使用Google Eclipse插件干扰Google Cloud Endpoints

I am experiencing a strange behavior while generating endpoints using the Google Appengine Eclipse plugin. I have an endpoint class with over 20 endpoint methods. When I first tried generating the endpoints for android I get the error

使用Google Appengine Eclipse插件生成端点时，我遇到了一种奇怪的行为。我有一个端点类，有超过20个端点方法。当我第一次尝试为android生成端点时，我得到了错误

 Generating Cloud Endpoint has encountered errors and is not complete

By way of troubleshooting, I comment out all the methods to find the culprits. What I found is a bit baffling. After uncommenting the 16th method, I get the error again. There are two methods that are interfering with each other! If I comment out one or the other the endpoint is generated fine. But if I have both uncommented, I get the error above.

通过故障排除，我注释掉所有找到罪魁祸首的方法。我发现有点莫名其妙。取消注释第16个方法后，我再次收到错误。有两种方法相互干扰！如果我注释掉一个或另一个端点生成正常。但如果我同时取消注释，我会得到上面的错误。

Does anyone know what may be causing this interference?

有谁知道可能导致这种干扰的原因是什么？

@ApiMethod(name = "getOrangers", httpMethod = HttpMethod.POST)
public FaceList getOrangers(UserRequest request) throws NotFoundException {
    FaceList list = new FaceList();
    return list;
}

@ApiMethod(name = "getMangoers", httpMethod = HttpMethod.POST)
public FaceList getMangoers(UserRequest request) throws NotFoundException {
    FaceList list = new FaceList();
    return list;
}

I have edited the methods down to their stubs as shown above and still get the same interference problem.

我已经将方法编辑到它们的存根，如上所示，仍然会遇到相同的干扰问题。

1 个解决方案

#1

Firstly, when you get an error with that annoying undescriptive message:

首先，当您收到有关令人讨厌的不良消息的错误时：

Generating Cloud Endpoint has encountered errors and is not complete

生成Cloud Endpoint遇到错误但未完成

you should check the Error Log under Window -> Show View -> Error Log to get more info.

你应该检查窗口 - >显示视图 - >错误日志下的错误日志以获取更多信息。

I did so, and I found that the actual exception is:

我这样做了，我发现实际的例外是：

java.lang.IllegalArgumentException: 
  Multiple methods with same rest path "POST facelist": "getOrangers" and "getMangoers"

So, the problem is that your 2 methods have the same path! Adding explicitly a path for your methods will solve the problem:

所以，问题是你的2种方法有相同的路径！明确添加方法的路径将解决问题：

@ApiMethod(name="getOrangers", path="get_oranges", httpMethod=HttpMethod.POST)
public FaceList getOrangers(UserRequest request) throws NotFoundException {
    //...
}

@ApiMethod(name="getMangoers", path="get_mangoers", httpMethod=HttpMethod.POST)
public FaceList getMangoers(UserRequest request) throws NotFoundException {
    //...
}

NOTE: As you didn't set paths for your methods, GPE is generating them automatically. It seems that GPE is generating the same path for the 2 methods, using to form the path the HTTP method (POST) and the returned value (facelist), which doesn't correspond with what is said in Google Cloud Endpoints Documentation:

注意：由于您没有为方法设置路径，因此GPE会自动生成它们。似乎GPE为这两种方法生成相同的路径，用于形成HTTP方法（POST）和返回值（facelist）的路径，这与Google Cloud Endpoints文档中的内容不一致：

"path: The URI path to use to access this method. If you don't set this, a default path is used based on the Java method name."

“path：用于访问此方法的URI路径。如果未设置此路径，则根据Java方法名称使用默认路径。”

It says that the path is automatically generated using the method name, and in that case you'd not getting any error, since your 2 methods have obviously different names. So I guess it must be a bug (as many others) in Endpoints.

它表示使用方法名称自动生成路径，在这种情况下，您不会收到任何错误，因为您的2种方法明显有不同的名称。所以我想它一定是端点中的一个bug（和许多其他人一样）。

#1