用Java连接DB2

Question

我需要将DB2与Java连接.请帮助我在ECLIPSE中将DB2与java 连接起来 .如果你可以一步一步地指导我,那将是非常有帮助请让我知道如何在eclipse代码片段中添加classpath:

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;

public class connection {
    public static void main(String[] argv) {
        try {
            Class.forName("COM.ibm.db2.jdbc.app.DB2Driver");
        }
        catch (ClassNotFoundException e) {
            System.out.println("Please include Classpath  Where your DB2 Driver is located");
            e.printStackTrace();
            return;
        }
        System.out.println("DB2 driver is loaded successfully");
        Connection conn = null;
        PreparedStatement pstmt = null;
        ResultSet rset=null;
        boolean found=false;
        try {
            conn = DriverManager.getConnection("jdbc:db2:sabarish","db2admin","Murugasaranam");
            if (conn != null)
            {
                System.out.println("DB2 Database Connected");
            }
            else
            {
                System.out.println("Db2 connection Failed ");
            }
            pstmt=conn.prepareStatement("Select * from bo");
            rset=pstmt.executeQuery();
            if(rset!=null)
            {

                while(rset.next())
                {
                    found=true;
                    System.out.println("Class Code: "+rset.getString("clcode"));
                    System.out.println("Name: "+rset.getString("name"));
                }
            }
            if (found ==false)
            {
                System.out.println("No Information Found");
            }
        } catch (SQLException e) {
            System.out.println("DB2 Database connection Failed");
            e.printStackTrace();
            return;
        }
    }

}

在运行代码时,我得到以下例外:

 java.lang.ClassNotFoundException: COM.ibm.db2.jdbc.app.DB2Driver
 at java.net.URLClassLoader$1.run(Unknown Source)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(Unknown Source)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Unknown Source)
 at connection.main(connection.java:11)

Answer 1

您需要更正包名称.

Class.forName("com.ibm.db2.jdbc.app.DB2Driver");

在项目中添加.jar => Project + Properties + Java Build Path +选择"Libraries"选项卡+ Add External Jars ...

Answer 2

请尝试使用

Class.forName("com.ibm.db2.jcc.DB2Driver");

希望这个链接可以帮助你更多.PUBLIB

问候

Answer 3

驱动程序名称取决于我们使用的驱动程序.
使用COM.ibm.db2.jdbc.app.DB2Drive时,db2java.zip在你的路径.
使用com.ibm.db2.jcc.DB2Driver时db2jcc.jar和db2jcc_license_cu.jar在类路径中.

另请遵循以下教程
Razorsql帮助
IBM JDBC帮助

Answer 4

认为你需要穿上db2jcc.jar你的类路径.