在java中執行mysql restore cmd runtimeProcess.waitFor（）總是返回1

Question

以下代碼總是返回1.我不明白爲什麼。

String executeCmd[] = {"mysql"," -u" + dbUser," -p" + dbPass," -A"," -D"+dbName ," < " + restorePath}; 

Process runtimeProcess = Runtime.getRuntime().exec(executeCmd); 
int processComplete = runtimeProcess.waitFor(); 

if (processComplete == 0) { 
    System.out.println("Successfully restored from SQL : " + s); 
} else { 
    System.out.println("Error at restoring"); 
} 

Answer 1

我已經開始試圖解決這個問題一個星期，我終於想通了。

問題是，上面的代碼中的<（流重定向）。在Java中執行進程時不能使用流重定向（在這種情況下，它不起作用）。

所以，你必須做到這一點，而不使用流重定向。這樣做的一個方法是：

mysql -u root -p**** --execute "SOURCE \\path\\to\\sql" 

嘗試：

String executeCmd[] = {"mysql"," -u "+dbUser," -p"+dbPass," -A"," -D"+dbName," --execute"," \"SOURCE "+restorePath+"\""}; 

或者乾脆：

String executeCmd = "mysql -u "+dbUser+" -p"+dbPass+" -A -D "+"dbName -e \"SOURCE "+restorePath+"\""; 

Answer 2

重定向<由命令shell解釋。嘗試

String executeCmd[] = 
     {"bash", "-c", "mysql", "-u", dbUser, "-p", dbPass, "-A","-D", dbName , "< ", restorePath};