Question

我是Mysql和C＃的新手。我曾尝试编写一个函数来备份我的数据库。

这是我写的：

public static void Backup()
{
    try
    {
        DateTime Time = DateTime.Now;
        int year = Time.Year;
        int month = Time.Month;
        int day = Time.Day;
        int hour = Time.Hour;
        int minute = Time.Minute;
        int second = Time.Second;
        int millisecond = Time.Millisecond;

        string path;
        path = "C:\\MySqlBackup" + year + "-" + month + "-" + day +
        "-" + hour + "-" + minute + "-" + second + "-" + millisecond +".sql";

        StreamWriter file = new StreamWriter(path);

        ProcessStartInfo psi = new ProcessStartInfo();
        psi.FileName = "C:\\Program Files\\MySQL\\MySQL Server 5.1\\bin\\mysqldump";
        psi.RedirectStandardInput = false;
        psi.RedirectStandardOutput = true;

        psi.Arguments = string.Format(@"-u{0} -p{1} -h{2} {3} > {4};",
        uid, password, server, database, path);
        psi.UseShellExecute = false;

        Process process = Process.Start(psi);

        Process process = Process.Start(psi);

        string output;
        output = process.StandardOutput.ReadToEnd();
        file.WriteLine(output);
        process.WaitForExit();
        file.Close();
        process.Close();
    }
    catch (IOException ex)
    {
        Console.Write("Error , unable to backup!");
    }
}

问题是在备份文件中我只得到第一行：

-- MySQL dump 10.13 Distrib 5.1.51, for Win32 (ia32)
-- 
-- Host: localhost Database: try
-- ------------------------------------------------------
-- Server version 5.1.51-community

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;

但所有表格和所有记录都不是备份。

我尝试在cmd上运行备份，但它运行正常。我找不到原因。

有人可以帮帮我吗？我会感激任何帮助。感谢

Answer 1

我想知道为什么你有这两行：

Process process = Process.Start(psi);

也许这与它有关？

Answer 2

问题在于这一行：

string.Format(@"-u{0} -p{1} -h{2} {3} > {4};",uid, password, server, database, path);

只需将该行重写为：

string.Format(@"-u{0} -p{1} -h{2} {3}",uid, password, server, database, path);

使用C＃backup的MySQL备份停在中间

2 个答案: