mysql数据备份-java实现

import java.io.*;

public class DataBackupService {

    public static final String CMD = "mysqldump --databases -h%s -P%s -u%s -p%s %s";

    
    public void backup(String mysqlIp,
                       String mysqlPort,
                       String userName,
                       String password,
                       String database) {
        try {
            String cmd = String.format(CMD,mysqlIp,mysqlPort,userName,password,database);
            Process process = Runtime.getRuntime().exec(cmd);
            new InputStreamProcessor(process).start();
            new ErrorInputStream(process).start();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    static class InputStreamProcessor extends Thread{
        private final Process process;

        private final String path = String.format("d:\%s_wms_ts_test.sql",System.currentTimeMillis());

        public InputStreamProcessor(Process process) {
            this.process = process;
        }

        @Override
        public void run() {
            try (InputStream is = process.getInputStream();
                 FileOutputStream out = new FileOutputStream(path);){
                byte[] b = new byte[1024];
                int len = -1;
                while ((len = is.read(b)) != -1) {
                    out.write(b, 0, len);
                }
            } catch (Exception e) {
                throw new RuntimeException();
            }
        }
    }

    static class ErrorInputStream extends Thread{
        private final Process process; // 控制台errorStream

        private final String path = String.format("d:\%s_error_wms_ts_test.sql",System.currentTimeMillis());

        public ErrorInputStream(Process process) {
            this.process = process;
        }

        @Override
        public void run() {
            try (InputStream is = process.getErrorStream();
                 FileOutputStream out = new FileOutputStream(path);){
                byte[] b = new byte[1024];
                int len = -1;
                while ((len = is.read(b)) != -1) {
                    out.write(b, 0, len);
                }
            } catch (Exception e) {
                throw new RuntimeException();
            }
        }
    }

    public static void main(String[] args) {
        String mysqlIp = "127.0.0.1";
        String mysqlPort = "3306";
        String userName = "root";
        String password = "root";
        String database = "wms_ts_test";
        DataBackupService service = new DataBackupService();
        service.backup(mysqlIp,mysqlPort,userName,password,database);
    }
}