【发布时间】：2012-01-23 14:03:57
【问题描述】：
我有同样的问题：http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2838513
我尝试使用 GAE 和 android 之间的通信制作一个非常简单的应用程序，我也面临同样的问题。
我有 2.1 Snapshot (2012-01-15) android 版本 我有 2.1 Snapshot (2012-01-15) gae 版本
在android的classPath中我有：
- org.restlet.ext.jackson
- org.restlet
- 杰克逊-all.1.9.3
我的 GAE 应用程序有一个共享源文件夹，用于共享资源和 bean
在 GAE 的 classPath 中，我有： * org.restlet.ext.jackson * org.restlet.ext.json * org.restlet.ext.servlet * org.restlet * 杰克逊-all.1.9.3
这是我的 web.xml：
<servlet-name>RestletServlet</servlet-name>
<servlet-class>org.restlet.ext.servlet.ServerServlet</servlet-class>
<init-param>
<param-name>org.restlet.application</param-name>
<param-value>com.binomed.server.rest.RestletApplication</param-value>
</init-param>
</servlet>
<!-- Catch all requests -->
<servlet-mapping>
<servlet-name>RestletServlet</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
这里是共享代码：
package com.binomed.client.rest;
import org.restlet.resource.Get;
import com.binomed.client.rest.dto.RestletObjectA;
public interface IRestletService {
@Get
RestletObjectA getMessage() throws Exception;
}
package com.binomed.client.rest.dto;
import java.io.Serializable;
import java.util.List;
public class RestletObjectA implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
public RestletObjectA() {
super();
}
private RestletObjectB objectB;
private List listObjectB;
private String name;
public RestletObjectB getObjectB() {
return objectB;
}
public void setObjectB(RestletObjectB objectB) {
this.objectB = objectB;
}
public List getListObjectB() {
return listObjectB;
}
public void setListObjectB(List listObjectB) {
this.listObjectB = listObjectB;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
package com.binomed.client.rest.dto;
import java.io.Serializable;
public class RestletObjectB implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
public RestletObjectB() {
super();
}
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
这是我的服务的实现：
package com.binomed.server.rest;
import java.util.ArrayList;
import org.restlet.resource.Get;
import org.restlet.resource.ServerResource;
import com.binomed.client.rest.IRestletService;
import com.binomed.client.rest.dto.RestletObjectA;
import com.binomed.client.rest.dto.RestletObjectB;
public class RestResource extends ServerResource implements IRestletService {
@Override
@Get
public RestletObjectA getMessage() throws Exception {
RestletObjectB objB = new RestletObjectB();
objB.setName("ObjectB");
RestletObjectA result = new RestletObjectA();
result.setName("ObjectA");
result.setListObjectB(new ArrayList());
result.getListObjectB().add(objB);
result.setObjectB(objB);
return result;
}
}
和
package com.binomed.server.rest;
import org.restlet.Application;
import org.restlet.Restlet;
import org.restlet.routing.Router;
public class RestletApplication extends Application {
/**
* Creates a root Restlet that will receive all incoming calls.
*/
@Override
public Restlet createInboundRoot() {
// Create a router Restlet that routes each call to a
// new instance of HelloWorldResource.
Router router = new Router(getContext());
// Defines only one route
// router.attachDefault(new Directory(getContext(), "war:///"));
// router.attach("/test/", RestResource.class);
router.attachDefault(RestResource.class);
return router;
}
}
如果我尝试使用 url：http://localhost:8888/rest/ 它可以工作，我有 {"objectB":{"name":"ObjectB"},"listObjectB":[{"name":"ObjectB"}],"name":"ObjectA"} 作为返回，这是完全正常的。
这是我的安卓代码：
// Use an AsyncTask to avoid blocking the UI thread
new AsyncTask() {
@Override
protected RestletObjectA doInBackground(Void... arg0) {
try {
return RestletAccesClass.callService();
} catch (Exception e) {
Log.e(TAG, "Error during calling rest server", e);
return null;
}
}
@Override
protected void onPostExecute(RestletObjectA result) {
if (result != null) {
restlet.setText(result.getName() + ", B : " + result.getObjectB().getName());
} else {
restlet.setText("Failure during getting result");
}
btnRestlet.setEnabled(true);
}
}.execute();
and :
public static RestletObjectA callService() throws Exception {
ClientResource clientResource = new ClientResource(TestRpcAndroidActivity.LOCALHOST + "/rest/");
IRestletService service = clientResource.wrap(IRestletService.class);
RestletObjectA result = service.getMessage();
return result;
}
使用android项目我总是有以下错误：
01-23 14:09:12.594: E/TestAndroidActivity(1620): 调用休息服务器时出错 01-23 14:09:12.594: E/TestAndroidActivity(1620): 通信错误 (1001) - 连接器未能完成与服务器的通信 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 org.restlet.resource.ClientResource.doError(ClientResource.java:579) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 org.restlet.engine.resource.ClientInvocationHandler.invoke(ClientInvocationHandler.java:233) 01-23 14:09:12.594: E/TestAndroidActivity(1620): at $Proxy5.getMessage(Native Method) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 com.binomed.android.rpc.rest.RestletAccesClass.callService(RestletAccesClass.java:14) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 com.binomed.android.rpc.TestRpcAndroidActivity$3.doInBackground(TestRpcAndroidActivity.java:153) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 com.binomed.android.rpc.TestRpcAndroidActivity$3.doInBackground(TestRpcAndroidActivity.java:1) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 android.os.AsyncTask$2.call(AsyncTask.java:185) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 java.util.concurrent.FutureTask.run(FutureTask.java:137) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561) 01-23 14:09:12.594: E/TestAndroidActivity(1620): 在 java.lang.Thread.run(Thread.java:1096)你知道如何解决这个问题吗？
问候
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标签： android google-app-engine restlet