连接代码,已将classes12.jar通过myeclipes导入进来
public class connDB {
public Connection conn = null;
public Statement stmt = null;
public ResultSet rs = null;
private static String dbClassName ="oracle.jdbc.driver.OracleDriver";
private static String connectionUrl ="jdbc:oracle:thin:@localhost:1521:orcl";
private static String user="system";
private static String password="sun917208";
public Connection getConnection() {
try{
Class.forName(dbClassName);
conn = DriverManager.getConnection(connectionUrl,user,password);
} catch(Exception e)
{}
return conn;
}
出现错误:
org.apache.jasper.JasperException: java.lang.NullPointerException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:532)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:426)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)请大家帮忙看看!写了
public class connDB {
public Connection conn = null;
public Statement stmt = null;
public ResultSet rs = null;
private static String dbClassName ="oracle.jdbc.driver.OracleDriver";
private static String connectionUrl ="jdbc:oracle:thin:@localhost:1521:orcl";
private static String user="system";
private static String password="sun917208";
public Connection getConnection() {
try{
Class.forName(dbClassName);
conn = DriverManager.getConnection(connectionUrl,user,password);
} catch(Exception e)
{}
return conn;
}
出现错误:
org.apache.jasper.JasperException: java.lang.NullPointerException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:532)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:426)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)请大家帮忙看看!写了
http://hi.baidu.com/yangxinglouis/blog/item/307f68fd7b7a061309244da2.html