package jdbcconnection;
import java.sql.*;
public class Jdbc2{
public static void main(String[] args) throws Throwable {
//Resgister the driver through
Class.forName("oracle.jdbc.driver.OracleDriver");
System.out.println("registered driver successfully");
//Create the connection and assign to connection reference
Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:CUSTDB", "scott", "tiger");
System.out.println("connection successsfully");
//create a statement through connection reference and assign to statement reference
Statement stmt=con.createStatement();
System.out.println("statement object created successfully");
//call the executequery method through statement reference and pass the query as argument.
ResultSet rs=stmt.executeQuery("select * from emp");
System.out.println("query is executed");
while(rs.next()){
int i=rs.getInt(1);
String str=rs.getString(2);
String str1=rs.getString(3);
int i1=rs.getInt(4);
System.out.println(i+"\t"+str+"\t"+str1+"\t"+i1);
}
}
}
error--值java.sql.SQLException:IO异常:端口号数字格式无效
Exception in thread "main" java.sql.SQLException: Io exception: Invalid number format for port number
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:439)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at jdbcconnection.Jdbc2.main(Jdbc2.java:13)
我们很乐意提供帮助,但您需要在此格式化问题。只是复制粘贴代码不会得到任何答案,只是被遗忘投票。我们不知道问题是什么(什么是中断)或任何有关问题的信息。我们有代码,一些文本错误,没有别的可以继续。在尝试帮助/解决这个问题之前,大多数人都需要更多的东西......不管它是什么。 – Walls