{"id":64584,"date":"2026-01-23T19:40:21","date_gmt":"2026-01-23T11:40:21","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/64584.html"},"modified":"2026-01-23T19:40:21","modified_gmt":"2026-01-23T11:40:21","slug":"spring%e5%ae%b9%e5%99%a8%e5%90%af%e5%8a%a8%e6%b5%81%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/64584.html","title":{"rendered":"Spring\u5bb9\u5668\u542f\u52a8\u6d41\u7a0b"},"content":{"rendered":"

<\/h2>\n

\u672c\u6587\u57fa\u4e8eSpring Framework\u6e90\u7801，\u4ee5\u300cAnnotationConfigApplicationContext\u300d\u4e3a\u5165\u53e3（Java Config\u65b9\u5f0f），\u5168\u9762\u62c6\u89e3Spring\u5bb9\u5668\u542f\u52a8\u7684\u5b8c\u6574\u6d41\u7a0b，\u5305\u542b\u521d\u59cb\u5316\u3001\u914d\u7f6e\u7c7b\u6ce8\u518c\u3001\u5bb9\u5668\u5237\u65b0\u4e09\u5927\u6838\u5fc3\u6b65\u9aa4，\u7ed3\u5408\u6e90\u7801\u9010\u53e5\u5206\u6790\u5173\u952e\u903b\u8f91，\u8865\u5145\u6838\u5fc3\u6982\u5ff5\u3001\u6269\u5c55\u77e5\u8bc6\u70b9\u53ca\u5b9e\u6218\u5173\u8054，\u52a9\u529b\u6df1\u5165\u7406\u89e3Spring\u5e95\u5c42\u539f\u7406\u3002<\/p>\n

\u6838\u5fc3\u524d\u63d0：<\/p>\n

Spring\u5bb9\u5668\u542f\u52a8\u7684\u672c\u8d28\u662f\u300c\u521b\u5efaBeanFactory\u3001\u6ce8\u518cBeanDefinition\u3001\u521d\u59cb\u5316Bean\u3001\u5efa\u7acb\u4f9d\u8d56\u5173\u7cfb\u300d\u7684\u8fc7\u7a0b\u3002\u65e0\u8bba\u662fJava Config（AnnotationConfigApplicationContext）\u8fd8\u662fXML\u914d\u7f6e（ClassPathXmlApplicationContext），\u6838\u5fc3\u6d41\u7a0b\u4e00\u81f4，\u5747\u7ee7\u627f\u81eaAbstractApplicationContext，\u6838\u5fc3\u65b9\u6cd5refresh()\u5b9a\u4e49\u4e8e\u6b64\u7c7b\u4e2d\u3002<\/p>\n

\u4e00\u3001Spring\u542f\u52a8\u6838\u5fc3\u4e09\u6b65\u9aa4\u603b\u89c8<\/h2>\n

Spring\u5bb9\u5668\u542f\u52a8\u6574\u4f53\u53ef\u5f52\u7eb3\u4e3a\u4e09\u5927\u6838\u5fc3\u6b65\u9aa4，\u5bf9\u5e94AnnotationConfigApplicationContext\u7684\u6784\u9020\u65b9\u6cd5\u6e90\u7801，\u903b\u8f91\u6e05\u6670\u4e14\u5c42\u5c42\u9012\u8fdb：<\/p>\n

\/\/ AnnotationConfigApplicationContext\u6784\u9020\u65b9\u6cd5（Java Config\u5165\u53e3）
\npublic AnnotationConfigApplicationContext(Class<?>… annotatedClasses) {
\n \/\/ \u6b65\u9aa41：\u521d\u59cb\u5316Spring\u5bb9\u5668，\u6ce8\u518c\u5185\u7f6eBeanPostProcessor\u7684BeanDefinition
\n this();
\n \/\/ \u6b65\u9aa42：\u5c06\u7528\u6237\u914d\u7f6e\u7c7b（\u5982SpringConfig）\u7684BeanDefinition\u6ce8\u518c\u5230\u5bb9\u5668
\n register(annotatedClasses);
\n \/\/ \u6b65\u9aa43：\u8c03\u7528refresh()\u5237\u65b0\u5bb9\u5668，\u5b8c\u6210Bean\u521d\u59cb\u5316\u3001\u4f9d\u8d56\u6ce8\u5165\u7b49\u6838\u5fc3\u64cd\u4f5c
\n refresh();
\n} <\/p>\n

\u4e8c\u3001\u6b65\u9aa41：\u5bb9\u5668\u521d\u59cb\u5316\u6d41\u7a0b（this()\u65e0\u53c2\u6784\u9020）<\/h2>\n

\u8c03\u7528\u65e0\u53c2\u6784\u9020\u65b9\u6cd5this()，\u6838\u5fc3\u76ee\u7684\u662f\u300c\u521d\u59cb\u5316\u5bb9\u5668\u57fa\u7840\u7ec4\u4ef6，\u4e3a\u540e\u7eedBeanDefinition\u6ce8\u518c\u548c\u89e3\u6790\u505a\u51c6\u5907\u300d，\u5177\u4f53\u5b8c\u62103\u4ef6\u6838\u5fc3\u4e8b，\u540c\u65f6\u6ce8\u518cSpring\u5185\u7f6e\u7684\u540e\u7f6e\u5904\u7406\u5668BeanDefinition\u3002<\/p>\n

1.1 \u6838\u5fc3\u64cd\u4f5c\u62c6\u89e3<\/h3>\n
  • \n

    \u5b9e\u4f8b\u5316BeanFactory\u5de5\u5382：\u521b\u5efaDefaultListableBeanFactory\u5b9e\u4f8b，\u8fd9\u662fSpring\u6838\u5fc3\u7684Bean\u5de5\u5382，\u8d1f\u8d23Bean\u7684\u521b\u5efa\u3001\u5b58\u50a8\u3001\u7ba1\u7406，\u540e\u7eed\u6240\u6709BeanDefinition\u90fd\u4f1a\u6ce8\u518c\u5230\u8be5\u5de5\u5382\u4e2d\u3002<\/p>\n<\/li>\n

  • \n

    \u5b9e\u4f8b\u5316BeanDefinitionReader\u6ce8\u89e3\u89e3\u6790\u5668：\u7528\u4e8e\u89e3\u6790\u5e26\u6709\u7279\u5b9a\u6ce8\u89e3（@Component\u3001@Service\u3001@Repository\u3001@Controller\u3001@Configuration\u7b49）\u7684\u7c7b，\u5c06\u5176\u8f6c\u5316\u4e3aBeanDefinition\u5bf9\u8c61\u3002 \u8865\u5145：BeanDefinition\u662fSpring\u6838\u5fc3\u6570\u636e\u7ed3\u6784，\u5b58\u50a8Bean\u7684\u6240\u6709\u5143\u4fe1\u606f（\u7c7b\u540d\u3001\u662f\u5426\u5355\u4f8b\u3001\u662f\u5426\u61d2\u52a0\u8f7d\u3001\u4f9d\u8d56\u5173\u7cfb\u3001\u521d\u59cb\u5316\u65b9\u6cd5\u3001\u9500\u6bc1\u65b9\u6cd5\u7b49），\u662fBean\u521b\u5efa\u7684\u201c\u84dd\u56fe\u201d\u3002<\/p>\n<\/li>\n

  • \n

    \u5b9e\u4f8b\u5316ClassPathBeanDefinitionScanner\u8def\u5f84\u626b\u63cf\u5668：\u7528\u4e8e\u626b\u63cf\u6307\u5b9a\u5305\u8def\u5f84\u4e0b\u7684\u6240\u6709\u7c7b，\u7b5b\u9009\u51fa\u5e26\u6709\u6ce8\u89e3\u7684\u7c7b，\u4ea4\u7ed9BeanDefinitionReader\u89e3\u6790\u4e3aBeanDefinition\u3002<\/p>\n<\/li>\n

  • \n

    \u6ce8\u518c\u5185\u7f6e\u540e\u7f6e\u5904\u7406\u5668BeanDefinition：\u901a\u8fc7AnnotationConfigUtils.registerAnnotationConfigProcessors()\u65b9\u6cd5，\u5411\u5bb9\u5668\u6ce8\u518cSpring\u5185\u7f6e\u7684BeanDefinitionRegistryPostProcessor\u548cBeanPostProcessor，\u6838\u5fc3\u5305\u62ec：<\/p>\n

  • \n

    ConfigurationClassPostProcessor：BeanFactory\u540e\u7f6e\u5904\u7406\u5668，\u6838\u5fc3\u804c\u8d23\u662f\u626b\u63cf\u914d\u7f6e\u7c7b\u3001\u89e3\u6790@ComponentScan\u3001@Import\u3001@Bean\u7b49\u6ce8\u89e3，\u5b8c\u6210BeanDefinition\u7684\u6279\u91cf\u6ce8\u518c\u3002<\/p>\n<\/li>\n

