[Bug] Dynamic create multi graph error with restful api in 1.2.0

[fantengfeiNana]

Problem Type (问题类型)

other exception / error (其他异常报错)

Before submit

• 我已经确认现有的 Issues 与 FAQ 中没有相同 / 重复问题 (I have confirmed and searched that there are no similar problems in the historical issue and documents)

Environment (环境信息)

• Server Version: 1.2.0 (Apache Release Version)
• Backend: mysql

Your Question (问题描述)

我们使用了下载二进制压缩包的方式完成了 apache-hugegraph-incubating-1.2.0的下载和部署，
已经完成了初始化和hugegraph-server的启动，获取初始化的接口调用正常。
但是在通过restful接口创建图谱时报错，通过查看hugegraph-server.log日志发现是数据库连接异常
如下图：

能够确定是的已经在hugegraph.properties配置文件按照文档完成了存储配置

Vertex/Edge example (问题点 / 边数据举例)

No response

Schema [VertexLabel, EdgeLabel, IndexLabel] (元数据结构)

No response

[dosubot]

🤖

你好 @fantengfeiNana，

我是Dosu，一个机器人，我可以帮助你解决bug，回答问题，甚至成为一个贡献者。请知道，在等待人类维护者的同时，我在这里帮助你。我正在查看你的问题，会尽快给你一个完整的答案。

谢谢你的耐心等待！

[fantengfeiNana]

我本地通过idea调试源码是通过手动修改MysqlOptions.java文件的中数据库配置解决的这个问题。通过二进制文件部署，请问我该如何解决这个问题？

[imbajin]

我本地通过idea调试源码是通过手动修改MysqlOptions.java文件的中数据库配置解决的这个问题。通过二进制文件部署，请问我该如何解决这个问题？

Known Issue in 1.2.0, we will fix it soon (follow our next PR changes maybe)

Currently, you can temporarily use your current way(hard code), or temporarily roll back 1.0.0 and wait for the community to fix and update. We will also release a new fix release for 1.2.1

[JackyYangPassion]

According to the official documentation, the BUG has not been reproduced.

First Manually download mysql-diver and place it in the lib directory.
mysql-connector-java-8.0.30.jar

Second Dynamically create a graph using the API:

POST http://127.0.0.1:8081/graphs/test_mysql

Body:

   gremlin.graph=org.apache.hugegraph.HugeFactory
   backend=mysql
   serializer=mysql
   store=test_mysql
   jdbc.driver=com.mysql.jdbc.Driver
   jdbc.url=jdbc:mysql://127.0.0.1:3306
   jdbc.username=root
   jdbc.password=123456
   jdbc.reconnect_max_times=3
   jdbc.reconnect_interval=3
   jdbc.sslmode=false

Please provide the detailed error log and the configuration content for creating the graph in the body to assist with troubleshooting. @fantengfeiNana