How to import a GIT non-Eclipse Java project into

问题:

I have some problems importing a Java project into my workspace. I am following this tutorial - however I can not use the final Import existing projects step because the GIT repository I use does not include the Eclipse specific .project and .classpath files.

Use the New Projects wizard

Therefore the project is not recognizes as project and hence can not be imported. Therefore I tried my luck using the option Use the New Projects wizard and select "Java Project" in the next dialog. The problem is that this creates a new Java project without any content! The project is also not connected to the GIT repository.

Edit: This is a known bug of eGIT: Bug 324145 - Project import doesn't work for abitary project types - if you want this problem fixed vote for it...

Import as general Project

If I use Import as general Project Eclipse always wants to use the external repository directory as project directory which is not what I want and additionally the created Project is not Java-enabled.

Therefore I am asking why it is so complicated to import a Java project into Eclipse using eGIT?

回答1:

It is possible by first cloning the repository and then creating a General project based on that. Then you can convert it to Java project. Here is how:

• First go to File>Import...>Projects from GIT.
• In the Select a Git Repository view you first press Clone. And follow instructions. This will create a local "checkout" of the repository to your computer. You can set the folder to be your workspace so it looks like any other of your eclipse projects.
• After you have cloned the repository you get back to Import-view. Now you can select the repository you just cloned from the list.
• Click Next and select Import as General Project. Now you have a git repository to eclipse.
• Convert it to Java project: Add nature and buildCommand elements from other Java project to your .project file:

Relevant sections from .project:

<buildSpec>
    <buildCommand>
        <name>org.eclipse.jdt.core.javabuilder</name>
        <arguments>
        </arguments>
    </buildCommand>
</buildSpec>
<natures>
    <nature>org.eclipse.jdt.core.javanature</nature>
</natures>

Then from Project>Properties>Java Build Path>Source add your source folders (and possible libraries).

Edit: Added the conversion to Java project.

回答2:

With Git (especially EGit) your 2 best options are:

1) Create a java project in eclipse, and then create a linked folder to where the source lives in your git repository (mentioned by @mattb). I don't think EGit will connect to your git repo easily in this mode, but your eclipse specific project files will be in a different location than your source tree.

2) Create your java project and let it point to the external git repo (which you mentioned). It will create a .project and .classpath file where your source lives. Then using Team>Share Project will allow you to connect EGit to the already existing git repo.

Option 2 (which I use) allows the tools to work with java projects in a git repo reliably.

回答3:

May not be applicable to your project but if you are using Maven in the project, you can import it as Maven Project from Eclipse if you have m2e installed, this way all the needed files like .project, .classpath will be generated. I think that is a good approach because if your pom.xml is well-written, it can contain all the needed information about the project such as build target directory, classpath, java version etc., and it will probably work with most of the populer IDEs.

I suggest to get used to use Maven on every java project, even for a simple hello world application because I see it as some sort of "standardization" for Java projects.

回答4:

Create a new project in eclipse and just point the source directory at the existing sources, rather than the default path.

回答5:

here I saw all methods to import a non eclipse project into eclipse(open source git projects into eclipse) ... no need to copy .project or .classpath file to copy ... here is the step by step process-

Step 1. import the project from git. Paste the URL and import the project as a general project.

Step2. If you want to import it as a maven project you should have m2e plugin installed in your eclipse(eclipse marketplace).

Step3. Now we should convert this general project into eclipse project.So right click on project ->properties->ProjectFacets. click on ConverttoFacetedform

Step4. Now if your project is a web project.See the left side window.. there is an option DynamicwebModule ... check it (leave it if it's not a webproject).... On the rightside window .. go to runtimes tab. Now check the server and JDK version both.. apply Ok.

Step5. If it's a maven project .. then right click on project congigure->convert to maven project->Finish

回答6:

Steps:

1. Import project as a normal git project
2. Right click on the project and select Configure -> Convert to Faceted From
3. Now Select Faceted whichever you want to choose for simple java project just select Java from the Check box List
4. you can add more configurations based on your requirement under runtime tab on left and under "Further configuration available.." link below the pane. you can skip this step if no additional configuration required and you just need a simple java project.
5. click on apply and then apply and close.

It will convert your simple git project to simple java project of Eclipse.

-- Happy coding :)