java - 获取MySQL安装路径

Question

我需要获取MySQL的安装路径，才能通过java代码进行数据库的导出和导入。目前正在使用eclipse。我需要在字符串变量“mySqlPath”中获取安装路径。

File fMysqlPath = new File("C:\\Program Files\\MySQL\\MySQL Server 5.1\\bin\\");
String executeCmd = "mysqldump -u " + Constants.DB_USER + " -p" + 
                    Constants.DB_PASSWORD + " " + Constants.DB_NAME + " -r " + 
                    FilePath + "\\" + FileName;
Process runtimeProcess = Runtime.getRuntime().exec(executeCmd, null, fMysqlPath);

这就是我所做的。这有一个依赖性问题。

我该如何解决这个问题？

Answer 1

你试过这个吗:

import java.sql.*;
import javax.sql.*;

public class MysqlPathFinderDemo{

public static void main(String args[]){
String dbtime;
String dbUrl = "jdbc:mysql://your.database.domain/yourDBname";
String dbClass = "com.mysql.jdbc.Driver";
String query = "Select * FROM users";

try {

      Class.forName("com.mysql.jdbc.Driver");
      Connection con = DriverManager.getConnection (dbUrl);
      Statement stmt = con.createStatement();
      res = Myconnection.st.executeQuery("select @@datadir");
      String Mysqlpath = "";

      while(res.next()){
          Mysqlpath=res.getString(1) ;
      }

      Mysqlpath = Mysqlpath.replace("Data", "bin"); 
      System.err.println("Mysql path is :"+a);
   } catch(Exception ee) {
   }
 }
}