  • \n

    AutowiredAnnotationBeanPostProcessor：Bean\u540e\u7f6e\u5904\u7406\u5668，\u6838\u5fc3\u804c\u8d23\u662f\u5904\u7406@Autowired\u3001@Value\u6ce8\u89e3\u7684\u81ea\u52a8\u6ce8\u5165\u3002<\/p>\n<\/li>\n

  • \n

    CommonAnnotationBeanPostProcessor：Bean\u540e\u7f6e\u5904\u7406\u5668，\u5904\u7406@Resource\u3001@PostConstruct\u3001@PreDestroy\u7b49\u6ce8\u89e3\u3002<\/p>\n<\/li>\n<\/li>\n

    1.2 \u6838\u5fc3\u6e90\u7801\u5256\u6790（AnnotationConfigApplicationContext\u65e0\u53c2\u6784\u9020）<\/h3>\n

    public AnnotationConfigApplicationContext() {
    \n \/\/ 1. \u5b9e\u4f8b\u5316BeanDefinitionReader，\u5173\u8054\u5f53\u524d\u5bb9\u5668（\u7528\u4e8e\u89e3\u6790\u6ce8\u89e3\u7c7b\u4e3aBeanDefinition）
    \n this.reader = new AnnotatedBeanDefinitionReader(this);
    \n \/\/ 2. \u5b9e\u4f8b\u5316ClassPathBeanDefinitionScanner，\u5173\u8054\u5f53\u524d\u5bb9\u5668（\u7528\u4e8e\u626b\u63cf\u5305\u8def\u5f84）
    \n this.scanner = new ClassPathBeanDefinitionScanner(this);
    \n}<\/p>\n

    \/\/ AnnotatedBeanDefinitionReader\u6784\u9020\u65b9\u6cd5\u4e2d，\u4f1a\u8c03\u7528AnnotationConfigUtils\u6ce8\u518c\u5185\u7f6e\u7ec4\u4ef6
    \npublic AnnotatedBeanDefinitionReader(BeanDefinitionRegistry registry) {
    \n this(registry, getOrCreateEnvironment(registry));
    \n}<\/p>\n

    public AnnotatedBeanDefinitionReader(BeanDefinitionRegistry registry, Environment environment) {
    \n this.registry = registry;
    \n this.conditionEvaluator = new ConditionEvaluator(registry, environment, null);
    \n \/\/ \u6838\u5fc3：\u6ce8\u518cSpring\u5185\u7f6e\u7684\u540e\u7f6e\u5904\u7406\u5668BeanDefinition
    \n AnnotationConfigUtils.registerAnnotationConfigProcessors(this.registry);
    \n}<\/p>\n

    1.3 \u6269\u5c55\u77e5\u8bc6\u70b9<\/h3>\n
      \n
    • \n

      BeanFactory\u4e0eApplicationContext\u7684\u533a\u522b：BeanFactory\u662fSpring\u6700\u57fa\u7840\u7684Bean\u5bb9\u5668，\u4ec5\u63d0\u4f9bBean\u7684\u521b\u5efa\u548c\u7ba1\u7406\u529f\u80fd；ApplicationContext\u662fBeanFactory\u7684\u5b50\u7c7b，\u9664\u4e86BeanFactory\u7684\u529f\u80fd，\u8fd8\u96c6\u6210\u4e86\u56fd\u9645\u5316\u3001\u4e8b\u4ef6\u53d1\u5e03\u3001\u8d44\u6e90\u52a0\u8f7d\u7b49\u9ad8\u7ea7\u529f\u80fd\u3002<\/p>\n<\/li>\n

    • \n

      \u5185\u7f6e\u540e\u7f6e\u5904\u7406\u5668\u7684\u4f5c\u7528：Spring\u5185\u7f6e\u540e\u7f6e\u5904\u7406\u5668\u662f\u5bb9\u5668\u6b63\u5e38\u5de5\u4f5c\u7684\u57fa\u7840，\u65e0\u9700\u7528\u6237\u624b\u52a8\u914d\u7f6e，\u4f1a\u81ea\u52a8\u6ce8\u518c\u5e76\u751f\u6548，\u8d1f\u8d23\u5b8c\u6210\u6ce8\u89e3\u89e3\u6790\u3001\u81ea\u52a8\u6ce8\u5165\u3001Bean\u751f\u547d\u5468\u671f\u5e72\u9884\u7b49\u6838\u5fc3\u64cd\u4f5c\u3002<\/p>\n<\/li>\n<\/ul>\n

      \u4e09\u3001\u6b65\u9aa42：\u6ce8\u518c\u914d\u7f6e\u7c7b\u5230\u5bb9\u5668（register()\u65b9\u6cd5）<\/h2>\n

      register(annotatedClasses)\u65b9\u6cd5\u7684\u6838\u5fc3\u662f\u300c\u5c06\u7528\u6237\u4f20\u5165\u7684\u914d\u7f6e\u7c7b（\u5982\u6807\u6ce8@Configuration\u7684\u7c7b）\u89e3\u6790\u4e3aBeanDefinition，\u5e76\u6ce8\u518c\u5230BeanFactory\u4e2d\u300d，\u4e3a\u540e\u7eedrefresh()\u9636\u6bb5\u7684Bean\u626b\u63cf\u548c\u521d\u59cb\u5316\u505a\u51c6\u5907\u3002<\/p>\n

      2.1 \u6838\u5fc3\u64cd\u4f5c\u62c6\u89e3<\/h3>\n
    • \n

      \u89e3\u6790\u914d\u7f6e\u7c7b\u4e3aBeanDefinition：\u901a\u8fc7AnnotatedGenericBeanDefinition\u5c01\u88c5\u914d\u7f6e\u7c7b，\u5c06\u914d\u7f6e\u7c7b\u7684\u5143\u4fe1\u606f（\u6ce8\u89e3\u3001\u7c7b\u540d\u3001\u4f5c\u7528\u57df\u7b49）\u5b58\u50a8\u5230BeanDefinition\u4e2d\u3002<\/p>\n<\/li>\n

    • \n

      \u6761\u4ef6\u7b5b\u9009（@Conditional\u6ce8\u89e3\u5904\u7406）：\u901a\u8fc7ConditionEvaluator\u5224\u65ad\u914d\u7f6e\u7c7b\u662f\u5426\u6ee1\u8db3@Conditional\u6ce8\u89e3\u7684\u6761\u4ef6，\u4e0d\u6ee1\u8db3\u5219\u8df3\u8fc7\u6ce8\u518c\u3002<\/p>\n<\/li>\n

    • \n

      \u5904\u7406\u4f5c\u7528\u57df\u548cBean\u540d\u79f0：\u89e3\u6790@Scope\u6ce8\u89e3\u786e\u5b9aBean\u7684\u4f5c\u7528\u57df（\u9ed8\u8ba4\u5355\u4f8b），\u901a\u8fc7BeanNameGenerator\u751f\u6210Bean\u7684\u540d\u79f0（\u9ed8\u8ba4\u9996\u5b57\u6bcd\u5c0f\u5199\u7684\u7c7b\u540d）\u3002<\/p>\n<\/li>\n

    • \n

      \u5904\u7406\u901a\u7528\u6ce8\u89e3：\u901a\u8fc7AnnotationConfigUtils.processCommonDefinitionAnnotations()\u5904\u7406@Primary\u3001@Lazy\u3001@DependsOn\u7b49\u901a\u7528\u6ce8\u89e3，\u8bbe\u7f6e\u5230BeanDefinition\u4e2d\u3002<\/p>\n<\/li>\n

    • \n

      \u6ce8\u518c\u5230\u5bb9\u5668：\u5c06\u5c01\u88c5\u597d\u7684BeanDefinitionHolder\u6ce8\u518c\u5230BeanFactory\u7684BeanDefinitionRegistry\u4e2d，\u5b8c\u6210\u914d\u7f6e\u7c7b\u7684\u6ce8\u518c\u3002<\/p>\n<\/li>\n

      2.2 \u6838\u5fc3\u6e90\u7801\u5256\u6790（AnnotatedBeanDefinitionReader#doRegisterBean）<\/h3>\n

      \/\/ \u6838\u5fc3\u65b9\u6cd5：\u6ce8\u518c\u5355\u4e2a\u6ce8\u89e3\u7c7b（\u914d\u7f6e\u7c7b\u6216\u666e\u901aBean）
      \n<T> void doRegisterBean(Class<T> annotatedClass, @Nullable Supplier<T> instanceSupplier, @Nullable String name,
      \n@Nullable Class<? extends Annotation>[] qualifiers, BeanDefinitionCustomizer… definitionCustomizers) {
      \n\/\/ 1. \u89e3\u6790\u914d\u7f6e\u7c7b\u4e3aAnnotatedGenericBeanDefinition（\u5305\u542b\u7c7b\u7684\u6ce8\u89e3\u5143\u4fe1\u606f）
      \nAnnotatedGenericBeanDefinition abd = new AnnotatedGenericBeanDefinition(annotatedClass);
      \n\/\/ 2. \u5904\u7406@Conditional\u6ce8\u89e3，\u5224\u65ad\u662f\u5426\u8df3\u8fc7\u6ce8\u518c
      \nif (this.conditionEvaluator.shouldSkip(abd.getMetadata())) {
      \nreturn;
      \n}<\/p>\n

