如何使用终端创建.jar文件 [英] How to create a .jar file using the terminal

问题描述

我正在尝试使用mac终端创建一个.jar文件但是有点麻烦。我按照这里的步骤进行了操作，但未成功。我收到此错误消息：

I'm trying to create a .jar file using the mac terminal but am having bit of trouble. I followed the steps here but was unsuccessful. I got this error message:

Failed to load Main-Class manifest attribute from
aclient.jar

那你究竟是怎么做的呢？我的java程序叫做Main.java，我把它编译成.class文件。现在该怎么办？

So how exactly do you go about doing it? My java program is called Main.java and I have compiled it into a .class file. Now what do I do?

谢谢

推荐答案

1）确保所有必需的文件都在目录中，你已经打开了一个终端/命令提示符并导航到该目录。

1) Ensure that all necessary files are within the directory, you have opened a terminal/Command Prompt and have navigated to that directory.

2）编译.java类，例如HelloWorld .java with

2) Compile the .java class, for example HelloWorld.java with

javac HelloWorld.java

3）这将产生JAR文件所需的.class文件。

3) This will produce a .class file needed for the JAR file.

4）接下来创建一个清单文件（使用扩展名.txt）使用文本编辑器并输入以下内容

4) Next create a manifest file (saved using the extension .txt) using the text editor and input the following

Main-Class: HelloWorld

或者你的文件名是什么。

or whatever your file's name is.

5）接下来创建JAR文件使用此代码：

5) Next create the JAR file using this code:

jar cfm HelloWorld.jar Manifest.txt HelloWorld.class

6）运行文件：

java -jar HelloWorld.jar

若有看见ms不清楚请参考这些网站：
创建一个jar文件和设置应用程序入口点。

If anything seems unclear consult these websites: creating a jar file and setting an applications entry point.

希望这有助于其他人，为汤姆喝彩！

Hope this helps others, cheers Tom!

编辑：

在inga的评论之后，值得注意的是，为了在jar中包含多个文件，您需要使用：

Following inga's comment it's worth noting that in order to include multiple files in the jar you need to use the:

javac *.java

后跟

jar cfm HelloWorld.jar Manifest.txt *.class

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