add auto config

spring-cloud-starter-tencent-polaris-circuitbreaker/src/main/java/com/tencent/cloud/polaris/circuitbreaker/PolarisFeignClientAutoConfiguration.java

@@ -22,7 +22,6 @@ import com.tencent.cloud.polaris.context.PolarisContextAutoConfiguration;
 import com.tencent.polaris.api.core.ConsumerAPI;
 import com.tencent.polaris.client.api.SDKContext;
 import com.tencent.polaris.factory.api.DiscoveryAPIFactory;
-
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
@@ -59,4 +58,5 @@ public class PolarisFeignClientAutoConfiguration {
 		return new PolarisFeignBeanPostProcessor(consumerAPI);
 	}
 
+	
 }

spring-cloud-starter-tencent-polaris-circuitbreaker/src/main/java/com/tencent/cloud/polaris/circuitbreaker/PolarisRestTemplateAutoConfiguration.java

@@ -0,0 +1,35 @@
+package com.tencent.cloud.polaris.circuitbreaker;
+
+import com.tencent.cloud.polaris.context.PolarisContextAutoConfiguration;
+import com.tencent.polaris.api.core.ConsumerAPI;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.AutoConfigureAfter;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * @author : wh
+ * @date : 2022/6/21 21:34
+ * @description:
+ */
+@ConditionalOnProperty(value = "spring.cloud.polaris.circuitbreaker.enabled",
+		havingValue = "true", matchIfMissing = true)
+@Configuration(proxyBeanMethods = false)
+@AutoConfigureAfter(PolarisContextAutoConfiguration.class)
+public class PolarisRestTemplateAutoConfiguration {
+
+	@Bean
+	@ConditionalOnBean(RestTemplate.class)
+	public PolarisRestTemplateResponseErrorHandler polarisRestTemplateResponseErrorHandler(ConsumerAPI consumerAPI, @Autowired(required = false) PolarisResponseErrorHandler polarisResponseErrorHandler) {
+		return new PolarisRestTemplateResponseErrorHandler(consumerAPI, polarisResponseErrorHandler);
+	}
+
+	@Bean
+	@ConditionalOnBean(RestTemplate.class)
+	public PolarisRestTemplateBeanPostProcessor polarisRestTemplateBeanPostProcessor(PolarisRestTemplateResponseErrorHandler restTemplateResponseErrorHandler) {
+		return new PolarisRestTemplateBeanPostProcessor(restTemplateResponseErrorHandler);
+	}
+}

spring-cloud-starter-tencent-polaris-circuitbreaker/src/main/java/com/tencent/cloud/polaris/circuitbreaker/PolarisRestTemplateBeanPostProcessor.java

@@ -0,0 +1,39 @@
+package com.tencent.cloud.polaris.circuitbreaker;
+
+import org.springframework.beans.BeansException;
+import org.springframework.beans.factory.SmartInitializingSingleton;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.Objects;
+
+/**
+ * @author : wh
+ * @date : 2022/6/21 21:20
+ * @description:
+ */
+public class PolarisRestTemplateBeanPostProcessor implements ApplicationContextAware, SmartInitializingSingleton {
+
+	private ApplicationContext applicationContext;
+
+	private final PolarisRestTemplateResponseErrorHandler polarisRestTemplateResponseErrorHandler;
+
+	public PolarisRestTemplateBeanPostProcessor(PolarisRestTemplateResponseErrorHandler polarisRestTemplateResponseErrorHandler) {
+		this.polarisRestTemplateResponseErrorHandler = polarisRestTemplateResponseErrorHandler;
+	}
+
+	@Override
+	public void afterSingletonsInstantiated() {
+		RestTemplate restTemplate = this.applicationContext.getBean(RestTemplate.class);
+		if (Objects.nonNull(restTemplate)) {
+			restTemplate.setErrorHandler(polarisRestTemplateResponseErrorHandler);
+		}
+	}
+
+	@Override
+	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
+		this.applicationContext = applicationContext;
+
+	}
+}

spring-cloud-starter-tencent-polaris-circuitbreaker/src/main/resources/META-INF/spring.factories

@@ -1,4 +1,6 @@
 org.springframework.cloud.bootstrap.BootstrapConfiguration=\
   com.tencent.cloud.polaris.circuitbreaker.PolarisCircuitBreakerBootstrapConfiguration
 org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
-  com.tencent.cloud.polaris.circuitbreaker.PolarisFeignClientAutoConfiguration
+  com.tencent.cloud.polaris.circuitbreaker.PolarisFeignClientAutoConfiguration,\
+  com.tencent.cloud.polaris.circuitbreaker.PolarisRestTemplateAutoConfiguration
+

spring-cloud-tencent-examples/polaris-circuitbreaker-example/polaris-circuitbreaker-example-a/src/main/java/com/tencent/cloud/polaris/circuitbreaker/example/ServiceA.java

@@ -19,7 +19,6 @@
 package com.tencent.cloud.polaris.circuitbreaker.example;
 
 import com.tencent.cloud.polaris.circuitbreaker.PolarisResponseErrorHandler;
-import com.tencent.cloud.polaris.circuitbreaker.PolarisRestTemplateResponseErrorHandler;
 import com.tencent.polaris.api.core.ConsumerAPI;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringApplication;
@@ -45,9 +44,7 @@ public class ServiceA {
 	@Bean
 	@LoadBalanced
 	public RestTemplate restTemplate(ConsumerAPI consumerAPI, @Autowired(required = false) PolarisResponseErrorHandler polarisResponseErrorHandler) {
-		RestTemplate restTemplate = new RestTemplate();
-		restTemplate.setErrorHandler(new PolarisRestTemplateResponseErrorHandler(consumerAPI, polarisResponseErrorHandler));
-		return restTemplate;
+		return new RestTemplate();
 	}
 
 }

spring-cloud-tencent-examples/polaris-circuitbreaker-example/polaris-circuitbreaker-example-a/src/main/java/com/tencent/cloud/polaris/circuitbreaker/example/ServiceAController.java

@@ -48,8 +48,8 @@ public class ServiceAController {
 		return polarisServiceB.info();
 	}
 
-	@GetMapping("/getBServiceInfo1")
-	public String rest() {
+	@GetMapping("/getBServiceInfoByRestTemplate")
+	public String getBServiceInfoByRestTemplate() {
 		return restTemplate.getForObject("http://polaris-circuitbreaker-example-b//example/service/b/info",String.class);
 	}