      \/\/ 3. \u8bbe\u7f6e\u5b9e\u4f8b\u63d0\u4f9b\u5668（\u53ef\u9009，\u7528\u4e8e\u81ea\u5b9a\u4e49Bean\u5b9e\u4f8b\u521b\u5efa）
      \nabd.setInstanceSupplier(instanceSupplier);
      \n\/\/ 4. \u89e3\u6790@Scope\u6ce8\u89e3，\u786e\u5b9aBean\u4f5c\u7528\u57df（\u9ed8\u8ba4singleton）
      \nScopeMetadata scopeMetadata = this.scopeMetadataResolver.resolveScopeMetadata(abd);
      \nabd.setScope(scopeMetadata.getScopeName());
      \n\/\/ 5. \u751f\u6210Bean\u540d\u79f0（\u9ed8\u8ba4\u7c7b\u540d\u9996\u5b57\u6bcd\u5c0f\u5199，\u53ef\u901a\u8fc7@Bean\u6307\u5b9a）
      \nString beanName = (name != null ? name : this.beanNameGenerator.generateBeanName(abd, this.registry));
      \n\/\/ 6. \u5904\u7406\u901a\u7528\u6ce8\u89e3：@Primary\u3001@Lazy\u3001@DependsOn\u7b49
      \nAnnotationConfigUtils.processCommonDefinitionAnnotations(abd);
      \n\/\/ 7. \u5904\u7406\u81ea\u5b9a\u4e49\u9650\u5b9a\u7b26\u6ce8\u89e3（\u5982@Qualifier）
      \nif (qualifiers != null) {
      \nfor (Class<? extends Annotation> qualifier : qualifiers) {
      \nif (Primary.class == qualifier) {
      \nabd.setPrimary(true); \/\/ \u6807\u8bb0\u4e3a\u9996\u9009Bean
      \n}
      \nelse if (Lazy.class == qualifier) {
      \nabd.setLazyInit(true); \/\/ \u6807\u8bb0\u4e3a\u61d2\u52a0\u8f7d
      \n}
      \nelse {
      \nabd.addQualifier(new AutowireCandidateQualifier(qualifier));
      \n}
      \n}
      \n}
      \n\/\/ 8. \u5e94\u7528\u81ea\u5b9a\u4e49BeanDefinition\u914d\u7f6e（\u7528\u6237\u6269\u5c55）
      \nfor (BeanDefinitionCustomizer customizer : definitionCustomizers) {
      \ncustomizer.customize(abd);
      \n}
      \n\/\/ 9. \u5c01\u88c5\u4e3aBeanDefinitionHolder（\u5305\u542bBeanDefinition\u548cBean\u540d\u79f0）
      \nBeanDefinitionHolder definitionHolder = new BeanDefinitionHolder(abd, beanName);
      \n\/\/ 10. \u5904\u7406\u4f5c\u7528\u57df\u4ee3\u7406（\u5982@Scope(proxyMode = ScopedProxyMode.INTERFACES)）
      \ndefinitionHolder = AnnotationConfigUtils.applyScopedProxyMode(scopeMetadata, definitionHolder, this.registry);
      \n\/\/ 11. \u6700\u7ec8\u6ce8\u518c\u5230BeanDefinitionRegistry（BeanFactory\u7684\u6838\u5fc3\u7ec4\u4ef6）
      \nBeanDefinitionReaderUtils.registerBeanDefinition(definitionHolder, this.registry);
      \n}<\/p>\n

      2.3 \u6269\u5c55\u77e5\u8bc6\u70b9<\/h3>\n
        \n
      • \n

        \u914d\u7f6e\u7c7b\u7684\u7279\u6b8a\u5730\u4f4d：\u914d\u7f6e\u7c7b\u672c\u8eab\u4e5f\u662f\u4e00\u4e2aBean，\u4f46\u5176\u6838\u5fc3\u4f5c\u7528\u662f\u4f5c\u4e3a\u201c\u5165\u53e3\u201d，\u540e\u7eed\u901a\u8fc7ConfigurationClassPostProcessor\u89e3\u6790\u914d\u7f6e\u7c7b\u4e2d\u7684@ComponentScan\u3001@Import\u3001@Bean\u7b49\u6ce8\u89e3，\u6279\u91cf\u6ce8\u518c\u5176\u4ed6Bean\u3002<\/p>\n<\/li>\n

      • \n

        @Scope\u6ce8\u89e3\u7684proxyMode\u5c5e\u6027：\u7528\u4e8e\u8bbe\u7f6e\u4f5c\u7528\u57df\u4ee3\u7406\u6a21\u5f0f，\u5982REQUEST\u3001SESSION\u4f5c\u7528\u57df\u7684Bean，\u9700\u8981\u901a\u8fc7\u4ee3\u7406\u6a21\u5f0f\u6ce8\u5165\u5230\u5355\u4f8bBean\u4e2d，\u5426\u5219\u4f1a\u51fa\u73b0\u751f\u547d\u5468\u671f\u4e0d\u5339\u914d\u95ee\u9898\u3002<\/p>\n<\/li>\n

      • \n

        BeanNameGenerator\u7684\u4f5c\u7528：\u9ed8\u8ba4\u4f7f\u7528AnnotationBeanNameGenerator，\u751f\u6210\u89c4\u5219\u4e3a\u201c\u7c7b\u540d\u9996\u5b57\u6bcd\u5c0f\u5199\u201d，\u53ef\u901a\u8fc7\u81ea\u5b9a\u4e49BeanNameGenerator\u4fee\u6539Bean\u540d\u79f0\u751f\u6210\u89c4\u5219\u3002<\/p>\n<\/li>\n<\/ul>\n

        \u56db\u3001\u6b65\u9aa43：\u5bb9\u5668\u5237\u65b0\u6d41\u7a0b（refresh()\u65b9\u6cd5）<\/h2>\n

        refresh()\u662fSpring\u5bb9\u5668\u542f\u52a8\u7684\u6838\u5fc3\u65b9\u6cd5，\u5b9a\u4e49\u4e8eAbstractApplicationContext\u4e2d，\u8d2f\u7a7f\u5bb9\u5668\u542f\u52a8\u7684\u6574\u4e2a\u751f\u547d\u5468\u671f，\u5171\u62c6\u89e3\u4e3a12\u4e2a\u6b65\u9aa4，\u5b8c\u6210BeanFactory\u9884\u5904\u7406\u3001\u540e\u7f6e\u5904\u7406\u5668\u6267\u884c\u3001Bean\u521d\u59cb\u5316\u3001\u7ec4\u4ef6\u521d\u59cb\u5316\u7b49\u6240\u6709\u6838\u5fc3\u64cd\u4f5c\u3002<\/p>\n

        \u6838\u5fc3\u7279\u5f81：refresh()\u65b9\u6cd5\u662f\u540c\u6b65\u65b9\u6cd5（synchronized\u9501），\u786e\u4fdd\u5bb9\u5668\u5237\u65b0\u8fc7\u7a0b\u7ebf\u7a0b\u5b89\u5168；\u65e0\u8bba\u4f55\u79cd\u7c7b\u578b\u7684Spring\u5bb9\u5668（\u7236\u5b50\u5bb9\u5668\u3001Feign\u9694\u79bb\u5bb9\u5668），\u90fd\u4f1a\u8c03\u7528\u6b64\u65b9\u6cd5\u5b8c\u6210\u521d\u59cb\u5316\u3002<\/p>\n

        3.1 refresh()\u65b9\u6cd5\u6574\u4f53\u6e90\u7801<\/h3>\n

        public void refresh() throws BeansException, IllegalStateException {
        \nsynchronized (this.startupShutdownMonitor) {
        \n\/\/ 1. \u5237\u65b0\u524d\u7684\u9884\u5904\u7406
        \nprepareRefresh();<\/p>\n

        \/\/ 2. \u83b7\u53d6BeanFactory（DefaultListableBeanFactory）
        \nConfigurableListableBeanFactory beanFactory = obtainFreshBeanFactory();<\/p>\n

        \/\/ 3. \u9884\u5904\u7406BeanFactory，\u6dfb\u52a0\u6838\u5fc3\u7ec4\u4ef6
        \nprepareBeanFactory(beanFactory);<\/p>\n

        try {
        \n\/\/ 4. \u5b50\u7c7b\u6269\u5c55：BeanFactory\u9884\u5904\u7406\u540e\u8fdb\u4e00\u6b65\u8bbe\u7f6e
        \npostProcessBeanFactory(beanFactory);<\/p>\n

        \/\/ 5. \u6267\u884cBeanFactory\u540e\u7f6e\u5904\u7406\u5668（\u89e3\u6790\u914d\u7f6e\u7c7b\u3001\u6279\u91cf\u6ce8\u518cBeanDefinition）
        \ninvokeBeanFactoryPostProcessors(beanFactory);<\/p>\n

