帮忙呀，struts我快疯了！

<data-sources>
    <data-source type="org.apache.commons.dbcp.BasicDataSource" key="dataSource">
      <set-property value="com.microsoft.jdbc.sqlserver.SQLServerDriver" property="driverClassName" />
      <set-property value="jdbc:microsoft:sqlserver://172.25.15.143;DatabaseName=TEST" property="url" />
      <set-property value="10" property="maxCount" />
      <set-property value="3" property="minCount" />
      <set-property value="sa" property="username" />
      <set-property value="as" property="password" />
    </data-source>
public class ConnectionPool extends Action{
  public ConnectionPool() {
  }
  protected Connection connectionPool(HttpServletRequest request) {
   Connection conn = null;
   try {
     DataSource ds = this.getDataSource(request,"dataSource");
     conn = ds.getConnection();
     return conn;
   }
   catch (SQLException ex) {
     System.out.println("Database connection is failure : " + ex.getMessage());
     return null;
   }
 }