用户ID是空就不用调用赫拉接口了，生成海报也传空值-1

(cherry picked from commit 7ea6c3c1af5d1fca162fbf51ab55ee289da81b6c)

launch-admin/src/main/java/com/webflux/launchadmin/utils/RandomStr.java

@@ -7,8 +7,10 @@ import java.util.List;
 public  class RandomStr {
     public static String getRandomStr(){
         List<String> list = List.of("qq", "baidu", "weixin");
-        return list.get(RandomUtil.randomInt(0, list.size()));
-      //  return RandomStr.getRandomStr();
+        String s = list.get(RandomUtil.randomInt(0, list.size()));
+        String string = RandomUtil.randomString("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", 4);
+        return s+"-"+string;
+      //  return RandomStr.getRandomStr(); String string = RandomUtil.randomString("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", 7);
     }