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MySQL, JavaBeans and File Upload
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Download war file dbjavabean.war from the http://douap.uap.asia
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Required Libraries in WEB-INF/lib folder
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Digesting the JSP files.
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File index.jsp
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Eclipse path for the upload
Note that the upload code is included Change \ to / Replace the Eclipse path with the actual deployment path in Tomcat
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Using the MyDB.java class
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File MyDB.java Get only one record Store the values in a HashMap
Values are of type String
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public HashMap<?,?> getMap()
Reading HashMap in index.jsp Set record id in MyDB bean From public HashMap<?,?> getMap()
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Code of HashMap and ArrayList
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Flow
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Get more than one record
HashMap in an ArrayList Refresh content
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Reading ArrayList in index.jsp
The Hashmap ArrayList
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File upload.jsp Includes image resize, database, and upload.
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Value of path is from index. jsp. Set it right before uploading
Value of path is from index.jsp. Set it right before uploading. Check for file permissions.
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Understanding what is passed by the form
name and value pairs of the form
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Retrieve the file and store it in the hard drive based on the path
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For thumbnails, resizing the file based on the size
Store in the database
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Update database
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File slideshow.jsp Variable start dictates what the next image to show
Get all images,
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Get one image
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Test Upload using Eclipse Tomcat
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Refresh Project Explorer to show the uploaded file.
Refresh page to reflect the uploaded image
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Study the code. Recode the your menu using JavaBean.
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