Android程序崩溃异常收集框架

最近在写Android程序崩溃异常处理，完成之后，稍加封装与大家分享。

我的思路是这样的，在程序崩溃之后，将异常信息保存到一个日志文件中，然后对该文件进行处理，比如发送到邮箱，或发送到服务器。

所以，第一步是先定义一个接口，用于在保存好日志之后的回调。代码如下：

/** @(#)CrashListener.java             Project: crash* Date:2014-5-27** Copyright (c) 2014 CFuture09, Institute of Software, * Guangdong Ocean University, Zhanjiang, GuangDong, China.* All rights reserved.** Licensed under the Apache License, Version 2.0 (the "License");*  you may not use this file except in compliance with the License.* You may obtain a copy of the License at**     http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.githang.android.crash;import java.io.File;/*** @author Geek_Soledad <a target="_blank" href=*         "http://mail.qq.com/cgi-bin/qm_share?t=qm_mailme&email=XTAuOSVzPDM5LzI0OR0sLHM_MjA"*         style="text-decoration:none;"><img src=*         "http://rescdn.qqmail.com/zh_CN/htmledition/images/function/qm_open/ico_mailme_01.png"*         /></a>*/
public interface CrashListener {/*** 保存异常的日志。* * @param file*/public void afterSaveCrash(File file);
}

接下来是用于处理崩溃异常的类，它要实现UncaughtExceptionHandler接口。实现它之后，将它设为默认的线程异常的处理者，这样程序崩溃之后，就会调用它了。但是在调用它之前，还需要先获取保存之前默认的handler，用于在我们收集了异常之后对程序进行处理，比如默认的弹出“程序已停止运行”的对话框（当然你也可以自己实现一个），终止程序，打印LOG。

我的实现如下：

/** @(#)CrashHandler.java              Project: crash* Date:2014-5-26** Copyright (c) 2014 CFuture09, Institute of Software, * Guangdong Ocean University, Zhanjiang, GuangDong, China.* All rights reserved.** Licensed under the Apache License, Version 2.0 (the "License");*  you may not use this file except in compliance with the License.* You may obtain a copy of the License at**     http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.githang.android.crash;import java.io.File;
import java.lang.Thread.UncaughtExceptionHandler;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;/*** @author Geek_Soledad <a target="_blank" href=*         "http://mail.qq.com/cgi-bin/qm_share?t=qm_mailme&email=XTAuOSVzPDM5LzI0OR0sLHM_MjA"*         style="text-decoration:none;"><img src=*         "http://rescdn.qqmail.com/zh_CN/htmledition/images/function/qm_open/ico_mailme_01.png"*         /></a>*/
public class CrashHandler implements UncaughtExceptionHandler {private static final CrashHandler sHandler = new CrashHandler();private static final UncaughtExceptionHandler sDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();private static final ExecutorService THREAD_POOL = Executors.newSingleThreadExecutor();private Future<?> future;private CrashListener mListener;private File mLogFile;public static CrashHandler getInstance() {return sHandler;}@Overridepublic void uncaughtException(Thread thread, Throwable ex) {CrashLogUtil.writeLog(mLogFile, "CrashHandler", ex.getMessage(), ex);future = THREAD_POOL.submit(new Runnable() {public void run() {if (mListener != null) {mListener.afterSaveCrash(mLogFile);}};});if (!future.isDone()) {try {future.get();} catch (Exception e) {e.printStackTrace();}}sDefaultHandler.uncaughtException(thread, ex);}public void init(File logFile, CrashListener listener) {mLogFile = logFile;mListener = listener;}}

这个类很简单，就是在发生未能捕获的异常之后，保存LOG到文件，然后调用前面定义的接口，对日志文件进行处理。其中CrashLogUtil是我实现的保存LOG到文件的类。代码如下：

/** @(#)LogUtil.java               Project: crash* Date:2014-5-27** Copyright (c) 2014 CFuture09, Institute of Software, * Guangdong Ocean University, Zhanjiang, GuangDong, China.* All rights reserved.** Licensed under the Apache License, Version 2.0 (the "License");*  you may not use this file except in compliance with the License.* You may obtain a copy of the License at**     http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.githang.android.crash;import java.io.BufferedWriter;
import java.io.Closeable;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Locale;/*** @author Geek_Soledad <a target="_blank" href=*         "http://mail.qq.com/cgi-bin/qm_share?t=qm_mailme&email=XTAuOSVzPDM5LzI0OR0sLHM_MjA"*         style="text-decoration:none;"><img src=*         "http://rescdn.qqmail.com/zh_CN/htmledition/images/function/qm_open/ico_mailme_01.png"*         /></a>*/
public class CrashLogUtil {private static final SimpleDateFormat timeFormat = new SimpleDateFormat("MM-dd HH:mm:ss.SSS",Locale.getDefault());/*** 将日志写入文件。* * @param tag* @param message* @param tr*/public static synchronized void writeLog(File logFile, String tag, String message, Throwable tr) {logFile.getParentFile().mkdirs();if (!logFile.exists()) {try {logFile.createNewFile();} catch (IOException e) {e.printStackTrace();}}String time = timeFormat.format(Calendar.getInstance().getTime());synchronized (logFile) {FileWriter fileWriter = null;BufferedWriter bufdWriter = null;PrintWriter printWriter = null;try {fileWriter = new FileWriter(logFile, true);bufdWriter = new BufferedWriter(fileWriter);printWriter = new PrintWriter(fileWriter);bufdWriter.append(time).append(" ").append("E").append('/').append(tag).append(" ").append(message).append('\n');bufdWriter.flush();tr.printStackTrace(printWriter);printWriter.flush();fileWriter.flush();} catch (IOException e) {closeQuietly(fileWriter);closeQuietly(bufdWriter);closeQuietly(printWriter);}}}public static void closeQuietly(Closeable closeable) {if (closeable != null) {try {closeable.close();} catch (IOException ioe) {// ignore}}}
}

