SQL exception when try to connect with MS SQL server

Question

Hello Sir,
When i run the jsp file which connect to to MS Sql server database and fetch the data.
Its throwing the SQLException error like:
Name java: is not bound in this Context
here is my server.xml
[code<?xml version='1.0' encoding='utf-8'?>
<Server>
  <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"/>
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
  <GlobalNamingResources>
    <Environment name="simpleValue" type="java.lang.Integer" value="30"/>
    <Resource auth="Container" description="User database that can be updated and saved" name="UserDatabase" type="org.apache.catalina.UserDatabase"/>
    <Resource name="testDB" type="javax.sql.DataSource"/>
     <ResourceParams name="UserDatabase">
      <parameter>
        <name>factory</name>
        <value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
      </parameter>
      <parameter>
        <name>pathname</name>
        <value>conf/tomcat-users.xml</value>
      </parameter>
    </ResourceParams>
     <ResourceParams name="testDB">
      <parameter>
        <name>maxWait</name>
        <value>5000</value>
      </parameter>
      <parameter>
        <name>maxActive</name>
        <value>10</value>
      </parameter>
      <parameter>
        <name>password</name>
        <value>testpass</value>
      </parameter>
      <parameter>
        <name>url</name>
        <value>jdbc:microsoft:sqlserver://localhost:1433;DataBaseName=test;</value>
      </parameter>
      <parameter>
        <name>driverClassName</name>
        <value>com.microsoft.jdbc.sqlserver.SQLServerDriver</value>
      </parameter>
      <parameter>
        <name>maxIdle</name>
        <value>2</value>
      </parameter>
      <parameter>
        <name>username</name>
        <value>testuser</value>
      </parameter>
    </ResourceParams>
  </GlobalNamingResources>
  <Service name="Catalina">
    <Connector acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" port="8080" redirectPort="8443" maxSpareThreads="75" maxThreads="150" minSpareThreads="25">
    </Connector>
    <Connector port="8009" protocol="AJP/1.3" protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler" redirectPort="8443">
    </Connector>
    <Engine defaultHost="localhost" name="Catalina">
      <DefaultContext className="org.apache.catalina.core.StandardDefaultContext">
        <ResourceLink global="testDB" name="testDB" type="javax.sql.DataSource"/>
          </DefaultContext>
      <Host appBase="webapps" name="localhost">
        <Logger className="org.apache.catalina.logger.FileLogger" prefix="localhost_log." suffix=".txt" timestamp="true"/>
      </Host>
      <Logger className="org.apache.catalina.logger.FileLogger" prefix="catalina_log." suffix=".txt" timestamp="true"/>
      <Realm className="org.apache.catalina.realm.UserDatabaseRealm"/>
    </Engine>
  </Service>
</Server>
[/code]

Answer 1

Hello Sir,
I tried my level best, I couldn't solve the error. Still iam getting the same error Name java:comp is not bound in this Context
Again for your reference i am adding server.xml
<?xml version='1.0' encoding='utf-8'?>
<Server>
  <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"/>
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
  <GlobalNamingResources>
    <Environment name="simpleValue" type="java.lang.Integer" value="30"/>
    <Resource auth="Container" description="User database that can be updated and saved" name="UserDatabase" type="org.apache.catalina.UserDatabase"/>
    <Resource name="jdbc/datasourceDB" auth="Container" type="javax.sql.DataSource"/>
     <ResourceParams name="UserDatabase">
      <parameter>
        <name>factory</name>
        <value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
      </parameter>
      <parameter>
        <name>pathname</name>
        <value>conf/tomcat-users.xml</value>
      </parameter>
    </ResourceParams>
     <ResourceParams name="jdbc/datasourceDB">
      <parameter>
        <name>maxWait</name>
        <value>5000</value>
      </parameter>
      <parameter>
        <name>maxActive</name>
        <value>10</value>
      </parameter>
      <parameter>
        <name>password</name>
        <value>mani</value>
      </parameter>
      <parameter>
        <name>url</name>
        <value>jdbc:microsoft:sqlserver://<servername>:1433;DataBaseName=trax;selectMethod=cursor</value>
      </parameter>
      <parameter>
        <name>driverClassName</name>
        <value>com.microsoft.jdbc.sqlserver.SQLServerDriver</value>
      </parameter>
      <parameter>
          <name>driverName</name>
          <value>jdbc:jtds:sqlserver://<servername>:1433;DatabaseName=trax</value>
      </parameter>
      <parameter>
        <name>maxIdle</name>
        <value>2</value>
      </parameter>
      <parameter>
        <name>username</name>
        <value>mani</value>
      </parameter>
    </ResourceParams>
  </GlobalNamingResources>
  <Service name="Catalina">
    <Connector acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" port="8080" redirectPort="8443" maxSpareThreads="75" maxThreads="150" minSpareThreads="25">
    </Connector>
    <Connector port="8009" protocol="AJP/1.3" protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler" redirectPort="8443">
    </Connector>
    <Engine defaultHost="localhost" name="Catalina">
      <DefaultContext className="org.apache.catalina.core.StandardDefaultContext">
        <ResourceLink global="datasourceDB" name="datasourceDB" type="javax.sql.DataSource"/>
          </DefaultContext>
      <Host appBase="webapps" name="localhost">
        <Logger className="org.apache.catalina.logger.FileLogger" prefix="localhost_log." suffix=".txt" timestamp="true"/>
      </Host>
      <Logger className="org.apache.catalina.logger.FileLogger" prefix="catalina_log." suffix=".txt" timestamp="true"/>
      <Realm className="org.apache.catalina.realm.UserDatabaseRealm"/>
    </Engine>
  </Service>
</Server>part of web.xml added
     <resource-ref>
     <description> JDBC Driver:com.microsoft.jdbc.sqlserver.SQLServerDriver</description>
     <res-ref-name>jdbc/datasourceDB</res-ref-name>
     <res-type>javax.sql.DataSource</res-type>
     <res-auth>Container</res-auth>
     </resource-ref>my java code:
               Context initCtx = new InitialContext();
               Context envCtx = (Context) initCtx.lookup("java:comp/env");
               DataSource ds = (DataSource) envCtx.lookup("jdbc/datasourceDB");
               conn = ds.getConnection();Plz provide me the help.. i am suffering from this error since 1 week.
Regards
venki.