        \/\/ 6. \u6ce8\u518cBean\u540e\u7f6e\u5904\u7406\u5668（\u5e72\u9884Bean\u521b\u5efa\u6d41\u7a0b）
        \nregisterBeanPostProcessors(beanFactory);<\/p>\n

        \/\/ 7. \u521d\u59cb\u5316\u56fd\u9645\u5316\u7ec4\u4ef6（MessageSource）
        \ninitMessageSource();<\/p>\n

        \/\/ 8. \u521d\u59cb\u5316\u4e8b\u4ef6\u6d3e\u53d1\u5668（ApplicationEventMulticaster）
        \ninitApplicationEventMulticaster();<\/p>\n

        \/\/ 9. \u5b50\u7c7b\u6269\u5c55：\u5bb9\u5668\u5237\u65b0\u65f6\u81ea\u5b9a\u4e49\u903b\u8f91（Web\u573a\u666f\u5e38\u7528）
        \nonRefresh();<\/p>\n

        \/\/ 10. \u6ce8\u518c\u76d1\u542c\u5668，\u6d3e\u53d1\u65e9\u671f\u4e8b\u4ef6
        \nregisterListeners();<\/p>\n

        \/\/ 11. \u521d\u59cb\u5316\u6240\u6709\u975e\u61d2\u52a0\u8f7d\u5355\u4f8bBean（\u6838\u5fc3\u6b65\u9aa4）
        \nfinishBeanFactoryInitialization(beanFactory);<\/p>\n

        \/\/ 12. \u5bb9\u5668\u5237\u65b0\u5b8c\u6210，\u53d1\u5e03\u4e8b\u4ef6
        \nfinishRefresh();
        \n}<\/p>\n

        catch (BeansException ex) {
        \nif (logger.isWarnEnabled()) {
        \nlogger.warn("Exception encountered during context initialization – " +
        \n"cancelling refresh attempt: " + ex);
        \n}<\/p>\n

        \/\/ \u9500\u6bc1\u5df2\u521b\u5efa\u7684Bean，\u907f\u514d\u8d44\u6e90\u6cc4\u6f0f
        \ndestroyBeans();<\/p>\n

        \/\/ \u91cd\u7f6e\u5bb9\u5668\u6fc0\u6d3b\u72b6\u6001
        \ncancelRefresh(ex);<\/p>\n

        \/\/ \u629b\u51fa\u5f02\u5e38，\u544a\u77e5\u542f\u52a8\u5931\u8d25
        \nthrow ex;
        \n}<\/p>\n

        finally {
        \n\/\/ \u6e05\u9664Spring\u5185\u6838\u4e2d\u7684\u4e34\u65f6\u7f13\u5b58（\u5982\u7c7b\u52a0\u8f7d\u5668\u7f13\u5b58）
        \nresetCommonCaches();
        \n}
        \n}
        \n}<\/p>\n

        3.2 \u9010\u6b65\u9aa4\u8be6\u7ec6\u89e3\u6790<\/h3>\n

        \u6b65\u9aa41：prepareRefresh()\u2014\u2014\u5237\u65b0\u524d\u9884\u5904\u7406<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u521d\u59cb\u5316\u5bb9\u5668\u73af\u5883\u3001\u6821\u9a8c\u5c5e\u6027\u5408\u6cd5\u6027\u3001\u4fdd\u5b58\u65e9\u671f\u4e8b\u4ef6，\u4e3a\u540e\u7eed\u5237\u65b0\u64cd\u4f5c\u505a\u51c6\u5907\u3002<\/p>\n

      • \n

        initPropertySources()：\u521d\u59cb\u5316\u5c5e\u6027\u6e90，\u5b50\u7c7b\u53ef\u91cd\u5199\u6b64\u65b9\u6cd5\u81ea\u5b9a\u4e49\u5c5e\u6027\u8bbe\u7f6e（\u5982\u6dfb\u52a0\u81ea\u5b9a\u4e49\u914d\u7f6e\u6587\u4ef6）\u3002\u9ed8\u8ba4\u5b9e\u73b0\u4e3a\u7a7a，\u7559\u7ed9\u7528\u6237\u6269\u5c55\u3002<\/p>\n<\/li>\n

      • \n

        validateRequiredProperties()：\u6821\u9a8c\u5bb9\u5668\u73af\u5883\u4e2d\u7684\u5fc5\u586b\u5c5e\u6027（\u901a\u8fc7@Required\u6ce8\u89e3\u6216\u914d\u7f6e\u6587\u4ef6\u6307\u5b9a），\u82e5\u7f3a\u5931\u5219\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n<\/li>\n

      • \n

        \u521d\u59cb\u5316\u65e9\u671f\u4e8b\u4ef6\u96c6\u5408：\u521b\u5efaLinkedHashSet<ApplicationEvent>\u5b58\u50a8\u65e9\u671f\u4e8b\u4ef6（\u5728\u4e8b\u4ef6\u6d3e\u53d1\u5668\u521d\u59cb\u5316\u524d\u4ea7\u751f\u7684\u4e8b\u4ef6），\u540e\u7eed\u4f1a\u7edf\u4e00\u6d3e\u53d1\u3002<\/p>\n<\/li>\n

        protected void prepareRefresh() {
        \n\/\/ \u8bb0\u5f55\u5bb9\u5668\u542f\u52a8\u65f6\u95f4
        \nthis.startupDate = System.currentTimeMillis();
        \n\/\/ \u6807\u8bb0\u5bb9\u5668\u4e3a\u6fc0\u6d3b\u72b6\u6001
        \nthis.closed.set(false);
        \nthis.active.set(true);<\/p>\n

        \/\/ \u521d\u59cb\u5316\u5c5e\u6027\u6e90（\u5b50\u7c7b\u6269\u5c55）
        \ninitPropertySources();<\/p>\n

        \/\/ \u6821\u9a8c\u5fc5\u586b\u5c5e\u6027
        \ngetEnvironment().validateRequiredProperties();<\/p>\n

        \/\/ \u521d\u59cb\u5316\u65e9\u671f\u4e8b\u4ef6\u96c6\u5408
        \nif (this.earlyApplicationEvents == null) {
        \nthis.earlyApplicationEvents = new LinkedHashSet<>();
        \n}
        \n} <\/p>\n

        \u6b65\u9aa42：obtainFreshBeanFactory()\u2014\u2014\u83b7\u53d6BeanFactory<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u83b7\u53d6\u6b65\u9aa41\u4e2d\u521d\u59cb\u5316\u7684DefaultListableBeanFactory，\u786e\u4fddBeanFactory\u5904\u4e8e\u53ef\u7528\u72b6\u6001\u3002<\/p>\n

      • \n

        refreshBeanFactory()：\u5237\u65b0BeanFactory，\u8bbe\u7f6e\u5e8f\u5217\u5316ID（\u786e\u4fdd\u5bb9\u5668\u53ef\u5e8f\u5217\u5316），GenericApplicationContext\u7684\u5b9e\u73b0\u4e3a\u91cd\u7f6eBeanFactory\u5e76\u91cd\u65b0\u5173\u8054\u3002<\/p>\n<\/li>\n

      • \n

        getBeanFactory()：\u8fd4\u56de\u5bb9\u5668\u4e2d\u7684BeanFactory\u5b9e\u4f8b（DefaultListableBeanFactory），\u540e\u7eed\u6240\u6709\u64cd\u4f5c\u5747\u57fa\u4e8e\u6b64BeanFactory\u3002<\/p>\n<\/li>\n

        \u6269\u5c55：\u6b64\u6b65\u9aa4\u786e\u4fddBeanFactory\u662f\u6700\u65b0\u72b6\u6001，\u907f\u514d\u56e0\u5bb9\u5668\u91cd\u590d\u5237\u65b0\u5bfc\u81f4\u7684BeanFactory\u4e0d\u4e00\u81f4\u95ee\u9898\u3002<\/p>\n

        \u6b65\u9aa43：prepareBeanFactory()\u2014\u2014BeanFactory\u9884\u5904\u7406<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u5411BeanFactory\u6dfb\u52a0\u6838\u5fc3\u7ec4\u4ef6\u3001\u8bbe\u7f6e\u57fa\u7840\u914d\u7f6e，\u786e\u4fddBeanFactory\u5177\u5907Bean\u521b\u5efa\u548c\u7ba1\u7406\u7684\u57fa\u7840\u80fd\u529b\u3002<\/p>\n

      • \n

        \u57fa\u7840\u914d\u7f6e\u8bbe\u7f6e：\u8bbe\u7f6eBeanFactory\u7684\u7c7b\u52a0\u8f7d\u5668\u3001\u8868\u8fbe\u5f0f\u89e3\u6790\u5668（\u5904\u7406SpEL\u8868\u8fbe\u5f0f）\u3001\u7c7b\u578b\u8f6c\u6362\u5668\u7b49\u3002<\/p>\n<\/li>\n

      • \n

        \u6dfb\u52a0BeanPostProcessor：ApplicationContextAwareProcessor：\u7528\u4e8e\u5904\u7406Aware\u63a5\u53e3（EnvironmentAware\u3001ResourceLoaderAware\u7b49），\u5c06\u5bb9\u5668\u7ec4\u4ef6\u6ce8\u5165\u5230Bean\u4e2d\u3002<\/p>\n<\/li>\n

