我是android编程新手，我想检索Gmail收件箱。在浏览了许多页面后，我对如何检索它有了一些想法，编译时没有错误，但在通过模拟器执行时，突然应用程序关闭说。不幸的是，“App_name”已经停止。
我在这里粘贴我的代码，请让我知道问题出在哪里。
inbox.java 我想在其中获取我的收件箱。
import javax.mail.MessagingException;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.widget.TextView;
public class Inbox extends Activity {
EmailManager emailManager;
private String stmpHost = "smtp.gmail.com";
private String mailServer = "imap.gmail.com";
public String urlServer = "gmail.com";
public String username = "your username";
public String password = "your password";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_inbox);
emailManager=new EmailManager(username, password, urlServer, stmpHost, mailServer);
try {
emailManager.getInboxMails();
emailManager.close();
} catch (MessagingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Intent intent = getIntent();
String message = intent.getStringExtra(DatabaseConnector.EXTRA_MESSAGE);
// Create the text view
TextView textView = new TextView(this);
textView.setTextSize(40);
textView.setText(message);
// Set the text view as the activity layout
setContentView(textView);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_inbox, menu);
return true;
}
}
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.Store;
//import javax.mail.Transport;
//import javax.mail.internet.InternetAddress;
//import javax.mail.internet.MimeMessage;
//
//import android.location.Address;
import android.util.Log;
//import android.widget.Toast;
public class EmailManager {
private String stmpHost = "smtp.gmail.com";
private String mailServer = "imap.gmail.com";
private EmailAccount account;
private Session smtpSession;
private Session imapSession;
private Folder inbox,sentMail;
private Store store,sentstore;
boolean isSet;
public EmailManager(String username, String password, String urlServer, String stmpHost, String mailServer) {
account = new EmailAccount(username, password, urlServer);
this.stmpHost = stmpHost;
this.mailServer = mailServer;
initProtocol();
}
private void initProtocol() {
EmailAuthenticator authenticator = new EmailAuthenticator(account);
Properties props1 = new Properties();
props1.setProperty("mail.transport.protocol", "smtps");
props1.setProperty("mail.host", stmpHost);
props1.put("mail.smtp.auth", "true");
props1.put("mail.smtp.port", "465");
props1.put("mail.smtp.socketFactory.port", "465");
props1.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props1.put("mail.smtp.socketFactory.fallback", "false");
props1.setProperty("mail.smtp.quitwait", "false");
smtpSession = Session.getDefaultInstance(props1, authenticator);
Properties props2 = new Properties();
props2.setProperty("mail.store.protocol", "imaps");
props2.setProperty("mail.imaps.host", mailServer);
props2.setProperty("mail.imaps.port", "993");
props2.setProperty("mail.imaps.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props2.setProperty("mail.imaps.socketFactory.fallback", "false");
imapSession = Session.getInstance(props2);
}
public void getInboxMails() throws MessagingException {
store = imapSession.getStore("imaps");
store.connect(mailServer, account.username, account.password);
inbox = store.getFolder("Inbox");
inbox.open(Folder.READ_ONLY);
Message[] messages = inbox.getMessages();
// List<Address>addresses=new ArrayList<Address>();
for (int i = messages.length - 1; i >= 0; i--)
{
Part p = messages[i];
try {
String subject = messages[i].getSubject();
Log.v("subject","subject="+subject);
String body=getText(p);
Log.v("body","body="+body);
javax.mail.Address[] address=messages[i].getFrom();
String add=address.toString().trim();
Log.v("address","address="+add);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return ;
}
private boolean textIsHtml = false;
/**
* Return the primary text content of the message.
