Sample Code - Java/JSP

This is a collection of free source code to demonstrate various concepts which you may find useful when developing your applications. If you have code you would like to donate to this repository for the benefit of other developers, please follow the standards already in use in the files below (at minimum), and send your files to us as plain source code with a description. Please feel free to include your own details in the source, or a link to your site. Replace all tabs with 4 spaces.

Resources -> Sample Code

Basics sample.jsp A very simple JSP example which runs some Java code in a JSP page. Web Apps AutoRun.java A servlet designed to be loaded on startup by the servlet container, using <load-on-startup> in web.xml File I/O FileServlet.java A servlet which creates a file in the root servlet folder, writes to it and reads from it. TCP/IP TestProxy.java Complete example of how to retrieve contents of a website through a proxy using URLConnection (with Authentication) TestProxy2.java Alternate to TestProxy.java, using a separate Authenticator class, which is more dynamic. Additional files required: ProxyAuth.java Encoding/Decoding Base64.java Command line java tool to encode or decode Base64 strings. Customising Tomcat Error Pages CustomErrorPage.jsp An example of how to override the default error page provided by Tomcat for HTTP errors (such as 404 Page Not Found) or for Java Exceptions. This allows your application to handle all top-level errors from the one page, and perform operations such as emailing exceptions to your support team automatically. JNDI DBCP (Database Connection Pool) [App]/META-INF/context.xml JNDI DataSource Connection Pool setup example for MySQL 5 with the Connector/J JDBC driver Note that no path= attribute is required in the context tag. [App]/META-INF/context.xml JNDI DataSource Connection Pool setup example for MySQL 4 with the Connector/J JDBC driver Note that no path= attribute is required in the context tag. [App]/META-INF/context.xml JNDI DataSource Connection Pool setup example for SQL/Server with the jTDS JDBC driver Note that no path= attribute is required in the context tag. [App]/WEB-INF/web.xml web.xml file for example (minimal, note that no resource-refs are required) [App]/test.jsp This example shows how to run a query that uses the connection pool. It uses JSTL tags to run an SQL query using the JNDI data source. [App]/plain.jsp Alternate example using JDBC calls directly (no JSTL).

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