public interface PlatformTransactionManager {
 TransactionStatus getTransaction(TransactionDefinition definition) throws TransactionException;
 void commit(TransactionStatus status) throws TransactionException;
 void rollback(TransactionStatus status) throws TransactionException;
}

public class TransactionTemplate extends DefaultTransactionDefinition
  implements TransactionOperations, InitializingBean {
 protected final Log logger = LogFactory.getLog(getClass());
 private PlatformTransactionManager transactionManager;
 public TransactionTemplate() {
 }
 public TransactionTemplate(PlatformTransactionManager transactionManager) {
  this.transactionManager = transactionManager;
 }
 public TransactionTemplate(PlatformTransactionManager transactionManager, TransactionDefinition transactionDefinition) {
  super(transactionDefinition);
  this.transactionManager = transactionManager;
 }
 public void setTransactionManager(PlatformTransactionManager transactionManager) {
  this.transactionManager = transactionManager;
 }
 public PlatformTransactionManager getTransactionManager() {
  return this.transactionManager;
 }
 @Override
 public void afterPropertiesSet() {
  if (this.transactionManager == null) {
   throw new IllegalArgumentException("Property 'transactionManager' is required");
  }
 }
 @Override
 public <T> T execute(TransactionCallback<T> action) throws TransactionException {
  if (this.transactionManager instanceof CallbackPreferringPlatformTransactionManager) {
   return ((CallbackPreferringPlatformTransactionManager) this.transactionManager).execute(this, action);
  }
  else {
   TransactionStatus status = this.transactionManager.getTransaction(this);
   T result;
   try {
    result = action.doInTransaction(status);
   }
   catch (RuntimeException ex) {
    // Transactional code threw application exception -> rollback
    rollbackOnException(status, ex);
    throw ex;
   }
   catch (Error err) {
    // Transactional code threw error -> rollback
    rollbackOnException(status, err);
    throw err;
   }
   catch (Throwable ex) {
    // Transactional code threw unexpected exception -> rollback
    rollbackOnException(status, ex);
    throw new UndeclaredThrowableException(ex, "TransactionCallback threw undeclared checked exception");
   }
   this.transactionManager.commit(status);
   return result;
  }
 }
 private void rollbackOnException(TransactionStatus status, Throwable ex) throws TransactionException {
  logger.debug("Initiating transaction rollback on application exception", ex);
  try {
   this.transactionManager.rollback(status);
  }
  catch (TransactionSystemException ex2) {
   logger.error("Application exception overridden by rollback exception", ex);
   ex2.initApplicationException(ex);
   throw ex2;
  }
  catch (RuntimeException ex2) {
   logger.error("Application exception overridden by rollback exception", ex);
   throw ex2;
  }
  catch (Error err) {
   logger.error("Application exception overridden by rollback error", ex);
   throw err;
  }
 }
}

public interface TransactionCallback<T> {
 T doInTransaction(TransactionStatus status);
}

 <!--事务管理器 -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  <property name="dataSource" ref="dataSource"/>
 </bean>

 <!--编程式事务，推荐使用TransactionTemplate-->
 <bean id="transactionTemplate"
   class="org.springframework.transaction.support.TransactionTemplate">
  <property name="transactionManager" ref="transactionManager"/>
 </bean>

@Autowired
 private TransactionTemplate transactionTemplate;
 public int insertUser2(final User user) {
  Integer i= (Integer) this.transactionTemplate.execute(new TransactionCallback() {
   public Object doInTransaction(TransactionStatus transactionStatus) {
    int i = userMapper.insertUser(user);
    if (i > 0) {
     System.out.println("success");
    }
    int j = 10 / 0;
    return i;
   }
  });
  return i;
 }

 <!--事务管理器 -->
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  <property name="dataSource" ref="dataSource"/>
 </bean>
 <!-- 使用注解事务，需要添加Transactional注解属性 -->
 <tx:annotation-driven transaction-manager="transactionManager"/>
 <!--启用最新的注解器、映射器-->
 <mvc:annotation-driven/>

 @Transactional
 public int insertUser(User user) {
  int i = userMapper.insertUser(user);
  if (i > 0) {
   System.out.println("success");
  }
  int j = 10 / 0;
  return i;
 }