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我如何使用NSTask运行一个.sh文件并得到它的输出？

分类: 技术问答 • 2022-05-11 22:26:23
问题描述：

我需要运行一个.sh文件并获取它的输出。我还需要查看文件的设置。

I need to run an .sh file and get its output. I need to see the setup of the file as well.

.sh文件只需通过终端运行一个java应用程序。

The .sh file simply runs a java app through terminal.

任何想法？我真的坚持这个.....

Any ideas? I'm truly stuck on this.....

Elijah

server.sh文件： / p>

The server.sh file:

echo Starting Jarvis Program D.
ALICE_HOME=.
SERVLET_LIB=lib/servlet.jar
ALICE_LIB=lib/aliceserver.jar
JS_LIB=lib/js.jar

# Set SQL_LIB to the location of your database driver.
SQL_LIB=lib/mysql_comp.jar

# These are for Jetty; you will want to change these if you are using a different http server.
 HTTP_SERVER_LIBS=lib/org.mortbay.jetty.jar

 PROGRAMD_CLASSPATH=$SERVLET_LIB:$ALICE_LIB:$JS_LIB:$SQL_LIB:$HTTP_SERVER_LIBS
 java -classpath $PROGRAMD_CLASSPATH -Xms64m -Xmx128m org.alicebot.server.net.AliceServer $1

我当前的代码：

NSTask *server = [NSTask new];
[server setLaunchPath:@"/bin/sh"];
[server setArguments:[NSArray arrayWithObject:@"/applications/jarvis/brain/server.sh"]];

NSPipe *outputPipe = [NSPipe pipe];
[server setStandardInput:[NSPipe pipe]];
[server setStandardOutput:outputPipe];
[server launch];


NSMutableString *outputString = [NSMutableString string];
while ([outputString rangeOfString:@"Jarvis>"].location == NSNotFound) {
    [outputString appendString:[[[NSString alloc] initWithData:[[outputPipe fileHandleForReading] readDataToEndOfFile] encoding:NSUTF8StringEncoding] autorelease]];
    NSRunAlertPanel(@"", outputString, @"", @"", @"");

}

NSRunAlertPanel仅用于检查输出。现在我的代码是冻结，甚至没有到达警报面板。

The NSRunAlertPanel is just for checking the output. Now my code is freezing and not even getting to the alertpanel.

答

查看此问题。

有几个事情在您的脚本中固定：

There are a couple of things that should be fixed in your script:


  • 脚本应以
    shebang开头。还要确保
    脚本的可执行位设置。

  • 因为环境变量是相对于shell脚本目录设置的，所以需要确保脚本目录是当前目录。

  • 您需要导出应该对Java进程可见的环境变量。

  • exec 可用运行Jetty的Java可执行文件替换shell进程。

  • The script should begin with a shebang. Also make sure that the script has its executable bit set.
  • Because the environment variables are set up relative to the shell script directory, you need to make sure that the script directory is the current directory.
  • You need to export the environment variables that should be visible to the Java process.
  • In the last line you can use exec to replace the shell process with the Java executable that runs Jetty.

以下是脚本的修订版本：

Here is a revised version of your script:

#!/bin/sh
echo Starting Jarvis Program D.
cd "`dirname \"$0\"`"
export ALICE_HOME=.
export SERVLET_LIB=lib/servlet.jar
export ALICE_LIB=lib/aliceserver.jar
export JS_LIB=lib/js.jar

# Set SQL_LIB to the location of your database driver.
export SQL_LIB=lib/mysql_comp.jar

# These are for Jetty; you will want to change these if you are using a different http server.
export HTTP_SERVER_LIBS=lib/org.mortbay.jetty.jar

export PROGRAMD_CLASSPATH=$SERVLET_LIB:$ALICE_LIB:$JS_LIB:$SQL_LIB:$HTTP_SERVER_LIBS
exec java -classpath $PROGRAMD_CLASSPATH -Xms64m -Xmx128m org.alicebot.server.net.AliceServer $1

在目标中调用shell脚本-C具有多个参数：

Invoking the shell script in Objective-C with multiple arguments:

NSTask *server = [NSTask new];
[server setLaunchPath:@"/bin/sh"];
[server setArguments:[NSArray arrayWithObjects:@"/applications/jarvis/brain/server.sh", @"argument", nil]];
...

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