将新端点添加到Android Studio中现有的应用程序引擎后端服务器

Question

我在本地的Android Studio中有一个带有谷歌云消息设置的应用程序引擎后端。

它的原始端点如下：

• 消息传递终结点
• 注册终结点

我创建了一个新的Java文件，并添加了一个名为UserRegistration的新类，如下所示：

package com.xxxxx.gcmbackend;
import com.google.api.server.spi.config.Api;
import com.google.api.server.spi.config.ApiMethod;
import com.google.api.server.spi.config.ApiNamespace;
import com.google.api.server.spi.response.CollectionResponse;
import java.util.List;
import java.util.logging.Logger;
import javax.inject.Named;
import static com.xxxxxx.gcmbackend.OfyService.ofy;
@Api(
        name = "register",
        version = "v1",
        namespace = @ApiNamespace(
                ownerDomain = "gcmbackend.xxxxx.com",
                ownerName = "gcmbackend.xxxxx.com",
                packagePath=""
        )
)

public class UserRegistrationEndpoint {
    private static final Logger log = Logger.getLogger(RegistrationEndpoint.class.getName());
    @ApiMethod(name = "register")
    public void registerDevice(@Named("regId") String regId, @Named("username") String username, @Named("phone") String phone) {
        if(findRecord(regId) != null) {
            log.info("Device " + regId + " already registered, skipping register");
            return;
        }
        RegistrationRecord record = new RegistrationRecord();
        record.setRegId(regId);
        record.setUsername(username);
        record.setPhone(phone);
        ofy().save().entity(record).now();
    }
    private RegistrationRecord findRecord(String regId) {
        return ofy().load().type(RegistrationRecord.class).filter("regId", regId).first().now();
    }
}

然而，当部署时，我在API资源管理器中看不到这个端点。如何使用谷歌云消息将新的工作端点添加到应用程序引擎后端？

Answer 1

通过查看现有的代码结构，我发现每个新的API都必须添加到web.xml文件中。我将我的新端点添加为：

<?xml version="1.0" encoding="utf-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" version="2.5">
  <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>
   <servlet>
        <servlet-name>SystemServiceServlet</servlet-name>
        <servlet-class>com.google.api.server.spi.SystemServiceServlet</servlet-class>
        <init-param>
            <param-name>services</param-name>
            <param-value>com.xxxxx.gcmbackend.RegistrationEndpoint, com.xxxxx.gcmbackend.MessagingEndpoint, com.xxxxx.gcmbackend.UserRegistrationEndpoint</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>SystemServiceServlet</servlet-name>
        <url-pattern>/_ah/spi/*</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
</web-app>