1. 赋予scott用户连接权限：Grant connect to scott； 2. 在Myeclipse中新建java项目导入jdbc包（classes12.jar）: 右键项目 bulid path -〉add external archives 选择classes12.jar 3. 新建java文件, lianxi01.java import java.sql.Connection; import ja

2. 在Myeclipse中新建java项目导入jdbc包（classes12.jar）:

右键项目 bulid path -〉add external archives 选择classes12.jar

3. 新建java文件, lianxi01.java

import java.sql.Connection;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.sql.Statement;

importoracle.jdbc.*;

importoracle.jdbc.driver.*;

publicclasslianxi01 {

publicstaticvoid main(String[] args)throws SQLException, ClassNotFoundException{

//TODO Auto-generated method stub

oracle.jdbc.OracleDriver.isDebug();

Class.forName("oracle.jdbc.driver.OracleDriver");

java.sql.DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());

//

String url ="jdbc:oracle:thin:@100.100.100.20:1521:dbsid2";

String user="scott";

String password="tiger";

String sql="select table_name from user_tables";

String sql2="select * from dept";

//

Connection con=java.sql.DriverManager.getConnection(url, user, password);

Statement stmt=con.createStatement();

ResultSet rs=((java.sql.Statement) stmt).executeQuery(sql2);

while(rs.next()){

// String s=rs.getString(2);

System.out.println(rs.getString(1) +" " + rs.getString(2)+" "+ rs.getString(3));

}

}

}

4. 点击运行，即可进行数据库查询

5. 注： String url一行，@100.100.100.20:1521:dbsid2需要根据实际IP和服务名进行修改。