AndroidからGAE(slim3)に登録されているデータを取得するサンプルを作成しました。

［開発環境］
　・Eclipse Indigo
　・Android 2.3.3
　・Slim3 Version 1.0.13 (検索結果はJSON形式でクライアントに返す)


［サーバ（GAE）側のソース(Slim3を使用)］


[src\jp\co\hoshisoft\slim3sample02\controller\ListController.java]

package jp.co.hoshisoft.slim3sample02.controller;
import java.io.IOException;

import java.io.OutputStreamWriter;

import java.io.PrintWriter;

import java.util.List;
import jp.co.hoshisoft.slim3sample02.meta.MemberMeta;

import jp.co.hoshisoft.slim3sample02.model.Member;

import jp.co.hoshisoft.slim3sample02.service.MemberService;
import org.slim3.controller.Controller;

import org.slim3.controller.Navigation;

import org.slim3.util.ThrowableUtil;
public class ListController extends Controller {

    

    private MemberService service = new MemberService();
    @Override

    public Navigation run() throws Exception {
        List members = service.allList();

        Object[] entityArray = members.toArray();

        String ret = MemberMeta.get().modelsToJson(entityArray);

        

        String encoding = request.getCharacterEncoding();

        if (encoding == null) {

            encoding = "UTF-8";

        }

        response.setContentType("application/json; charset=" + encoding);

        try {

            PrintWriter out = null;

            try {

                out = new PrintWriter(new OutputStreamWriter(response.getOutputStream(), encoding));

                out.print(ret);

            }

            finally {

                if (out != null) {

                    out.close();

                }

            }

        }

        catch (IOException e) {

            ThrowableUtil.wrapAndThrow(e);

        }
        return null;

    }

}

[src\jp\co\hoshisoft\slim3sample02\model\Member.java]

package jp.co.hoshisoft.slim3sample02.model;
import java.io.Serializable;
import com.google.appengine.api.datastore.Key;
import org.slim3.datastore.Attribute;

import org.slim3.datastore.Model;

import org.slim3.datastore.json.Json;
@Model(schemaVersion = 1)

public class Member implements Serializable {
    private static final long serialVersionUID = 1L;
    @Attribute(primaryKey = true, json=@Json(ignore=true))

    private Key key;
    @Attribute(version = true, json=@Json(ignore=true))

    private Long version;
    private String name;

    private String email;

    

    /**

     * Returns the key.

     *

     * @return the key

     */

    public Key getKey() {

        return key;

    }
    /**

     * Sets the key.

     *

     * @param key

     *            the key

     */

    public void setKey(Key key) {

        this.key = key;

    }
    /**

     * Returns the version.

     *

     * @return the version

     */

    public Long getVersion() {

        return version;

    }
    /**

     * Sets the version.

     *

     * @param version

     *            the version

     */

    public void setVersion(Long version) {

        this.version = version;

    }
    public String getName() {

        return name;

    }
    public void setName(String name) {

        this.name = name;

    }
    public String getEmail() {

        return email;

    }
    public void setEmail(String email) {

        this.email = email;

    }
    @Override

    public int hashCode() {

        final int prime = 31;

        int result = 1;

        result = prime * result + *1;

        return result;

    }
    @Override

    public boolean equals(Object obj) {

        if (this == obj) {

            return true;

        }

        if (obj == null) {

            return false;

        }

        if (getClass() != obj.getClass()) {

            return false;

        }

        Member other = (Member) obj;

        if (key == null) {

            if (other.key != null) {

                return false;

            }

        } else if (!key.equals(other.key)) {

            return false;

        }

        return true;

    }

}

[src\jp\co\hoshisoft\slim3sample02\service\MemberService.java]

package jp.co.hoshisoft.slim3sample02.service;
import java.util.List;

import java.util.Map;
import org.slim3.datastore.Datastore;

import org.slim3.util.BeanUtil;
import com.google.appengine.api.datastore.Transaction;
import jp.co.hoshisoft.slim3sample02.meta.MemberMeta;

import jp.co.hoshisoft.slim3sample02.model.Member;
public class MemberService {
    public Member insert(Map input) {

        Member member = new Member();

        BeanUtil.copy(input, member);

        Transaction tx = Datastore.beginTransaction();

        Datastore.put(member);

        Datastore.commit(tx);

        return member;

