xml复制代码  <!-- RabbitMQ的起步依赖，和spring-boot整合成一个Jar包了 -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-amqp</artifactId>
    <version>1.5.6.RELEASE</version>
</dependency>

xml复制代码# RabbitMQ配置
spring.rabbitmq.virtual-host=/
# 配置host、端口号、用户名、密码
spring.rabbitmq.host=127.0.0.1
spring.rabbitmq.port=5672
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest

xml复制代码# 设置交换机、路由、队列，使用directExchange消息模型
# 自定义变量，表示本地开发环境
mq.env=local

# 设置direct消息模型中队列、交换机、路由
mq.basic.info.queue.name=${mq.env}.middleware.mq.basic.info.queue.demo1
mq.basic.info.exchange.name=${mq.env}.middleware.mq.basic.info.exchange.demo1
mq.basic.info.routing.key.name=${mq.env}.middleware.mq.basic.info.routing.key.demo1

java复制代码 /**
     * 构建RabbitMQ发送消息的操作组件实例
     * 生产者的发送确认机制
     */
    @Bean(name = "rabbitMQTemplate")
    public RabbitTemplate rabbitTemplate() {
        // 生产者确认消息是否发送过去了
        connectionFactory.setPublisherConfirms(true);

        // 生产者发送消息后，返回反馈消息
        connectionFactory.setPublisherReturns(true);

        // 构建rabbitTemlate操作模板
        RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory);
        rabbitTemplate.setMandatory(true);

        // 生产者发送消息后，如果发送成功，则打印“消息发送成功”的日志信息
        rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {
            public void confirm(CorrelationData correlationData, boolean ack, String cause) {
                log.info("消息发送成功:correlationData({}),ack({}),cause({})",correlationData,ack,cause);
            }
        });

        // 生产者发送消息后，若发送失败，则输出“消息发送失败”的日志信息
        rabbitTemplate.setReturnCallback(new RabbitTemplate.ReturnCallback() {
            public void returnedMessage(Message message, int replyCode, String replyText, String exchange, String routingKey) {
                log.info("消息丢失:exchange({}),route({}),replyCode({}),replyText({}),message:{}",exchange,routingKey,replyCode,replyText,message);
            }
        });

        return rabbitTemplate;
    }

java复制代码 /**
     * 创建direct消息模型：队列、交换机、路由
     */
    // 1.1、创建队列
    @Bean(name = "basicQueue")
    public Queue basicQueue() {
        return new Queue(env.getProperty("mq.basic.info.queue.name"), true);
    }

    // 1.2、创建交换机
    @Bean
    public DirectExchange basicExchange() {
        return new DirectExchange(env.getProperty("mq.basic.info.exchange.name"), true, false);
    }
   
    // 1.3、创建绑定关系
    @Bean
    public Binding basicBinding() {
        return BindingBuilder.bind(basicQueue()).to(basicExchange()).with(env.getProperty("mq.basic.info.routing.key.name"));
    }

java复制代码@Component
@Slf4j
public class BasicPublisher {

    @Autowired
    private RabbitTemplate rabbitTemplate;

    @Autowired
    Environment env;

    // 发送字符串类型的消息
    public void sendMsg(String messageStr) {
        if (!Strings.isNullOrEmpty(messageStr)) {
            try {
                rabbitTemplate.setMessageConverter(new Jackson2JsonMessageConverter());
                rabbitTemplate.setExchange(env.getProperty("mq.basic.info.exchange.name"));
                rabbitTemplate.setRoutingKey(env.getProperty("mq.basic.info.routing.key.name"));

                // 2创建队列、交换机、消息 设置持久化模式
                // 设置消息的持久化模式
                Message message = MessageBuilder.withBody(messageStr.getBytes("utf-8")).
                        setDeliveryMode(MessageDeliveryMode.PERSISTENT).build();
                rabbitTemplate.convertAndSend(message);
                log.info("基本消息模型-生产者-发送消息：{}", messageStr);

            } catch (UnsupportedEncodingException e) {
                log.error("基本消息模型-生产者-发送消息发生异常：{}", messageStr, e.fillInStackTrace());
            }
        }
    }

}

java复制代码 /**
     * 设置单个消费者
     * 消费者的Ack确认机制为AUTO
     */
    @Bean(name = "singleListenerContainer")
    public SimpleRabbitListenerContainerFactory listenerContainerFactory() {
        SimpleRabbitListenerContainerFactory containerFactory = new SimpleRabbitListenerContainerFactory();
        containerFactory.setConnectionFactory(connectionFactory);
        containerFactory.setMessageConverter(new Jackson2JsonMessageConverter());

        // 设置消费者的个数
        containerFactory.setConcurrentConsumers(1);
        // 设置消费者的最大值
        containerFactory.setMaxConcurrentConsumers(1);
        // 设置消费者每次拉取的消息数量，即消费者一次拉取几条消息
        containerFactory.setPrefetchCount(1);

        // 设置确认消息模型为自动确认消费AUTO，目的是防止消息丢失和消息被重复消费
        containerFactory.setAcknowledgeMode(AcknowledgeMode.AUTO);
        return containerFactory;
    }

java复制代码@Component
@Slf4j
public class BasicPublisher {

    @Autowired
    private RabbitTemplate rabbitTemplate;

    @Autowired
    Environment env;

    // 发送字符串类型的消息
    public void sendMsg(String messageStr) {
        if (!Strings.isNullOrEmpty(messageStr)) {
            try {
                rabbitTemplate.setMessageConverter(new Jackson2JsonMessageConverter());
                rabbitTemplate.setExchange(env.getProperty("mq.basic.info.exchange.name"));
                rabbitTemplate.setRoutingKey(env.getProperty("mq.basic.info.routing.key.name"));

                // 2创建队列、交换机、消息 设置持久化模式
                // 设置消息的持久化模式
                Message message = MessageBuilder.withBody(messageStr.getBytes("utf-8")).
                        setDeliveryMode(MessageDeliveryMode.PERSISTENT).build();
                rabbitTemplate.convertAndSend(message);
                log.info("基本消息模型-生产者-发送消息：{}", messageStr);

            } catch (UnsupportedEncodingException e) {
                log.error("基本消息模型-生产者-发送消息发生异常：{}", messageStr, e.fillInStackTrace());
            }
        }
    }

