Android上的Exchange Web服務錯誤

Question

我正在嘗試在Android上實現和使用Exchange Web服務。 我找到了這篇文章，並通過安裝Microsoft的EWS API JAVA進行了相同的操作：

http://stackoverflow.com/questions/7476055/use-exchange-web-services-on-android

我編寫並執行了一個發送消息的簡單示例。 但是我得到了這個錯誤：

java.lang.VerifyError: microsoft.exchange.webservices.data.ExchangeServiceBase

有人可以幫我嗎？ 有人可以分享任何樣品嗎？ 謝謝！

這是示例：

    package com.example.ewsandroid;
import java.net.URI;
import java.util.Locale;
import microsoft.exchange.webservices.data.EmailMessage;
import microsoft.exchange.webservices.data.ExchangeService;
import microsoft.exchange.webservices.data.MessageBody;
import microsoft.exchange.webservices.data.WebCredentials;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);    

        final Button mButton = (Button) findViewById(R.id.button);

        mButton.setOnClickListener(new Button.OnClickListener() {
            public void onClick(View v) {
                Locale.setDefault(Locale.ENGLISH);
                try {
                    ExchangeService service = new ExchangeService();
                    WebCredentials webCredentials = new WebCredentials(
                            "sample@gmail.com",
                            "sample");
                    URI url = new URI("https://sample.sample.com/ews/Exchange.asmx");
                    service.setCredentials(webCredentials);
                    service.setUrl(url);

                    EmailMessage msg= new EmailMessage(service);
                    msg.setSubject("Hello world!");
                    msg.setBody(MessageBody.getMessageBodyFromText
                               ("Sent using the EWS Managed API."));
                    msg.getToRecipients().add("sample@gmail.com");
                    msg.send();

                } catch (Exception ex) {
                    System.out.println(ex.toString());
                }
            }
        });
    }   
}

我正在使用Android 2.2作為平台，Java Compiler 1.6

Answer 1

JWebServices提供了一個用於Java和android的商業ActiveSync庫。 在該頁面中下載JWebServices for Exchange。 下載后，只需將jwebservices-1.1.jar jar文件添加到您的項目中，您只需在用您的代碼創建Service對象時提供信息即可，如下所示。 它在我的Android應用程序中有效。

Service service = new Service( "https://mail.yourdomain.com/ews/Exchange.asmx", "emailid@yourdomain.com", "password");

這是示例代碼，用於顯示當前時間和接下來的12小時之間的約會。

Service service = new Service(
                    "https://mail.yourdomain.com/ews/Exchange.asmx",
                    "emailid@yourdomain.com", "password");
            Date startDate = new Date(System.currentTimeMillis());
            Date endDate = new Date(System.currentTimeMillis()
                    + (12 * 60 * 60 * 1000));

            CharSequence startTime = DateFormat.format(
                    "yyyy-MM-dd HH:mm:ss", startDate);

            CharSequence endTime = DateFormat.format("yyyy-MM-dd HH:mm:ss",
                    endDate);

            IsGreaterThanOrEqualTo restriction1 = new IsGreaterThanOrEqualTo(
                    AppointmentPropertyPath.START_TIME,
                    startTime.toString());
            IsLessThanOrEqualTo restriction2 = new IsLessThanOrEqualTo(
                    AppointmentPropertyPath.END_TIME, endTime.toString());
            And restriction3 = new And(restriction1, restriction2);

            FindItemResponse response = service.findItem(
                    StandardFolder.CALENDAR,
                    AppointmentPropertyPath.getAllPropertyPaths(),
                    restriction3);
            int numberOfItems = response.getItems().size();
            if (numberOfItems <= 0)
                Log.v(">>><<<<", "There are no Appointments..");
            for (int i = 0; i < numberOfItems; i++) {
                if (response.getItems().get(i) instanceof Appointment) {
                    Appointment appointment = (Appointment) response
                            .getItems().get(i);
                    String logicalRoomName = null, location = appointment
                            .getLocation();
                    Log.v(">>><<<<", "Location = " + location);
                    Log.v(">>><<<<",
                            "Subject = " + appointment.getSubject());
                    Log.v(">>><<<<",
                            "StartTime = " + appointment.getStartTime());
                    Log.v(">>><<<<",
                            "EndTime = " + appointment.getEndTime());
                    Log.v(">>><<<<",
                            "Body Preview = "
                                    + appointment.getBodyPlainText()); } }