*/
private String getText(Part p) throws
MessagingException, IOException {
if (p.isMimeType("text/*")) {
String s = (String)p.getContent();
textIsHtml = p.isMimeType("text/html");
return s;
}
if (p.isMimeType("multipart/alternative")) {
// prefer html text over plain text
Multipart mp = (Multipart)p.getContent();
String text = null;
for (int i = 0; i < mp.getCount(); i++) {
Part bp = mp.getBodyPart(i);
if (bp.isMimeType("text/plain")) {
if (text == null)
text = getText(bp);
continue;
} else if (bp.isMimeType("text/html")) {
String s = getText(bp);
if (s != null)
return s;
} else {
return getText(bp);
}
}
return text;
} else if (p.isMimeType("multipart/*")) {
Multipart mp = (Multipart)p.getContent();
for (int i = 0; i < mp.getCount(); i++) {
String s = getText(mp.getBodyPart(i));
if (s != null)
return s;
}
}
return null;
}
public void close() {
//Close connection
try {
// inbox.close(false);
// store.close();
sentMail.close(false);
sentstore.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
package com.example.lomenttech;
import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;
public class EmailAuthenticator extends Authenticator {
private EmailAccount account;
public EmailAuthenticator(EmailAccount account) {
super();
this.account = account;
}
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(account.emailAddress, account.password);
}
}
package com.example.lomenttech;
public class EmailAccount {
public String urlServer = "gmail.com";
public String username = "meenashah.np";
public String password = "your password";
public String emailAddress;
public EmailAccount(String username, String password, String urlServer) {
this.username = username;
this.password = password;
this.urlServer = urlServer;
this.emailAddress = username + "@" + urlServer;
}
}
package com.example.lomenttech;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import javax.sql.DataSource;
public class ByteArrayDataSource implements DataSource {
private byte[] data;
private String type;
public ByteArrayDataSource(byte[] data, String type) {
super();
this.data = data;
this.type = type;
}
public ByteArrayDataSource(byte[] data) {
super();
this.data = data;
}
public void setType(String type) {
this.type = type;
}
public String getContentType() {
if (type == null)
return "application/octet-stream";
else
return type;
}
public InputStream getInputStream() throws IOException {
return new ByteArrayInputStream(data);
}
public String getName() {
return "ByteArrayDataSource";
}
public OutputStream getOutputStream() throws IOException {
throw new IOException("Not Supported");
}
@Override
public PrintWriter getLogWriter() throws SQLException {
// TODO Auto-generated method stub
return null;
}
@Override
public int getLoginTimeout() throws SQLException {
// TODO Auto-generated method stub
return 0;
}
@Override
public void setLogWriter(PrintWriter arg0) throws SQLException {
// TODO Auto-generated method stub
}
@Override
public void setLoginTimeout(int arg0) throws SQLException {
// TODO Auto-generated method stub
}
@Override
public boolean isWrapperFor(Class<?> arg0) throws SQLException {
// TODO Auto-generated method stub
return false;
}
@Override
public <T> T unwrap(Class<T> arg0) throws SQLException {
// TODO Auto-generated method stub
return null;
}
@Override
public Connection getConnection() throws SQLException {
// TODO Auto-generated method stub
return null;
}
@Override
public Connection getConnection(String arg0, String arg1)
throws SQLException {
// TODO Auto-generated method stub
return null;
}
}
These are the logcat errors:
01-22 19:54:23.027: E/AndroidRuntime(849): FATAL EXCEPTION: main
01-22 19:54:23.027: E/AndroidRuntime(849): java.lang.NoClassDefFoundError: javax.mail.Session
01-22 19:54:23.027: E/AndroidRuntime(849): at com.example.lomenttech.EmailManager.getInboxMails(EmailManager.java:73)
01-22 19:54:23.027: E/AndroidRuntime(849): at com.example.lomenttech.Inbox.onCreate(Inbox.java:37)
01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.Activity.performCreate(Activity.java:5104)
01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread.access$600(ActivityThread.java:141)
01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
01-22 19:54:23.027: E/AndroidRuntime(849): at android.os.Handler.dispatchMessage(Handler.java:99)
01-22 19:54:23.027: E/AndroidRuntime(849): at android.os.Looper.loop(Looper.java:137)
01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread.main(ActivityThread.java:5039)
01-22 19:54:23.027: E/AndroidRuntime(849): at java.lang.reflect.Method.invokeNative(Native Method)
01-22 19:54:23.027: E/AndroidRuntime(849): at java.lang.reflect.Method.invoke(Method.java:511)
01-22 19:54:23.027: E/AndroidRuntime(849): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
01-22 19:54:23.027: E/AndroidRuntime(849): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
01-22 19:54:23.027: E/AndroidRuntime(849): at dalvik.system.NativeStart.main(Native Method)