      • \n

        \u8bbe\u7f6e\u5ffd\u7565\u81ea\u52a8\u88c5\u914d\u7684\u63a5\u53e3：EnvironmentAware\u3001EmbeddedValueResolverAware\u7b49\u63a5\u53e3，\u907f\u514d\u8fd9\u4e9b\u63a5\u53e3\u88ab@Autowired\u81ea\u52a8\u6ce8\u5165，\u800c\u662f\u901a\u8fc7ApplicationContextAwareProcessor\u624b\u52a8\u6ce8\u5165\u3002<\/p>\n<\/li>\n

      • \n

        \u6ce8\u518c\u53ef\u81ea\u52a8\u88c5\u914d\u7684\u7ec4\u4ef6：\u5411BeanFactory\u6ce8\u518cBeanFactory\u3001ResourceLoader\u3001ApplicationEventPublisher\u3001ApplicationContext\u7b49\u7ec4\u4ef6，\u5141\u8bb8Bean\u901a\u8fc7@Autowired\u81ea\u52a8\u6ce8\u5165\u8fd9\u4e9b\u5bb9\u5668\u7ec4\u4ef6\u3002<\/p>\n<\/li>\n

      • \n

        \u6dfb\u52a0BeanPostProcessor：ApplicationListenerDetector：\u68c0\u6d4bBean\u662f\u5426\u4e3aApplicationListener\u7c7b\u578b，\u82e5\u662f\u5219\u6ce8\u518c\u5230\u5bb9\u5668\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u96c6\u5408\u4e2d\u3002<\/p>\n<\/li>\n

      • \n

        \u652f\u6301AspectJ\u7f16\u8bd1\u65f6\u7ec7\u5165：\u82e5\u5b58\u5728AspectJ\u76f8\u5173\u7c7b，\u5411BeanFactory\u6dfb\u52a0AspectJWeavingEnabler，\u652f\u6301AOP\u5207\u9762\u7ec7\u5165\u3002<\/p>\n<\/li>\n

      • \n

        \u6ce8\u518c\u7cfb\u7edf\u7ec4\u4ef6：\u5411BeanFactory\u6ce8\u518cenvironment（\u73af\u5883\u53d8\u91cf）\u3001systemProperties（\u7cfb\u7edf\u5c5e\u6027）\u3001systemEnvironment（\u7cfb\u7edf\u73af\u5883\u53d8\u91cf）\u4e09\u4e2a\u7ec4\u4ef6，\u4f9bBean\u83b7\u53d6\u7cfb\u7edf\u4fe1\u606f\u3002<\/p>\n<\/li>\n

        \u6b65\u9aa44：postProcessBeanFactory()\u2014\u2014\u5b50\u7c7b\u6269\u5c55\u9884\u5904\u7406<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u7559\u7ed9\u5b50\u7c7b（\u5982WebApplicationContext）\u91cd\u5199，\u5728BeanFactory\u9884\u5904\u7406\u5b8c\u6210\u540e\u505a\u8fdb\u4e00\u6b65\u5b9a\u5236\u5316\u914d\u7f6e\u3002\u4f8b\u5982，Spring MVC\u7684AnnotationConfigWebApplicationContext\u4f1a\u91cd\u5199\u6b64\u65b9\u6cd5，\u6ce8\u518cSpring MVC\u76f8\u5173\u7684BeanPostProcessor\u3002<\/p>\n

        \u6269\u5c55：\u666e\u901aJava Config\u573a\u666f\u4e0b，\u6b64\u65b9\u6cd5\u9ed8\u8ba4\u5b9e\u73b0\u4e3a\u7a7a，\u65e0\u9700\u989d\u5916\u5904\u7406\u3002<\/p>\n

        \u6b65\u9aa45：invokeBeanFactoryPostProcessors()\u2014\u2014\u6267\u884cBeanFactory\u540e\u7f6e\u5904\u7406\u5668<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u6267\u884cBeanFactoryPostProcessor\u63a5\u53e3\u7684\u65b9\u6cd5，\u5e72\u9884BeanFactory\u7684\u914d\u7f6e，\u6838\u5fc3\u662f\u5b8c\u6210\u300c\u914d\u7f6e\u7c7b\u89e3\u6790\u3001\u6279\u91cf\u6ce8\u518cBeanDefinition\u300d（\u7531ConfigurationClassPostProcessor\u5b9e\u73b0）\u3002<\/p>\n

        BeanFactoryPostProcessor\u662fSpring\u7684\u6838\u5fc3\u6269\u5c55\u70b9，\u5206\u4e3a\u4e24\u7c7b：BeanDefinitionRegistryPostProcessor（\u4f18\u5148\u6267\u884c，\u7528\u4e8e\u6ce8\u518cBeanDefinition）\u548cBeanFactoryPostProcessor（\u540e\u6267\u884c，\u7528\u4e8e\u4fee\u6539BeanDefinition）\u3002<\/p>\n

      • \n

        \u6267\u884cBeanDefinitionRegistryPostProcessor：<\/p>\n

      • \n

        \u83b7\u53d6\u6240\u6709\u5b9e\u73b0BeanDefinitionRegistryPostProcessor\u63a5\u53e3\u7684Bean\u3002<\/p>\n<\/li>\n

      • \n

        \u6309\u4f18\u5148\u7ea7\u6267\u884c：\u5148\u6267\u884c\u5b9e\u73b0PriorityOrdered\u63a5\u53e3\u7684，\u518d\u6267\u884c\u5b9e\u73b0Ordered\u63a5\u53e3\u7684，\u6700\u540e\u6267\u884c\u65e0\u4f18\u5148\u7ea7\u7684\u3002<\/p>\n<\/li>\n

      • \n

        \u6838\u5fc3\u903b\u8f91：ConfigurationClassPostProcessor\u4f1a\u89e3\u6790\u914d\u7f6e\u7c7b\u4e2d\u7684@ComponentScan\u6ce8\u89e3，\u626b\u63cf\u6307\u5b9a\u5305\u4e0b\u7684Bean\u5e76\u6ce8\u518cBeanDefinition；\u89e3\u6790@Import\u3001@Bean\u6ce8\u89e3，\u6ce8\u518c\u5bf9\u5e94BeanDefinition\u3002<\/p>\n<\/li>\n<\/li>\n

      • \n

        \u6267\u884cBeanFactoryPostProcessor：<\/p>\n

      • \n

        \u83b7\u53d6\u6240\u6709\u5b9e\u73b0BeanFactoryPostProcessor\u63a5\u53e3\u7684Bean\u3002<\/p>\n<\/li>\n

      • \n

        \u6309\u4f18\u5148\u7ea7\u6267\u884c（\u540c\u4e0a\u8ff0\u4f18\u5148\u7ea7\u89c4\u5219）\u3002<\/p>\n<\/li>\n

      • \n

        \u6838\u5fc3\u903b\u8f91：\u4fee\u6539\u5df2\u6ce8\u518c\u7684BeanDefinition（\u5982\u4fee\u6539Bean\u7684\u5c5e\u6027\u3001\u4f5c\u7528\u57df\u7b49）\u3002<\/p>\n<\/li>\n<\/li>\n

        \u6269\u5c55：\u6b64\u6b65\u9aa4\u662fBeanDefinition\u6ce8\u518c\u7684\u6838\u5fc3，\u5927\u90e8\u5206Bean（\u5982@Service\u3001@Controller\u6807\u6ce8\u7684\u7c7b）\u90fd\u662f\u901a\u8fc7\u6b64\u6b65\u9aa4\u6279\u91cf\u6ce8\u518c\u5230\u5bb9\u5668\u4e2d\u7684\u3002<\/p>\n

        \u6b65\u9aa46：registerBeanPostProcessors()\u2014\u2014\u6ce8\u518cBean\u540e\u7f6e\u5904\u7406\u5668<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u5c06\u5bb9\u5668\u4e2d\u6240\u6709BeanPostProcessor\u6ce8\u518c\u5230BeanFactory\u4e2d，\u540e\u7eedBean\u521b\u5efa\u65f6\u4f1a\u8c03\u7528\u8fd9\u4e9b\u540e\u7f6e\u5904\u7406\u5668，\u5e72\u9884Bean\u7684\u521d\u59cb\u5316\u6d41\u7a0b（\u5982\u81ea\u52a8\u6ce8\u5165\u3001\u4ee3\u7406\u521b\u5efa\u3001\u5faa\u73af\u4f9d\u8d56\u5904\u7406）\u3002<\/p>\n

      • \n

        \u83b7\u53d6\u6240\u6709BeanPostProcessor：\u4eceBeanFactory\u4e2d\u83b7\u53d6\u6240\u6709\u5b9e\u73b0BeanPostProcessor\u63a5\u53e3\u7684BeanDefinition\u3002<\/p>\n<\/li>\n

