我正在使用的:Eclipse, Java, Objectify, Google App Engine SDK
如果这个问题已经解决了,我很抱歉。但我找不到任何解决办法。情况如下:我花了大约3周的时间来完成我的项目。起初,我有一个Android项目。然后,使用Google Eclipse Plugin,我生成了一个App Engine Backend(在Eclipse上),并开始使用JPA。然而,我在人际关系方面有太多的问题。我只是失去了时间和耐心。所以,我决定把它物化。
我按照Objectify文档的所有步骤构建我的类。我定义了端点,用一个新端点替换以前的代码(使用JPA的代码)。objectify和guava jar都位于WEB-INF/lib中,并且位于构建路径中。
问题:当我尝试生成云端点客户端库时,我得到了这个错误:
为云端点类生成API元数据时出现问题:
com.google.appengine.repackaged.com.google.api.client.http.HttpResponseException:
400 Bad Request
{"error": {"message": "Bad Request", "code": 400, "errors": [{"message": "api exception", "debug_info": "Variable does not conform to style guide"}]}}
错误日志:java.lang.reflect.InvocationTargetException
at com.google.gdt.eclipse.appengine.swarm.wizards.GenerateSwarmApiAction$1.run(GenerateSwarmApiAction.java:82)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmGenerationException: com.google.appengine.repackaged.com.google.api.client.http.HttpResponseException: 400 Bad Request
{"error": {"message": "Bad Request", "code": 400, "errors": [{"message": "api exception", "debug_info": "Variable does not conform to style guide"}]}}
at com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmApiCreator.createClientLibFromApiConfig(SwarmApiCreator.java:144)
at com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmApiCreator.createSwarmApi(SwarmApiCreator.java:258)
at com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmServiceCreator.create(SwarmServiceCreator.java:444)
at com.google.gdt.eclipse.appengine.swarm.wizards.GenerateSwarmApiAction$1.run(GenerateSwarmApiAction.java:80)
... 1 more
Caused by: com.google.appengine.repackaged.com.google.api.client.http.HttpResponseException: 400 Bad Request
{"error": {"message": "Bad Request", "code": 400, "errors": [{"message": "api exception", "debug_info": "Variable does not conform to style guide"}]}}
at com.google.appengine.repackaged.com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1054)
at com.google.api.server.spi.tools.CloudClientLibGenerator.postRequest(CloudClientLibGenerator.java:53)
at com.google.api.server.spi.tools.CloudClientLibGenerator.generateClientLib(CloudClientLibGenerator.java:44)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmApiCreator.createClientLibFromApiConfig(SwarmApiCreator.java:142)
... 4 more
Root exception:
com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmGenerationException: com.google.appengine.repackaged.com.google.api.client.http.HttpResponseException: 400 Bad Request
{"error": {"message": "Bad Request", "code": 400, "errors": [{"message": "api exception", "debug_info": "Variable does not conform to style guide"}]}}
at com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmApiCreator.createClientLibFromApiConfig(SwarmApiCreator.java:144)
at com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmApiCreator.createSwarmApi(SwarmApiCreator.java:258)
at com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmServiceCreator.create(SwarmServiceCreator.java:444)
at com.google.gdt.eclipse.appengine.swarm.wizards.GenerateSwarmApiAction$1.run(GenerateSwarmApiAction.java:80)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: com.google.appengine.repackaged.com.google.api.client.http.HttpResponseException: 400 Bad Request
{"error": {"message": "Bad Request", "code": 400, "errors": [{"message": "api exception", "debug_info": "Variable does not conform to style guide"}]}}
at com.google.appengine.repackaged.com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1054)
at com.google.api.server.spi.tools.CloudClientLibGenerator.postRequest(CloudClientLibGenerator.java:53)
at com.google.api.server.spi.tools.CloudClientLibGenerator.generateClientLib(CloudClientLibGenerator.java:44)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.google.gdt.eclipse.appengine.swarm.wizards.helpers.SwarmApiCreator.createClientLibFromApiConfig(SwarmApiCreator.java:142)
... 4 more
一些例子(包括实体注册)。我将禁用包、导入和getter/setter。如果有人知道怎么帮忙,我将非常感激。如果有什么代码需要我写在这里,请告诉我。
User.java
@Entity
public class User {
@Id
private Long id;
private String name;
@Index
private PhoneNumber phoneNumber;
private String friendCode;
@Load
private List<Ref<Group>> groups = new ArrayList<Ref<Group>>(); //groups that a User can be simple member
//...
