Merge pull request #61 from 1713612859/main

将BeanDefinition 的Map 修改成为并发Map ，并设置初始化大小

Author: DerekYRC

src/main/java/org/springframework/beans/factory/config/BeanDefinition.java

@@ -16,20 +16,36 @@ public class BeanDefinition {
 
 	public static String SCOPE_PROTOTYPE = "prototype";
 
-	private Class beanClass;
 
-	private PropertyValues propertyValues;
+	 /**
+	  * bean class类
+	  */
+	 private Class beanClass;
 
+	 /**
+	  * class 属性值
+	  */
+	private PropertyValues propertyValues;
+	 /**
+	  * 通过反射 初始化方法名称
+	  */
 	private String initMethodName;
-
+	 /**
+	  * 销毁方法名称
+	  */
 	private String destroyMethodName;
-
+	 /**
+	  * 作用域 默认单例Bean
+	  */
 	private String scope = SCOPE_SINGLETON;
 
 	private boolean singleton = true;
 
 	private boolean prototype = false;
 
+	/*/*
+		懒加载
+	 */
 	private boolean lazyInit=false;
 
 	public BeanDefinition(Class beanClass) {

src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java

@@ -5,6 +5,7 @@
 import org.springframework.beans.factory.config.BeanDefinition;
 
 import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * @author derekyi
@@ -13,7 +14,7 @@
 public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFactory
 		implements ConfigurableListableBeanFactory, BeanDefinitionRegistry {
 
-	private Map<String, BeanDefinition> beanDefinitionMap = new HashMap<>();
+	private Map<String, BeanDefinition> beanDefinitionMap = new ConcurrentHashMap<>(256);
 
 	@Override
 	public void registerBeanDefinition(String beanName, BeanDefinition beanDefinition) {

src/main/java/org/springframework/beans/factory/support/DefaultSingletonBeanRegistry.java

@@ -15,13 +15,19 @@
  */
 public class DefaultSingletonBeanRegistry implements SingletonBeanRegistry {
 
-	//一级缓存
+	 /**
+	  * 一级缓存
+	  */
 	private Map<String, Object> singletonObjects = new HashMap<>();
 
-	//二级缓存
+	 /**
+	  * 二级缓存
+	  */
 	private Map<String, Object> earlySingletonObjects = new HashMap<>();
 
-	//三级缓存
+	 /**
+	  * 三级缓存
+	  */
 	private Map<String, ObjectFactory<?>> singletonFactories = new HashMap<String, ObjectFactory<?>>();
 
 	private final Map<String, DisposableBean> disposableBeans = new HashMap<>();
@@ -46,9 +52,9 @@ public Object getSingleton(String beanName) {
 
 	@Override
 	public void addSingleton(String beanName, Object singletonObject) {
-		singletonObjects.put(beanName, singletonObject);
-		earlySingletonObjects.remove(beanName);
-		singletonFactories.remove(beanName);
+		singletonObjects.put(beanName, singletonObject); // 1
+		earlySingletonObjects.remove(beanName); // 2
+		singletonFactories.remove(beanName); // 3
 	}
 
 	protected void addSingletonFactory(String beanName, ObjectFactory<?> singletonFactory) {