}

java复制代码@Component
@Slf4j
public class BasicConsumer {

    /**
     * 监听并消费队列中的消息
     */
    @RabbitListener(queues = "${mq.basic.info.queue.name}", containerFactory = "singleListenerContainer")
    public void consumerMsg(@Payload byte[] msg) {
        try {
            String messageStr = new String(msg, "utf-8");
            log.info("基本消息模型-消费者-监听并消费到的消息：{}", messageStr);

        } catch (UnsupportedEncodingException e) {

            log.error("基本消息模型-消费者-发生异常：", e.fillInStackTrace());
        }
    }


}

java复制代码@Slf4j
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest
public class RabbitMQTest {

    @Autowired
    private BasicPublisher basicPublisher;

    // 测试 基本消息模型，消息内容为 字符串
    @Test
    public void testBasicMessageModel() {
        String msgStr = "~~~这是一串字符串消息~~~~";
        basicPublisher.sendMsg(msgStr);
    }
}

python复制代码
class Student(object):

    # 类属性
    school = '井冈山大学'

    def __init__(self, name):

        # 实例属性
        self.name = name

python复制代码In [5]: stu1 = Student('hui')

In [6]: stu2 = Student('wang')

In [7]: stu3 = Student('zack')

In [8]: stu1.name, Student.school
Out[8]: ('hui', '井冈山大学')

In [9]: stu2.name, Student.school
Out[9]: ('wang', '井冈山大学')

In [10]: stu3.name, Student.school
Out[10]: ('zack', '井冈山大学')

# 看看实例对象能不能访问类属性，类对象能不能访问实例属性
In [11]: stu1.name, stu1.school
Out[11]: ('hui', '井冈山大学')

In [12]: Student.name, stu1.school
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-12-b897e001b174> in <module>
----> 1 Student.name, stu1.school

AttributeError: type object 'Student' has no attribute 'name'

python复制代码In [15]: dir(stu1)
Out[15]:
['__class__',
 '__delattr__',
 '__dict__',
 '__dir__',
 
 ....
 
 'name',
 'school']

In [16]: stu1.__class__
Out[16]: __main__.Student

In [17]: stu1.__class__.school
Out[17]: '井冈山大学'

In [18]: id(Student)
Out[18]: 2011692023944

In [19]: id(stu1.__class__)
Out[19]: 2011692023944

python复制代码In [24]: class Student(object):
    ...:
    ...:     # 类属性
    ...:     school = '井冈山大学'
    ...:
    ...:     def __init__(self, name):
    ...:
    ...:         # 实例属性
    ...:         self.name = name
    ...:

In [25]: stu1 = Student('hui')

In [26]: stu2 = Student('jack')

In [27]: stu1.name, stu1.school
Out[27]: ('hui', '井冈山大学')

In [28]: stu2.name, stu2.school
Out[28]: ('jack', '井冈山大学')

# 通过类对象进行修改
In [29]: Student.school = '清华大学'

In [30]: stu2.name, stu2.school
Out[30]: ('jack', '清华大学')

In [31]: stu1.name, stu1.school
Out[31]: ('hui', '清华大学')

# 通过实例对象进行修改
IIn [33]: stu1.school = '北京大学'

In [34]: stu1.name, stu1.school
Out[34]: ('hui', '北京大学')

In [35]: stu2.name, stu2.school
Out[35]: ('jack', '清华大学')

In [36]: Student.school
Out[36]: '清华大学'

In [37]: stu1.__class__.school
Out[37]: '清华大学'
    
In [39]: id(stu2.school)
Out[39]: 2011720409808

In [40]: id(Student.school)
Out[40]: 2011720409808

In [41]: id(stu1.school)
Out[41]: 2011720494992

# 通过实例对象的__class__属性修改
IIn [42]: stu2.__class__.school = '井冈山大学'

In [43]: stu1.name, stu1.school
Out[43]: ('hui', '北京大学')

In [44]: stu2.name, stu2.school
Out[44]: ('jack', '井冈山大学')

In [45]: Student.school
Out[45]: '井冈山大学'

python复制代码
class Province(object):
    # 类属性
    country = '中国'

    def __init__(self, name):
        # 实例属性
        self.name = name
        
p1 = Province('江西省')
p2 = Province('四川省')

python复制代码
class Foo(object):

    foo = 'Foo'

    def __init__(self, name):
        self.name = name

    def instance_func(self):
        print(self.name)
        print(self.foo)
        print('实例方法')

    @classmethod
    def class_func1(cls):
        print(cls.foo)
        print('类方法1')

    @classmethod
    def class_func2(cls):
        print(cls.name)
        print('类方法二')

    @staticmethod
    def static_func():
        print('静态方法')

python复制代码# 实例对象调用
In [71]: f = Foo('hui')

In [72]: f.instance_func()
hui
Foo
实例方法

In [73]: f.class_func1()
Foo
类方法1

In [74]: f.class_func2()
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-74-7d161e9e60ec> in <module>
----> 1 f.class_func2()

<ipython-input-60-7fc48649a96a> in class_func2(cls)
     18     @classmethod
     19     def class_func2(cls):
---> 20         print(cls.name)
     21         print('类方法二')
     22

AttributeError: type object 'Foo' has no attribute 'name'

In [75]: f.static_func()
静态方法

# 类对象自身调用
In [76]: Foo.instance_func()
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-76-883efcb56130> in <module>
----> 1 Foo.instance_func()

TypeError: instance_func() missing 1 required positional argument: 'self'

In [77]: Foo.class_func1()
Foo
类方法1

In [78]: Foo.static_func()
静态方法

csharp复制代码class <类名>(b : <基础接口>) : <基础接口> by <基础对象>

kotlin复制代码// 基础接口
interface Base {   
    fun print()
}

// 基础对象
class BaseImpl(val x: Int) : Base {
    override fun print() { print(x) }
}

// 被委托类
class Derived(b: Base) : Base by b

fun main(args: Array<String>) {
    val b = BaseImpl(10)
    Derived(b).print() // 最终调用了 Base#print()
}

kotlin复制代码val/var <属性名> : <类型> by <基础对象>

kotlin复制代码class Example {
    // 被委托属性
    var prop: String by Delegate() // 基础对象
}

// 基础类
class Delegate {
    private var _realValue: String = "彭"

    operator fun getValue(thisRef: Any?, property: KProperty<*>): String {
        println("getValue")
        return _realValue
    }

    operator fun setValue(thisRef: Any?, property: KProperty<*>, value: String) {
        println("setValue")
        _realValue = value
    }
}

fun main(args: Array<String>) {
    val e = Example()
    println(e.prop)    // 最终调用 Delegate#getValue()
    e.prop = "Peng"    // 最终调用 Delegate#setValue()
    println(e.prop)    // 最终调用 Delegate#getValue()
}

