4 
<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，但是在我添加领域后抛出错误后，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？

4

1 回答 1

3 
Caused by: java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver

告诉你在你的类路径中找不到 sql 库。
它需要在您的 tomcat/lib 文件夹中。

从文档：

要设置 Tomcat 以使用 JDBCRealm，您需要执行以下步骤：

  1. 如果您尚未这样做，请在数据库中创建符合上述要求的表和列。
  2. 配置供 Tomcat 使用的数据库用户名和密码，至少对上述表具有只读访问权限。（Tomcat 永远不会尝试写入这些表。）
  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.
于 2012-01-31T07:45:14.920 回答