// 事务传播为Propagation.REQUIRES_NEW
@Transactional(isolation = Isolation.DEFAULT, propagation = Propagation.REQUIRES_NEW)
public void read() throws Exception {
User user = userMapper.findByUserName("first");
System.out.println(
String.format(
"当前readTran线程%s,读取用户信息完成，用户%s，时间戳%tc", Thread.currentThread(), user, new Date()));
}
@Transactional(isolation = Isolation.SERIALIZABLE, propagation = Propagation.REQUIRES_NEW)
public void readBatch() throws Exception {
List<User> users1 = userMapper.findByAge("10");
System.out.println(
String.format(
"当前readBatch线程%s,读取用户信息，用户%s，时间戳%tc",
Thread.currentThread(), ArrayUtils.toString(users1.toArray()), new Date()));
try {
TimeUnit.SECONDS.sleep(5);
} catch (InterruptedException e) {
e.printStackTrace();
}
List<User> users2 = userMapper.findByAge("10");
System.out.println(
String.format(
"当前readBatch线程%s,读取用户信息完成，用户%s，时间戳%tc",
Thread.currentThread(), ArrayUtils.toString(users2.toArray()), new Date()));
}
@Transactional(isolation = Isolation.DEFAULT, propagation = Propagation.REQUIRES_NEW)
public void write() throws Exception {
User user = userMapper.findByUserName("first");
System.out.println(
String.format("当前write线程%s,更新用户信息，用户%s，时间戳%tc", Thread.currentThread(), user, new Date()));
user.setAge("100");
userMapper.updateUserById(user);
System.out.println(
String.format(
"当前write线程%s,更新用户信息完成，用户%s，时间戳%tc", Thread.currentThread(), user, new Date()));
try {
TimeUnit.SECONDS.sleep(2);
} catch (InterruptedException e) {
e.printStackTrace();
}
user = userMapper.findByUserName("first");
System.out.println(
String.format("当前write线程%s,更新用户信息，用户%s，时间戳%tc", Thread.currentThread(), user, new Date()));
}
// 事务传播为Propagation.REQUIRES_NEW
@Transactional(isolation = Isolation.DEFAULT, propagation = Propagation.REQUIRES_NEW)
public void readTran() throws Exception {
System.out.println(
String.format("当前readTran线程%s,读取用户信息，时间戳%tc", Thread.currentThread(), new Date()));
try {
TimeUnit.SECONDS.sleep(5);
} catch (InterruptedException e) {
e.printStackTrace();
}
User user = userMapper.findByUserName("first");
System.out.println(
String.format(
"当前readTran线程%s,读取用户信息完成，用户%s，时间戳%tc", Thread.currentThread(), user, new Date()));
}
