add more ConfigurationProperties sample

apollo-demo/src/main/java/com/ctrip/framework/apollo/demo/spring/springBootDemo/config/SampleRedisConfig.java

 package com.ctrip.framework.apollo.demo.spring.springBootDemo.config;
 
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import java.util.List;
+import java.util.Map;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.boot.context.properties.ConfigurationProperties;
@@ -9,22 +13,38 @@ import org.springframework.stereotype.Component;
 import javax.annotation.PostConstruct;
 
 /**
+ * You may set up data like the following in Apollo:
+ * <pre>
+ * redis.cache.expireSeconds = 100
+ * redis.cache.clusterNodes = 1,2
+ * redis.cache.commandTimeout = 50
+ * redis.cache.someMap.key1 = a
+ * redis.cache.someMap.key2 = b
+ * redis.cache.someList[0] = c
+ * redis.cache.someList[1] = d
+ * </pre>
+ *
  * @author Jason Song(song_s@ctrip.com)
  */
 @ConfigurationProperties(prefix = "redis.cache")
 @Component("sampleRedisConfig")
 @RefreshScope
 public class SampleRedisConfig {
+
   private static final Logger logger = LoggerFactory.getLogger(SampleRedisConfig.class);
 
   private int expireSeconds;
   private String clusterNodes;
   private int commandTimeout;
 
+  private Map<String, String> someMap = Maps.newLinkedHashMap();
+  private List<String> someList = Lists.newLinkedList();
+
   @PostConstruct
   private void initialize() {
-    logger.info("SampleRedisConfig initialized - expireSeconds: {}, clusterNodes: {}, commandTimeout: {}",
-        expireSeconds, clusterNodes, commandTimeout);
+    logger.info(
+        "SampleRedisConfig initialized - expireSeconds: {}, clusterNodes: {}, commandTimeout: {}, someMap: {}, someList: {}",
+        expireSeconds, clusterNodes, commandTimeout, someMap, someList);
   }
 
   public void setExpireSeconds(int expireSeconds) {
@@ -39,9 +59,18 @@ public class SampleRedisConfig {
     this.commandTimeout = commandTimeout;
   }
 
+  public Map<String, String> getSomeMap() {
+    return someMap;
+  }
+
+  public List<String> getSomeList() {
+    return someList;
+  }
+
   @Override
   public String toString() {
-    return String.format("[SampleRedisConfig] expireSeconds: %d, clusterNodes: %s, commandTimeout: %d",
-        expireSeconds, clusterNodes, commandTimeout);
+    return String.format(
+        "[SampleRedisConfig] expireSeconds: %d, clusterNodes: %s, commandTimeout: %d, someMap: %s, someList: %s",
+            expireSeconds, clusterNodes, commandTimeout, someMap, someList);
   }
 }