输出：
getValue
彭
setValue
getValue
Peng

kotlin复制代码源码：
class Example {
    // 被委托属性
    var prop: String by Delegate() // 基础对象
}

--------------------------------------------------------
编译器生成的字节码：
class Example {
    private val prop$delegate = Delegate()
    // 被委托属性
    var prop: String
        get() = prop$delegate.getValue(this, this:prop)
        set(value : String) = prop$delegate.setValue(this, this:prop, value)
}

kotlin复制代码fun main(args: Array<String>) {
    val lazyValue: String by lazy {
        println("Lazy Init Completed!")
        "Hello World."
    }

    if (true/*someCondition*/) {
        println(lazyValue) // 首次调用
        println(lazyValue) // 后续调用

    }
}
输出：
Lazy Init Completed!
Hello World.
Hello World.

kotlin复制代码val lazyValue: String by lazy {
    println("Lazy Init Completed!")
    "Hello World."
}

fun main(args: Array<String>) {
    println(lazyValue) // 首次调用
    println(lazyValue) // 后续调用
}

输出：
Lazy Init Completed!
Hello World.
Hello World.

kotlin复制代码class User {
    var name: String by Delegates.observable("初始值") { prop, old, new ->
        println("旧值：$old -> 新值：$new")
    }
}

fun main(args: Array<String>) {
    val user = User()
    user.name = "第一次赋值"
    user.name = "第二次赋值"
}

输出：
旧值：初始值 -> 新值：第一次赋值
旧值：第一次赋值 -> 新值：第二次赋值

kotlin复制代码class User(val map: Map<String, Any?>) {
    val name: String by map
}

fun main(args: Array<String>) {
    val map = mutableMapOf(
        "name" to "彭"
    )
    val user = User(map)
    println(user.name)
    map["name"] = "peng"
    println(user.name)
}
输出：
彭
peng

less复制代码@kotlin.jvm.JvmName("getVar")
@kotlin.internal.InlineOnly
public inline operator fun <V, V1 : V> MutableMap<in String, out @Exact V>.getValue(thisRef: Any?, property: KProperty<*>): V1 = (getOrImplicitDefault(property.name) as V1)

@kotlin.internal.InlineOnly
public inline operator fun <V> MutableMap<in String, in V>.setValue(thisRef: Any?, property: KProperty<*>, value: V) {
    this.put(property.name, value)
}

kotlin复制代码@kotlin.jvm.JvmName("getOrImplicitDefaultNullable")
@PublishedApi
internal fun <K, V> Map<K, V>.getOrImplicitDefault(key: K): V {
    if (this is MapWithDefault)
        return this.getOrImplicitDefault(key)

    return getOrElseNullable(key, { throw NoSuchElementException("Key $key is missing in the map.") })
}

kotlin复制代码class MapAccessors(val map: MutableMap<String, Any?>) {

    public inline operator fun <V> getValue(thisRef: Any?, property: KProperty<*>): V = @Suppress("UNCHECKED_CAST") (map[property.name] as V)

    public inline operator fun <V> setValue(thisRef: Any?, property: KProperty<*>, value: V) {
        map[property.name] = value
    }
}

// 使用方法（其实用扩展函数语法更简洁，但考虑到编辑器不会帮我们导致自定义实现，所以故意套在 MapAccessors 内）：

private val _data = MapAccessors(HashMap<String, Any?>())

private var count: Int? by _data

kotlin复制代码val name by object : ReadOnlyProperty<Any?, String> {
    override fun getValue(thisRef: Any?, property: KProperty<*>): String {
        return "Peng"
    }
}

var name by object : ReadWriteProperty<Any?, String> {
    override fun getValue(thisRef: Any?, property: KProperty<*>): String {
        return "Peng"
    }

    override fun setValue(thisRef: Any?, property: KProperty<*>, value: String) {
    }
}

kotlin复制代码class OrderDetailFragment : Fragment(R.layout.fragment_order_detail) {

    private var orderId: Int? = null
    private var orderType: Int? = null

    companion object {

        const val EXTRA_ORDER_ID = "orderId"
        const val EXTRA_ORDER_TYPE = "orderType";

        fun newInstance(orderId: Int, orderType: Int?) = OrderDetailFragment().apply {
            Bundle().apply {
                putInt(EXTRA_ORDER_ID, orderId)
                if (null != orderType) {
                    putInt(EXTRA_ORDER_TYPE, orderType)
                }
            }.also {
                arguments = it
            }
        }
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        arguments?.let {
            orderId = it.getInt(EXTRA_ORDER_ID, 10000)
            orderType = it.getInt(EXTRA_ORDER_TYPE, 2)
        }
    }
}

kotlin复制代码class OrderDetailFragment : Fragment(R.layout.fragment_order_detail) {

    private lateinit var tvDisplay: TextView

    private var orderId: Int by argument()
    private var orderType: Int by argument(2)

    companion object {
        fun newInstance(orderId: Int, orderType: Int) = OrderDetailFragment().apply {
            this.orderId = orderId
            this.orderType = orderType
        }
    }

    override fun onViewCreated(root: View, savedInstanceState: Bundle?) {
        // Try to modify (UnExcepted)
        this.orderType = 3
        // Display Value
        tvDisplay = root.findViewById(R.id.tv_display)
        tvDisplay.text = "orderId = $orderId, orderType = $orderType"
    }
}

kotlin复制代码fun <T> fragmentArgument() = FragmentArgumentProperty<T>()

class FragmentArgumentProperty<T> : ReadWriteProperty<Fragment, T> {

    override fun getValue(thisRef: Fragment, property: KProperty<*>): T {
        return thisRef.arguments?.getValue(property.name) as? T
            ?: throw IllegalStateException("Property ${property.name} could not be read")
    }

    override fun setValue(thisRef: Fragment, property: KProperty<*>, value: T) {
        val arguments = thisRef.arguments ?: Bundle().also { thisRef.arguments = it }
        if (arguments.containsKey(property.name)) {
            // The Value is not expected to be modified
            return
        }
        arguments[property.name] = value
    }
}

kotlin复制代码class TestFragment : Fragment(R.layout.fragment_test) {

    private var _binding: FragmentTestBinding? = null

    private val binding get() = _binding!!

    override fun onViewCreated(root: View, savedInstanceState: Bundle?) {
        _binding = FragmentTestBinding.bind(root)

        binding.tvDisplay.text = "Hello World."
    }

    override fun onDestroyView() {
        super.onDestroyView()

