如何使用Eclipse将数据插入Google Cloud MySQL数据库

时间:2018-07-29 14:29:27

标签: java mysql eclipse google-cloud-platform

我正在尝试通过我的通过eclipse在java上构建的应用程序将数据插入Google Cloud mysql数据库中。代码如下:

package com.example.dao;
import java.sql.Connection;
import java.sql.DriverManager;

public class dao {
    private static Connection con;
    public static Connection getcon(){
        try{
            String instanceConnectionName = "edu-vitae1";
            String databaseName = "eduvitae";
             String username = "root";
             String password = "edu";
             String jdbcUrl = String.format(
                     "jdbc:mysql://google/eduvitae?cloudSqlInstance=edu-vitae1&socketFactory=com.google.cloud.sql.mysql.SocketFactory&user=root&password=root&useSSL=false",
                        databaseName,
                        instanceConnectionName);

                    Connection con = DriverManager.getConnection(jdbcUrl, username, password);
            Class.forName("com.mysql.jdbc.GoogleDriver");
            //con=DriverManager.getConnection("jdbc:google:mysql://edu-vitae1>/edu-vitae?user=root&password=root");
        }
        catch (Exception e) {
            System.out.println(e);
        }
        return con;
    }

}

部署项目后,出现此错误:

  

java.sql.SQLException:未找到适合jdbc的驱动程序:mysql:// google / eduvitae?cloudSqlInstance = edu-vitae1&socketFactory = com.google.cloud.sql.mysql.SocketFactory&user = root&password = root&useSSL = false

任何人都可以帮助我解决此问题。 预先感谢您

1 个答案:

答案 0 :(得分:1)

3天后,我在代码中发现一个愚蠢的错误。注意,在我的代码中,我首先建立了连接,然后使用Class.forName(“ com.mysql.jdbc.GoogleDriver”)加载了驱动程序;这是不正确的。您应该先使用Class.forName加载驱动程序,然后再使用DriverManager.getConnection建立连接。请不要犯这种愚蠢的错误,就像我在这种愚蠢的错误上浪费了三天一样。以下代码供您参考:

 package com.example.dao;

import java.sql.Connection;
import java.sql.DriverManager;

public class dao {
    private static Connection con;
    public static Connection getcon(){
        try{
            String instanceConnectionName = "edu-vitae1";
            String databaseName = "eduvitae";
             String username = "root";
             String password = "root";
             Class.forName("com.mysql.jdbc.Driver");
             String jdbcUrl = String.format(
                     "jdbc:mysql://google/eduvitae?cloudSqlInstance=edu-vitae1&socketFactory=com.google.cloud.sql.mysql.SocketFactory&user=root&password=root&useSSL=false",
                  databaseName,
                   instanceConnectionName);
                    Connection con = DriverManager.getConnection(jdbcUrl, username, password);
             //con=DriverManager.getConnection("jdbc:mysql://35.200.134.221/edu","root","root");
        }
        catch (Exception e) {
            System.out.println(e);
        }
        return con;
    }

}