java - How to configure Tomcat to connect with MySQL -


could provide few details on how configure tomcat access mysql?

  1. in directory within tomcat place mysql-connector-java-5.1.13-bin? should place under tomcat 6.0\webapps\myapp\web-inf\lib?

  2. do need add configuration context.xml or server.xml?

  3. should create web.xml file , place under tomcat 6.0\webapps\myapp\web-inf? if so, should contents of file like?

1: place mysql-connector-java-5.1.13-bin in tomcat directory? should place under tomcat 6.0\webapps\myapp\web-inf\lib?

that depends on connections managed. create connection pooled jndi datasource improve connecting performance. in case, tomcat managing connections , need have access jdbc driver. should drop jar file in tomcat/lib.

but if you're doing basic way using drivermanager#getconnection(), in fact don't matter if drop in tomcat/lib or yourapp/web-inf/lib. need realize 1 in tomcat/lib apply all deployed webapps , 1 in yourapp/web-inf/lib override 1 in tomcat/lib particular webapp.

2: need confirgure context.xml or server.xml files?

that depends on connections managed. when using jndi datasource, suffices configure using yourapp/meta-inf/context.xml follows (just create file if not exist):

<?xml version="1.0" encoding="utf-8"?> <context>     <resource         name="jdbc/yourdb" type="javax.sql.datasource"         maxactive="100" maxidle="30" maxwait="10000"          url="jdbc:mysql://localhost:3306/yourdb"         driverclassname="com.mysql.jdbc.driver"         username="yourname" password="yourpass"     /> </context>

and yourapp/web-inf/web.xml follows:

<resource-env-ref>     <resource-env-ref-name>jdbc/yourdb</resource-env-ref-name>     <resource-env-ref-type>javax.sql.datasource</resource-env-ref-type> </resource-env-ref>

if you're doing basic drivermanager way, it's you. hardcoded, properties file, xml file, etcetera. should manage youself. tomcat won't (and can't) useful you.

noted should yourapp/meta-inf/context.xml specific tomcat , clones. each servletcontainer/appserver has own way of defining jndi resources. in glassfish example, you'd through webbased admin interface.

3: should write web.xml file , need place under tomcat 6.0\webapps\myapp\web-inf? if yes, should contents of file?

you should supply one. it's not configure resources, define servlets, filters, listeners , kind of mandatory stuff run webapp. file part of standard servlet api.

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