503服务不适用于Google端点

Question

我正在使用端点尝试为我的Web应用程序创建患者实体。 当我尝试运行API时，我不断收到以下错误代码。

    503 Service Unavailable

- Show headers -

    {
     "error": {
      "errors": [
   {
    "domain": "global",
    "reason": "backendError",
    "message": "java.lang.IllegalStateException: You have not started an Objectify context. You are probably missing the ObjectifyFilter. If you are not running in the context of an http request, see the ObjectifyService.run() method."
   }
  ],
  "code": 503,
  "message": "java.lang.IllegalStateException: You have not started an Objectify context. You are probably missing the ObjectifyFilter. If you are not running in the context of an http request, see the ObjectifyService.run() method."
 }
}

我知道这与static ofy文件有关，我不确定如何向其中添加过滤器。 这是我的静态对象化文件的代码。

import com.googlecode.objectify.Objectify;
import com.googlecode.objectify.ObjectifyService;


public class OfyService 
{
    public static Objectify ofy() 
    {
        return ObjectifyService.ofy();
    }
}

然后我通过在API类中使用此方法来调用ofy文件

ofy().save().entity(patient).now();

Answer 1

将此代码添加到您的web.xml

<filter>
    <filter-name>ObjectifyFilter</filter-name>
    <filter-class>com.googlecode.objectify.ObjectifyFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>ObjectifyFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>