        _binding = null
    }
}

kotlin复制代码class TestFragment : Fragment(R.layout.fragment_test) {

    private val binding by viewBinding(FragmentTestBinding::bind)

    override fun onViewCreated(root: View, savedInstanceState: Bundle?) {
        binding.tvDisplay.text = "Hello World."
    }
}

xml复制代码<dependency> 
    <groupId>org.springframework.boot</groupId> 
    <artifactId>spring-boot-starter-cache</artifactId> 
</dependency>

java复制代码// Process any early evictions
processCacheEvicts(contexts.get(CacheEvictOperation.class), true,
		CacheOperationExpressionEvaluator.NO_RESULT);
...
// Process any late evictions
processCacheEvicts(contexts.get(CacheEvictOperation.class), false, cacheValue);

java复制代码/**
* Whether the eviction should occur before the method is invoked.
* <p>Setting this attribute to {@code true}, causes the eviction to
* occur irrespective of the method outcome (i.e., whether it threw an
* exception or not).
* <p>Defaults to {@code false}, meaning that the cache eviction operation
* will occur <em>after</em> the advised method is invoked successfully (i.e.,
* only if the invocation did not throw an exception).
*/
boolean beforeInvocation() default false;

dos复制代码sqlplus  /nolog
connect / as sysdba
startup

ini复制代码SQLNET.AUTHENTICATION_SERVICE=(NTS)

dos复制代码create tablespace TBS_CHOVA_DATA datafile 'E:\Oracle\oradata\TBS_CHOVA_DATA.dbf' size 1000 M autoextend on next 100 maxsize unlimited;

create temporary tablespace TBS_CHOVA_TEMP tempfile 'E:\Oracle\oradata\TBS_CHOVA_TEMP.dbf' size 1000 M autoextend on next 100 maxsize unlimited;

create tablespace TBS_CHOVA_IDX datafile  'E:\Oracle\oradata\TBS_CHOVA_IDX.dbf' size 200 M autoextend on next 100 maxsize unlimited;

dos复制代码create user smis identified by smis default tablespace TBS_CHOVA_DATA temporary tablespace TBS_CHOVA_TEMP;

grant connect,resource to smis;

grant dba to smis;

复制代码ORACLE_HOME\network\admin

dos复制代码sqlplus sys/oracle@orcl

ini复制代码SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES,HOSTNAME)

ini复制代码NAMES.DIRECTORY_PATH= (TNSNAMES)

ini复制代码NAMES.DIRECTORY_PATH= (TNSNAMES)

ini复制代码ORCL =
     (DESCRIPTION =
     (ADDRESS_LIST =
# 下面是这个TNSNAME 对应的主机，端口，协议 
         (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
)
      (CONNECT_DATA =
# 使用专用服务器模式去连接需要跟服务器的模式匹配，如果没有就根据服务器的模式自动调节 
         (SERVER = DEDICATED)
# 对应service_name ，SQLPLUS>;show parameter service_name; 进行查看 
      (SERVICE_NAME = orcl)
)
)
# 下面这个类似
SALES =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST =dg1)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = sales)
    )
  )

ini复制代码#listener.ora Network Configuration File: 
#E:\oracle\product\10.1.0\Db_2\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
# 下面定义LISTENER 进程为哪个实例提供服务 这里是ORCL ，并且它对应的ORACLE_HOME 和GLOBAL_DBNAME 其中GLOBAL_DBNAME 不是必需的除非
# 使用HOSTNAME 做数据库连接
SID_LIST_LISTENER =
      (SID_LIST =
         (SID_DESC =
              (GLOBAL_DBNAME = boway)
              (ORACLE_HOME = /u01/app/oracle)
       (SID_NAME = ORCL)
)
) 
# 监听器的名字，一台数据库可以有不止一个监听器
# 再向下面是监听器监听的协议，ｉｐ，端口等，这里使用的ｔｃｐ１５２１端口，并且使＃用的是主机名
LISTENER =
     (DESCRIPTION =
         (ADDRESS = (PROTOCOL = TCP)(HOST = dg1)(PORT = 1521))
)

bash复制代码ORACLE_HOME/bin/lsnrctl start

bash复制代码$ORACLE_HOME/netca 向导形式的
$ORACLE_HOME/netmgr

dos复制代码sqlplus sys/oracle@orcl

dos复制代码connect hr/hr@db.us.oracle.com:1521/dba10g

dos复制代码sqlplus / as sysdba

dos复制代码sqlplus sys/oracle

dos复制代码sqlplus sys/oracle@orcl

dos复制代码[oracle@dg1 admin]$ sqlplus sys/oracle
SQL*Plus: Release 10.2.0.1.0 - Production on Sun Feb 13 16:18:33 2011
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
ERROR:
ORA-01034: ORACLE not available 
ORA-27101: shared memory realm does not exist
Linux Error: 2: No such file or directory

sql复制代码Enter user-name: 
initSID.ora 中的Remote_Login_Passwordfile 对身份验证的影响

scss复制代码/etc/hosts (UNIX)
或者
windows\hosts(WIN98) winnt\system32\drivers\etc\hosts (WIN2000)

dos复制代码127.0.0.1 dg1
192.168.0.35 oracledb oracledb
192.168.0.45 tomcat tomcat
202.84.10.193 bj_db bj_db

ini复制代码ORACLE_SID=appdb;export ORACLE_SID
TWO_TASK=appdb;export TWO_TASK

dos复制代码LSNRCTL>help
LSNRCTL>status
LSNRCTL> services

dos复制代码[oracle@dg1 dbs]$ tnsping orcl
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 13-FEB-2011 16:48:06
Copyright (c) 1997, 2005, Oracle.  All rights reserved.
Used parameter files:
/u01/app/oracle/network/admin/sqlnet.ora
 
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = dg1)(PORT = 1521))) (CONNECT_DATA = (SID = orcl)))
OK (10 msec)

dos复制代码SQL>select instance_name,host_name,status from v$instance;

dos复制代码SQL>select open_mode from v$database 
INSTANCE_NAME                  STATUS
------------------------------ ------------------------------------
orcl                           OPEN

dos复制代码SQL> select name from v$database;
NAME
---------------------------
ORCL

makefile复制代码d:\oracle\product\10.1.0\db_1\NETWORK\ADMIN\listener.ora

ini复制代码# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
     (SID_LIST =
            (SID_DESC =
# (SID_NAME = PLSExtProc)
     (SID_NAME = orcl)
            (GLOBAL_DBNAME = ORCL)
            (ORACLE_HOME = /u01/app/oracle)
# (PROGRAM = extproc)
)
)
 
