jdbc
package test;import java.sql.*;
public class jdbc {
String dbUrl = "jdbc:oracle:thin:@127.0.0.1:1521:orcl";
String theUser = "admin";
String thePw = "manager";
Connection c = null;
Statement conn;
ResultSet rs = null;
public jdbc() {
try {
c = DriverManager.getConnection(dbUrl, theUser, thePw);
conn = c.createStatement();
} catch (Exception e) {
e.printStackTrace();
}
}
public boolean executeUpdate(String sql) {
try {
conn.executeUpdate(sql);
return true;
} catch (SQLException e) {
e.printStackTrace();
return false;
}
}
public ResultSet executeQuery(String sql) {
rs = null;
try {
rs = conn.executeQuery(sql);
} catch (SQLException e) {
e.printStackTrace();
}
return rs;
}
public void close() {
try {
conn.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
ResultSet rs;
jdbc conn = new jdbc();
rs = conn.executeQuery("selecｔ * from test");
try {
while (rs.next()) {
System.out.println(rs.getString("id"));
System.out.println(rs.getString("name"));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
页:
[1]