小编bab*_*ira的帖子

Hibernate 4多租户和Spring 3 Hibernate

所有

我正在评估Hibernate 4(4.1.0)和Spring 3(3.1.0)中出现的Multi-Tenancy功能,但是无法使用HibernateTransaction设置.我已经定义了如下设置.

LocalSessionFactoryBean:

@org.springframework.context.annotation.Configuration
public class Configuration {

    @Inject private DataSource dataSource;
    @Inject private MultiTenantConnectionProvider multiTenantConnectionProvider;

    @Bean
    public LocalSessionFactoryBean sessionFactory() throws IOException{
        LocalSessionFactoryBean bean = new LocalSessionFactoryBean();
        bean.setDataSource(dataSource);
        bean.setPackagesToScan("com");
        bean.getHibernateProperties().put("hibernate.multi_tenant_connection_provider", multiTenantConnectionProvider);
        bean.getHibernateProperties().put("hibernate.multiTenancy", "SCHEMA");
        bean.getHibernateProperties().put("hibernate.tenant_identifier_resolver", new CurrentTenantIdentifierResolverImpl());
        bean.setConfigLocation(new ClassPathResource("/hibernate.cfg.xml"));
        return bean;
    }

}
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Configuration.xml:

<context:component-scan base-package="com.green" />


    <context:annotation-config />

    <!-- Enable annotation style of managing transactions -->
    <tx:annotation-driven transaction-manager="transactionManager" />

    <!-- Declare a datasource that has pooling capabilities -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
        destroy-method="close" p:driverClass="${app.jdbc.driverClassName}"
        p:jdbcUrl="${app.jdbc.url}" p:user="${app.jdbc.username}" p:password="${app.jdbc.password}"
        p:acquireIncrement="5" p:idleConnectionTestPeriod="60" …
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java spring hibernate

11
推荐指数
1
解决办法
8504
查看次数

时间戳列上的MySQL索引不用于大日期范围

我有桌子

+-------------------+----------------+------+-----+---------------------+-----------------------------+
| Field             | Type           | Null | Key | Default             | Extra                       |
+-------------------+----------------+------+-----+---------------------+-----------------------------+
| id                | bigint(20)     | NO   | PRI | NULL                | auto_increment              |
| runtime_id        | bigint(20)     | NO   | MUL | NULL                |                             |
| place_id          | bigint(20)     | NO   | MUL | NULL                |                             |
| amended_timestamp | varchar(50)    | YES  |     | NULL                |                             |
| applicable_at     | timestamp      | NO   |     | CURRENT_TIMESTAMP   | on update CURRENT_TIMESTAMP |
| schedule_time …
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mysql optimization

7
推荐指数
1
解决办法
8437
查看次数

当前使用夏令时的java时间

我偶然发现了这段代码,以便在美国东部时间获得夏令时.它似乎工作正常,当在互联网上检查时显示在提供当前时间在美国东部时间夏令时的网站.

  SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MMM-dd HH:mm:ss.SSS"); 
  dateFormat.setTimeZone(TimeZone.getTimeZone("EST5EDT")); 
  System.out.println(dateFormat.format(new Date()));
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我只是想确认一下,有没有人之前使用过这样的东西,或者有更好的方法来实现同样的目标.由于约束我无法使用Joda库.

提前致谢.

java time date

6
推荐指数
1
解决办法
5552
查看次数

Hibernate hql inner加入eager fetch on one to many,获取冗余的父对象

我有如下实体

类ProgressNote

@Entity
public class ProgressNote implements Serializable{

    @Id
    private NotesKey notesKey = new NotesKey();

    private Set<PatientObjective> patientObjectives;

    public NotesKey getNotesKey() {
        return notesKey;
    }
    public void setNotesKey(NotesKey notesKey) {
        this.notesKey = notesKey;
    }


    @OneToMany(fetch=FetchType.LAZY)
    @Access(AccessType.PROPERTY)
    @JoinColumns({
        @JoinColumn(name="noteNumber",referencedColumnName="noteNumber"),
        @JoinColumn(name="ddate",referencedColumnName="ddate"),
        @JoinColumn(name="patient_id",referencedColumnName="patient_id")
    })
    public Set<PatientObjective> getPatientObjectives() {
        return patientObjectives;
    }
    public void setPatientObjectives(Set<PatientObjective> patientObjectives) {
        this.patientObjectives = patientObjectives;
    }


}
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类NotesKey

@Embeddable
public class NotesKey implements Serializable{

    private Byte noteNumber;

    @Temporal(javax.persistence.TemporalType.DATE)
    @Column(name="ddate")
    private Date noteDate;

    private Patient patient;

    public Byte getNoteNumber() { …
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java hibernate

5
推荐指数
1
解决办法
9006
查看次数

redis pub sub with jedis,sub crashes with error

所有

我安装了最新的Redis 2.4.16并尝试将其Pub/Sub系统与java一起使用.我每隔一秒就给一个频道发一条消息.Publisher没有问题,但Subscriber与邮件崩溃

例外:

redis.clients.jedis.exceptions.JedisDataException: ERR only (P)SUBSCRIBE / (P)UNSUBSCRIBE / QUIT allowed in this context
at redis.clients.jedis.Protocol.processError(Protocol.java:59)
at redis.clients.jedis.Protocol.process(Protocol.java:66)
at redis.clients.jedis.Protocol.read(Protocol.java:131)
at redis.clients.jedis.Connection.getObjectMultiBulkReply(Connection.java:206)
at redis.clients.jedis.JedisPubSub.process(JedisPubSub.java:88)
at redis.clients.jedis.JedisPubSub.proceed(JedisPubSub.java:83)
at redis.clients.jedis.Jedis.subscribe(Jedis.java:1971)
at com.jedis.test.JedisSub$1.run(JedisSub.java:22)
at java.lang.Thread.run(Thread.java:680)
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这是我的代码:

出版商:

        final Jedis jedis = new Jedis("localhost");

        ExecutorService newFixedThreadPool = Executors.newFixedThreadPool(10);
        newFixedThreadPool.submit(new Runnable() {

            @Override
            public void run() {
                while(true){
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    jedis.publish("CC", new Date().toString());
                }

            }
        });
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订户:

        JedisPool jedisPool = new JedisPool(poolConfig,"localhost", 6379, 100);
        final …
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java publish-subscribe redis jedis

3
推荐指数
1
解决办法
9453
查看次数

标签 统计

java ×4

hibernate ×2

date ×1

jedis ×1

mysql ×1

optimization ×1

publish-subscribe ×1

redis ×1

spring ×1

time ×1