tomcat連線池問題

lluuoo發表於2004-06-05
Tomcat
原始碼：
try {
Context ctx = new InitialContext();
if (ctx == null) {
throw new Exception("Context Look Up Error");
}
DataSource dsource = (DataSource)ctx.lookup("java:comp/env/jdbc/cartDB");
if (dsource != null) {
System.out.println("---------------------------------------------------");
con = dsource.getConnection();
}
}
。。。

錯誤如下：

2004-6-4 23:32:41 org.apache.coyote.http11.Http11Protocol start

資訊: Starting Coyote HTTP/1.1 on port 8083

------------------------------------------------------------

資料連線池連線錯誤：Cannot load JDBC driver class 'null'

java.sql.SQLException: Cannot load JDBC driver class 'null'

at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:529)

at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:312)

at flowershop.DBConnection.initDataSource_Connection(DBConnection.java:89)

at flowershop.DBConnection.<init>(DBConnection.java:29)

DataSource物件已經生成，就是不能獲得連線，請問這是什麼原因造成的？

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