java - 如何使用 java 设置类路径并连接到 DB2

Question

我不知道如何在java项目中设置类路径。

这是我运行的代码:

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:DB2PDBA","USERID","PASSWORD");
            if (conn != null)
            {
                System.out.println("DB2 Database Connected");
            }
            else
            {
                System.out.println("Db2 connection Failed ");
            }

我的错误是:

java.lang.ClassNotFoundException: com.ibm.db2.jdbc.app.DB2Driver

Answer 1

当我们说在类路径中放置某些内容时，它的意思是:

you should put the related jar files that your app needs to run the entire application somewhere in your project.

请点击下面的链接创建一个 DB2 应用程序 -> IBM Example about DB2

您唯一需要做的是:

1. 将其添加到您的项目中
2. 更改凭据和数据库信息
3. 将 db2 jdbc jar 文件添加到您的项目