      • \n

        \u6309\u4f18\u5148\u7ea7\u6ce8\u518c：<\/p>\n

      • \n

        \u5148\u6ce8\u518c\u5b9e\u73b0PriorityOrdered\u63a5\u53e3\u7684BeanPostProcessor\u3002<\/p>\n<\/li>\n

      • \n

        \u518d\u6ce8\u518c\u5b9e\u73b0Ordered\u63a5\u53e3\u7684BeanPostProcessor\u3002<\/p>\n<\/li>\n

      • \n

        \u6700\u540e\u6ce8\u518c\u65e0\u4f18\u5148\u7ea7\u7684BeanPostProcessor\u3002<\/p>\n<\/li>\n

      • \n

        \u5355\u72ec\u6ce8\u518cMergedBeanDefinitionPostProcessor\u7c7b\u578b\u7684\u540e\u7f6e\u5904\u7406\u5668（\u7528\u4e8e\u5408\u5e76BeanDefinition\u5143\u4fe1\u606f）\u3002<\/p>\n<\/li>\n<\/li>\n

      • \n

        \u6ce8\u518cApplicationListenerDetector：\u786e\u4fdd\u76d1\u542c\u5668Bean\u88ab\u6b63\u786e\u8bc6\u522b\u5e76\u6ce8\u518c\u3002<\/p>\n<\/li>\n

        \u6269\u5c55：\u65e0\u4ee3\u7406\u6a21\u5f0f\u4e0b，\u5bb9\u5668\u9ed8\u8ba4\u6ce8\u518c6\u4e2aBeanPostProcessor，\u5206\u522b\u662f：ApplicationContextAwareProcessor\u3001ConfigurationClassPostProcessorsAwareBeanPostProcessor\u3001PostProcessorRegistrationDelegate\u3001CommonAnnotationBeanPostProcessor\u3001AutowiredAnnotationBeanPostProcessor\u3001ApplicationListenerDetector\u3002<\/p>\n

        \u6b65\u9aa47：initMessageSource()\u2014\u2014\u521d\u59cb\u5316\u56fd\u9645\u5316\u7ec4\u4ef6<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u521d\u59cb\u5316MessageSource\u7ec4\u4ef6，\u652f\u6301\u56fd\u9645\u5316\u6d88\u606f\u7ed1\u5b9a\u548c\u89e3\u6790（\u5982\u591a\u8bed\u8a00\u914d\u7f6e\u6587\u4ef6）\u3002<\/p>\n

      • \n

        \u68c0\u67e5\u5bb9\u5668\u4e2d\u662f\u5426\u5b58\u5728id\u4e3a\u201cmessageSource\u201d\u4e14\u7c7b\u578b\u4e3aMessageSource\u7684Bean，\u5b58\u5728\u5219\u76f4\u63a5\u4f7f\u7528\u3002<\/p>\n<\/li>\n

      • \n

        \u4e0d\u5b58\u5728\u5219\u521b\u5efaDelegatingMessageSource（\u9ed8\u8ba4\u5b9e\u73b0），\u4f5c\u4e3a\u9ed8\u8ba4\u7684MessageSource\u7ec4\u4ef6\u3002<\/p>\n<\/li>\n

      • \n

        \u5c06MessageSource\u6ce8\u518c\u5230BeanFactory\u4e2d，\u4f9b\u5176\u4ed6Bean\u901a\u8fc7@Autowired\u81ea\u52a8\u6ce8\u5165，\u7528\u4e8e\u83b7\u53d6\u56fd\u9645\u5316\u6d88\u606f\u3002<\/p>\n<\/li>\n

        \u6b65\u9aa48：initApplicationEventMulticaster()\u2014\u2014\u521d\u59cb\u5316\u4e8b\u4ef6\u6d3e\u53d1\u5668<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u521d\u59cb\u5316\u4e8b\u4ef6\u6d3e\u53d1\u5668，\u8d1f\u8d23\u4e8b\u4ef6\u7684\u53d1\u5e03\u548c\u76d1\u542c\u5668\u7684\u7ba1\u7406，\u652f\u6491Spring\u7684\u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b\u3002<\/p>\n

      • \n

        \u68c0\u67e5\u5bb9\u5668\u4e2d\u662f\u5426\u5b58\u5728\u81ea\u5b9a\u4e49\u7684ApplicationEventMulticaster Bean，\u5b58\u5728\u5219\u76f4\u63a5\u4f7f\u7528\u3002<\/p>\n<\/li>\n

      • \n

        \u4e0d\u5b58\u5728\u5219\u521b\u5efaSimpleApplicationEventMulticaster（\u9ed8\u8ba4\u5b9e\u73b0），\u4f5c\u4e3a\u4e8b\u4ef6\u6d3e\u53d1\u5668\u3002<\/p>\n<\/li>\n

      • \n

        \u5c06\u4e8b\u4ef6\u6d3e\u53d1\u5668\u6ce8\u518c\u5230BeanFactory\u4e2d，\u4f9b\u5176\u4ed6\u7ec4\u4ef6\u53d1\u5e03\u548c\u63a5\u6536\u4e8b\u4ef6\u3002<\/p>\n<\/li>\n

        \u6b65\u9aa49：onRefresh()\u2014\u2014\u5b50\u7c7b\u6269\u5c55\u5237\u65b0\u903b\u8f91<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u7559\u7ed9\u5b50\u7c7b\u91cd\u5199，\u5728\u5bb9\u5668\u5237\u65b0\u8fc7\u7a0b\u4e2d\u6dfb\u52a0\u81ea\u5b9a\u4e49\u903b\u8f91\u3002\u4f8b\u5982，Spring MVC\u7684WebApplicationContext\u4f1a\u91cd\u5199\u6b64\u65b9\u6cd5，\u521d\u59cb\u5316DispatcherServlet；Spring Boot\u7684EmbeddedWebApplicationContext\u4f1a\u91cd\u5199\u6b64\u65b9\u6cd5，\u542f\u52a8\u5d4c\u5165\u5f0f\u670d\u52a1\u5668（Tomcat\u3001Jetty）\u3002<\/p>\n

        \u6b65\u9aa410：registerListeners()\u2014\u2014\u6ce8\u518c\u76d1\u542c\u5668<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u5c06\u5bb9\u5668\u4e2d\u7684ApplicationListener\u6ce8\u518c\u5230\u4e8b\u4ef6\u6d3e\u53d1\u5668\u4e2d，\u5e76\u6d3e\u53d1\u65e9\u671f\u4e8b\u4ef6\u3002<\/p>\n

      • \n

        \u83b7\u53d6\u5bb9\u5668\u4e2d\u6240\u6709ApplicationListener\u7c7b\u578b\u7684Bean，\u6ce8\u518c\u5230\u4e8b\u4ef6\u6d3e\u53d1\u5668\u4e2d\u3002<\/p>\n<\/li>\n

      • \n

        \u6d3e\u53d1\u6b65\u9aa41\u4e2d\u4fdd\u5b58\u7684\u65e9\u671f\u4e8b\u4ef6（earlyApplicationEvents），\u786e\u4fdd\u65e9\u671f\u4e8b\u4ef6\u88ab\u6b63\u786e\u5904\u7406\u3002<\/p>\n<\/li>\n

        \u6b65\u9aa411：finishBeanFactoryInitialization()\u2014\u2014\u521d\u59cb\u5316\u975e\u61d2\u52a0\u8f7d\u5355\u4f8bBean<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u521d\u59cb\u5316\u5bb9\u5668\u4e2d\u6240\u6709\u975e\u61d2\u52a0\u8f7d\u7684\u5355\u4f8bBean，\u5b8c\u6210Bean\u7684\u521b\u5efa\u3001\u4f9d\u8d56\u6ce8\u5165\u3001\u521d\u59cb\u5316\u65b9\u6cd5\u6267\u884c\u7b49\u6838\u5fc3\u64cd\u4f5c，\u662frefresh()\u65b9\u6cd5\u4e2d\u6700\u6838\u5fc3\u7684\u6b65\u9aa4\u4e4b\u4e00\u3002<\/p>\n

      • \n

        \u83b7\u53d6\u6240\u6709BeanDefinition\u540d\u79f0：\u904d\u5386BeanFactory\u4e2d\u6ce8\u518c\u7684\u6240\u6709BeanDefinition\u7684\u540d\u79f0\u3002<\/p>\n<\/li>\n

      • \n

        \u5408\u5e76BeanDefinition：\u5c06BeanDefinition\u4e0e\u5176\u7236\u7c7bBeanDefinition\u5408\u5e76，\u751f\u6210RootBeanDefinition（\u5305\u542b\u5b8c\u6574\u7684Bean\u5143\u4fe1\u606f）\u3002<\/p>\n<\/li>\n

      • \n

        \u7b5b\u9009\u5355\u4f8b\u3001\u975e\u62bd\u8c61\u3001\u975e\u61d2\u52a0\u8f7dBean：\u4ec5\u5bf9\u6ee1\u8db3\u201c\u5355\u4f8b（singleton）\u3001\u975e\u62bd\u8c61（abstract=false）\u3001\u975e\u61d2\u52a0\u8f7d（lazy-init=false）\u201d\u6761\u4ef6\u7684Bean\u6267\u884c\u521d\u59cb\u5316\u3002<\/p>\n<\/li>\n

