首先要手动添加三个jar包 mail、activation、additionnal
需要翻墙下载链接：https://code.google.com/archive/p/javamail-android/downloads
百度云盘链接：https://pan.baidu.com/s/1vheC2JQKBfc35PXCb6OK_g
复制到libs目录下后对jar包点击右键 --> add as library ，如果没找到add as library但还是找不到类的话 点击file -> project structure -> app -> dependencies -> 右上角的+号 -> jar dependency 找到复制的三个jar包添加完成点击OK
java.lang.NoClassDefFoundError: javax.activation.DataHandler
错误原因是没有添加additionnal的jar包，因为activation和additionnal是配套使用的，在上面贴出来的Google下载链接也可以看到 （need additionnal.jar）
纯发送邮件请看大神博客：https://blog.csdn.net/xietansheng/article/details/51673073
如果不想看可以直接复制代码：https://github.com/jiaweizeng/JavaxMail（163发给QQ）修改为自己的邮箱和密码
注意事项：
1、是否开启SMTP服务，服务器地址
2、开启SMTP服务的话邮箱密码要填写邮箱授权码
3、发送邮件必须在子线程完成
4、网络权限，写到本地还要读写权限，6.0以上动态
5、关于只发一次，第二次就不发的问题（我也遇到，第二天回来上班就好了，只能帮你到这了，哈哈哈~）
1：可能是网络不好，邮件没发送出去，调整SystemClock.sleep睡眠时间
QQ邮箱，点击设置
163邮箱
发送crash邮件
传送门：https://github.com/jiaweizeng/CrashMail
初始化和权限的动态获取
package cn.hzjk.crashmail;
import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//在这里为应用设置异常处理程序，然后我们的程序才能捕获未处理的异常
CrashHandler crashHandler = CrashHandler.getInstance();
crashHandler.init(this);
Button btnCrash =findViewById(R.id.btn_crash);
btnCrash.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
checkStoragePermission();
}
});
}
private void checkStoragePermission() {
int result = ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE);
if (result == PackageManager.PERMISSION_DENIED) {
String[] permissions = {Manifest.permission.WRITE_EXTERNAL_STORAGE};
ActivityCompat.requestPermissions(this, permissions, 0xa0);
} else {
new ArrayList<>().get(9);
}
}
//权限申请回调
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode){
case 0xa0:
if (grantResults[0]==PackageManager.PERMISSION_DENIED){
Toast.makeText(this, "why ??????", Toast.LENGTH_SHORT).show();
return;
}
new ArrayList<>().get(9);
break;
}
}
}
EmailUtil
package cn.hzjk.crashmail;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;
/**
* Created by zjw on 2018/4/20.
*/
public class EmailUtil {
class MyAuthenticator extends javax.mail.Authenticator {
private String strUser;
private String strPwd;
public MyAuthenticator(String user, String password) {
this.strUser = user;
this.strPwd = password;
}
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(strUser, strPwd);
}
}
public void sendMail(String toMail, String fromMail, String server,
String username, String password, String title, String body,
String attachment) throws Exception {
Properties props = System.getProperties();// Get system properties
props.setProperty("mail.transport.protocol", "smtp"); // 使用的协议（JavaMail规范要求）
props.put("mail.smtp.host", server);// Setup mail server
props.put("mail.smtp.auth", "true");
MyAuthenticator myauth = new MyAuthenticator(username, password);// Get
// 发送邮件，和密码
Session session = Session.getDefaultInstance(props, myauth);
session.setDebug(true); // 设置为debug模式, 可以查看详细的发送 log
MimeMessage message = new MimeMessage(session); // Define message
message.setFrom(new InternetAddress(fromMail)); // Set the from address
// 接收邮箱
message.addRecipient(Message.RecipientType.TO, new InternetAddress(
toMail));// 目标邮箱
// address
message.setSubject(title);// Set the subject 标题
// message.setText(MimeUtility.encodeWord(body));// Set the content
MimeMultipart allMultipart = new MimeMultipart("mixed");
MimeBodyPart attachPart = new MimeBodyPart();
FileDataSource fds = new FileDataSource(attachment);
attachPart.setDataHandler(new DataHandler(fds));
attachPart.setFileName(MimeUtility.encodeWord(fds.getName()));
MimeBodyPart textBodyPart = new MimeBodyPart();
textBodyPart.setText(body);// 邮件内容
allMultipart.addBodyPart(attachPart);
allMultipart.addBodyPart(textBodyPart);
message.setContent(allMultipart);
message.saveChanges();
Transport.send(message);
}
/**
* 设置邮件信息
* toMail
* 接收邮箱
* account
* 发送者邮箱
* password
* 发送者邮箱密码
* server
* 发送者邮箱服务器
* @param title
* 邮件标题
* @param body
* 邮件内容
* @param path
* 附件路径
*/
public void sendMailS(final String body, final String path,final String title) {
new Thread(new Runnable() {
public void run() {
// EmailUtil emailUtil = new EmailUtil();
try {
String toMail = "@qq.com";
String account = "@163.com";
String password = "";
String server = "smtp.163.com";
// emailUtil.
