rpm -qa |grep java

rpm -qa |grep jdk

rpm -qa |grep gcj

javax.net.ssl.SSLException: closing inbound before receiving peer's close_notify
    at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:129)
    at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117)
    at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:308)
    at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:264)
    at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:255)
    at java.base/sun.security.ssl.SSLSocketImpl.shutdownInput(SSLSocketImpl.java:645)
    at java.base/sun.security.ssl.SSLSocketImpl.shutdownInput(SSLSocketImpl.java:624)
    at com.mysql.cj.protocol.a.NativeProtocol.quit(NativeProtocol.java:1312)
    at com.mysql.cj.NativeSession.quit(NativeSession.java:182)
    at com.mysql.cj.jdbc.ConnectionImpl.realClose(ConnectionImpl.java:1750)
    at com.mysql.cj.jdbc.ConnectionImpl.close(ConnectionImpl.java:720)
    at com.zaxxer.hikari.pool.PoolBase.quietlyCloseConnection(PoolBase.java:135)
    at com.zaxxer.hikari.pool.HikariPool.lambda$closeConnection$1(HikariPool.java:441)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:834)

Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method fail

yum install -y ntpdate

ntpdate us.pool.ntp.org

date

java -jar XXXXX.jar --server.port=8080

<!-- SpringBoot Boot Redis -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

ExecutorService executorService = Executors.newFixedThreadPool(1000000);
        executorService.submit(new Runnable() {
            @Override
            public void run() {
                for (int i = 0; i < 150000; i++) {
                    TestUser user = new TestUser();
                    user.setName(RandomUtil.randomString(20));
                    userDao.insert(user);
                    System.out.println("插入数据:" + i);
                }

                System.out.println(Thread.currentThread().getName() + "正在执行任务");

            }
        });