fix:fix retry loadbalancer not working bug. (#1157)

CHANGELOG.md

@@ -10,3 +10,4 @@
 - [feat:add swagger exposure filters.](https://github.com/Tencent/spring-cloud-tencent/pull/1144)
 - [feat:add swagger report switch.](https://github.com/Tencent/spring-cloud-tencent/pull/1147)
 - [fix: dynamic routing using cookies.](https://github.com/Tencent/spring-cloud-tencent/pull/1152)
+- [fix:fix retry loadbalancer not working bug.](https://github.com/Tencent/spring-cloud-tencent/pull/1157)

spring-cloud-tencent-examples/polaris-discovery-example/discovery-caller-service/pom.xml

@@ -33,6 +33,11 @@
 			<artifactId>spring-cloud-starter-tencent-polaris-contract</artifactId>
 		</dependency>
 
+		<!--		<dependency>-->
+		<!--			<groupId>org.springframework.retry</groupId>-->
+		<!--			<artifactId>spring-retry</artifactId>-->
+		<!--		</dependency>-->
+
 		<!--		<dependency>-->
 		<!--			<groupId>com.tencent.polaris</groupId>-->
 		<!--			<artifactId>connector-consul</artifactId>-->

spring-cloud-tencent-polaris-loadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/config/PolarisLoadBalancerAutoConfiguration.java

@@ -25,11 +25,11 @@ import com.tencent.cloud.rpc.enhancement.resttemplate.EnhancedRestTemplateInterc
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor;
 import org.springframework.cloud.client.loadbalancer.RestTemplateCustomizer;
+import org.springframework.cloud.client.loadbalancer.RetryLoadBalancerInterceptor;
 import org.springframework.cloud.netflix.ribbon.RibbonAutoConfiguration;
 import org.springframework.cloud.netflix.ribbon.RibbonClients;
 import org.springframework.context.annotation.Bean;
@@ -55,19 +55,23 @@ public class PolarisLoadBalancerAutoConfiguration {
 	}
 
 	@Bean
-	@ConditionalOnMissingBean
-	public RestTemplateCustomizer restTemplateCustomizer(@Autowired(required = false) LoadBalancerInterceptor loadBalancerInterceptor) {
+	public RestTemplateCustomizer restTemplateCustomizer(
+			@Autowired(required = false) RetryLoadBalancerInterceptor retryLoadBalancerInterceptor,
+			@Autowired(required = false) LoadBalancerInterceptor loadBalancerInterceptor) {
 		return restTemplate -> {
 			List<ClientHttpRequestInterceptor> list = new ArrayList<>(restTemplate.getInterceptors());
 			// LoadBalancerInterceptor must invoke before EnhancedRestTemplateInterceptor
-			if (loadBalancerInterceptor != null) {
+			if (retryLoadBalancerInterceptor != null || loadBalancerInterceptor != null) {
 				int addIndex = list.size();
 				for (int i = 0; i < list.size(); i++) {
 					if (list.get(i) instanceof EnhancedRestTemplateInterceptor) {
 						addIndex = i;
 					}
 				}
-				list.add(addIndex, loadBalancerInterceptor);
+				list.add(addIndex,
+						retryLoadBalancerInterceptor != null
+								? retryLoadBalancerInterceptor
+								: loadBalancerInterceptor);
 			}
 			restTemplate.setInterceptors(list);
 		};