Question

我正在尝试使用java恢复mysql sql文件，但我不知道为什么它不起作用。代码如下。

/*NOTE: Getting path to the Jar file being executed*/
            CodeSource codeSource = DBmanager.class.getProtectionDomain().getCodeSource();
            File jarFile = new File(codeSource.getLocation().toURI().getPath());
            String jarDir = jarFile.getParentFile().getPath();

            /*NOTE: Creating Database Constraints*/
            String dbName = "dth";
            String dbUser = "root";
            String dbPass = "root";

            String restorePath ="\""+ jarDir + "\\backup" + "\\" + s+"\"";


            /*NOTE: Used to create a DOS command*/
            String executeCmd = "";
            executeCmd = "C:\\xampp\\mysql\\bin\\mysql -u" + dbUser + " -p" + dbPass + " --database " + dbName + " < " + restorePath;


            System.out.println(executeCmd);


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

            if (processComplete == 0) {
                JOptionPane.showMessageDialog(null, "Successfully restored from SQL : " + s);
            } else {
                JOptionPane.showMessageDialog(null, "Error at restoring");
            }

代码执行但java swing停留在运行时命令上。 System.out.println输出的行是这样的。

C：\ xampp \ mysql \ bin \ mysql -uroot -proot --database dth＆lt; “F：\ Final Year Project \ Final \ build \ backup \ 0_Harish_2013-02-17-20-05-12.sql”

如果我在命令行中复制并粘贴它，这条线就可以正常工作。 Dunno为什么java swing接口只是陷入等待状态。（相同的查询在cmd上花了2秒钟，在java上我等了5分钟。）

修改我运行了streamgobbler但仍然没有任何好处，它仍然给出了Exit Value：1这显然是问题IllegalThreadStateException我该如何解决这个问题？

EDIT2：

当悬挂仍然存在时，狼吞虎咽没有帮助，继承人gobbler的输出

OUTPUT>C:\xampp\mysql\bin\mysql  Ver 14.14 Distrib 5.5.27, for Win32 (x86)
OUTPUT>Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
OUTPUT>
OUTPUT>Oracle is a registered trademark of Oracle Corporation and/or its
OUTPUT>affiliates. Other names may be trademarks of their respective
OUTPUT>owners.
OUTPUT>
OUTPUT>Usage: C:\xampp\mysql\bin\mysql [OPTIONS] [database]
OUTPUT>  -?, --help          Display this help and exit.
OUTPUT>  -I, --help          Synonym for -?
OUTPUT>  --auto-rehash       Enable automatic rehashing. One doesn't need to use
OUTPUT>                      'rehash' to get table and field completion, but startup
OUTPUT>       and reconnecting may take a longer time. Disable with
OUTPUT>         --disable-auto-rehash.
OUTPUT>                      (Defaults to on; use --skip-auto-rehash to disable.)
OUTPUT>  -A, --no-auto-rehash 
OUTPUT>                      No automatic rehashing. One has to use 'rehash' to get
OUTPUT>                      table and field completion. This gives a quicker start of
OUTPUT>                      mysql and disables rehashing on reconnect.
OUTPUT> --auto-vertical-output 
OUTPUT>                      Automatically switch to vertical output mode if the
OUTPUT>                      result is wider than the terminal width.
OUTPUT>  -B, --batch         Don't use history file. Disable interactive behavior.
OUTPUT>         (Enables --silent.)
OUTPUT>  --character-sets-dir=name 
OUTPUT>       Directory for character set files.
OUTPUT>  --column-type-info  Display column type information.
OUTPUT>  -c, --comments      Preserve comments. Send comments to the server. The
OUTPUT>                      default is --skip-comments (discard comments), enable
OUTPUT>

（省略其余用法信息）

Answer 1

我能够通过将String命令更改为String数组命令来解决问题。这使得Gobbler的使用变得多余。

Answer 2

这很可能是因为您没有从输出流中读取 - 它们会在缓冲区已满时阻塞。请阅读this 您可能希望使用类似Commons Exec的内容您还遇到了使用管道（<）的问题，这是一个bash结构，无效！
您需要在java中的文件中创建FileInputStream，并将其设置为代码中的InputStream。看看this示例。

在java中创建mysql restore命令时出错

2 个答案: