修复Spring容器二次初始化引入的问题

discovery-plugin-framework/src/main/java/com/nepxion/discovery/plugin/framework/context/PluginApplicationContextInitializer.java

@@ -11,6 +11,7 @@ package com.nepxion.discovery.plugin.framework.context;
 
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.config.InstantiationAwareBeanPostProcessorAdapter;
+import org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext;
 import org.springframework.cloud.client.discovery.DiscoveryClient;
 import org.springframework.context.ApplicationContextInitializer;
 import org.springframework.context.ConfigurableApplicationContext;
@@ -20,18 +21,20 @@ import com.nepxion.discovery.plugin.framework.decorator.DiscoveryClientDecorator
 public abstract class PluginApplicationContextInitializer implements ApplicationContextInitializer<ConfigurableApplicationContext> {
     @Override
     public void initialize(ConfigurableApplicationContext applicationContext) {
-        applicationContext.getBeanFactory().addBeanPostProcessor(new InstantiationAwareBeanPostProcessorAdapter() {
-            @Override
-            public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
-                if (bean instanceof DiscoveryClient) {
-                    DiscoveryClient discoveryClient = (DiscoveryClient) bean;
+        if (applicationContext instanceof AnnotationConfigServletWebServerApplicationContext) {
+            applicationContext.getBeanFactory().addBeanPostProcessor(new InstantiationAwareBeanPostProcessorAdapter() {
+                @Override
+                public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
+                    if (bean instanceof DiscoveryClient) {
+                        DiscoveryClient discoveryClient = (DiscoveryClient) bean;
 
-                    return new DiscoveryClientDecorator(discoveryClient, applicationContext);
-                } else {
-                    return afterInitialization(applicationContext, bean, beanName);
+                        return new DiscoveryClientDecorator(discoveryClient, applicationContext);
+                    } else {
+                        return afterInitialization(applicationContext, bean, beanName);
+                    }
                 }
-            }
-        });
+            });
+        }
     }
 
     protected abstract Object afterInitialization(ConfigurableApplicationContext applicationContext, Object bean, String beanName) throws BeansException;