Fix bootstrap bug for integrated example (#2989)

* Change the external configuration to spring.config.import to import

* Fixed an issue where external configuration could not be introduced

* Fix the problem that the external configuration of the database cannot be imported.

* Fix cross-domain filtering configuration due to springboot version change

* Add dependency of loadbalancer missing.

* Change to map host.

* Delete relevant configs.

* Delete duplicate define.

* Delete duplicate define.

* Follow the nacos example to modify the configured import.

spring-cloud-alibaba-examples/integrated-example/integrated-account/src/main/resources/application.yaml

@@ -11,11 +11,12 @@ spring:
         group: integrated-example
       config:
         server-addr: nacos-server:8848
-        file-extension: yaml
         group: integrated-example
-        shared-configs[0]:
-          dataid: datasource-config.yaml
-          group: integrated-example
+        file-extension: yaml
+  config:
+    import:
+      - optional:nacos:integrated-account.yaml
+      - optional:nacos:datasource-config.yaml
 
 seata:
   application-id: ${spring.application.name}

spring-cloud-alibaba-examples/integrated-example/integrated-gateway/src/main/java/com/alibaba/cloud/integration/gateway/config/GatewayConfig.java

@@ -104,10 +104,10 @@ public class GatewayConfig {
 	public CorsWebFilter corsFilter() {
 		UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
 		CorsConfiguration config = new CorsConfiguration();
-		config.addAllowedOrigin("*");
 		config.setAllowCredentials(true);
 		config.addAllowedHeader("*");
 		config.addAllowedMethod("*");
+		config.addAllowedOriginPattern("*");
 		source.registerCorsConfiguration("/**", config);
 
 		return new CorsWebFilter(source);

spring-cloud-alibaba-examples/integrated-example/integrated-gateway/src/main/resources/application.yaml

@@ -5,10 +5,12 @@ spring:
     name: integrated-gateway
   cloud:
     nacos:
-      discovery:
-        server-addr: nacos-server:8848
-        group: integrated-example
       config:
         server-addr: nacos-server:8848
+        group: integrated-example
         file-extension: yaml
+      discovery:
+        server-addr: nacos-server:8848
         group: integrated-example
+  config:
+    import: optional:nacos:integrated-gateway.yaml

spring-cloud-alibaba-examples/integrated-example/integrated-order/pom.xml

@@ -66,6 +66,12 @@
             <groupId>com.alibaba.cloud</groupId>
             <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
         </dependency>
+
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-loadbalancer</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>com.alibaba.cloud</groupId>
             <artifactId>integrated-common</artifactId>

spring-cloud-alibaba-examples/integrated-example/integrated-order/src/main/resources/application.yaml

@@ -11,11 +11,12 @@ spring:
         group: integrated-example
       config:
         server-addr: nacos-server:8848
-        file-extension: yaml
         group: integrated-example
-        shared-configs[0]:
-          dataid: datasource-config.yaml
-          group: integrated-example
+        file-extension: yaml
+  config:
+    import:
+      - optional:nacos:integrated-order.yaml
+      - optional:nacos:datasource-config.yaml
 
 seata:
   application-id: ${spring.application.name}

spring-cloud-alibaba-examples/integrated-example/integrated-praise-consumer/src/main/resources/application.yaml

@@ -7,11 +7,14 @@ spring:
         file-extension: yaml
         server-addr: nacos-server:8848
         group: integrated-example
-        shared-configs[0]:
-          dataid: datasource-config.yaml
-          group: integrated-example
       discovery:
         server-addr: nacos-server:8848
         group: integrated-example
+  config:
+    import:
+      - optional:nacos:integrated-consumer.yaml
+      - optional:nacos:datasource-config.yaml
+
+
 server:
   port: 8014

spring-cloud-alibaba-examples/integrated-example/integrated-praise-provider/src/main/resources/application.yaml

@@ -10,5 +10,8 @@ spring:
       discovery:
         server-addr: nacos-server:8848
         group: integrated-example
+  config:
+    import: optional:nacos:integrated-provider.yaml
+
 server:
   port: 8015

spring-cloud-alibaba-examples/integrated-example/integrated-storage/src/main/resources/application.yaml

@@ -11,11 +11,11 @@ spring:
         group: integrated-example
       config:
         server-addr: nacos-server:8848
-        file-extension: yaml
         group: integrated-example
-        shared-configs[0]:
-          dataid: datasource-config.yaml
-          group: integrated-example
+  config:
+    import:
+      - optional:nacos:integrated-storage.yaml
+      - optional:nacos:datasource-config.yaml
 
 seata:
   application-id: ${spring.application.name}
@@ -25,3 +25,4 @@ seata:
       integrated-storage-group: default
     grouplist:
       default: seata-server:8091
+