java - Android ReSTLet 包裹崩溃

Question

我使用的是 Android 1.6 和 ReSTLet android 版本 2.0.7...

它在wrap()上崩溃:

ClientResource cr = new ClientResource("http://myapp.appspot.com/restlet/");
IRestletResource r = cr.wrap(IRestletResource.class);
MyData[] ss = r.getDatas();

这么说

05-10 20:40:56.272: ERROR/AndroidRuntime(435): java.lang.RuntimeException: Unable to start activity ComponentInfo{se.myapp.android/se.myapp.android.MyAppAndroid}: java.lang.NoSuchMethodException
...
05-10 20:40:56.272: ERROR/AndroidRuntime(435): Caused by: java.lang.NoSuchMethodException
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at java.lang.Class.getDeclaredMethods(Native Method)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at java.lang.ClassCache.getDeclaredPublicMethods(ClassCache.java:166)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at java.lang.ClassCache.getDeclaredMethods(ClassCache.java:179)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at java.lang.ClassCache.findAllMethods(ClassCache.java:249)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at java.lang.ClassCache.getFullListOfMethods(ClassCache.java:223)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at java.lang.ClassCache.getAllPublicMethods(ClassCache.java:204)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at java.lang.Class.getMethods(Class.java:1038)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at org.restlet.engine.resource.AnnotationUtils.addAnnotations(AnnotationUtils.java:131)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at org.restlet.engine.resource.AnnotationUtils.getAnnotations(AnnotationUtils.java:231)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at org.restlet.resource.ClientResource.wrap(ClientResource.java:1541)
05-10 20:40:56.272: ERROR/AndroidRuntime(435):     at se.myapp.android.MyAppAndroid.onCreate(MyAppAndroid.java:61)
...

界面看起来像

public interface IRestletResource 
{
    @Get
    public MyData[] getDatas();
}

服务器端 ReSTLetResource 如下所示:

public class RestletResource extends ServerResource implements IRestletResource
{
    MyData[] m_Datas;

    @Override  
    protected void doInit() throws ResourceException 
    {   
        m_Datas = new MyData("carl",32);
    }   

    @Get
    public MyData[] getDatas()
    {
        return m_Datas; //return new myData("..",1); still crashes.
    }
}

MyData 看起来像这样:

public class MyData implements Serializable
{
    private static final long serialVersionUID = 1L;

    private String  m_Name;
    private int     m_Age;

    public MyData()
    {

    }

    public MyData(String n, int a)
    {
        m_Name = n;
        m_Age = a;
    }
    //...
}

现在。如果我更改资源以返回字符串而不是 MyData[]，它不会崩溃。如果我返回一个 MyData 实例而不是一个数组，它仍然会崩溃。

Answer 1

原来你需要

Engine.getInstance().getRegisteredConverters().add(new JacksonConverter());

在客户端，以及

getConnectorService().getClientProtocols().add(Protocol.FILE);

在服务器端的应用程序中..