mysql数据库备份及还原

数据库备份代码：

package com.gd.test;

import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Bcad {
    public static void main(String[] args) {
        try {
            Runtime rt = Runtime.getRuntime();

            // 调用 调用mysql的安装目录的命令
            Process child = rt.exec("D:/MySQL/bin/mysqldump.exe -h 121.28.144.94 -uroot -psanmi123 gdsite");
            // 设置导出编码为utf-8。这里必须是utf-8
            // 把进程执行中的控制台输出信息写入.sql文件，即生成了备份文件。注：如果不对控制台信息进行读出，则会导致进程堵塞无法运行
            InputStream in = child.getInputStream();// 控制台的输出信息作为输入流

            InputStreamReader xx = new InputStreamReader(in, "utf-8");
            // 设置输出流编码为utf-8。这里必须是utf-8，否则从流中读入的是乱码

            String inStr;
            StringBuffer sb = new StringBuffer("");
            String outStr;
            // 组合控制台输出信息字符串
            BufferedReader br = new BufferedReader(xx);
            while ((inStr = br.readLine()) != null) {
                sb.append(inStr + "
");
            }
            outStr = sb.toString();

            // 要用来做导入用的sql目标文件：
            FileOutputStream fout = new FileOutputStream("c:\test.sql");
            OutputStreamWriter writer = new OutputStreamWriter(fout, "utf-8");
            writer.write(outStr);
            writer.flush();
            in.close();
            xx.close();
            br.close();
            writer.close();
            fout.close();

            System.out.println("-------------------------");

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

数据库还原代码：

public static void restore(String databaseName) {
        try {
            Runtime runtime = Runtime.getRuntime();
            Process process = runtime
                    .exec("e:\MySQL\bin\mysql.exe -hlocalhost -uroot -p123 --default-character-set=utf8 "
                            + databaseName);
            OutputStream outputStream = process.getOutputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("C:\test.sql"), "utf-8"));
            String str = null;
            StringBuffer sb = new StringBuffer();
            while ((str = br.readLine()) != null) {
                sb.append(str + "
");
            }
            str = sb.toString();
            // System.out.println(str);
            OutputStreamWriter writer = new OutputStreamWriter(outputStream,
                    "utf-8");
            writer.write(str);
            writer.flush();
            outputStream.close();
            br.close();
            writer.close();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }