Background
Developing a simple web application (Eclipse + JBoss + Apache Tomcat) to generate XML files.
Problem
The “Business Area” list queries against the database, and the “Column Cluster” list queries the database using the selected “Business Area” items. Both of these are unique queries that are stored external text files.
The files are currently stored in the following locations:
- WebContent/META-INF/business-areas.sql
- WebContent/META-INF/column-clusters.sql
These are then used to seed PreparedStatements.
Source Code
The method to read the SQL code might resemble:
private String getSQL() {
String result = "";
try {
BufferedReader br = open( "business-areas.sql" );
String line = null;
while( (line = br.readLine()) != null ) {
result += line;
}
br.close();
}
catch( Exception e ) {
e.printStackTrace();
}
return result;
}
Questions
I would like to know:
- What are the best practices for storing such assets for deployment as part of a web app? (That is, is
META-INFa good location, or isMETA-INF/resourcespreferred?) - What APIs would you recommend for reading the file content? (That is, how do I write the
openmethod so that it finds the files to open?)
I already have JNDI in place to establish the database connection, but would rather not use JNDI to obtain handles to the files, if possible.
Related Sites
- http://blogs.oracle.com/alexismp/entry/web_inf_lib_jar_meta
- http://www.avajava.com/tutorials/lessons/where-do-i-put-resources-in-my-maven-project.html
- http://docs.jboss.org/jbossweb/3.0.x/config/context.html
- http://tomcat.apache.org/tomcat-4.0-doc/catalina/docs/api/org/apache/naming/resources/FileDirContext.html
Thank you!
The right location (and also the common practice) is to place them under your
sourcedirectory, which will then gets compiled intoWEB-INF/classesdirectory. I’m not sure what you meant by “classes directory is volatile” in your response to @Dave, but this is how most (if not all) Java web apps store things.WEB-INF/classesis not just for Java classes. It’s common to see logging properties file (like log4j), Hibernate and Spring XML files stored undersourcedirectory and you can safely access the files using something like this:-Some useful information about the use of META-INF: What's the purpose of META-INF?