我已经尝试在eclipse中将我的java servlet项目连接到我的mysql服务器,并且它给了我这个错误 - java。 lang.ClassNotFoundException:com.mysql.jdbc.Driver无法通过eclipse连接到mysql - java.lang.ClassNotFoundException:com.mysql.jdbc.Driver
现在,我已经从mysql网站下载了最新的连接器jdbc,并且将它放在我的java类路径中,并打开了该选项。
此外,我没有检查过的驱动程序类真的存在于我下载的jar文件中,而且是。
我在谷歌检查了几个小时这个问题,并找不到解决方案。
这里是我的代码,hopfully你们能帮助我
LoginServlet.java
package androidLogin;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.mysql.jdbc.Connection;
@WebServlet("/LoginServlet")
public class LoginServlet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println("GET METHOD");
Connection con = DBConnectionHandler.getConnection();
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
DBConnectionHandler.java
package androidLogin;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.mysql.jdbc.Connection;
public class DBConnectionHandler {
Connection con = null;
public static Connection getConnection() {
Connection con = null;
try {
Class.forName("com.mysql.jdbc.Driver");//Mysql Connection
con =(Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/loginuser", "host", "13241234");//mysql database
if(con!=null){
System.out.println("connected successfully");
}
} catch (SQLException | ClassNotFoundException ex) {
System.out.println(ex);
// Logger.getLogger(DBConnectionHandler.class.getName()).log(Level.SEVERE, null, ex);
System.out.println("not connected to database");
}
return con;
}
}
请帮助球员,我真的很绝望。
你是如何设置类路径的? – Marged