test: add examples for config refresh

spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-b/src/main/java/com/tencent/cloud/quickstart/callee/ConfigController.java

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+/*
+ * Tencent is pleased to support the open source community by making spring-cloud-tencent available.
+ *
+ * Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed
+ * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+package com.tencent.cloud.quickstart.callee;
+
+
+import com.tencent.cloud.quickstart.callee.config.ConfigurationPropertiesSample;
+import com.tencent.cloud.quickstart.callee.config.RefreshScopeSample;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.*;
+
+
+@RestController
+public class ConfigController {
+
+	private static final Logger LOG = LoggerFactory.getLogger(ConfigController.class);
+
+	@Value("${spring.application.name:}")
+	private String applicationName;
+
+	@Value("${spring.cloud.client.ip-address:127.0.0.1}")
+	private String ip;
+
+	@Autowired
+	private ConfigurationPropertiesSample configurationPropertiesSample;
+
+	@Autowired
+	private RefreshScopeSample refreshScopeSample;
+
+	@RequestMapping(value = "/config/a", method = RequestMethod.GET)
+	public String a() {
+		String result = String.format("from application:%s, host-ip: %s, refreshScopeSample: %s",
+				applicationName, ip, refreshScopeSample.getName());
+		LOG.info(result);
+		return result;
+	}
+
+	@RequestMapping(value = "/config/b", method = RequestMethod.GET)
+	public String b() {
+		String result = String.format("from application:%s, host-ip: %s, configurationPropertiesSample: %s",
+				applicationName, ip, configurationPropertiesSample.getName());
+		LOG.info(result);
+		return result;
+	}
+
+}

spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-b/src/main/java/com/tencent/cloud/quickstart/callee/config/ConfigurationPropertiesSample.java

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+/*
+ * Tencent is pleased to support the open source community by making spring-cloud-tencent available.
+ *
+ * Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed
+ * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ */
+
+package com.tencent.cloud.quickstart.callee.config;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+
+@Component
+//@RefreshScope //如果使用反射模式，则不需要加这个注解
+@ConfigurationProperties(prefix = "properties")
+public class ConfigurationPropertiesSample {
+	private String name = "properties-default-name";
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+}

spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-b/src/main/java/com/tencent/cloud/quickstart/callee/config/EnvironmentChangeEventListener.java

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+package com.tencent.cloud.quickstart.callee.config;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.cloud.context.environment.EnvironmentChangeEvent;
+import org.springframework.context.event.EventListener;
+import org.springframework.core.env.Environment;
+import org.springframework.stereotype.Component;
+
+@Component
+public class EnvironmentChangeEventListener {
+	private static final Logger LOG = LoggerFactory.getLogger(EnvironmentChangeEventListener.class);
+
+	private final Environment environment;
+
+	public EnvironmentChangeEventListener(Environment environment) {
+		this.environment = environment;
+	}
+
+	@EventListener
+	public void handleConfigChange(EnvironmentChangeEvent event) {
+		if (event == null) {
+			LOG.warn("Received null environment change event");
+			return;
+		}
+
+		if (event.getKeys().isEmpty()) {
+			LOG.warn("Received empty keys in environment change event. Event details: {}", event);
+			LOG.info("Current environment properties, Active: {}, Default:{}", environment.getActiveProfiles(),
+					environment.getDefaultProfiles());
+			return;
+		}
+
+		StringBuilder changes = new StringBuilder();
+		changes.append("Environment configuration changes:\n");
+
+		event.getKeys().forEach(key -> {
+			String value = environment.getProperty(key);
+			changes.append(String.format("  %s = %s%n", key, value));
+		});
+
+		LOG.info(changes.toString());
+	}
+}
+

spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-b/src/main/java/com/tencent/cloud/quickstart/callee/config/RefreshScopeSample.java

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+package com.tencent.cloud.quickstart.callee.config;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cloud.context.config.annotation.RefreshScope;
+import org.springframework.context.annotation.Configuration;
+
+@RefreshScope
+@Configuration
+public class RefreshScopeSample {
+	@Value("${refresh.name:refresh-default-name}")
+	private String name;
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+}