      • \n

        Bean\u521b\u5efa\u6d41\u7a0b：\u901a\u8fc7getBean()\u65b9\u6cd5\u89e6\u53d1Bean\u521b\u5efa，\u6838\u5fc3\u6d41\u7a0b\u5305\u62ec：<\/p>\n

      • \n

        \u5b9e\u4f8b\u5316Bean（\u901a\u8fc7\u6784\u9020\u65b9\u6cd5\u521b\u5efa\u5bf9\u8c61）\u3002<\/p>\n<\/li>\n

      • \n

        \u5c5e\u6027\u6ce8\u5165（@Autowired\u3001@Resource\u7b49\u6ce8\u89e3\u7684\u81ea\u52a8\u6ce8\u5165，\u5904\u7406\u5faa\u73af\u4f9d\u8d56）\u3002<\/p>\n<\/li>\n

      • \n

        \u521d\u59cb\u5316\u524d（BeanPostProcessor#postProcessBeforeInitialization）：\u5982AOP\u4ee3\u7406\u521b\u5efa\u3002<\/p>\n<\/li>\n

      • \n

        \u521d\u59cb\u5316\u65b9\u6cd5\u6267\u884c（@PostConstruct\u6ce8\u89e3\u65b9\u6cd5\u3001InitializingBean#afterPropertiesSet()\u3001\u81ea\u5b9a\u4e49init-method）\u3002<\/p>\n<\/li>\n

      • \n

        \u521d\u59cb\u5316\u540e（BeanPostProcessor#postProcessAfterInitialization）：\u5982AOP\u4ee3\u7406\u589e\u5f3a\u3002<\/p>\n<\/li>\n<\/li>\n

      • \n

        \u6267\u884cSmartInitializingSingleton#afterSingletonsInstantiated()：\u6240\u6709\u5355\u4f8bBean\u521d\u59cb\u5316\u5b8c\u6210\u540e，\u6267\u884c\u6b64\u65b9\u6cd5（\u6269\u5c55\u70b9，\u7528\u4e8e\u540e\u7eed\u5904\u7406）\u3002<\/p>\n<\/li>\n

        \u6269\u5c55：\u61d2\u52a0\u8f7dBean（@Lazy\u6ce8\u89e3）\u4f1a\u5728\u9996\u6b21\u8c03\u7528getBean()\u65f6\u521d\u59cb\u5316，\u800c\u975e\u6b64\u6b65\u9aa4\u3002<\/p>\n

        \u6b65\u9aa412：finishRefresh()\u2014\u2014\u5bb9\u5668\u5237\u65b0\u5b8c\u6210<\/h4>\n

        \u6838\u5fc3\u76ee\u7684：\u5b8c\u6210\u5bb9\u5668\u5237\u65b0\u7684\u6536\u5c3e\u5de5\u4f5c，\u53d1\u5e03\u5bb9\u5668\u5237\u65b0\u5b8c\u6210\u4e8b\u4ef6，\u521d\u59cb\u5316\u751f\u547d\u5468\u671f\u5904\u7406\u5668\u3002<\/p>\n

      • \n

        initLifecycleProcessor()：\u521d\u59cb\u5316\u751f\u547d\u5468\u671f\u5904\u7406\u5668（LifecycleProcessor），\u9ed8\u8ba4\u521b\u5efaDefaultLifecycleProcessor，\u7528\u4e8e\u7ba1\u7406Bean\u7684\u751f\u547d\u5468\u671f（start\u3001stop\u65b9\u6cd5）\u3002<\/p>\n<\/li>\n

      • \n

        \u89e6\u53d1LifecycleProcessor#onRefresh()：\u56de\u8c03\u6240\u6709\u5b9e\u73b0Lifecycle\u63a5\u53e3\u7684Bean\u7684start()\u65b9\u6cd5\u3002<\/p>\n<\/li>\n

      • \n

        \u53d1\u5e03ContextRefreshedEvent\u4e8b\u4ef6：\u544a\u77e5\u6240\u6709\u76d1\u542c\u5668\u5bb9\u5668\u5df2\u5237\u65b0\u5b8c\u6210，Bean\u53ef\u6b63\u5e38\u4f7f\u7528\u3002<\/p>\n<\/li>\n

      • \n

        \u6ce8\u518c\u5bb9\u5668\u5230LiveBeansView：\u7528\u4e8e\u76d1\u63a7\u5bb9\u5668\u4e2d\u7684Bean\u72b6\u6001（\u4ec5\u5f00\u53d1\u73af\u5883\u751f\u6548）\u3002<\/p>\n<\/li>\n

        3.3 \u5faa\u73af\u4f9d\u8d56\u95ee\u9898<\/h3>\n
          \n
        • \n

          \u5faa\u73af\u4f9d\u8d56\u5904\u7406：Spring\u901a\u8fc7\u201c\u4e09\u7ea7\u7f13\u5b58\u201d\u89e3\u51b3\u5355\u4f8bBean\u7684\u5faa\u73af\u4f9d\u8d56，\u6838\u5fc3\u662f\u63d0\u524d\u66b4\u9732\u672a\u521d\u59cb\u5316\u5b8c\u6210\u7684Bean\u5b9e\u4f8b，\u5728\u6b65\u9aa411\u7684\u5c5e\u6027\u6ce8\u5165\u9636\u6bb5\u4f7f\u7528\u3002<\/p>\n<\/li>\n

        • \n

          1. \u4ec0\u4e48\u662f\u5faa\u73af\u4f9d\u8d56：\u4e24\u4e2a\u6216\u591a\u4e2aBean\u76f8\u4e92\u4f9d\u8d56\u5f62\u6210\u95ed\u73af，\u5982A\u4f9d\u8d56B，B\u53c8\u4f9d\u8d56A；\u6216A\u4f9d\u8d56B\u3001B\u4f9d\u8d56C\u3001C\u4f9d\u8d56A\u3002<\/p>\n<\/li>\n

        • \n

          2. \u652f\u6301\u8303\u56f4：\u4ec5\u652f\u6301\u5355\u4f8bBean\u7684\u5faa\u73af\u4f9d\u8d56，\u539f\u578b（Prototype）Bean\u4e0d\u652f\u6301（\u6bcf\u6b21\u83b7\u53d6\u90fd\u65b0\u5efa\u5b9e\u4f8b，\u65e0\u6cd5\u63d0\u524d\u66b4\u9732），\u6784\u9020\u65b9\u6cd5\u6ce8\u5165\u7684\u5355\u4f8bBean\u4e5f\u4e0d\u652f\u6301（\u5b9e\u4f8b\u5316\u524d\u5c31\u9700\u8981\u4f9d\u8d56\u5bf9\u8c61）\u3002<\/p>\n<\/li>\n

        • \n

          3. \u4e09\u7ea7\u7f13\u5b58\u6838\u5fc3\u673a\u5236：<\/p>\n<\/li>\n

        • \n

          \u4e00\u7ea7\u7f13\u5b58（singletonObjects）：\u5b58\u50a8\u5b8c\u5168\u521d\u59cb\u5316\u5b8c\u6210\u7684\u5355\u4f8bBean，\u4f9b\u5916\u90e8\u83b7\u53d6\u3002<\/p>\n<\/li>\n

        • \n

          \u4e8c\u7ea7\u7f13\u5b58（earlySingletonObjects）：\u5b58\u50a8\u63d0\u524d\u66b4\u9732\u7684\u3001\u672a\u5b8c\u6210\u5c5e\u6027\u6ce8\u5165\u548c\u521d\u59cb\u5316\u7684\u5355\u4f8bBean\u5b9e\u4f8b，\u7528\u4e8e\u89e3\u51b3\u5faa\u73af\u4f9d\u8d56\u65f6\u7684\u4e34\u65f6\u83b7\u53d6\u3002<\/p>\n<\/li>\n

        • \n

          \u4e09\u7ea7\u7f13\u5b58（singletonFactories）：\u5b58\u50a8Bean\u7684\u5b9e\u4f8b\u5de5\u5382（ObjectFactory），\u7528\u4e8e\u5ef6\u8fdf\u521b\u5efaBean\u7684\u65e9\u671f\u5b9e\u4f8b（\u82e5Bean\u9700\u8981AOP\u4ee3\u7406，\u53ef\u901a\u8fc7\u5de5\u5382\u751f\u6210\u4ee3\u7406\u5b9e\u4f8b\u540e\u66b4\u9732）\u3002<\/p>\n<\/li>\n<\/ul>\n

          \u5177\u4f53\u6d41\u7a0b:<\/p>\n

        • \n

          A\u5f00\u59cb\u5b9e\u4f8b\u5316（\u901a\u8fc7\u6784\u9020\u65b9\u6cd5\u521b\u5efa\u5bf9\u8c61），\u672a\u5b8c\u6210\u5c5e\u6027\u6ce8\u5165\u548c\u521d\u59cb\u5316，\u5c06A\u7684\u5b9e\u4f8b\u5de5\u5382\u5b58\u5165\u4e09\u7ea7\u7f13\u5b58\u3002<\/p>\n<\/li>\n