}
Group.java
@Entity
public class Group {
@Id
private Long id;
@Index(IfNotNull.class)
private String name;
@Load
@Index
private Ref<User> owner; // Owner of the group. The creator.
OfyService.java
import com.googlecode.objectify.Objectify;
import com.googlecode.objectify.ObjectifyFactory;
import com.googlecode.objectify.ObjectifyService;
public class OfyService {
static {
factory().register(Group.class);
factory().register(User.class);
}
public static Objectify ofy() {
return ObjectifyService.ofy();
}
public static ObjectifyFactory factory() {
return ObjectifyService.factory();
}
}
UserEndpoint.java
import static com.uandq.lychee.OfyService.ofy;
@Api(name = "sampleEndpoint", namespace = @ApiNamespace(ownerDomain = "sample.com", ownerName = "sample.com", packagePath = ""))
public class UserEndpoint {
@ApiMethod(name = "listUser")
public List<User> listUser() {
List<User> result = new ArrayList<User>();
result = ofy().load().type(User.class).list();
return result;
}
@ApiMethod(name = "getUser")
public User getUser(@Named Long id) {
User user = ofy().load().type(User.class).id(id).now();
return user;
}
@ApiMethod(name = "insertUser")
public User insertUser(User user) {
ofy().save().entity(user).now();
return user;
}
@ApiMethod(name = "removeUser")
public void removeUser(@Named Long id) {
ofy().delete().type(User.class).id(id).now();
}
@ApiMethod(name = "findUserByPhoneNumber")
public User findUserByPhoneNumber(PhoneNumber phone) {
User user = ofy().load().type(User.class)
.filter("phoneNumber ==", phone).first().now();
return user;
}
}
GroupEndpoint.java
import static com.uandq.lychee.OfyService.ofy;
@Api(name = "sampleEndpoint", namespace = @ApiNamespace(ownerDomain = "sample.com", ownerName = "sample.com", packagePath = ""))
public class GroupEndpoint {
@ApiMethod(name = "listGroup")
public List<Group> listGroup() {
List<Group> result = new ArrayList<Group>();
result = ofy().load().type(Group.class).list();
return result;
}
@ApiMethod(name = "getGroup")
public Group getGroup(@Named Long id) {
Group group = ofy().load().type(Group.class).id(id).now();
return group;
}
@ApiMethod(name = "insertGroup")
public Group insertGroup(Group group) {
ofy().save().entity(group).now();
return group;
}
@ApiMethod(name = "removeGroup")
public void removeGroup(@Named Long id) {
ofy().delete().type(Group.class).id(id).now();
}
}
web . xml
<?xml version="1.0" encoding="utf-8" standalone="no"?><web-app version="2.5">
<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.sample.GroupEndpoint, com.sample.UserEndpoint</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>SystemServiceServlet</servlet-name>
<url-pattern>/_ah/spi/*</url-pattern>
</servlet-mapping>
<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>
</web-app>
此外,我现在尝试按照以下步骤生成端点库:使用endpoint .sh为Android生成客户端库通过终端。但效果并不好。我仍然得到:
Error: 400 Bad Request
{"error": {"message": "Bad Request", "code": 400, "errors": [{"message": "api exception", "debug_info": "Variable does not conform to style guide"}]}}
欢迎任何帮助。这个问题也发布在:https://groups.google.com/forum/?hl=en-GB#!主题/objectify-appengine/981 f4llxscg
问题已经解决了。
解决方案:https://groups.google.com/forum/?hl=en-GB !主题/objectify-appengine/981 f4llxscg
我发现问题了。实际上,我一直在关注这个链接https://cloud.google.com/developers/articles/google-cloud-endpoints-for-android上的所有内容。然后是:
大多数参数类型必须是可序列化的,因为JSON要求这样做对象是可序列化的。您也可以使用任何JavaBean,其中包括你的模型中的任何东西,因为你的模型对象应该符合上面描述的JavaBean标准。有限的集合类型不必是可序列化的,但必须用@Named注释。这些类型是:String, int/Integer, boolean/boolean, long/long。
在我的端点中,一些参数以错误的方式使用了@Named注释:没有参数的实际名称。我甚至不需要实现Serializable。我只是替换了:
public User getUser(@Named Long id)
public User getUser(@Named("id") Long id)
和所有其他的@Named参数。现在我可以生成端点库了。