我正在学习JDBC,唯一我得不到的是下面代码中的类Class.
无论我是否删除Class.forName("com.mysql.jdbc.Driver"),它都能正常工作.
你能解释一下这部分中的Class.forName("com.mysql.jdbc.Driver")函数是什么吗?
import java.sql.*;
public class JSP {
public static void main(String[] args){
Connection myConn = null;
Statement st= null;
ResultSet rs= null;
try {
Class.forName("com.mysql.jdbc.Driver");
myConn = DriverManager.getConnection("jdbc:mysql://localhost:3306/customer", "root", "Gspot");
st = myConn.createStatement();
String query = "select * from customers";
rs = st.executeQuery(query);
while(rs.next()){
System.out.println(rs.getString("name"));
}
} catch(SQLException e){
e.printStackTrace();
} catch(ClassNotFoundException e) {
System.out.println("wow");
}
}
}
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