Apache Ant样式的路径 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 |
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>
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().
JavaScript Guidelines and Best Practice
- Introduction
- JavaScript
- JavaScript Guidelines
- JavaScript Best Practice
- Inline JavaScript source code
- The JavaScript language version
- Hiding JavaScript source code from the browser
- Commenting JavaScript and HTML code
- Semi-colons
- Double and Single Quotes
- Scripting HTML tags
- The NOSCRIPT tag
- Image Swapping
- JavaScript within Tables
- Frame Detection
- JavaScript Links
- Avoid using void()
- JavaScript Performance
- Select Form Fields
- Changing location
- Opening Windows
- JavaScript Entities
- JavaScript Source Files
- References and Bibliography
Introduction
REF [1] Netscape JavaScript, also called client side JavaScript (CSJS) allows a client browser to display HTML and execute JavaScript code resulting in a page that the user sees. JavaScript statements embedded in an HTML page can respond to user events such as mouse-clicks, form input, and page navigation.