sam wun wrote: > Do I need to put mysql driver in the common/lib/ directory in linux?
Yes, that's a basic requirement. > If I need to have that, where can I download it? The MySQL site - you could probably have guessed that. http://dev.mysql.com/usingmysql/java/ > Thanks > > > >> ----- Original Message ----- >> From: sam wun >> Sent: 28/08/08 04:44 pm >> To: Tomcat Users List >> Subject: Re: Re: Can't execute servlet project >> >> HI there, >> >> >> >> According to the tomcat online document, do I have to modify the >> context.xml file? >> >> $CATALINA_HOME/conf/context.xml >> >> >> >> with the following new setup: <Resource name="jdbc/TestDB" >> auth="Container" >> type="javax.sql.DataSource" >> maxActive="100" maxIdle="30" maxWait="10000" >> username="javauser" password="javadude" >> driverClassName="com.mysql.jdbc.Driver" >> >> url="jdbc:mysql://localhost:3306/javatest?autoReconnect=true"/> >> >> >> >> where username/password is the root/admin user/password of the mysql >> database? >> >> >> >> thanks >> >> >> >> >> >>> ----- Original Message ----- >>> From: David Smith >>> Sent: 28/08/08 03:06 am >>> To: Tomcat Users List >>> Subject: Re: Can't execute servlet project >>> >>> The datasource for your webapp isn't setup correctly. Take a look at >>> >>> >> http://tomcat.apache.org/tomcat-5.5-doc/jndi-datasource-examples-howto.html >>> for help on how to properly setup a database connection pool. My only >>> edit that article I would recommend is don't add ?autoReconnect=true to >>> the end of the mysql database url. Instead, add >> validationQuery="select >>> 1" to the <Resource ... /> element in your context.xml file so >>> connections are tested and regenerated as needed. >>> >>> --David >>> >>> sam wun wrote: >>>> HI there, >>>> >>>> >>>> >>>> I managed to fix the jdk version error, now it comes with a different >>>> error. >>>> >>>> The url I am trying to put on the firefox browser is >>>> >>>> http://10.1.9.1:8080/DBTest/CreateCustomerServlet >>>> >>>> >>>> >>>> >>>> >>>> The error is: >>>> >>>> TTP Status 500 - >>>> >>>> type Exception report >>>> >>>> message >>>> >>>> description The server encountered an internal error () that >> prevented >>> it >>>> from fulfilling this request. >>>> >>>> exception javax.servlet.ServletException: Cannot create JDBC driver >> of >>>> class '' for connect URL 'null' >>>> servlet.CreateCustomerServlet.doGet(CreateCustomerServlet.java:38) >>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:690) >>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:803) >>>> >>>> root cause org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot >>> create >>>> JDBC driver of class '' for connect URL 'null' >>>> >>>> >> org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1150) >>>> >>>> >> org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880) >>>> command.CommandExecutor.getConnection(CommandExecutor.java:54) >>>> >>> command.CommandExecutor.executeDatabaseCommand(CommandExecutor.java:38) >>>> servlet.CreateCustomerServlet.doGet(CreateCustomerServlet.java:33) >>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:690) >>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:803) >>>> >>>> root cause java.sql.SQLException: No suitable driver >>>> java.sql.DriverManager.getDriver(Unknown Source) >>>> >>>> >> org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1143) >>>> >>>> >> org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880) >>>> command.CommandExecutor.getConnection(CommandExecutor.java:54) >>>> >>> command.CommandExecutor.executeDatabaseCommand(CommandExecutor.java:38) >>>> servlet.CreateCustomerServlet.doGet(CreateCustomerServlet.java:33) >>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:690) >>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:803) >>>> >>>> note The full stack trace of the root cause is available in the >> Apache >>>> Tomcat/5.5.26 logs. >>>> >>>>> ----- Original Message ----- >>>>> From: David Smith >>>>> Sent: 28/08/08 12:44 am >>>>> To: Tomcat Users List >>>>> Subject: Re: Can't execute servlet project >>>>> >>>>> Looks normal .. you won't get a file named CreateCustomerServlet >> under >>>>> DbTest. You should get a class named CreateCustomerServlet.class in >>>>> WEB-INF/classes/servlet. That class will be called when your webapp >>>>> receive's a request for >>>>> http://localhost:8080/DbTest/CreateCustomerServlet (assuming tomcat >>> was >>>>> installed with listening on port 8080 and it's installed on your >> local >>>>> workstation). That's what the <servlet-mapping> ... >>> </servlet-mapping> >>>>> part of web.xml is all about -- mapping URLs to servlets. >>>>> >>>>> >>>>> --David >>>>> >>>>> sam wun wrote: >>>>> >>>>>> I got a similar web.xml, but the is different. >>>>>> >>>>>> Here is the entire content of my web.xml. >>>>>> >>>>>> >>>>>> >>>>>> <?xml version="1.0" encoding="UTF-8"?