        • \n

          A\u9700\u8981\u6ce8\u5165B，\u5bb9\u5668\u5c1d\u8bd5\u83b7\u53d6B，\u53d1\u73b0B\u672a\u5b9e\u4f8b\u5316，\u5f00\u59cb\u5b9e\u4f8b\u5316B\u3002<\/p>\n<\/li>\n

        • \n

          B\u5b9e\u4f8b\u5316\u540e，\u9700\u8981\u6ce8\u5165A，\u5bb9\u5668\u4ece\u4e09\u7ea7\u7f13\u5b58\u83b7\u53d6A\u7684\u5b9e\u4f8b\u5de5\u5382，\u751f\u6210A\u7684\u65e9\u671f\u5b9e\u4f8b（\u82e5\u6709AOP\u4ee3\u7406\u5219\u751f\u6210\u4ee3\u7406\u5b9e\u4f8b），\u5b58\u5165\u4e8c\u7ea7\u7f13\u5b58，\u5220\u9664\u4e09\u7ea7\u7f13\u5b58\u4e2d\u7684A\u5de5\u5382\u3002<\/p>\n<\/li>\n

        • \n

          B\u6ce8\u5165A\u7684\u65e9\u671f\u5b9e\u4f8b，\u5b8c\u6210\u5c5e\u6027\u6ce8\u5165\u3001\u521d\u59cb\u5316，\u6210\u4e3a\u5b8c\u6574Bean，\u5b58\u5165\u4e00\u7ea7\u7f13\u5b58\u3002<\/p>\n<\/li>\n

        • \n

          A\u83b7\u53d6\u5230\u4e00\u7ea7\u7f13\u5b58\u4e2d\u7684\u5b8c\u6574B\u5b9e\u4f8b，\u6ce8\u5165\u5b8c\u6210，\u7ee7\u7eed\u6267\u884c\u521d\u59cb\u5316\u6d41\u7a0b，\u6700\u7ec8\u6210\u4e3a\u5b8c\u6574Bean，\u5b58\u5165\u4e00\u7ea7\u7f13\u5b58，\u5220\u9664\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684A\u65e9\u671f\u5b9e\u4f8b\u3002<\/p>\n<\/li>\n

            \n
          • \n

            AOP\u7684\u89e6\u53d1\u65f6\u673a：AOP\u4ee3\u7406\u7684\u521b\u5efa\u53d1\u751f\u5728Bean\u521d\u59cb\u5316\u524d（postProcessBeforeInitialization），\u589e\u5f3a\u903b\u8f91\u5728\u521d\u59cb\u5316\u540e（postProcessAfterInitialization）\u5b8c\u6210\u3002<\/p>\n<\/li>\n

          • \n

            \u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b：Spring\u7684\u4e8b\u4ef6\u6d3e\u53d1\u57fa\u4e8e\u89c2\u5bdf\u8005\u6a21\u5f0f，\u901a\u8fc7ApplicationEventMulticaster\u8fde\u63a5\u4e8b\u4ef6\u53d1\u5e03\u8005\u548c\u76d1\u542c\u5668，\u652f\u6301\u540c\u6b65\/\u5f02\u6b65\u4e8b\u4ef6\u6d3e\u53d1\u3002<\/p>\n<\/li>\n<\/ul>\n

            \u4e94\u3001\u6574\u4f53\u603b\u7ed3<\/h2>\n

            5.1 \u6838\u5fc3\u6d41\u7a0b\u68b3\u7406<\/h3>\n

            Spring\u5bb9\u5668\u542f\u52a8\u7684\u672c\u8d28\u662f\u300c\u4ece\u914d\u7f6e\u5230Bean\u5b9e\u4f8b\u5316\u7684\u5168\u94fe\u8def\u6d41\u7a0b\u300d：\u901a\u8fc7\u521d\u59cb\u5316\u5bb9\u5668\u7ec4\u4ef6（BeanFactory\u3001\u89e3\u6790\u5668\u3001\u626b\u63cf\u5668）\u642d\u5efa\u57fa\u7840\u73af\u5883，\u6ce8\u518c\u914d\u7f6e\u7c7b\u548c\u5185\u7f6e\u7ec4\u4ef6\u7684BeanDefinition，\u518d\u901a\u8fc7refresh()\u65b9\u6cd5\u768412\u4e2a\u6b65\u9aa4\u5b8c\u6210BeanDefinition\u89e3\u6790\u3001\u540e\u7f6e\u5904\u7406\u5668\u6267\u884c\u3001Bean\u521d\u59cb\u5316\u3001\u7ec4\u4ef6\u88c5\u914d，\u6700\u7ec8\u5f62\u6210\u53ef\u7528\u7684Spring\u5bb9\u5668\u3002<\/p>\n

            5.2\u00a0\u6838\u5fc3\u539f\u5219\u63d0\u70bc<\/h3>\n

            Spring\u5bb9\u5668\u542f\u52a8\u6d41\u7a0b\u59cb\u7ec8\u56f4\u7ed5\u300c\u89e3\u8026\u3001\u6269\u5c55\u3001\u590d\u7528\u300d\u4e09\u5927\u539f\u5219，\u901a\u8fc7\u5927\u91cf\u6269\u5c55\u70b9（\u540e\u7f6e\u5904\u7406\u5668\u3001Aware\u63a5\u53e3\u3001\u4e8b\u4ef6\u673a\u5236）\u5141\u8bb8\u7528\u6237\u5b9a\u5236\u5316\u5f00\u53d1，\u540c\u65f6\u901a\u8fc7\u7edf\u4e00\u7684\u6d41\u7a0b\u7ba1\u7406\u786e\u4fdd\u5bb9\u5668\u7684\u7a33\u5b9a\u6027\u548c\u4e00\u81f4\u6027\u3002\u7406\u89e3Spring\u542f\u52a8\u6d41\u7a0b，\u662f\u638c\u63e1Spring\u5e95\u5c42\u539f\u7406\u3001\u6392\u67e5\u542f\u52a8\u6545\u969c\u3001\u8fdb\u884c\u9ad8\u7ea7\u5b9a\u5236\u5316\u5f00\u53d1\u7684\u57fa\u7840\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

            \u672c\u6587\u57fa\u4e8eSpring Framework\u6e90\u7801，\u4ee5\u300cAnnotationConfigApplicationContext\u300d\u4e3a\u5165\u53e3（Java Config\u65b9\u5f0f），\u5168\u9762\u62c6\u89e3Spring\u5bb9\u5668\u542f\u52a8\u7684\u5b8c\u6574\u6d41\u7a0b，\u5305\u542b\u521d\u59cb\u5316\u3001\u914d\u7f6e\u7c7b\u6ce8\u518c\u3001\u5bb9\u5668\u5237\u65b0\u4e09\u5927\u6838\u5fc3\u6b65\u9aa4，\u7ed3\u5408\u6e90\u7801\u9010\u53e5\u5206\u6790\u5173\u952e\u903b\u8f91，\u8865\u5145\u6838\u5fc3\u6982\u5ff5\u3001\u6269\u5c55\u77e5\u8bc6\u70b9\u53ca\u5b9e\u6218\u5173\u8054，\u52a9\u529b\u6df1\u5165\u7406\u89e3Spring\u5e95\u5c42\u539f\u7406\u3002
            \n\u6838\u5fc3\u524d\u63d0：<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,101,292],"topic":[],"class_list":["post-64584","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-spring","tag-292"],"yoast_head":"\nSpring\u5bb9\u5668\u542f\u52a8\u6d41\u7a0b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/64584.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spring\u5bb9\u5668\u542f\u52a8\u6d41\u7a0b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6587\u57fa\u4e8eSpring Framework\u6e90\u7801，\u4ee5\u300cAnnotationConfigApplicationContext\u300d\u4e3a\u5165\u53e3（Java Config\u65b9\u5f0f），\u5168\u9762\u62c6\u89e3Spring\u5bb9\u5668\u542f\u52a8\u7684\u5b8c\u6574\u6d41\u7a0b，\u5305\u542b\u521d\u59cb\u5316\u3001\u914d\u7f6e\u7c7b\u6ce8\u518c\u3001\u5bb9\u5668\u5237\u65b0\u4e09\u5927\u6838\u5fc3\u6b65\u9aa4，\u7ed3\u5408\u6e90\u7801\u9010\u53e5\u5206\u6790\u5173\u952e\u903b\u8f91，\u8865\u5145\u6838\u5fc3\u6982\u5ff5\u3001\u6269\u5c55\u77e5\u8bc6\u70b9\u53ca\u5b9e\u6218\u5173\u8054，\u52a9\u529b\u6df1\u5165\u7406\u89e3Spring\u5e95\u5c42\u539f\u7406\u3002 \u6838\u5fc3\u524d\u63d0：\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/64584.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-23T11:40:21+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/64584.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/64584.html\",\"name\":\"Spring\u5bb9\u5668\u542f\u52a8\u6d41\u7a0b - 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