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| JSF Tags: Tomahawk Tags |
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 Rendered Output:
2.Tomahawk inputFileUpload tag :
File uploading is the concept of uploading
the file to the server. In Tomahawk, the
component for this purpose can be created
using <t:inputFileUpload> tag. Do
remember to include “enctype” attribute
in the form tag and set to “multipart/
form-data”. You must enable the MultiPart
Filter to make the component work. For
this, you have to add the code below in the
web.xml file.
<filter>
<filter-name>extensionsFilter
</filter-name>
<filter-class>
org.apache.myfaces.webapp.
filter.ExtensionsFilter
</filter-class>
<init-param>
<description>Set the size limit for
uploaded files.
Format: 10 - 10 bytes
10k - 10 KB |
|
10m - 10 MB
1g - 1 GB
</description>
<param-name>uploadMaxFileSize
</param-name>
<param-value>100m</param-value>
</init-param>
<init-param>
<description>Set the threshold size - files
below this limit are stored in memory, files
above this limit are stored on disk.
Format: 10 - 10 bytes
10k - 10 KB
10m - 10 MB
1g - 1 GB
</description>
<param-name>uploadThresholdSize
</param-name>
<param-value>100k</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>extensionsFilter
</filter-name>
<url-pattern>*.jsf</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>extensionsFilter
</filter-name>
<url-pattern>/faces/*</url-pattern>
</filter-mapping>
Code Description:
In the code below, inputFileUpload tag
creates the file upload component. We
have also created a button that when
clicked, causes a method upload() of the
backing bean(FileUploadForm.java) to
be called. In this code, the output text for
showing success and failure is rendered
based on the condition of success / failure
in uploading the file. For this, rendered
attribute has been used. |
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Sept 2007 | Java Jazz Up |14 |
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