利用Android實現電子郵箱客戶端
阿新 • • 發佈：2018-12-14
本文主要講述了安卓平臺上利用QQ郵箱SMTP協議，POP3協議傳送與接收訊息的實現
傳送郵件核心程式碼
import java.security.Security;
import java.util.Date;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication - 1
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接收郵件核心程式碼
import java.io.UnsupportedEncodingException;
import java.security.*;
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeUtility;
/**
* 用於收取Gmail郵件
* @author Winter Lau
*/
public class GmailFetch {
public static void main(String argv[]) throws Exception {
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
// Get a Properties object
Properties props = System.getProperties();
props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);
props.setProperty("mail.pop3.socketFactory.fallback", "false");
props.setProperty("mail.pop3.port", "995");
props.setProperty("mail.pop3.socketFactory.port", "995");
//以下步驟跟一般的JavaMail操作相同
Session session = Session.getDefaultInstance(props,null);
//請將紅色部分對應替換成你的郵箱帳號和密碼
URLName urln = new URLName("pop3","pop.qq.com",995,null,
"[email protected]", "yourpassword");
Store store = session.getStore(urln);
Folder inbox = null;
try {
store.connect();
inbox = store.getFolder("INBOX");
inbox.open(Folder.READ_ONLY);
FetchProfile profile = new FetchProfile();
profile.add(FetchProfile.Item.ENVELOPE);
Message[] messages = inbox.getMessages();
inbox.fetch(messages, profile);
System.out.println("收件箱的郵件數：" + messages.length);
for (int i = 0; i < messages.length; i++) {
//郵件傳送者
String from = decodeText(messages[i].getFrom()[0].toString());
InternetAddress ia = new InternetAddress(from);
System.out.println("FROM:" + ia.getPersonal()+'('+ia.getAddress()+')');
//郵件標題
System.out.println("TITLE:" + messages[i].getSubject());
//郵件大小
System.out.println("SIZE:" + messages[i].getSize());
//郵件傳送時間
System.out.println("DATE:" + messages[i].getSentDate());
}
} finally {
try {
inbox.close(false);
} catch (Exception e) {}
try {
store.close();
} catch (Exception e) {}
}
}
protected static String decodeText(String text)
throws UnsupportedEncodingException {
if (text == null)
return null;
if (text.startsWith("=?GB") || text.startsWith("=?gb"))
text = MimeUtility.decodeText(text);
else
text = new String(text.getBytes("ISO8859_1"));
return text;
}
} - 1
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注意，接收郵件使用java客戶端時可以正常得到資料，在使用安卓的時候，就會卡在store.connect(),原因不詳，無法解決
問題已解決，安卓似乎強行並不允許連線網路的操作在主執行緒中，將store.connnect()放到子執行緒中即可，不然會卡住
注意，發郵件時，要匯入activation.jar,不然的話會報java.lang.noClassDefFoundError:javax.activation.DataHandler
最後完成版本
主介面
package com.zj.myemail;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.net.Uri;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.BaseExpandableListAdapter;
import android.widget.EditText;
import android.widget.ExpandableListView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.ExpandableListView.OnGroupClickListener;
public class MainActivity extends Activity {
private ExpandableListView expendView;
private int []group_click=new int[5];
private long mExitTime=0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
final MyExpendAdapter adapter=new MyExpendAdapter();
expendView=(ExpandableListView) findViewById(R.id.list);
expendView.setGroupIndicator(null); //設定預設圖示不顯示
expendView.setAdapter(adapter);
//一級點選事件
expendView.setOnGroupClickListener(new OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
group_click[groupPosition]+=1;
adapter.notifyDataSetChanged();
return false;
}
});
//二級點選事件
expendView.setOnChildClickListener(new OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
//可在這裡做點選事件
if(groupPosition==0&&childPosition==1){
/*AlertDialog.Builder builder=new Builder(MainActivity.this);
builder.setTitle("新增聯絡人");
View view=getLayoutInflater().inflate(R.layout.email_add_address, null);
final EditText name=(EditText) view.findViewById(R.id.name);
final EditText addr=(EditText) view.findViewById(R.id.address);
builder.setView(view);
builder.setPositiveButton("確定", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
insertAddress(name.getText().toString().trim(),addr.getText().toString().trim());
}
});
builder.setNegativeButton("取消", null);
builder.show();*/
}else if(groupPosition==0&&childPosition==0){
//Intent intent=new Intent(MainActivity.this, MailConstactsActivity.class);
//startActivity(intent);
}else if(groupPosition==1&&childPosition==0){
Intent intent=new Intent(MainActivity.this, MailEditActivity.class);
startActivity(intent);
}else if(groupPosition==1&&childPosition==1){