LISTENER =
     (DESCRIPTION_LIST =
           (DESCRIPTION =
           (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
     (DESCRIPTION =
           (ADDRESS = (PROTOCOL = TCP)(HOST = dg1)(PORT = 1521))
)
)

arduino复制代码sqlnet.ora Network Configuration File: d:\oracle\product\10.1.0\db_1\NETWORK\ADMIN\sqlnet.ora

ini复制代码Generated by Oracle configuration tools.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (HOSTNAME)

dos复制代码sqlplus sys/oracle@orcl

dos复制代码lsnrctl start

makefile复制代码C:oradim –startup -sid myoracle

bash复制代码D:oracleora92networkadmin tnsnames.ora
或者
Linux/Unix下/network/admin/tnsnames.ora

sql复制代码alter system set workarea_size_policy=auto scope=both;
alter system set pga_aggregate_target=512m scope=both；

ini复制代码alter system set dispatchers = '(protocol=tcp)(dispatchers=3)(service=oracle10xdb)';

sql复制代码HKEY_LOCAL_MACHINE/SYSTEM/Current ControlSet/Services/OracleOraHome92TNSListener

sql复制代码HKEY_LOCAL_MACHINE/SYSTEM/Current ControlSet/Services/Oracle ServiceMYORACLE

dos复制代码lsnrctl start
LSNRCTL for HPUX: Version 10.1.0.4.0 - Production on 01-JUL-2005 10:16:59 Copyright (c) 1991, 2004, Oracle. All rights reserved.
Starting /db02/product/10.1/bin/tnslsnr: please wait...
TNS-12537: TNS:connection closed
TNS-12560: TNS:proto adapter error
TNS-00507: Connection closed HPUX Error: 29: Illegal seek

复制代码127.0.0.1 localhost.localdomain localhost

ruby复制代码jdbc:oracle:thin:@IP/HOSTNAME:PORT:SID例如jdbc:oracle:thin:@145.**.**.**:1521:z***db2

ini复制代码SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /opt/oracle/product/9.2.0.4)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = SAMPLE.COM)
(ORACLE_HOME = /opt/oracle/product/9.2.0.4)
(SID_NAME = SAMPLE)
))
 
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = tcy.com)(PORT = 1521))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)))

ini复制代码 (SID_DESC =
      (GLOBAL_DBNAME = ammicly)
      (ORACLE_HOME = c:\oracle\product\10.1.0\db_1)
      (SID_NAME = ammicly)
    )
或者在tnsnames.ora增加如下内容:
 (UR=A)

dos复制代码alter system set local_listener='(ADDRESS =(PROTOCOL=TCP)(HOST=10.201.1.134)(PORT=1521)(SID=siebtest))';

ini复制代码打开tnsname.ora, 把(server = shared) 改成 (server = dedicate)；

sql复制代码select count(*) from v$session;
show parameter processes
show parameter sessions

dos复制代码TNS-12560: TNS:protocol adapter error
TNS-00512: Address already in use

sql复制代码HKEY_LOCAL_MACHINE/SYSTEM/Current ControlSet/Services/OracleOraHome92TNSListener

javascript复制代码D:/oracle/ora92/BIN/TNSLSNR

sql复制代码HKEY_LOCAL_MACHINE/SYSTEM/Current ControlSet/Services/Oracle ServiceMYORACLE

bash复制代码d:/oracle/ora92/binORACLE.EXE MYORACLE

rust复制代码开始 -> 程序 -> Oracle -> Configuration and Migration Tools ->
Net Manager→本地→概要文件→Oracle高级安全性→验证→去掉所选方法中的 "NTS"

sql复制代码select 'alter table '||table_name||' allocate extent;' from user_tables where num_rows=0 or num_rows is null;

dos复制代码exp  rad/rad@orcl  file='E:\rad.dmp'  buffer=40960000

dos复制代码sqlplus  /nolog
		connect / as sysdba
		startup
create or replace directory lmm_db_bak as 'D:/lmm_db_bak';
grant read,write on directory lmm_db_bak to public;

sql复制代码select * from dba_directories;

dos复制代码 expdp  rad/rad@orcl  schemas= rad  dumpfile=rad-20170101.dmp directory= lmm_db_bak

dos复制代码 expdp  rad/rad@orcl  schemas= rad  dumpfile=rad-20170101.dmp directory= lmm_db_bak include=table:\"like \'CT%\'\"

sql复制代码drop user rad cascade;

sql复制代码create user rad identified by rad default tablespace TBS_LLM_DATA temporary tablespace TBS_LLM_TEMP;
grant connect,resource to rad;
grant dba to rad;

dos复制代码imp rad/rad@orcl  file='E:\rad.dmp'  buffer=40960000 full=y;

dos复制代码impdp  rad/rad@orcl  schemas= rad  directory= lmm_db_bak dumpfile=RAD-20170101.DMP FULL=y;

ini复制代码如果想导入的用户已经存在:
1. 导出用户 expdp user1/pass1 directory=dumpdir dumpfile=user1.dmp
2. 导入用户 impdp user2/pass2 directory=dumpdir dumpfile=user1.dmp REMAP_SCHEMA=user1:user2 EXCLUDE=USER full=y;
如果想导入的用户不存在:
1. 导出用户 expdp user1/pass1 directory=dumpdir dumpfile=user1.dmp
2. 导入用户 impdp system/passsystem directory=dumpdir dumpfile=user1.dmp REMAP_SCHEMA=user1:user2 full=y;
3. user2会自动建立，其权限和使用的表空间与user1相同，但此时用user2无法登录，必须修改user2的密码

java复制代码$ jhsdb jmap --heap --pid 49150
Attaching to process ID 49150, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 11.0.11+9-LTS-194

using thread-local object allocation.
Garbage-First (G1) GC with 4 thread(s)

Heap Configuration:
   MinHeapFreeRatio         = 40
   MaxHeapFreeRatio         = 70
   MaxHeapSize              = 2147483648 (2048.0MB)
   NewSize                  = 1363144 (1.2999954223632812MB)
   MaxNewSize               = 1287651328 (1228.0MB)
   OldSize                  = 5452592 (5.1999969482421875MB)
   NewRatio                 = 2
   SurvivorRatio            = 8
   MetaspaceSize            = 21807104 (20.796875MB)
   CompressedClassSpaceSize = 1073741824 (1024.0MB)
   MaxMetaspaceSize         = 17592186044415 MB
   G1HeapRegionSize         = 1048576 (1.0MB)

