Question

通过Junit测试，我调用了一个调用currentSession()来获取会话对象的方法。

public final ThreadLocal session = new ThreadLocal();
    public synchronized Session currentSession() {
        Session s = (Session) session.get();
        // Open a new Session, if this thread has none yet

        if (s == null || !s.isOpen()) {
            s = sessionFactory.openSession();
            // Store it in the ThreadLocal variable
            session.set(s);
        }
        return s;
    }

代码挂起s = sessionFactory.openSession() ;。下面是我的hibernate.properties和sessionFactory代码的初始化。我错过了什么？

hibernate.connection.driver_class=com.mysql.jdbc.Driver
hsqldb.write_delay_millis=0
shutdown=true
hibernate.connection.pool_size=2
hibernate.dialect=org.hibernate.dialect.MySQLInnoDBDialect
hibernate.connection.provider_class=org.hibernate.connection.C3P0ConnectionProvider
hibernate.c3p0.acquire_increment=1 
hibernate.c3p0.idle_test_period=100 
hibernate.c3p0.max_size=100 
hibernate.c3p0.max_statements=0 
hibernate.c3p0.min_size=10 
hibernate.c3p0.timeout=1800
hibernate.c3p0.preferredTestQuery=select 1
hibernate.c3p0.testConnectionOnCheckout=true
hibernate.c3p0.testConnectionOnCheckout=true

初始化sessionFactory代码

synchronized (this) {
            if (sessionFactory == null) {
                try {
                    String connection = "jdbc:mysql://"
                            + Globals.DBSERVER.trim()
                            + "/mydb?autoReconnect=true&failOverReadOnly=false&maxReconnects=10";
                    log.debug("Connection URL " + connection);
                    Configuration configuration = new Configuration();
                    configuration                               
                            .setProperty("hibernate.connection.username",
                                    Globals.DB_USER_NAME.trim())
                            .setProperty("hibernate.connection.password",
                                    Globals.DB_PASSWORD.trim())    
                    ;
                    configuration.configure();

                    sessionFactory = configuration
                            .buildSessionFactory(new ServiceRegistryBuilder()
                                    .applySettings(
                                            configuration.getProperties())
                                    .buildServiceRegistry());

                } catch (Exception e) {
                    log.fatal("Unable to create SessionFactory for Hibernate");
                    log.fatal(e.getMessage());
                    log.fatal(e);
                    e.printStackTrace();
                }
            }

            if (sessionFactory == null) {
                log.fatal("Hibernate not configured.");
                System.exit(0);
            }
            log.info("Hibernate Configured Successfully!!!");
        }

Answer 1

我正在调用后台异步线程来进行数据库写入。在后台线程完成对数据库的写入之前，Junit正在退出。

我放了一个timeUnit，在flushData之后等待，它将任务排队等待写入，并且它有效。

@Test
    public void test() {
        logWrapper.flushData();
        System.out.println("GeneralLogReadWriteTest test()");
        try {
            TimeUnit.SECONDS.sleep(5);
        } catch (InterruptedException e) {
            System.out.println("InterruptedException e");
        }
    }

Hibernate，sessionFactory.openSession正在挂起

1 个答案: