从另一个GWT引用GWT项目 - 问题 [英] Referencing a GWT project from another GWT one - Problems

问题描述

我已经在使用一个开源的GWT项目（iServe），并且我想将它融入到另一个开源GWT项目（PetalsBPM）中，我的意思是可以调用它并引用它的方法。

我已经在Eclipse中引入了iServe（它有多个模块）作为单独的Maven项目引用其他项目，并可以通过Runas - > Web应用程序在开发模式下成功运行它。

如果我这样做，并通过控制台运行另一个项目为mvn gwt：run，我通过iServe调用启动PetalsMBP。但是，这意味着这两个程序必须按原样运行，而无需相互通信。

我还将第二个项目作为一个java项目成功导入eclipse（转换成Maven一个导致问题 - 各种生命周期配置），但是每当我尝试添加通过属性iServe - > Java构建路径 - >项目，虽然它不会立即导致任何错误，我不能启动iServe了。它产生以下错误：

执行命令行时发生异常
无法运行程序C：\Program Files\Java\ jre7\bin\javaw.exe（目录C：... iserve-sal-gwt-1.0.0-SNAPSHOT）：CreateProcess error = 206，文件名或扩展名太长我的问题是否与PetalsBPM不是Eclipse中的Maven项目有关（我怀疑）吗？
我做错了，即这不是从另一个引用项目的方式？我应该添加对第一个项目（iServe）gwt.xml文件的引用吗？
有没有办法做我想要的，而不必将第二个项目作为jar并从iServe调用？我不愿意，因为每当我做一个微小的变化生产一个罐子不是完全有效率！

P.S：第二个项目是具有入口点的常规GWT项目，而不仅仅是一个模块。我应该删除这个吗？

---

更新：试图找出错误的根源，我试图简化问题，所以我执行了以下动作：

1. 我创建了两个新的简单GWT项目，并尝试引用一个
   从另一个。工作得很好


2. 我引用了我实际想要
   的项目，使用（PetalsBPM）从我刚刚创建的简单的。我也从原来的一个I
   想要使用的（iServe）引用了一个新的简单项目。也可以正常工作。


3. 尝试做我实际上
   想做的事情，复制2和3的设置。生成相同的错误
   CreateProcess error = 206，文件名或扩展名太长如果
   我引用PetalsBPM（当我从引用的
   项目中删除它时不会）

所以，我尝试了切换工作区。我在C：\中创建了一个新工作区，并将实际项目移动到那里。仍然没有工作。 （

任何更多的想法？

解决方案

然后，我在google-groups中找到了一个解决方案/解释，解决了我的问题
我发布了一个错误创建进程，错误= 206，路径太长等
这个网站（StackOverflow）真的帮​​助了我一千次
感谢大家！ em> 解决方案/解释 ：
（来自Stephen Johnson的回复）

...）如果你使用eclipse插件去Project | Properties，选择
Google \ App Engine \ ORM，并且只包含你想要增强的
类的目录，默认情况下整个项目
，以便包含大量不必要的文件。（...）

链接 ：
原始帖子@ google-groups

I am already using an open source GWT project (iServe) and I would like to integrate into it another open source GWT project (PetalsBPM), by which I mean being able to call it and reference its methods.

I have imported iServe in Eclipse (it has multiple modules) as separate Maven projects referencing its other and can run it successfully through Runas -> Web application in development mode.

If I do that and run the other project through the console as mvn gwt:run, I call initiate PetalsMBP through iServe. However, that means that the two programs have to run as is, without communication with each other.

I have also imported the second project into eclipse as a java project successfully (converting into a Maven one causes problems - various lifecycle configurations ones), but whenever I try to add to to iServe through Properties -> Java Build Path -> Projects, although it does not cause any errors immediately, I cannot launch iServe anymore. It produces the following error:

"Exception occurred executing command line. Cannot run program "C:\Program Files\Java\jre7\bin\javaw.exe" (in directory "C:...iserve-sal-gwt-1.0.0-SNAPSHOT"): CreateProcess error=206, The filename or extension is too long"

Are my problems related to the fact that PetalsBPM is not a Maven project in Eclipse (I doubt it)? Am I doing something wrong, i.e., this is not the way to reference a project from another one? should I add a reference to the first project's (iServe) gwt.xml file? Is there a way to do what I want without having to wrap the second project as a jar and calling it from iServe? I would prefer not to, since producing a jar every time I make a slight change is not exactly efficient!

P.S: The second project is a regular GWT project with an entrypoint, not just a module. Should I remove this?

---

UPDATE: Trying to figure out the source of this error, I attempted to simplify the problem, so I performed the following moves:

1. I created two new simple GWT projects and tried to reference one from the other. Worked fine
2. I referenced the project I actually want to use (PetalsBPM) from the simple one I just created. Also works fine.
3. I referenced the new simple project from the original one I want to use (iServe). Also works fine.
4. Tried doing what I actually want to do, copying the settings from 2&3. Produces the same error "CreateProcess error=206, The filename or extension is too long" if I reference PetalsBPM (does not when I remove it from the referenced projects)

So, I tried switching workspaces. I created a new workspace in C:\, and moved the actual projects there. Still it did not work. :(

Any more ideas?

解决方案

I met the same type of error "Create Process, error=206, path too long etc." a hundred times. Then, I found a solution/explanation in google-groups, it solved my problem. I post the content and link as it might help others. This website (StackOverflow) really helped me a thousand times. Thanks to you all !

solution/explanation : (Response from Stephen Johnson)

(...) if you're using eclipse plugin go to Project | Properties, choose Google \ App Engine \ ORM and only include directories that you have classes that you want enhanced. By default it does the entire project so that includes a lot of needless files. (...)

Link : original post @ google-groups

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