Heap Usage:
G1 Heap:
   regions  = 2048
   capacity = 2147483648 (2048.0MB)
   used     = 14274048 (13.61279296875MB)
   free     = 2133209600 (2034.38720703125MB)
   0.6646871566772461% used
G1 Young Generation:
Eden Space:
   regions  = 2
   capacity = 69206016 (66.0MB)
   used     = 2097152 (2.0MB)
   free     = 67108864 (64.0MB)
   3.0303030303030303% used
Survivor Space:
   regions  = 7
   capacity = 7340032 (7.0MB)
   used     = 7340032 (7.0MB)
   free     = 0 (0.0MB)
   100.0% used
G1 Old Generation:
   regions  = 5
   capacity = 57671680 (55.0MB)
   used     = 4836864 (4.61279296875MB)
   free     = 52834816 (50.38720703125MB)
   8.386896306818182% used

java复制代码
// 测试代码

public class DumpTest {

    public static void main(String[] args) {
        List<Object> list = new ArrayList<>();
        int i = 0;
        int j = 0;
        while (true) {
            list.add(new Teacher("teacher" + i++, i++));
            new Teacher("teacher" + j--, j--);
        }
    }

}
class Teacher {
    private String name;
    private Integer age;
    public Teacher(String name, Integer age) {
        this.name = name;
        this.age = age;
    }
}

java复制代码/**
 * 当DeadLock类的对象flag==1时（td1），先锁定o1,睡眠500毫秒
 * 而td1在睡眠的时候另一个flag==0的对象（td2）线程启动，先锁定o2,睡眠500毫秒
 * td1睡眠结束后需要锁定o2才能继续执行，而此时o2已被td2锁定；
 * td2睡眠结束后需要锁定o1才能继续执行，而此时o1已被td1锁定；
 * td1、td2相互等待，都需要得到对方锁定的资源才能继续执行，从而死锁。
 */
public class DeadLockTest implements Runnable{

    public int flag = 1;
    
    //静态对象是类的所有对象共享的
    private static Object o1 = new Object(), o2 = new Object();
    @Override
    public void run() {
        System.out.println("flag=" + flag);
        if (flag == 1) {
            synchronized (o1) {
                try {
                    Thread.sleep(500);
                } catch (Exception e) {
                    e.printStackTrace();
                }
                synchronized (o2) {
                    System.out.println("1");
                }
            }
        }
        if (flag == 0) {
            synchronized (o2) {
                try {
                    Thread.sleep(500);
                } catch (Exception e) {
                    e.printStackTrace();
                }
                synchronized (o1) {
                    System.out.println("0");
                }
            }
        }
    }

    public static void main(String[] args) {
        DeadLockTest td1 = new DeadLockTest();
        DeadLockTest td2 = new DeadLockTest();
        td1.flag = 1;
        td2.flag = 0;
        //td1,td2都处于可执行状态，但JVM线程调度先执行哪个线程是不确定的。
        //td2的run()可能在td1的run()之前运行
        new Thread(td1).start();
        new Thread(td2).start();
    }
}

java复制代码2021-04-27 23:42:14
Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.171-b11 mixed mode):

"Attach Listener" #15 daemon prio=9 os_prio=31 tid=0x00007fc476153800 nid=0x320b waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"DestroyJavaVM" #14 prio=5 os_prio=31 tid=0x00007fc4761b1800 nid=0x1003 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Thread-1" #13 prio=5 os_prio=31 tid=0x00007fc475108800 nid=0x3e03 waiting for monitor entry [0x0000700002560000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at com.project.mall.test.DeadLockTest.run(DeadLockTest.java:39)
	- waiting to lock <0x0000000795946928> (a java.lang.Object)
	- locked <0x0000000795946938> (a java.lang.Object)
	at java.lang.Thread.run(Thread.java:748)

"Thread-0" #12 prio=5 os_prio=31 tid=0x00007fc4768b8800 nid=0x3c03 waiting for monitor entry [0x000070000245d000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at com.project.mall.test.DeadLockTest.run(DeadLockTest.java:27)
	- waiting to lock <0x0000000795946938> (a java.lang.Object)
	- locked <0x0000000795946928> (a java.lang.Object)
	at java.lang.Thread.run(Thread.java:748)

"Service Thread" #11 daemon prio=9 os_prio=31 tid=0x00007fc476152800 nid=0x4203 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C1 CompilerThread2" #10 daemon prio=9 os_prio=31 tid=0x00007fc476152000 nid=0x4403 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread1" #9 daemon prio=9 os_prio=31 tid=0x00007fc476151000 nid=0x3903 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"C2 CompilerThread0" #8 daemon prio=9 os_prio=31 tid=0x00007fc47687c800 nid=0x4503 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"JDWP Command Reader" #7 daemon prio=10 os_prio=31 tid=0x00007fc475032000 nid=0x4603 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"JDWP Event Helper Thread" #6 daemon prio=10 os_prio=31 tid=0x00007fc475031000 nid=0x4703 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"JDWP Transport Listener: dt_socket" #5 daemon prio=10 os_prio=31 tid=0x00007fc47582e800 nid=0x4807 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Signal Dispatcher" #4 daemon prio=9 os_prio=31 tid=0x00007fc47582a000 nid=0x4903 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"Finalizer" #3 daemon prio=8 os_prio=31 tid=0x00007fc475022000 nid=0x5103 in Object.wait() [0x0000700001939000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x0000000795588ed0> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
	- locked <0x0000000795588ed0> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
	at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:212)

"Reference Handler" #2 daemon prio=10 os_prio=31 tid=0x00007fc476033800 nid=0x5203 in Object.wait() [0x0000700001836000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x0000000795586bf8> (a java.lang.ref.Reference$Lock)
	at java.lang.Object.wait(Object.java:502)
	at java.lang.ref.Reference.tryHandlePending(Reference.java:191)
	- locked <0x0000000795586bf8> (a java.lang.ref.Reference$Lock)
	at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)

"VM Thread" os_prio=31 tid=0x00007fc476014800 nid=0x2b03 runnable

"GC task thread#0 (ParallelGC)" os_prio=31 tid=0x00007fc47501b800 nid=0x1f07 runnable

"GC task thread#1 (ParallelGC)" os_prio=31 tid=0x00007fc47501c000 nid=0x2103 runnable

