java代码实现备份MySQL数据库

 public static void backupMysqlDatabase(String mysqlBinUrl, String hostName,
   String dataBase, String userName, String passwd, String outFilePath)
   throws Exception {
  // 组装MySQL的备份命令
  StringBuilder sqlStr = new StringBuilder();
  sqlStr.append(mysqlBinUrl).append("mysqldump -u").append(userName)
    .append(" -p").append(passwd).append(" ").append(dataBase);
  if (hostName != null && !hostName.equals("")) {
   sqlStr.append(" ").append(" -h").append(hostName);
  }
  // --default-character-set=gb2312
  // 调用系统cmd 命令执行备份命令
  Runtime rt = Runtime.getRuntime();
  Process process = rt.exec(sqlStr.toString());
  InputStream in = process.getInputStream();// 控制台的输出信息作为输入流
  InputStreamReader isr = new InputStreamReader(in, "utf8");

  StringBuilder sb = new StringBuilder("");
  String inStr;
  // 组合控制台输出信息字符串
  BufferedReader br = new BufferedReader(isr);
  while ((inStr = br.readLine()) != null) {
   sb.append(inStr).append("\r\n");
  }

  // 把备份数据写入到文件中
  FileOutputStream fout = new FileOutputStream(outFilePath);
  OutputStreamWriter writer = new OutputStreamWriter(fout, "utf8");
  writer.write(sb.toString());
  writer.flush();
  // 写完文件，关闭相应的流
  in.close();
  isr.close();
  br.close();
  writer.close();
  fout.close();
 }
    public static void main(String[] args) {  
        // TODO Auto-generated method stub  
     BackupDb  backupMysqlDb = new BackupDb ();  
        String hostName = "192.168.1.226";  
        String dataBase = "iae";//is  
        String userName = "iaeuser";  
        String passwd = "iaedata";  
        String outFilePath = "D:\\backupmysql.sql";
        String outFilePath1 = "E:\\backupmysql.sql";
        String mysqlBinUrl="C:/Program Files/MySQL/MySQL Server 5.1/bin/";
        try {  
         backupMysqlDb.backupMysqlDatabase(mysqlBinUrl,hostName,dataBase, userName, passwd, outFilePath1);  
        } catch (Exception e) {  
         // TODO Auto-generated catch block  
         e.printStackTrace();  
         System.out.println(" 备份MySQL失败");  
        }  
        System.out.println(" 备份MySQL 成功");  
      }