如何从.java创建JAR-HowdoImakeaJARfroma.java

61  

Open a command prompt.

打开命令提示符。

Go to the directory where you have your .java files

转到您拥有.java文件的目录

Create a directory build

创建目录构建

Run java compilation from the command line

从命令行运行java编译

javac -d ./build *.java

if there are no errors, in the build directory you should have your class tree

如果没有错误，在构建目录中你应该有你的类树

move to the build directory and do a

移动到构建目录并执行

jar cvf YourJar.jar *

For adding manifest check jar command line switches

用于添加清单检查jar命令行开关

15  

Simply with command line:

只需使用命令行：

javac MyApp.java
jar -cf myJar.jar MyApp.class

Sure IDEs avoid using command line terminal

当然IDE避免使用命令行终端

6  

Ok this is the solution I would have liked to find, instead here I write it:

好的，这是我希望找到的解决方案，而不是在这里我写的：

First create the directory structure corresponding to the package defined for the .java file, if it is my.super.application create the directory "my" and inside it "super" and inside it the .java file "App.java"

首先创建与.java文件定义的包对应的目录结构，如果它是my.super.application创建目录“my”并在其中“super”，并在其中创建.java文件“App.java”

then from command line:

然后从命令行：

   javac -cp /path/to/lib1.jar:/path/to/lib2.jar path/to/my/super/App.java

Notice the above will include multiple libraries, if under windows use "," to separate multiple files otherwise under GNU/Linux use ":" To create a jar file

注意上面将包含多个库，如果在windows下使用“，”分隔多个文件，否则在GNU / Linux下使用“：”创建一个jar文件

   jar -cvfe App.jar App my/app/

the above will create the application with its corresponding Manifest indicating the App as the main class.

上面将创建应用程序及其相应的Manifest，指示App为主类。

Including the required libraries inside the jar file is not possible using java or jar command line parameters.

使用java或jar命令行参数无法在jar文件中包含所需的库。

You can instead:

你可以改为：

1. manually extract libraries to the root folder of the jar file
2. 手动将库提取到jar文件的根文件夹
3. use an IDE such as Netbeans and insert a rule inside post-jar section of nbproject/build-impl.xml to extract the libraries inside the jar. See below.
4. 使用诸如Netbeans之类的IDE并在nbproject / build-impl.xml的post-jar部分中插入规则以提取jar中的库。见下文。

the file.reference names are found inside project.properties file after you added the libraries to the Netbeans IDE.

将库添加到Netbeans IDE后，可以在project.properties文件中找到file.reference名称。

4  

This can be done without terminal, directly from IDE. Netbeans, for example.

这可以在没有终端的情况下直接从IDE完成。例如，Netbeans。

1. Create a separate project with packages (Create Project - Java - Java Class Library).
2. 使用包创建单独的项目（Create Project - Java - Java Class Library）。
3. Put your .java classes there.
4. 把你的.java类放在那里。
5. Build this project.
6. 建立这个项目。
7. Go to your project folder and find build and dist folders there.
8. 转到项目文件夹，在那里找到build和dist文件夹。
9. Find .jar file in your dist folder.
10. 在你的dist文件夹中找到.jar文件。
11. Get your other project and add this .jar file to project libraries.
12. 获取您的其他项目并将此.jar文件添加到项目库。
13. You can now reference classes from this library and its methods directly from code, if import is automatically done for you.
14. 现在，如果自动为您执行导入，您现在可以直接从代码中引用此库及其方法中的类。

2  

Often you will want to specify a manifest, like so:

通常，您需要指定清单，如下所示：

jar -cvfm myJar.jar myManifest.txt myApp.class

Which reads: "create verbose jarFilename manifestFilename", followed by the files you want to include. Verbose means print messages about what it's doing.

其中包含：“create verbose jarFilename manifestFilename”，后跟您要包含的文件。详细信息表示打印有关其正在执行的操作的消息。

Note that the name of the manifest file you supply can be anything, as jar will automatically rename it and put it into the right directory within the jar file.

请注意，您提供的清单文件的名称可以是任何名称，因为jar会自动重命名它并将其放入jar文件中的正确目录中。

0  

Here is another fancy way of doing this:

这是另一种奇特的方式：

$ ls | grep .java | xargs -I {} javac {} ; jar -cf myJar.jar *.class

Which will grab all the .java files ( ls | grep .java ) from your current directory and compile them into .class (xargs -I {} javac {}) and then create the jar file from the previously compiled classes (jar -cf myJar.jar *.class).

这将从当前目录中获取所有.java文件（ls | grep .java）并将它们编译为.class（xargs -I {} javac {}），然后从以前编译的类中创建jar文件（jar -cf myJar.jar * .class）。