通過ssh運行mysql命令

Question

我有一個設置讓我在遠程服務器上自動進行日誌檢查。我創建了這樣的方法，它使用exec命令尾日誌這樣的..

Process p = Runtime.getRuntime().exec("ssh <user>@<domain> tail -f /location/logs 

我打印日誌到我的終端在那裏我可以運行正則表達式模式，以確保它們是正確的。

現在我需要檢查一些在服務器上的mysql表中的日誌條目。我建立了一個類似的方法，使用List來執行一系列命令來返回mysql表中的條目：

List<String> cmd = Arrays.asList("ssh user@domain mysql -u user -ppassword -h ipaddress", "use database", "SELECT column1, column2, etc FROM database"); 
    Process dumpcapProcess = Runtime.getRuntime().exec(cmd.toArray(new String[]{})); 

    String line; 
    // Reading the InputStream stream 
    BufferedReader reader = new BufferedReader(new InputStreamReader(dumpcapProcess.getInputStream())); 
    while ((line = reader.readLine()) != null) { 
     System.out.println(line); 

    } 

    // Reading the error stream for debug 
    reader = new BufferedReader(new InputStreamReader(dumpcapProcess.getErrorStream())); 
    while ((line = reader.readLine()) != null) { 
     System.out.println(line); 

但它不起作用。我打周圍使用exec字符串的語法如下所示：

List<String> cmd = Arrays.asList("ssh", "user@domain", "mysql", "-u", "user", "-ppassword", "-h", "ipAddress", "use databases", "SELECT columns FROM database"); 

，現在我我得到這個錯誤：

Usage: mysql [OPTIONS] [database] -?, --help Display this help and exit. -I, --help Synonym for -? --auto-rehash Enable automatic rehashing. One doesn't need to use 'rehash' to get table and field completion, but startup and reconnecting may take a longer time. Disable with --disable-auto-rehash. (Defaults to on; use --skip-auto-rehash to disable.) -A, --no-auto-rehash No automatic rehashing. One has to use 'rehash' to get table and field completion. This gives a quicker start of mysql and disables rehashing on reconnect. --auto-vertical-output Automatically switch to vertical output mode if the result is wider than the terminal width. -B, --batch Don't use history file. Disable interactive behavior. (Enables --silent.) --bind-address=name IP address to bind to. --character-sets-dir=name Directory for character set files. --column-type-info Display column type information. -c, --comments Preserve comments. Send comments to the server. The default is --skip-comments (discard comments), enable with --comments.

我怎樣才能運行MySQL命令返回結果我的eclipse終端？

Answer 1

您可以使用-e參數直接從命令行傳遞查詢。例如：

mysql -uuser -ppass -hhost -Ddatabase -e'show tables' 

這是未經測試，但它應該是這樣的：

List<String> cmd = Arrays.asList(
    "ssh", 
    "user@domain", 
    "mysql", 
    "-uuser", 
    "-ppassword", 
    "-h10.0.0.1", 
    "-Ddb", 
    "-e'SELECT columns FROM table'" 
); 

Answer 2

我覺得你的問題是，存在-p和密碼之間沒有空格。你應該嘗試建立您的命令是這樣的：

mysql --user=user_name --password=your_password db_name 

對於這裏更多的信息是文檔： http://dev.mysql.com/doc/refman/5.6/en/mysql.html