我是要做一个简单的查询数据库操作,在win10 64位系统用tomcat 7 myeclipse 10.7用jsp无法连接数据库,提示NO SUITBLE Driver和空指针
但是我换成win 7 32位系统用tomcat 6 myeclipse 8,5 时就可以查询了,两边的代码和操作都一样~~求大神赐教~!
select.jsp中出错代码段:<%
Student student=new Student();
//创com.ch6.dal.Studne的对象,命名为student
List list=student.getList(); //该方法返回一个LIST集合(显示这里出错)
for(StudentInfo info:list){
%>
Student.java如下:public class Student {
Conn conn=new Conn();
/*获取学生列表*/
public List getList() throws SQLException{
List list=new ArrayList();
String sql="select * from student order by number asc";
ResultSet rs=conn.executeQuery(sql);
**while(rs.next()){//这里显示空指针**
StudentInfo info=new StudentInfo();
info.setId(rs.getInt("Id"));
info.setNumber(rs.getString("Number"));
info.setName(rs.getString("Name"));
info.setAddress(rs.getString("Address"));
info.setSex(rs.getString("Sex"));
info.setPhone(rs.getString("Phone"));
info.setEmail(rs.getString("Email"));
list.add(info);
}
conn.close();
return list;
}