修改切换数据源时获取namespace的切换方式

src/main/java/cn/qg/qaplatform/config/NamespaceCache.java

+package cn.qg.qaplatform.config;
+
+import cn.qg.qaplatform.utils.HttpClientUtils;
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONArray;
+import com.alibaba.fastjson.JSONObject;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 启动时动态生成Namespace Map缓存
+ */
+@Slf4j
+@Component
+public class NamespaceCache {
+
+    public static Map<String, String> namespaceMap = new HashMap<>();
+
+    @PostConstruct
+    public void init() {
+        String url = "http://holmes-fe.liangkebang.net/k8s/namespace/list?env=all";
+        JSONObject response = HttpClientUtils.doGetReturnJson(url);
+        JSONArray nsJsonArray = (JSONArray) response.get("data");
+        List<Map> namespaceList = JSONArray.parseArray(nsJsonArray.toJSONString(), Map.class);
+        for (Map map: namespaceList) {
+            namespaceMap.put(map.get("name").toString(), map.get("mysqlHost") + ":" + map.get("mysqlPort"));
+        }
+        log.info("获取到Namespace列表：{}", JSON.toJSONString(namespaceMap));
+    }
+
+    /**
+     * 获取namespace定时任务
+     */
+    @Scheduled(cron = "0 */30 * * * ?")
+    public void getNsTask() {
+        //每半个小时执行一次缓存
+        init();
+    }
+}

src/main/java/cn/qg/qaplatform/enums/Namespace.java

 package cn.qg.qaplatform.enums;
 
+/**
+ * 废弃，改成动态获取
+ */
 public enum Namespace {
 
     DEV1("dev1", "dev1", "jdbc:mysql://172.17.5.16:32661/", "qa", "qatest"),