ajax connect to the database

Ajax-database
.............\ajax.js
.............\build
.............\build.xml
.............\.....\empty
.............\.....\generated-sources
.............\.....\.................\ap-source-output
.............\.....\web
.............\.....\...\ajax.js
.............\.....\...\index.html
.............\.....\...\META-INF
.............\.....\...\........\context.xml
.............\.....\...\........\example5.2.html
.............\.....\...\........\MANIFEST.MF
.............\.....\...\WEB-INF
.............\.....\...\.......\classes
.............\.....\...\.......\.......\servlet
.............\.....\...\.......\.......\.......\AjaxUsernameServlet.class
.............\.....\...\.......\.......\.......\AjaxZipCodesServlet.class
.............\.....\...\.......\.......\.......\DatabaseConnector.class
.............\.....\...\.......\.......\.......\JSONUtil.class
.............\.....\...\.......\lib
.............\.....\...\.......\...\mysql-connector-java-5.1.7-bin.jar
.............\.....\...\.......\web.xml
.............\lib
.............\...\commons-beanutils-1.7.jar
.............\...\commons-collections.jar
.............\...\commons-lang.jar
.............\...\commons-logging.jar
.............\...\CopyLibs
.............\...\........\org-netbeans-modules-java-j2seproject-copylibstask.jar
.............\...\ezmorph-1.0.6.jar
.............\...\javaee-endorsed-api-6.0
.............\...\.......................\javaee6-doc-api.zip
.............\...\.......................\javax.annotation.jar
.............\...\.......................\jaxb-api-osgi.jar
.............\...\.......................\webservices-api-osgi.jar
.............\...\json-lib-2.3-jdk15.jar
.............\...\json_simple-1.1.jar
.............\...\mysql-connector-java-5.1.7-bin.jar
.............\...\nblibraries.properties
.............\nbproject
.............\.........\ant-deploy.xml
.............\.........\build-impl.xml
.............\.........\genfiles.properties
.............\.........\private
.............\.........\.......\private.properties
.............\.........\.......\private.xml
.............\.........\project.properties
.............\.........\project.xml
.............\src
.............\...\conf
.............\...\....\MANIFEST.MF
.............\...\java
.............\...\....\servlet
.............\...\....\.......\AjaxUsernameServlet.java
.............\...\....\.......\AjaxZipCodesServlet.java
.............\...\....\.......\DatabaseConnector.java
.............\...\....\.......\JSONUtil.java
.............\web
.............\...\ajax.js
.............\...\index.html
.............\...\META-INF
.............\...\........\context.xml
.............\...\........\example5.2.html
.............\...\WEB-INF
.............\...\.......\web.xml

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