java程序中备份Mysql数据库

１．得到系统的类型．不同的系统有不同的文件分割符号．

public static boolean isLinux(){
     String OS = System.getProperty("os.name").toLowerCase();
        if (OS.indexOf("windows") > -1) {
         return false;
        }
        else{
         return true;
        }
    } 

２．根据不同的系统生成不同的命令：

／／表名

 String dbs = "ACTION DDINFO DEVICE DEVICEALARM DEVICEINFO DEVICELOG ＂；

List command=new ArrayList();

 if (isLinux) {
                command.add(exec_path+ "mysqldump");
                command.add("--opt");
                command.add("--user=root");
                command.add("--lock-all-tables=true");
                command.add("--result-file=" + dumpedFilepath+File.separator+SERVER_BACKUP_SQL_FILE);
                command.add("orca");
                String[] str=dbs.split(" ");
                for(int i=0;i<str.length;i++)
                command.add(str[i]);  
            }
            else {
                command.add("\""+exec_path+ "mysqldump\"");// is this work?
                command.add("--opt");
                command.add("--user=root");
                command.add("--lock-all-tables=true");
                command.add("--result-file=" + dumpedFilepath+File.separator+SERVER_BACKUP_SQL_FILE);
                command.add("orca");
                String[] str=dbs.split(" ");
                for(int i=0;i<str.length;i++)
                command.add(str[i]);

３．运行命令

得到Runtime

private Runtime cmd = Runtime.getRuntime();

Process p = cmd.exec((String[])command.toArray(new String[0]),null);
         String line;
            BufferedReader br=new BufferedReader(new InputStreamReader(p.getErrorStream()));
            while ( (line = br.readLine()) != null)
                log.error("<<<<<<<" + line);

Process 是为了显示错误信息