//Intent intent=new Intent(MainActivity.this, MailCaogaoxiangActivity.class);
//startActivity(intent);
}else if(groupPosition==2&&childPosition==0){
Intent intent=new Intent(MainActivity.this, MailBoxActivity.class);
intent.putExtra("TYPE", "INBOX");
intent.putExtra("status", 0);//全部
startActivity(intent);
}else if(groupPosition==2&&childPosition==1){
//Intent intent=new Intent(MainActivity.this, MailBoxActivity.class);
//intent.putExtra("TYPE", "INBOX");
//intent.putExtra("status", 1);//未讀
//startActivity(intent);
}else if(groupPosition==2&&childPosition==2){
//Intent intent=new Intent(MainActivity.this, MailBoxActivity.class);
//intent.putExtra("TYPE", "INBOX");
//intent.putExtra("status", 2);//已讀
//startActivity(intent);
}
adapter.notifyDataSetChanged();
return false;
}
});
}
/**
* 新增聯絡人
*/
/*private void insertAddress(String user,String address){
if(user==null){
Toast.makeText(HomeActivity.this, "使用者名稱不能為空", Toast.LENGTH_SHORT).show();
}else{
if(!EmailFormatUtil.emailFormat(address)){
Toast.makeText(HomeActivity.this, "郵箱格式不正確", Toast.LENGTH_SHORT).show();
}else{
Uri uri=Uri.parse("content://com.emailconstantprovider");
ContentValues values=new ContentValues();
values.put("mailfrom", MyApplication.info.getUserName());
values.put("name", user);
values.put("address", address);
getContentResolver().insert(uri, values);
Toast.makeText(HomeActivity.this, "新增資料成功", Toast.LENGTH_SHORT).show();
}
}
}*/
/**
* 介面卡
* @author Administrator
*
*/
private class MyExpendAdapter extends BaseExpandableListAdapter{
/**
* pic state
*/
//int []group_state=new int[]{R.drawable.group_right,R.drawable.group_down};
/**
* group title
*/
String []group_title=new String[]{"聯絡人","寫郵件","收件箱"};
/**
* child text
*/
String [][] child_text=new String [][]{
{"聯絡人列表","新增聯絡人"},
{"新郵件","草稿箱"},
{"全部郵件","未讀郵件","已讀郵件"},};
int [][] child_icons=new int[][]{
{R.drawable.listlianxiren,R.drawable.tianjia},
{R.drawable.xieyoujian,R.drawable.caogaoxiang},
{R.drawable.all,R.drawable.notread,R.drawable.hasread},
};
/**
* 獲取一級標籤中二級標籤的內容
*/
@Override
public Object getChild(int groupPosition, int childPosition) {
return child_text[groupPosition][childPosition];
}
/**
* 獲取二級標籤ID
*/
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
/**
* 對一級標籤下的二級標籤進行設定
*/
@SuppressLint("SimpleDateFormat")
@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
convertView=getLayoutInflater().inflate(R.layout.email_child, null);
TextView tv=(TextView) convertView.findViewById(R.id.tv);
tv.setText(child_text[groupPosition][childPosition]);
ImageView iv=(ImageView) convertView.findViewById(R.id.child_icon);
iv.setImageResource(child_icons[groupPosition][childPosition]);
return convertView;
}
/**
* 一級標籤下二級標籤的數量
*/
@Override
public int getChildrenCount(int groupPosition) {
return child_text[groupPosition].length;
}
/**
* 獲取一級標籤內容
*/
@Override
public Object getGroup(int groupPosition) {
return group_title[groupPosition];
}
/**
* 一級標籤總數
*/
@Override
public int getGroupCount() {
return group_title.length;
}
/**
* 一級標籤ID
*/
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
/**
* 對一級標籤進行設定
*/
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
convertView=getLayoutInflater().inflate(R.layout.email_group, null);
ImageView icon=(ImageView) convertView.findViewById(R.id.icon);
ImageView iv=(ImageView) convertView.findViewById(R.id.iv);
TextView tv=(TextView) convertView.findViewById(R.id.iv_title);
iv.setImageResource(R.drawable.group_right);
tv.setText(group_title[groupPosition]);
if(groupPosition==0){
icon.setImageResource(R.drawable.constants);
}else if(groupPosition==1){
icon.setImageResource(R.drawable.mailto);
}else if(groupPosition==2){
icon.setImageResource(R.drawable.mailbox);
}
if(group_click[groupPosition]%2==0){
iv.setImageResource(R.drawable.group_right);
}else{
iv.setImageResource(R.drawable.group_down);
}
return convertView;
}
/**
* 指定位置相應的組檢視
*/
@Override
public boolean hasStableIds() {
return true;
}
/**
* 當選擇子節點的時候，呼叫該方法
*/
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
/**
* 返回退出系統
*/
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode==KeyEvent.KEYCODE_BACK){
if((System.currentTimeMillis()-mExitTime)<2000){
android.os.Process.killProcess(android.os.Process.myPid());
}else{
Toast.makeText(MainActivity.this, "再按一次退出程式", Toast.LENGTH_SHORT).show();
mExitTime=System.currentTimeMillis();
}
return true;
}
return super.onKeyDown(keyCode, event);
}
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收件箱
