Question

这是我的代码：

package com.example.toggleDemo;

import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import org.odata4j.consumer.ODataConsumer;
import org.odata4j.core.OEntity;
import org.odata4j.jersey.consumer.ODataJerseyConsumer;
import java.util.List;
import java.util.ArrayList;

public class MainActivity  extends ListActivity {
    @Override
    public void  onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setListAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, GetExpenseReports()));
        getListView().setTextFilterEnabled(true);
    }

    ArrayList<String> GetExpenseReports()
    {
        ArrayList<String> listUI = new ArrayList<String>();
        ODataConsumer c = ODataJerseyConsumer.create("http://services.odata.org/Northwind/Northwind.svc/");
        List<OEntity> listCategories= (List<OEntity>) c.getEntities("Categories");
        for(OEntity category : listCategories) {
            listUI.add(String.format("%s-%s", category.getProperty("CategoryID").getValue().toString(), category.getProperty("CategoryName").getValue().toString()));
        }
        return  listUI;
    }
}

在模拟器中运行时，出现错误： 08-28 17：30：05.793：ERROR / AndroidRuntime（781）：致命异常：主要 java.lang.NoClassDefFoundError：javax.ws.rs.ext.RuntimeDelegate 在org.odata4j.jersey.consumer.ODataJerseyConsumer。（ODataJerseyConsumer.java:22）在org.odata4j.jersey.consumer.ODataJerseyConsumer。（ODataJerseyConsumer.java:14）在org.odata4j.jersey.consumer.ODataJerseyConsumer $ Builder.build（ODataJerseyConsumer.java:93）在org.odata4j.jersey.consumer.ODataJerseyConsumer.create（ODataJerseyConsumer.java:115）在com.example.toggleDemo.MainActivity.GetExpenseReports（MainActivity.java:38）在com.example.toggleDemo.MainActivity.onCreate（MainActivity.java:22）在android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1047）在android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2627）在android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2679）在android.app.ActivityThread.access $ 2300（ActivityThread.java:125）在android.app.ActivityThread $ H.handleMessage（ActivityThread.java:2033）在android.os.Handler.dispatchMessage（Handler.java:99）在android.os.Looper.loop（Looper.java:123）在android.app.ActivityThread.main（ActivityThread.java:4627） at java.lang.reflect.Method.invokeNative（Native Method）在java.lang.reflect.Method.invoke（Method.java:521）在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:868）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:626）在dalvik.system.NativeStart.main（本地方法）

提前致谢！

Answer 1

试试这个它对我有用 ArrayList listUI = new ArrayList（）; ODataConsumer c = ODataJerseyConsumer.create（＆＃34; http://services.odata.org/Northwind/Northwind.svc/＆＃34;）; OQueryRequest catagories = c.getEntities（＆＃34; Categories＆＃34;）;

    Enumerable<OEntity> enumCatagory = catagories.execute();
    OEntity category = enumCatagory.first();
    System.out.println(enumCatagory.count());
    String str = String.format("%s-%s", category.getProperty("CategoryID").getValue().toString(), category.getProperty("CategoryName").getValue().toString());
    System.out.println(str);

我正在使用OData4j for Android，我无法获得实体

1 个答案: