        /**
         * 这里配置只读事务
         */
        RuleBasedTransactionAttribute readOnlyTx = new RuleBasedTransactionAttribute();
        readOnlyTx.setReadOnly(true);//是否只读
        readOnlyTx.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);//事务的传播行为

        /**
         * 必须带事务
         * 当前存在事务就使用当前事务，当前不存在事务,就开启一个新的事务
         */
        RuleBasedTransactionAttribute requiredTx = new RuleBasedTransactionAttribute();
        //检查型异常也回滚
        requiredTx.setRollbackRules(
                Collections.singletonList(new RollbackRuleAttribute(Exception.class)));
        requiredTx.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
        requiredTx.setTimeout(TX_METHOD_TIMEOUT);

        /**
         * 无事务地执行，挂起任何存在的事务
         */
        RuleBasedTransactionAttribute noTx = new RuleBasedTransactionAttribute();
        noTx.setPropagationBehavior(TransactionDefinition.PROPAGATION_NOT_SUPPORTED);

        /**
         * 设置方法对应的事务
         */
        Map<String, TransactionAttribute> txMap = new HashMap<>();
        //只读事务
        txMap.put("get*", readOnlyTx);
        txMap.put("query*", readOnlyTx);
        txMap.put("find*", readOnlyTx);
        txMap.put("list*", readOnlyTx);
        txMap.put("count*", readOnlyTx);
        txMap.put("exist*", readOnlyTx);
        txMap.put("search*", readOnlyTx);
        txMap.put("fetch*", readOnlyTx);
        //无事务
        txMap.put("noTx*", noTx);
        //写事务
        txMap.put("add*", requiredTx);
        txMap.put("save*", requiredTx);
        txMap.put("insert*", requiredTx);
        txMap.put("update*", requiredTx);
        txMap.put("modify*", requiredTx);
        txMap.put("delete*", requiredTx);
		
        NameMatchTransactionAttributeSource source = new NameMatchTransactionAttributeSource();
        source.setNameMap(txMap);
        
		//返回事务拦截器
        return new TransactionInterceptor(transactionManager, source);
    }

    @Bean
    public Advisor txAdviceAdvisor() {
        //配置事务切入点表达式
        AspectJExpressionPointcut pointcut = new AspectJExpressionPointcut();
        pointcut.setExpression(AOP_POINTCUT_EXPRESSION);
        //增强事务，关联切入点和事务属性
        return new DefaultPointcutAdvisor(pointcut, txAdvice());
    }
}