    }
    public List allList() {

        

        MemberMeta e = new MemberMeta();

        List list = Datastore.query(e)

            .sort(e.name.asc)

            .asList();
        return list;

    }

[war\WEB-INF\appengine-web.xml]

<?xml version="1.0" encoding="utf-8"?>

<appengine-web-app xmlns="http://appengine.google.com/ns/1.0">

    <application>アプリケーションＩＤ</application>

    <version>1</version>

    

    <precompilation-enabled>true</precompilation-enabled>

    

    <system-properties>

        <property name="slim3.hotReloading" value="true"/>

        <!--

        <property name="slim3.datastoreDeadline" value="8"/>

        <property name="slim3.uploadSizeMax" value="1000000"/>

        <property name="slim3.uploadFileSizeMax" value="100000"/>

        -->

        <property name="java.util.logging.config.file" value="WEB-INF/classes/logging.properties"/>

    </system-properties>

    <sessions-enabled>false</sessions-enabled>

    <threadsafe>true</threadsafe>

</appengine-web-app>

[war\WEB-INF\appengine-web.xml]

<?xml version="1.0" encoding="utf-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" version="2.5">

    <context-param>

        <param-name>slim3.rootPackage</param-name>

        <param-value>jp.co.hoshisoft.slim3sample02</param-value>

    </context-param>
　・

　・

　・

</web-app>

［クライアント（Android）側のソース］


[src\jp\co\hoshisoft\AndroidTest07Activity.java]

package jp.co.hoshisoft.androidtest07;
import java.io.IOException;
import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.HttpStatus;

import org.apache.http.ParseException;

import org.apache.http.client.ClientProtocolException;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.client.methods.HttpUriRequest;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.util.EntityUtils;

import org.json.JSONArray;

import org.json.JSONException;
import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.ListView;

import android.widget.TextView;
public class AndroidTest07Activity extends Activity {

    

    static final String uri = "http://XXXXXXXX.appspot.com/list";
    private TextView txt;

    private ListView list;

    

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

 

        this.txt = (TextView)findViewById(R.id.textView1);

        this.list = (ListView)findViewById(R.id.listView1);

        

        Button button1 = (Button) findViewById(R.id.button1);

        button1.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                

                HttpClient httpClient = new DefaultHttpClient();

                

                HttpUriRequest httpRequest = new HttpGet(uri);

                

                HttpResponse httpResponse = null;

                

                try {

                    httpResponse = httpClient.execute(httpRequest);

                }

                catch (ClientProtocolException e) {

                    //例外処理

                }

                catch (IOException e){

                    //例外処理

                }

                

                String json = null;

                

                if (httpResponse != null && httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK){

                    HttpEntity httpEntity = httpResponse.getEntity();

                    try {

                        json = EntityUtils.toString(httpEntity);

                    }

                    catch (ParseException e) {

                        //例外処理

                    }

                    catch (IOException e) {

                        //例外処理

                    }

                    finally {

                        try {

                            httpEntity.consumeContent();

                        }

                        catch (IOException e) {

                            //例外処理

                        }

                    }

                }

                

                httpClient.getConnectionManager().shutdown();

                

                AndroidTest07Activity.this.txt.setText(json);
                ArrayAdapter adapter = new ArrayAdapter(AndroidTest07Activity.this, android.R.layout.simple_list_item_1);

                try {

                    JSONArray items = new JSONArray(json);

                    for(int i = 0; i < items.length(); ++i) {

                        adapter.add(items.getJSONObject(i).getString("name") + ", " + items.getJSONObject(i).getString("email"));

                    }

                    AndroidTest07Activity.this.list.setAdapter(adapter);
                } catch (JSONException e) {

                    //例外処理

                } catch (ParseException e) {

                    //例外処理

                }

            }

        });

    }

}

[res\layout\main.xml]

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:weightSum="1" xmlns:android="http://schemas.android.com/apk/res/android">

    <Button android:text="一覧取得" android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>

    <TextView android:text="TextView" android:id="@+id/textView1" android:layout_height="wrap_content" android:layout_width="match_parent" android:layout_weight="0.35"></TextView>

    <ListView android:id="@+id/listView1" android:layout_width="match_parent" android:layout_height="196dp"></ListView>

</LinearLayout>

［実行時の画面］

*1:key == null) ? 0 : key.hashCode(