在日志保存之后，我们还需要生成一个报告，并发送给服务器。报告的方法，可以是发送到邮箱，或者http请求发送给服务器。所以这里写了一个抽象类，实现了生成标题和内容，设置日志路径等。代码如下：

/** @(#)AbstractReportHandler.java             Project: crash* Date:2014-5-27** Copyright (c) 2014 CFuture09, Institute of Software, * Guangdong Ocean University, Zhanjiang, GuangDong, China.* All rights reserved.** Licensed under the Apache License, Version 2.0 (the "License");*  you may not use this file except in compliance with the License.* You may obtain a copy of the License at**     http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.githang.android.crash;import java.io.File;import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Build;/*** @author Geek_Soledad <a target="_blank" href=*         "http://mail.qq.com/cgi-bin/qm_share?t=qm_mailme&email=XTAuOSVzPDM5LzI0OR0sLHM_MjA"*         style="text-decoration:none;"><img src=*         "http://rescdn.qqmail.com/zh_CN/htmledition/images/function/qm_open/ico_mailme_01.png"*         /></a>*/
public abstract class AbstractCrashReportHandler implements CrashListener {private Context mContext;public AbstractCrashReportHandler(Context context) {mContext = context;CrashHandler handler = CrashHandler.getInstance();handler.init(getLogDir(context), this);Thread.setDefaultUncaughtExceptionHandler(handler);}protected File getLogDir(Context context) {return new File(context.getFilesDir(), "crash.log");}protected abstract void sendReport(String title, String body, File file);@Overridepublic void afterSaveCrash(File file) {sendReport(buildTitle(mContext), buildBody(mContext), file);}public String buildTitle(Context context) {return "Crash Log: "+ context.getPackageManager().getApplicationLabel(context.getApplicationInfo());}public String buildBody(Context context) {StringBuilder sb = new StringBuilder();sb.append("APPLICATION INFORMATION").append('\n');PackageManager pm = context.getPackageManager();ApplicationInfo ai = context.getApplicationInfo();sb.append("Application : ").append(pm.getApplicationLabel(ai)).append('\n');try {PackageInfo pi = pm.getPackageInfo(ai.packageName, 0);sb.append("Version Code: ").append(pi.versionCode).append('\n');sb.append("Version Name: ").append(pi.versionName).append('\n');} catch (PackageManager.NameNotFoundException e) {e.printStackTrace();}sb.append('\n').append("DEVICE INFORMATION").append('\n');sb.append("Board: ").append(Build.BOARD).append('\n');sb.append("BOOTLOADER: ").append(Build.BOOTLOADER).append('\n');sb.append("BRAND: ").append(Build.BRAND).append('\n');sb.append("CPU_ABI: ").append(Build.CPU_ABI).append('\n');sb.append("CPU_ABI2: ").append(Build.CPU_ABI2).append('\n');sb.append("DEVICE: ").append(Build.DEVICE).append('\n');sb.append("DISPLAY: ").append(Build.DISPLAY).append('\n');sb.append("FINGERPRINT: ").append(Build.FINGERPRINT).append('\n');sb.append("HARDWARE: ").append(Build.HARDWARE).append('\n');sb.append("HOST: ").append(Build.HOST).append('\n');sb.append("ID: ").append(Build.ID).append('\n');sb.append("MANUFACTURER: ").append(Build.MANUFACTURER).append('\n');sb.append("PRODUCT: ").append(Build.PRODUCT).append('\n');sb.append("TAGS: ").append(Build.TAGS).append('\n');sb.append("TYPE: ").append(Build.TYPE).append('\n');sb.append("USER: ").append(Build.USER).append('\n');return sb.toString();}
}

