错误 找不到或无法加载主类 mysql_Eclipse连接数据库的时候显示错误 找不到或无法加载主类 MyJDBC.Myjdbc...

代码如下packageMyJDBC;importjava.sql.DriverManager;importjava.sql.SQLException;importcom.mysql.jdbc.Connection;importcom.mysql.jdbc.Statement;publicclassMyjdbc{publicstat...

代码如下

package MyJDBC;

import java.sql.DriverManager;

import java.sql.SQLException;

import com.mysql.jdbc.Connection;

import com.mysql.jdbc.Statement;

public class Myjdbc {

public static void main(String args[]){

insert();

}

//连接数据库地址

public static String URL = "jdbc:mysql://localhost:3306/test";

public static String USERNAME = "root";

public static String PASSWORD = "09281010";

public static void insert(){

try {

// 1: 加载数据库驱动程序

Class.forName("com.mysql.jdbc.Driver");

//2： 获取数据库连接

try {

Connection conn = (Connection) DriverManager.getConnection(URL, USERNAME, PASSWORD);

//3：构造SQL语句

String sql = "insert into person(name,age,description)value('小白'，'18','一个猥琐的男人') ";

//4 ：构造一个statement 实例(用来发送SQL语句的载体)

Statement stat = (Statement) conn.createStatement();

//5 :执行SQL语句

stat.executeUpdate(sql);

//6: 关闭连接

stat.close();

conn.close();

System.out.println("success");

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

} catch (ClassNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

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