sendMail(toMail, account, server, account, password, title,
body, path);
} catch (Exception e) {
e.printStackTrace();
}
}
}).start();
}
}
CrashHandler
package cn.hzjk.crashmail;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.os.Environment;
import android.os.Process;
import android.os.SystemClock;
import android.util.Log;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* Created by zjw on 2018/4/20.
*/
public class CrashHandler implements Thread.UncaughtExceptionHandler {
private static final String TAG = "CrashHandler";
private static final boolean DEBUG = true;
private static final String PATH = Environment.getExternalStorageDirectory().getPath() + "/Email_info/log/";
private static final String FILE_NAME = "log_";
private String filepath;
//log文件的后缀名
private static final String FILE_NAME_SUFFIX = ".txt";
private static CrashHandler sInstance = new CrashHandler();
//系统默认的异常处理（默认情况下，系统会终止当前的异常程序）
private Thread.UncaughtExceptionHandler mDefaultCrashHandler;
private Context mContext;
//构造方法私有，防止外部构造多个实例，即采用单例模式
private CrashHandler() {
}
public static CrashHandler getInstance() {
return sInstance;
}
//这里主要完成初始化工作
public void init(Context context) {
//获取系统默认的异常处理器
mDefaultCrashHandler = Thread.getDefaultUncaughtExceptionHandler();
//将当前实例设为系统默认的异常处理器
Thread.setDefaultUncaughtExceptionHandler(this);
//获取Context，方便内部使用
mContext = context.getApplicationContext();
}
/**
* 这个是最关键的函数，当程序中有未被捕获的异常，系统将会自动调用#uncaughtException方法
* thread为出现未捕获异常的线程，ex为未捕获的异常，有了这个ex，我们就可以得到异常信息。
*/
@Override
public void uncaughtException(Thread thread, Throwable ex) {
try {
//导出异常信息到SD卡中
dumpExceptionToSDCard(ex);
//这里可以通过网络上传异常信息到服务器，便于开发人员分析日志从而解决bug
uploadExceptionToServer();
SystemClock.sleep(1500);
} catch (IOException e) {
e.printStackTrace();
}
//打印出当前调用栈信息
ex.printStackTrace();
//如果系统提供了默认的异常处理器，则交给系统去结束我们的程序，否则就由我们自己结束自己
if (mDefaultCrashHandler != null) {
mDefaultCrashHandler.uncaughtException(thread, ex);
} else {
Process.killProcess(Process.myPid());
}
}
private void dumpExceptionToSDCard(Throwable ex) throws IOException {
//如果SD卡不存在或无法使用，则无法把异常信息写入SD卡
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
if (DEBUG) {
Log.w(TAG, "sdcard unmounted,skip dump exception");
return;
}
}
File dir = new File(PATH);
if (!dir.exists()) {
dir.mkdirs();
}
long current = System.currentTimeMillis();
String time = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date(current));
//以当前时间创建log文件
filepath = PATH + FILE_NAME+ current+ FILE_NAME_SUFFIX;
File file = new File(filepath);
Log.e(TAG, "fiel="+file);
try {
PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(file)));
//导出发生异常的时间
pw.println(time);
//导出手机信息
dumpPhoneInfo(pw);
pw.println();
//导出异常的调用栈信息
ex.printStackTrace(pw);
pw.close();
} catch (Exception e) {
Log.e(TAG, "dump crash info failed");
}
}
private void dumpPhoneInfo(PrintWriter pw) throws NameNotFoundException {
//应用的版本名称和版本号
PackageManager pm = mContext.getPackageManager();
PackageInfo pi = pm.getPackageInfo(mContext.getPackageName(), PackageManager.GET_ACTIVITIES);
pw.print("App Version: ");