"GC task thread#2 (ParallelGC)" os_prio=31 tid=0x00007fc47501c800 nid=0x2303 runnable

"GC task thread#3 (ParallelGC)" os_prio=31 tid=0x00007fc47501d800 nid=0x2a03 runnable

"VM Periodic Task Thread" os_prio=31 tid=0x00007fc475962000 nid=0x3b03 waiting on condition

JNI global references: 1579


Found one Java-level deadlock:
=============================
"Thread-1":
  waiting to lock monitor 0x00007fc4758254a8 (object 0x0000000795946928, a java.lang.Object),
  which is held by "Thread-0"
"Thread-0":
  waiting to lock monitor 0x00007fc475821408 (object 0x0000000795946938, a java.lang.Object),
  which is held by "Thread-1"

Java stack information for the threads listed above:
===================================================
"Thread-1":
	at com.project.mall.test.DeadLockTest.run(DeadLockTest.java:39)
	- waiting to lock <0x0000000795946928> (a java.lang.Object)
	- locked <0x0000000795946938> (a java.lang.Object)
	at java.lang.Thread.run(Thread.java:748)
"Thread-0":
	at com.project.mall.test.DeadLockTest.run(DeadLockTest.java:27)
	- waiting to lock <0x0000000795946938> (a java.lang.Object)
	- locked <0x0000000795946928> (a java.lang.Object)
	at java.lang.Thread.run(Thread.java:748)

Found 1 deadlock.

java复制代码"http-nio-8080-ClientPoller" #43 daemon prio=5 os_prio=31 cpu=24.76ms elapsed=327.74s tid=0x00007fd3f33d0800 nid=0x5e1b runnable  [0x000070000d58d000]
   java.lang.Thread.State: RUNNABLE
	at sun.nio.ch.KQueue.poll(java.base@11.0.11/Native Method)
	at sun.nio.ch.KQueueSelectorImpl.doSelect(java.base@11.0.11/KQueueSelectorImpl.java:122)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(java.base@11.0.11/SelectorImpl.java:124)
	- locked <0x00000007843563e8> (a sun.nio.ch.Util$2)
	- locked <0x0000000784356290> (a sun.nio.ch.KQueueSelectorImpl)
	at sun.nio.ch.SelectorImpl.select(java.base@11.0.11/SelectorImpl.java:136)
	at org.apache.tomcat.util.net.NioEndpoint$Poller.run(NioEndpoint.java:816)
	at java.lang.Thread.run(java.base@11.0.11/Thread.java:834)

java复制代码VM Flags:
-XX:-BytecodeVerificationLocal -XX:-BytecodeVerificationRemote -XX:CICompilerCount=3 -XX:ConcGCThreads=1 -XX:G1ConcRefinementThreads=4 -XX:G1HeapRegionSize=1048576 -XX:GCDrainStackTargetSize=64 -XX:InitialHeapSize=134217728 -XX:+ManagementServer -XX:MarkStackSize=4194304 -XX:MaxHeapSize=2147483648 -XX:MaxNewSize=1287651328 -XX:MinHeapDeltaBytes=1048576 -XX:NonNMethodCodeHeapSize=6973028 -XX:NonProfiledCodeHeapSize=244685212 -XX:ProfiledCodeHeapSize=0 -XX:ReservedCodeCacheSize=251658240 -XX:+SegmentedCodeCache -XX:TieredStopAtLevel=1 -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseFastUnorderedTimeStamps -XX:+UseG1GC
zhouxinzedeMacBook-Pro:~ zhouxinze$ jinfo -sysprops 84587
Java System Properties:
#Thu Apr 29 21:55:19 CST 2021
gopherProxySet=false
awt.toolkit=sun.lwawt.macosx.LWCToolkit
java.specification.version=11
sun.cpu.isalist=
sun.jnu.encoding=UTF-8
java.class.path=/Users/zhouxinze/IdeaProjects/mall/target/classes\:/Users/zhouxinze/.m2/repository/org/springframework/boot/spring-boot-starter-web/2.4.5/spring-boot-starter-web-2.4.5.jar\:/Users/zhouxinze/.m2/repository/org/springframework/boot/spring-boot-starter/2.4.5/spring-boot-starter-2.4.5.jar\:/Users/zhouxinze/.m2/repository/org/springframework/boot/spring-boot/2.4.5/spring-boot-2.4.5.jar\:/Users/zhouxinze/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.4.5/spring-boot-autoconfigure-2.4.5.jar\:/Users/zhouxinze/.m2/repository/org/springframework/boot/spring-boot-starter-logging/2.4.5/spring-boot-starter-logging-2.4.5.jar\:/Users/zhouxinze/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar\:/Users/zhouxinze/.m2/repository/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar\:/Users/zhouxinze/.m2/repository/org/apache/logging/log4j/log4j-to-slf4j/2.13.3/log4j-to-slf4j-2.13.3.jar\:/Users/zhouxinze/.m2/repository/org/apache/logging/log4j/log4j-api/2.13.3/log4j-api-2.13.3.jar\:/Users/zhouxinze/.m2/repository/org/slf4j/jul-to-slf4j/1.7.30/jul-to-slf4j-1.7.30.jar\:/Users/zhouxinze/.m2/repository/jakarta/annotation/jakarta.annotation-api/1.3.5/jakarta.annotation-api-1.3.5.jar\:/Users/zhouxinze/.m2/repository/org/yaml/snakeyaml/1.27/snakeyaml-1.27.jar\:/Users/zhouxinze/.m2/repository/org/springframework/boot/spring-boot-starter-json/2.4.5/spring-boot-starter-json-2.4.5.jar\:/Users/zhouxinze/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.11.4/jackson-databind-2.11.4.jar\:/Users/zhouxinze/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.11.4/jackson-annotations-2.11.4.jar\:/Users/zhouxinze/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.11.4/jackson-core-2.11.4.jar\:/Users/zhouxinze/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.11.4/jackson-datatype-jdk8-2.11.4.jar\:/Users/zhouxinze/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.11.4/jackson-datatype-jsr310-2.11.4.jar\:/Users/zhouxinze/.m2/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.11.4/jackson-module-parameter-names-2.11.4.jar\:/Users/zhouxinze/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/2.4.5/spring-boot-starter-tomcat-2.4.5.jar\:/Users/zhouxinze/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.45/tomcat-embed-core-9.0.45.jar\:/Users/zhouxinze/.m2/repository/org/glassfish/jakarta.el/3.0.3/jakarta.el-3.0.3.jar\:/Users/zhouxinze/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/9.0.45/tomcat-embed-websocket-9.0.45.jar\:/Users/zhouxinze/.m2/repository/org/springframework/spring-web/5.3.6/spring-web-5.3.6.jar\:/Users/zhouxinze/.m2/repository/org/springframework/spring-beans/5.3.6/spring-beans-5.3.6.jar\:/Users/zhouxinze/.m2/repository/org/springframework/spring-webmvc/5.3.6/spring-webmvc-5.3.6.jar\:/Users/zhouxinze/.m2/repository/org/springframework/spring-aop/5.3.6/spring-aop-5.3.6.jar\:/Users/zhouxinze/.m2/repository/org/springframework/spring-context/5.3.6/spring-context-5.3.6.jar\:/Users/zhouxinze/.m2/repository/org/springframework/spring-expression/5.3.6/spring-expression-5.3.6.jar\:/Users/zhouxinze/.m2/repository/org/slf4j/slf4j-api/1.7.30/slf4j-api-1.7.30.jar\:/Users/zhouxinze/.m2/repository/org/springframework/spring-core/5.3.6/spring-core-5.3.6.jar\:/Users/zhouxinze/.m2/repository/org/springframework/spring-jcl/5.3.6/spring-jcl-5.3.6.jar
java.vm.vendor=Oracle Corporation
sun.arch.data.model=64
catalina.useNaming=false
java.vendor.url=https\://openjdk.java.net/
user.timezone=Asia/Shanghai
java.vm.specification.version=11
os.name=Mac OS X
sun.java.launcher=SUN_STANDARD
user.country=CN
sun.boot.library.path=/Library/Java/JavaVirtualMachines/jdk-11.0.11.jdk/Contents/Home/lib
spring.application.admin.enabled=true
sun.java.command=com.mall.MallApplication
com.sun.management.jmxremote=
jdk.debug=release
sun.cpu.endian=little
spring.liveBeansView.mbeanDomain=
user.home=/Users/zhouxinze
user.language=zh
java.specification.vendor=Oracle Corporation
java.version.date=2021-04-20
java.home=/Library/Java/JavaVirtualMachines/jdk-11.0.11.jdk/Contents/Home
file.separator=/
spring.output.ansi.enabled=always
java.vm.compressedOopsMode=Zero based
line.separator=\n
java.specification.name=Java Platform API Specification
java.vm.specification.vendor=Oracle Corporation
FILE_LOG_CHARSET=UTF-8
java.awt.graphicsenv=sun.awt.CGraphicsEnvironment
java.awt.headless=true
user.script=Hans
sun.management.compiler=HotSpot 64-Bit Tiered Compilers
java.runtime.version=11.0.11+9-LTS-194
spring.jmx.enabled=true
path.separator=\:
os.version=10.15.6
java.runtime.name=Java(TM) SE Runtime Environment
file.encoding=UTF-8
spring.beaninfo.ignore=true
java.vm.name=Java HotSpot(TM) 64-Bit Server VM
java.vendor.version=18.9
java.vendor.url.bug=https\://bugreport.java.com/bugreport/
java.io.tmpdir=/var/folders/qz/gl34hk1x5yv5wb0l6tsyq_x80000gp/T/
catalina.home=/private/var/folders/qz/gl34hk1x5yv5wb0l6tsyq_x80000gp/T/tomcat.8080.5214054096261208489
java.version=11.0.11
os.arch=x86_64
java.vm.specification.name=Java Virtual Machine Specification
PID=84587
java.awt.printerjob=sun.lwawt.macosx.CPrinterJob
sun.os.patch.level=unknown
CONSOLE_LOG_CHARSET=UTF-8
catalina.base=/private/var/folders/qz/gl34hk1x5yv5wb0l6tsyq_x80000gp/T/tomcat.8080.5214054096261208489
java.vendor=Oracle Corporation
java.vm.info=mixed mode
java.vm.version=11.0.11+9-LTS-194
java.rmi.server.randomIDs=true
sun.io.unicode.encoding=UnicodeBig
java.class.version=55.0

