用是jdk1.6 oracle是10.0.1.0.2的
是不是驱动不对呀?找了好几个 ojdbc14 class12 都不行 就是没找到对应jdk1.6的jdbc
问题解决不了,非常郁闷 望高人指点!拽兄弟一把,就此谢过!(就这么几行代码,怎么就不对呐?)
import java.sql.*;
public class Conn {
static public void main(String args [])
{
try{
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
}
catch(Exception e){}
String url = "jdbc:oracle:thin:@localhost:1521:orcl";
String user = "scott";
String password = "11";
try{
Connection conn = DriverManager.getConnection(url,user,password);
Statement sm = conn.createStatement();
ResultSet result = sm.executeQuery("select job from emp;");
while(result.next())
{
String job=result.getString("JOB");
System.out.println(job);
}
conn.close();
}
catch(Exception e){e.printStackTrace();}
}
}java.sql.SQLException: Io 异常: The Network Adapter could not establish the connection
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 Conn.main(Conn.java:13)
是不是驱动不对呀?找了好几个 ojdbc14 class12 都不行 就是没找到对应jdk1.6的jdbc
问题解决不了,非常郁闷 望高人指点!拽兄弟一把,就此谢过!(就这么几行代码,怎么就不对呐?)
import java.sql.*;
public class Conn {
static public void main(String args [])
{
try{
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
}
catch(Exception e){}
String url = "jdbc:oracle:thin:@localhost:1521:orcl";
String user = "scott";
String password = "11";
try{
Connection conn = DriverManager.getConnection(url,user,password);
Statement sm = conn.createStatement();
ResultSet result = sm.executeQuery("select job from emp;");
while(result.next())
{
String job=result.getString("JOB");
System.out.println(job);
}
conn.close();
}
catch(Exception e){e.printStackTrace();}
}
}java.sql.SQLException: Io 异常: The Network Adapter could not establish the connection
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 Conn.main(Conn.java:13)
2.确定user,password是不是对的我专门写了篇JDBC连ORACLE的文章 你可以参考下
地址:http://blog.csdn.net/java_cxrs/archive/2009/02/23/3929704.aspx
String url = "jdbc:oracle:thin:@localhost:1521:orcl"; 把这个localhost改成我的IP就对了 应该是系统中locolhost对应的地址有错误
用127.0.0.1也不对 就用IP地址能编译通过,正确显示这个问题憋了我一晚上,憋死我了 终于痛快了