[GitHub] [shardingsphere] qiaoheng110 opened a new issue #15769: HashModShardingAlgorithm getShardingCount() throw a NumberFormatException

[GitBox]

qiaoheng110 opened a new issue #15769:
URL: https://github.com/apache/shardingsphere/issues/15769


   ## Bug Report
   
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   If no response anymore and we cannot reproduce it on current information, we 
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   Please answer these questions before submitting your issue. Thanks!
   
   ### Which version of ShardingSphere did you use?
   5.1.0
   ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
   ShardingSphere-JDBC
   ### Expected behavior
   HashModShardingAlgorithm can correct parsing of the sharding-count property
   ### Actual behavior
   throw a java.lang.NumberFormatException: null
   ### Reason analyze (If you can)
   JDK1.8 Properties.getProperty(String key) only return value of type string, 
otherwise return null 
   
   HashModShardingAlgorithm
   <img width="850" alt="image" 
src="https://user-images.githubusercontent.com/20252910/156500592-c30af024-d2a5-4504-a2af-2deda872f72a.png";>
   Properties
   <img width="650" alt="image" 
src="https://user-images.githubusercontent.com/20252910/156500627-969ecec5-e644-4aa3-bc61-e2ebc9091597.png";>
   
   ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule 
configuration, when exception occur etc.
   <img width="293" alt="image" 
src="https://user-images.githubusercontent.com/20252910/156500689-b2c954a2-b336-48e7-8b1c-351d353640cd.png";>
   
   <img width="1223" alt="image" 
src="https://user-images.githubusercontent.com/20252910/156500723-8904649d-913c-43e5-b770-0ff551f83082.png";>
   
   ### Example codes for reproduce this issue (such as a github link).
   if i config like this, it can work correctly
   
   <img width="283" alt="image" 
src="https://user-images.githubusercontent.com/20252910/156500840-57f9217e-f7c7-4ddb-9107-758467c53f1f.png";>
   


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