java复制代码-Xms1536M -Xmx1536M -Xmn512M -Xss256K -XX:SurvivorRatio=6 -XX:MetaspaceSize=256M -XX:MaxMetaspaceSize=256M -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly

java复制代码-Xms1536M -Xmx1536M -Xmn1024M -Xss256K -XX:SurvivorRatio=6 -XX:MetaspaceSize=256M -XX:MaxMetaspaceSize=256M -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=90 -XX:+UseCMSInitiatingOccupancyOnly

java复制代码
@ComponentScan(value = "com.zxhtom.cloud.order.spring")
public class Config {
}

java复制代码//首先获取容器上下文
AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(Config.class);
//生成java类对应的BeanDefinitionBuilder
BeanDefinitionBuilder builder = BeanDefinitionBuilder
        .genericBeanDefinition(Student.class);
//将BeanDefinition注册到该spring容器上
context.registerBeanDefinition("student",builder.getBeanDefinition());
//尝试获取
Object orderController = context.getBean("student");
System.out.println(orderController);

java复制代码
@Data
public class User {
    private String name;
}

java复制代码
public class UserFactoryBean implements FactoryBean<User> {
    @Override
    public User getObject() throws Exception {
        User user = new User();
        user.setName("hello");
        return user;
    }

    @Override
    public Class<?> getObjectType() {
        return User.class;
    }
}

java复制代码
public class BeanTest {
    public static void main(String[] args) {
        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
        BeanDefinitionBuilder builder = BeanDefinitionBuilder
                .genericBeanDefinition(UserFactoryBean.class);
        context.refresh();
        context.registerBeanDefinition("user", builder.getBeanDefinition());
        System.out.println("获取user:"+context.getBean("user"));
        System.out.println("获取userFactoryBean:"+context.getBean("&user"));
    }
}

java复制代码
public static void main(String[] args) {
    AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
    context.refresh();
    context.registerBean("user", User.class);
    User user = (User) context.getBean("user");
    System.out.println(user.getName());
}

java复制代码
public static void main(String[] args) {
    AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
    context.refresh();
    context.registerBean(User.class, new Supplier<User>() {
        @Override
        public User get() {
            User user = new User();
            user.setName(new Date().toString());
            return user;
        }
    }, new BeanDefinitionCustomizer() {
        @Override
        public void customize(BeanDefinition bd) {
            bd.setPrimary(true);
            System.out.println(bd);
        }
    });
    User user = (User) context.getBean("user");
    System.out.println(user.getName());
}