pw.print(pi.versionName);
pw.print('_');
pw.println(pi.versionCode);
//android版本号
pw.print("OS Version: ");
pw.print(Build.VERSION.RELEASE);
pw.print("_");
pw.println(Build.VERSION.SDK_INT);
//手机制造商
pw.print("Vendor: ");
pw.println(Build.MANUFACTURER);
//手机型号
pw.print("Model: ");
pw.println(Build.MODEL);
//cpu架构
pw.print("CPU ABI: ");
pw.println(Build.CPU_ABI);
}
private void uploadExceptionToServer() {
//TODO Upload Exception Message To Your Web Server
EmailUtil emailUtil = new EmailUtil();
emailUtil.sendMailS(getbody(), filepath,getAppName()+"CrashReport");
Log.e(TAG, "sendemali");
}
public String getbody(){
StringBuffer sb=new StringBuffer();
try {
dumpPhoneInfo(sb);
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return sb.toString();
}
public void dumpPhoneInfo(StringBuffer pw) throws NameNotFoundException {
//应用的版本名称和版本号
PackageManager pm = mContext.getPackageManager();
PackageInfo pi = pm.getPackageInfo(mContext.getPackageName(), PackageManager.GET_ACTIVITIES);
pw.append("App Version: ");
pw.append(pi.versionName);
pw.append('_');
pw.append(pi.versionCode);
pw.append("\n");
//android版本号
pw.append("OS Version: ");
pw.append(Build.VERSION.RELEASE);
pw.append("_");
pw.append(Build.VERSION.SDK_INT);
pw.append("\n");
//手机制造商
pw.append("Vendor: ");
pw.append(Build.MANUFACTURER);
pw.append("\n");
//手机型号
pw.append("Model: ");
pw.append(Build.MODEL);
pw.append("\n");
//cpu架构
pw.append("CPU ABI: ");
pw.append(Build.CPU_ABI);
pw.append("\n");
}
/**
* 获取应用程序名称
*/
public String getAppName()
{
try
{
PackageManager packageManager = mContext.getPackageManager();
PackageInfo packageInfo = packageManager.getPackageInfo(
mContext.getPackageName(), 0);
int labelRes = packageInfo.applicationInfo.labelRes;
return mContext.getResources().getString(labelRes);
} catch (NameNotFoundException e)
{
e.printStackTrace();
}
return null;
}
}
不过我并不喜欢附件的形式，因为附件可能会有个有效期或者邮箱有容量的限制，超过期限或者容量可能就不能下载了，所以我要把全部报告都打印在邮件的正文里，修改了如下方法：
传送门：https://github.com/jiaweizeng/CrashDetailMail
public void dumpPhoneInfo(StringBuffer pw) throws NameNotFoundException {
//应用的版本名称和版本号
PackageManager pm = mContext.getPackageManager();
PackageInfo pi = pm.getPackageInfo(mContext.getPackageName(), PackageManager.GET_ACTIVITIES);
pw.append("App Version: ");
pw.append(pi.versionName);
pw.append('_');
pw.append(pi.versionCode);
pw.append("\n");
//android版本号
pw.append("OS Version: ");
pw.append(Build.VERSION.RELEASE);
pw.append("_");
pw.append(Build.VERSION.SDK_INT);
pw.append("\n");
//手机制造商
pw.append("Vendor: ");
pw.append(Build.MANUFACTURER);
pw.append("\n");
//手机型号
pw.append("Model: ");
pw.append(Build.MODEL);
pw.append("\n");
//cpu架构
pw.append("CPU ABI: ");
pw.append(Build.CPU_ABI);
pw.append("\n");
try {
BufferedReader br = new BufferedReader(new FileReader(new File(filepath)));
String line;
while ((line=br.readLine())!=null){
pw.append(line);
pw.append("\n");
}
br.close();
} catch (Exception e) {
e.printStackTrace();
}
}
最后结果如下：
https://blog.csdn.net/weixin_37165769/article/details/80052278
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