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| <h1 id="_1">服务启动事件</h1> |
| <p>java chassis 启动过程中,会广播事件。 业务可以在服务启动的不同阶段执行一些初始化逻辑。 事件类型在 <code>BootListener</code> |
| 里面定义:</p> |
| <pre><code class="language-java">public interface BootListener { |
| enum EventType { |
| BEFORE_HANDLER, |
| AFTER_HANDLER, |
| BEFORE_PRODUCER_PROVIDER, |
| AFTER_PRODUCER_PROVIDER, |
| BEFORE_CONSUMER_PROVIDER, |
| AFTER_CONSUMER_PROVIDER, |
| BEFORE_TRANSPORT, |
| AFTER_TRANSPORT, |
| BEFORE_REGISTRY, |
| AFTER_REGISTRY, |
| BEFORE_CLOSE, |
| AFTER_CLOSE |
| } |
| } |
| </code></pre> |
| <p>自定义事件处理器只需要实现 <code>BootListener</code> 的接口,并且声明为 <code>Component</code> 即可。</p> |
| <pre><code class="language-java">@Component |
| public class AuthHandlerBoot implements BootListener { |
| @Override |
| public void onBootEvent(BootEvent event) { |
| if (EventType.BEFORE_REGISTRY.equals(event.getEventType())) { |
| RSAKeyPairEntry rsaKeyPairEntry = RSAUtils.generateRSAKeyPair(); |
| RSAKeypair4Auth.INSTANCE.setPrivateKey(rsaKeyPairEntry.getPrivateKey()); |
| RSAKeypair4Auth.INSTANCE.setPublicKey(rsaKeyPairEntry.getPublicKey()); |
| RSAKeypair4Auth.INSTANCE.setPublicKeyEncoded(rsaKeyPairEntry.getPublicKeyEncoded()); |
| RegistryUtils.getMicroserviceInstance().getProperties().put(Const.INSTANCE_PUBKEY_PRO, |
| rsaKeyPairEntry.getPublicKeyEncoded()); |
| } |
| } |
| } |
| </code></pre> |
| <p>比如,通过事件处理器,可以在服务注册完成或者服务注册之前进行一些初始化操作。</p> |
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