> >>>>>> <web-app id="WebApp_ID" version="2.4" >>>>>> xmlns="http://java.sun.com/xml/ns/j2ee"; >>>>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >>>>>> xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee >>>>>> http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd";> >>>>>> <display-name> >>>>>> DBTest</display-name> >>>>>> <servlet> >>>>>> <description> >>>>>> Servlet to create customers</description> >>>>>> <display-name> >>>>>> CreateCustomerServlet</display-name> >>>>>> <servlet-name>CreateCustomerServlet</servlet-name> >>>>>> <servlet-class> >>>>>> servlet.CreateCustomerServlet</servlet-class> >>>>>> </servlet> >>>>>> <servlet-mapping> >>>>>> <servlet-name>CreateCustomerServlet</servlet-name> >>>>>> <url-pattern>/CreateCustomerServlet</url-pattern> >>>>>> </servlet-mapping> >>>>>> <welcome-file-list> >>>>>> <welcome-file>index.html</welcome-file> >>>>>> <welcome-file>index.htm</welcome-file> >>>>>> <welcome-file>index.jsp</welcome-file> >>>>>> <welcome-file>default.html</welcome-file> >>>>>> <welcome-file>default.htm</welcome-file> >>>>>> <welcome-file>default.jsp</welcome-file> >>>>>> </welcome-file-list> >>>>>> <resource-ref> >>>>>> <description>DB Connection</description> >>>>>> <res-ref-name>jdbc/TestDB</res-ref-name> >>>>>> <res-type>javax.sql.DataSource</res-type> >>>>>> <res-auth>Container</res-auth> >>>>>> </resource-ref> >>>>>> </web-app> >>>>>> >>>>>> >>>>>> >>>>>> However, I don't see "CreateCustomerServlet" copied into my DBTest >>>>>> >>>>> folder >>>>> >>>>>> in the linux(tomcat) server. >>>>>> >>>>>> Here is the project directory listing of my tomcat server (in >> linux): >>>>>> linux:~/tomcat/apache-tomcat-5.5.26/webapps/DBTest # ls >>>>>> . .. META-INF WEB-INF customers.jsp >>>>>> >>>>>> >>>>>> >>>>>> Thanks >>>>>> >>>>>> Sam >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> ----- Original Message ----- >>>>>>> From: David Smith >>>>>>> Sent: 27/08/08 11:29 pm >>>>>>> To: Tomcat Users List >>>>>>> Subject: Re: Can't execute servlet project >>>>>>> >>>>>>> But if you followed the tutorial, there should be a servlet >> mapping >>> in >>>>>>> your web.xml looking like what I copied and pasted from the >> article >>>>>>> below: >>>>>>> >>>>>>> <servlet> >>>>>>> <description>Create Customers Servlet</description> >>>>>>> <display-name>ListCustomers</display-name> >>>>>>> <servlet-name>ListCustomers</servlet-name> >>>>>>> <servlet-class>servlet.ListCustomersServlet</servlet-class> >>>>>>> </servlet> >>>>>>> <servlet-mapping> >>>>>>> <servlet-name>ListCustomers</servlet-name> >>>>>>> <url-pattern>/ListCustomers</url-pat-tern> >>>>>>> </servlet-mapping> >>>>>>> >>>>>>> This defines a servlet in the <servlet> element and then defines >> the >>>>>>> URLs this servlet should service in the <servlet-mapping> element. >> >>> In >>>>>>> this case there doesn't need to be a physical file named >>> ListCustomers >>>>>>> in the top level of the DbTest webapp. >>>>>>> >>>>>>> Your tutorial was very much geared to showing you how Eclipse >> works, >>>>>>> more or less assuming you had some familiarity with servlet and/or >>>>>>> >>>>> java >>>>> >>>>>>> programming. I would recommend finding some tutorial material >> that >>>>>>> focuses on servlet/jsp programming, ignoring IDEs like Eclipse. >>>>>>> >>>>>>> --David >>>>>>> >>>>>>> sam wun wrote: >>>>>>> >>>>>>> >>>>>>>> HI there, >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> It sounds logical, but there is no LIstCustomers in the DBTest >>>>>>>> >>>>> folder. >>>>> >>>>>>>> Thanks >>>>>>>> >>>>>>>> Sam >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>> ----- Original Message ----- >>>>>>>>> From: David Smith >>>>>>>>> Sent: 27/08/08 09:59 pm >>>>>>>>> To: Tomcat Users List >>>>>>>>> Subject: Re: Can't execute servlet project >>>>>>>>> >>>>>>>>> I see .... the jsp is a view and as such wasn't designed to be >> run >>>>>>>>> >>>>> on >>>>> >>>>>>>>> it's own. Try http://localhost/DBTest/ListCustomers in your >>>>>>>>> >>>>> browser. >>>>> >>>>>>>>> That should hit the servlet which in turn should generate the >>>>>>>>> >>>>> required >>>>> >>>>>>>>> bean and forward the user to your jsp. >>>>>>>>> >>>>>>>>> --David >>>>>>>>> >>>>>>>>> >>>>>>>>> sam wun wrote: >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>> Hi, thanks for trying to help. >>>>>>>>>> >>>>>>>>>> I dont' have a clue on this *bean*. >>>>>>>>>> >>>>>>>>>> The entire tutorial doesn't mention about how to setup a >> bean... >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> The tutorial I;ve followed is shown as below: >>>>>>>>>> >>>>>>>>>> http://java.sys-con.com/node/152270 >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Thanks >>>>>>>>>> >>>>>>>>>> Sam >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >> --------------------------------------------------------------------- >>>>> To start a new topic, e-mail: users@tomcat.apache.org >>>>> To unsubscribe, e-mail: [EMAIL PROTECTED] >>>>> For additional commands, e-mail: [EMAIL PROTECTED] >>>>> >>>>> >>>> >>> >>> -- >>> David Smith >>> Programmer/Analyst >>> College of Agriculture and Life Sciences >>> Cornell University >>> B32 Morrison Hall >>> Ithaca, NY 14853 >>> Phone: (607) 255-4521 >>> >>> >>> --------------------------------------------------------------------- >>> To start a new topic, e-mail: users@tomcat.apache.org >>> To unsubscribe, e-mail: [EMAIL PROTECTED] >>> For additional commands, e-mail: [EMAIL PROTECTED] >>> > --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
