tomcat - 在 context.xml 中配置 jdbcRealm

Question

<Context antiJARLocking="true" path="/NCellLive">
<Resource 
    name="jdbc/Gis_WebApp" 
    auth="Container"
    type="javax.sql.DataSource" 
    username="uname" 
    password="pword"
    driverClassName="com.microsoft.sqlserver.jdbc.SQLServerDriver" 
    url="jdbc:sqlserver://127.0.0.1:1433;DatabaseName=Gis_WebApp;SelectMethod=cursor;"
    maxActive="8" 
/>
    <Realm className="org.apache.catalina.realm.JDBCRealm" debug="99"
    driverName="com.microsoft.sqlserver.jdbc.SQLServerDriver"
    connectionURL="jdbc:sqlserver://127.0.0.1:1433;DatabaseName=Gis_WebApp;"
    connectionName="uname" connectionPassword="pword"
    userTable="app_user" userNameCol="username" userCredCol="password"
    userRoleTable="app_user_group" roleNameCol="groupname"/>  

</Context>

现在所有数据库连接都工作正常，但在我添加领域后抛出以下错误我已经在库中添加了 sqljdbc4.jar。

Jan 31, 2012 11:28:24 AM org.apache.catalina.realm.JDBCRealm authenticate
SEVERE: Exception performing authentication
java.sql.SQLException: com.microsoft.sqlserver.jdbc.SQLServerDriver
    at org.apache.catalina.realm.JDBCRealm.open(JDBCRealm.java:701)
    at org.apache.catalina.realm.JDBCRealm.authenticate(JDBCRealm.java:352)
    at org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:295)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:450)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1805)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver

可能是什么问题？

Answer 1

Caused by: java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver

告诉您在您的类路径中找不到 sql 库。
它需要在您的 tomcat/lib 文件夹中。

来自doc :

To set up Tomcat to use JDBCRealm, you will need to follow these steps:

1. If you have not yet done so, create tables and columns in your database that conform to the requirements described above.
2. Configure a database username and password for use by Tomcat, that has at least read only access to the tables described above. (Tomcat will never attempt to write to these tables.)
3. Place a copy of the JDBC driver you will be using inside the $CATALINA_HOME/lib directory. Note that only JAR files are recognized!
4. Set up a element, as described below, in your $CATALINA_BASE/conf/server.xml file.
5. Restart Tomcat 6 if it is already running.