package com.zj.myemail;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.BaseAdapter;
import android.widget.DialerFilter;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.lang.ref.WeakReference;
import java.security.Security;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import javax.mail.FetchProfile;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.URLName;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeUtility;
public class MailBoxActivity extends Activity {
private ArrayList<Email> mailslist = new ArrayList<Email>();
private ArrayList<ArrayList<InputStream>> attachmentsInputStreamsList = new ArrayList<ArrayList<InputStream>>();
private String type;
private int status;
private MyAdapter myAdapter;
private ListView lv_box;
//private List<MailReceiver> mailReceivers;
private ProgressDialog dialog;
private List<String> messageids;
private Handler handler=new Handler(){
public void handleMessage(android.os.Message msg) {
dialog.dismiss();
myAdapter = new MyAdapter();
lv_box.setAdapter(myAdapter);
};
};
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.email_mailbox);
initView();
}
private void initView() {
lv_box = (ListView) findViewById(R.id.lv_box);
dialog=new ProgressDialog(this);
dialog.setMessage("正載入");
dialog.show();
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
// Get a Properties object
Properties props = System.getProperties();
props.setProperty("mail.pop3.socketFactory.class", SSL_FACTORY);
props.setProperty("mail.pop3.socketFactory.fallback", "false");
props.setProperty("mail.pop3.port", "995");
props.setProperty("mail.pop3.socketFactory.port", "995");
//以下步驟跟一般的JavaMail操作相同
final Session session = Session.getDefaultInstance(props,null);
//請將紅色部分對應替換成你的郵箱帳號和密碼
final URLName urln = new URLName("pop3","pop.qq.com",995,null,
"[email protected]", "yourpassword");
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
Store store=null;
Folder inbox = null;
try {
store = session.getStore(urln);
Log.i("test","here1");
store.connect();
Log.i("test","here2");
inbox = store.getFolder("INBOX");
inbox.open(Folder.READ_ONLY);
FetchProfile profile = new FetchProfile();
profile.add(FetchProfile.Item.ENVELOPE);
Message[] messages = inbox.getMessages();
inbox.fetch(messages, profile);
Log.i("test",messages.length+"");
System.out.println("收件箱的郵件數：" + messages.length);
for (int i = 0; i < messages.length; i++) {
//郵件傳送者
String from = decodeText(messages[i].getFrom()[0].toString());
InternetAddress ia = new InternetAddress(from);
System.out.println("FROM:" + ia.getPersonal()+'('+ia.getAddress()+')');
//郵件標題
System.out.println("TITLE:" + messages[i].getSubject());
//郵件大小
System.out.println("SIZE:" + messages[i].getSize());
//郵件傳送時間
System.out.println("DATE:" + messages[i].getSentDate());
Email email=new Email();
email.setFrom(ia.getPersonal()+'('+ia.getAddress()+')');
email.setSubject( messages[i].getSubject());
email.setSentdata(messages[i].getSentDate()+"");
mailslist.add(email);
}
handler.sendEmptyMessage(0);
} catch(Exception e)
{
}
finally {
try {
inbox.close(false);
} catch (Exception e) {}
try {
store.close();
} catch (Exception e) {}
}
}
}).start();
}
protected static String decodeText(String text)
throws UnsupportedEncodingException {
if (text == null)
return null;
if (text.startsWith("=?GB") || text.startsWith("=?gb"))
text = MimeUtility.decodeText(text);
else
text = new String(text.getBytes("ISO8859_1"));
return text;
}
/**
* 介面卡
* @author Administrator
*
*/
private class MyAdapter extends BaseAdapter {
@Override
public int getCount() {
return mailslist.size();
}
@Override
public Object getItem(int position) {
return mailslist.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
convertView = LayoutInflater.from(MailBoxActivity.this).inflate(R.layout.email_mailbox_item, null);
TextView tv_from = (TextView) convertView.findViewById(R.id.tv_from);
tv_from.setText(mailslist.get(position).getFrom());
TextView tv_sentdate = (TextView) convertView.findViewById(R.id.tv_sentdate);
tv_sentdate.setText(mailslist.get(position).getSentdata());
TextView tv_subject = (TextView) convertView.findViewById(R.id.tv_subject);
tv_subject.setText(mailslist.get(position).getSubject());
return convertView;
}
}
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傳送郵件
package com.zj.myemail;
import java.security.Security;
import java.util.Date;
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.view.KeyEvent;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.Toast;
public class MailEditActivi