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Apache Ant样式的路径 ant path url pattern

ant path url pattern

Apache Ant样式的路径有三种通配符匹配方法(在下面的表格中列出)
这些可以组合出很多种灵活的路径模式
Table Ant Wildcard Characters


Table Example Ant-Style Path Patterns

Path Description  
/app/*.x 匹配(Matches)所有在app路径下的.x文件  
/app/p?ttern 匹配(Matches) /app/pattern 和 /app/pXttern,但是不包括/app/pttern  
/**/example 匹配(Matches) /app/example, /app/foo/example, 和 /example  
/app/**/dir/file. 匹配(Matches) /app/dir/file.jsp, /app/foo/dir/file.html,/app/foo/bar/dir/file.pdf, 和 /app/dir/file.java  
/**/*.jsp 匹配(Matches)任何的.jsp 文件  

Wildcard Description  
? 匹配任何单字符  
* 匹配0或者任意数量的字符  
** 匹配0或者更多的目录  

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com.mchange.v2.resourcepool.ResourcePoolException: Attempted to use a closed or broken resource pool

解决这个异常需要修改设置成如下:

<property name="acquireRetryAttempts">
    <value>30</value>
</property>
<property name="acquireRetryDelay">
    <value>100</value>
</property>
<property name="breakAfterAcquireFailure">
    <value>false</value>
</property>

- acquireRetryAttempts 
Default: 30 
Defines how many times c3p0 will try to acquire a new Connection from the database before giving up. If this value is less than or equal to zero, c3p0 will keep trying to fetch a Connection indefinitely 

- acquireRetryDelay 
Default: 1000 
Milliseconds, time c3p0 will wait between acquire attempts. 

- breakAfterAcquireFailure 
Default: false 
If true, a pooled DataSource will declare itself broken and be permanently closeed if a Connection cannot be obtained from the database after making acquireRetryAttempts to acquire one. If false, failure to obtain a Connection will cause all Threads waiting for the pool to acquire a Connection to throw an Exception, but the DataSource will remain valid, and will attempt to acquire again following a call to getConnection().

 


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