这样一个框架就算基本完成了。

当然，下面我还给出了报告的一种实现，发送邮件。

如何发送邮箱，网上已有不少资料，这里不再简而言之。

首先需要用到三个jar包： activation.jar, additionnal.jar, mail.jar。

然后写一个类，继承自Authenticator。代码如下：

/** @(#)Snippet.java               Project: CrashHandler* Date: 2014-5-27** Copyright (c) 2014 CFuture09, Institute of Software, * Guangdong Ocean University, Zhanjiang, GuangDong, China.* All rights reserved.** Licensed under the Apache License, Version 2.0 (the "License");*  you may not use this file except in compliance with the License.* You may obtain a copy of the License at**     http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.githang.android.crash;import android.util.Log;import java.util.Date;
import java.util.Properties;import javax.activation.CommandMap;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.activation.MailcapCommandMap;
import javax.mail.Authenticator;
import javax.mail.BodyPart;
import javax.mail.MessagingException;
import javax.mail.Multipart;
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;/*** Author: msdx (645079761@qq.com) Time: 14-5-27 上午9:07*/
public class LogMail extends Authenticator {private String host;private String port;private String user;private String pass;private String from;private String to;private String subject;private String body;private Multipart multipart;private Properties props;public LogMail() {}public LogMail(String user, String pass, String from, String to, String host, String port,String subject, String body) {this.host = host;this.port = port;this.user = user;this.pass = pass;this.from = from;this.to = to;this.subject = subject;this.body = body;}public LogMail setHost(String host) {this.host = host;return this;}public LogMail setPort(String port) {this.port = port;return this;}public LogMail setUser(String user) {this.user = user;return this;}public LogMail setPass(String pass) {this.pass = pass;return this;}public LogMail setFrom(String from) {this.from = from;return this;}public LogMail setTo(String to) {this.to = to;return this;}public LogMail setSubject(String subject) {this.subject = subject;return this;}public LogMail setBody(String body) {this.body = body;return this;}public void init() {multipart = new MimeMultipart();// There is something wrong with MailCap, javamail can not find a// handler for the multipart/mixed part, so this bit needs to be added.MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap();mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");CommandMap.setDefaultCommandMap(mc);props = new Properties();props.put("mail.smtp.host", host);props.put("mail.smtp.auth", "true");props.put("mail.smtp.port", port);props.put("mail.smtp.socketFactory.port", port);props.put("mail.transport.protocol", "smtp");props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");props.put("mail.smtp.socketFactory.fallback", "false");}public boolean send() throws MessagingException {if (!user.equals("") && !pass.equals("") && !to.equals("") && !from.equals("")) {Session session = Session.getDefaultInstance(props, this);Log.d("SendUtil", host + "..." + port + ".." + user + "..." + pass);MimeMessage msg = new MimeMessage(session);msg.setFrom(new InternetAddress(from));InternetAddress addressTo = new InternetAddress(to);msg.setRecipient(MimeMessage.RecipientType.TO, addressTo);msg.setSubject(subject);msg.setSentDate(new Date());// setup message bodyBodyPart messageBodyPart = new MimeBodyPart();messageBodyPart.setText(body);multipart.addBodyPart(messageBodyPart);// Put parts in messagemsg.setContent(multipart);// send emailTransport.send(msg);return true;} else {return false;}}public void addAttachment(String filePath, String fileName) throws Exception {BodyPart messageBodyPart = new MimeBodyPart();DataSource source = new FileDataSource(filePath);messageBodyPart.setDataHandler(new DataHandler(source));messageBodyPart.setFileName(fileName);multipart.addBodyPart(messageBodyPart);}@Overridepublic PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(user, pass);}
}

然后是发送报告邮件的类了，它继承自前面所写的AbstractCrashReportHandler，实现如下：

/** @(#)CrashEmailReport.java              Project: CrashHandler* Date: 2014-5-27** Copyright (c) 2014 CFuture09, Institute of Software, * Guangdong Ocean University, Zhanjiang, GuangDong, China.* All rights reserved.** Licensed under the Apache License, Version 2.0 (the "License");*  you may not use this file except in compliance with the License.* You may obtain a copy of the License at**     http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/
package com.githang.android.crash;import java.io.File;import android.content.Context;/*** @author Geek_Soledad <a target="_blank" href=*         "http://mail.qq.com/cgi-bin/qm_share?t=qm_mailme&email=XTAuOSVzPDM5LzI0OR0sLHM_MjA"*         style="text-decoration:none;"><img src=*         "http://rescdn.qqmail.com/zh_CN/htmledition/images/function/qm_open/ico_mailme_01.png"*         /></a>*/
public class CrashEmailReport extends AbstractCrashReportHandler {private String mReceiveEmail;public CrashEmailReport(Context context) {super(context);}public void setReceiver(String receiveEmail) {mReceiveEmail = receiveEmail;}@Overrideprotected void sendReport(String title, String body, File file) {LogMail sender = new LogMail().setUser("irain_log@163.com").setPass("xxxxxxxx").setFrom("irain_log@163.com").setTo(mReceiveEmail).setHost("smtp.163.com").setPort("465").setSubject(title).setBody(body);sender.init();try {sender.addAttachment(file.getPath(), file.getName());sender.send();file.delete();} catch (Exception e) {e.printStackTrace();}}
}

这样，一个完整的程序崩溃异常框架就完成了。对于日志报告，可自己继承AbstractCrashReportHandler来扩展实现。

使用的时候，需要写一个继承自Application的类，在onCreate方法中加上如下代码，即设置接收邮箱。

  new CrashEmailReport(this).setReceiver("log@msdx.pw");

然后在AndroidManifest.xml中配置这个类。

项目已开源，见另一篇博客：http://blog.csdn.net/maosidiaoxian/article/details/27320815

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