[Bug] JDBC EC connection cache key logic suggested optimization

[kongslove]

Search before asking

• I searched the issues and found no similar issues.

Linkis Component

linkis-engineconnn-plugin

Steps to reproduce

创建相同类型的jdbc链接，使用不同用户提交任务时会默认用第一个账号创建的链接

Expected behavior

缓存的datasource的key粒度降低 ,使用url+username作为key

Your environment

• Linkis version used: 1.1.1
• Environment name and version:
  • cdh-6.3.2
  • hive-2.1.1
  • spark-2.4.8
  • scala-2.11.8
  • jdk 1.8.0_121
  • ....

Anything else

No response

Are you willing to submit a PR?

• Yes I am willing to submit a PR!

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[peacewong]

I agree with your point of view very much. Are you willing to submit PR for optimization?