Springboot 实现数据库备份还原的方法

 /* 备份数据库 */
  @GetMapping("backupSQL")
  public ModelAndView backupSQL(Map<String, Object> map){
    String fileName = "backup_" + new Date().getTime() + ".sql";
    String cmd = "mysqldump -uroot -p123456 dbName > " + projectUrlConfig.getBackPath() + fileName; //-u后的root为mysql数据库用户名，-p后接的123456为该用户密码，注意不要有空格；dbName填写需要备份数据的数据库名称，大于号后接生成文件路径
    try {
      Runtime.getRuntime().exec(cmd);
    }catch (Exception e){
      log.error("【备份数据库】失败：{}", e.getMessage());
      map.put("msg", e.getMessage());
      return new ModelAndView("common/error", map);
    }
    log.info("【备份数据库】成功，SQL文件：{}", fileName);
    map.put("msg","备份数据库成功");return new ModelAndView("common/success", map);
  }

 @GetMapping("rollback")
  public ModelAndView rollback(@RequestParam("filename") String fileName, Map<String, Object> map){
    String path = projectUrlConfig.getBackPath() + fileName;
    try {
      Runtime runtime = Runtime.getRuntime();
      Process process = runtime.exec("mysql -uroot -p123456 --default-character-set=utf8 dbName");
      OutputStream outputStream = process.getOutputStream();
      FileInputStream fis = new FileInputStream(path);
      InputStreamReader isr = new InputStreamReader(fis, "utf-8");
      BufferedReader br = new BufferedReader(isr);
      String str = null;
      StringBuffer sb = new StringBuffer();
      while ((str = br.readLine()) != null) {
        sb.append(str + "\r\n");
      }
      str = sb.toString();
      OutputStreamWriter writer = new OutputStreamWriter(outputStream,"utf-8");
      writer.write(str);
      writer.flush();
      if(writer!=null){
        writer.close();
      }
      if(br!=null){
        br.close();
      }
      if(isr!=null){
        isr.close();
      }
      if(fis!=null){
        fis.close();
      }
      if(outputStream!=null){
        outputStream.close();
      }
    }catch (Exception e){
      log.error("【还原数据库】失败：{}", e.getMessage());
      map.put("msg", e.getMessage());
      return new ModelAndView("common/error", map);
    }
    log.info("【还原数据库】成功，还原文件：{}", fileName);
    map.put("msg","还原数据库成功");return new ModelAndView("common/success", map);
  }