主要源码：
package com.demo.uploaderrorinfofile.common; import java.io.File; import java.io.FileOutputStream; import java.io.PrintWriter; import java.lang.Thread.UncaughtExceptionHandler; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.commons.collections.MapUtils; import org.apache.commons.collections.map.CaseInsensitiveMap; import org.apache.commons.lang.StringUtils; import com.demo.uploaderrorinfofile.Utils.FileNameUtils; import com.demo.uploaderrorinfofile.Utils.FilePathUtils; import com.demo.uploaderrorinfofile.Utils.HttpClientUpLoadTask; import com.demo.uploaderrorinfofile.Utils.JsonUtils; import com.demo.uploaderrorinfofile.Utils.PackageManagerUtils; import android.content.Context; //import android.content.pm.PackageInfo; import android.text.format.DateFormat; import android.util.Log; /** * 在Application中统一捕获异常，保存到文件中上传 * 自定义异常类实现UncaughtExceptionHandler接口，当某个页面出现 * 异常就会调用uncaughtException这个方法，我们可以在这个方法中获取 * 异常信息、时间等，然后将获取到的信息发送到我们指定的服务器 */ public class CrashHandler implements UncaughtExceptionHandler { private static final String logTag = CrashHandler.class.getSimpleName(); // private PackageInfo packageInfo; /** 系统默认的UncaughtException处理类 */ private Thread.UncaughtExceptionHandler defaultHandler; /** CrashHandler实例 */ private static CrashHandler INSTANCE; /** 程序的Context对象 */ private Context context; /** 保证只有一个CrashHandler实例 */ private CrashHandler() {} /** 获取CrashHandler实例 ,单例模式*/ public static CrashHandler getInstance() { if (INSTANCE == null) { INSTANCE = new CrashHandler(); } return INSTANCE; } /** * 初始化,注册Context对象, * 获取系统默认的UncaughtException处理器, * 设置该CrashHandler为程序的默认处理器 * * @param ctx */ public void register(Context ctx) { this.context = ctx; //获取默认的handler defaultHandler = Thread.getDefaultUncaughtExceptionHandler(); //设置自己的handler Thread.setDefaultUncaughtExceptionHandler(this); } /** * 当UncaughtException发生时会转入该函数来处理 */ @Override public void uncaughtException(Thread thread, Throwable ex) { Log.d(logTag, "Now enter CrashHandler. In somewhere occur error. I try to save the error."); boolean isProcessed = handleException(thread, ex); if (!isProcessed && defaultHandler != null) { //如果用户没有处理则让系统默认的异常处理器来处理 defaultHandler.uncaughtException(thread, ex); } else { //如果自己处理了异常，则不会弹出错误对话框，则需要手动退出程序 try { Thread.sleep(3000); } catch (InterruptedException e) { } //干掉自己 android.os.Process.killProcess(android.os.Process.myPid()); //退出程序 System.exit(10); } } /** * 自定义错误处理,收集错误信息 * 发送错误报告等操作均在此完成. * true代表处理该异常，不再向上抛异常， * false代表不处理该异常(可以将该log信息存储起来)然后交给上层(这里就到了系统的异常处理)去处理， * 简单来说就是true不会弹出那个错误提示框，false就会弹出 */ private boolean handleException(final Thread thread, final Throwable ex) { if (ex == null) { Log.d(logTag, "no exception info."); return false; } //得到详细的错误信息 final String errorInfo = this.getErrorInfo(ex); Log.d(logTag, errorInfo); //得到错误信息所保存的文件的绝对路径 String errorLogFilePath = this.saveToErrorLogFile(errorInfo); if(StringUtils.isNotBlank(errorLogFilePath)){ Log.d(logTag, "error saved in file " + errorLogFilePath); //服务器的接口位置 yxg // String url = URLFactory.getInstance(this.context).getServicesURL().getUploadErrorLogURL(); String url = "http://192.168.18.126:8080/test/upload"; Map<String, Object> upLoadMsgFile=new HashMap<String, Object>(); upLoadMsgFile.put("files",errorLogFilePath); //假如文件路径不为空，就将错误文件上传到服务器上 HttpClientUpLoadTask uploadFileTask = new HttpClientUpLoadTask(); uploadFileTask.execute(url,JsonUtils.toJson(upLoadMsgFile)); String resultData; try { resultData = uploadFileTask.get(); uploadFileCallBack(resultData, errorLogFilePath); } catch (Exception e) { e.printStackTrace(); } } return false; } //获取详细的错误信息、应用程序的信息、手机型号版本 private String getErrorInfo(Throwable ex) { List<String> errorContents = new ArrayList<String>(); StackTraceElement[] sts = ex.getStackTrace();//获取错误代码的位置和信息 if(null != sts){ for(StackTraceElement st : sts){ if(null != st && null != st.toString()){ errorContents.add(st.toString()); } } } @SuppressWarnings("unchecked") Map<String,Object> errorInfoMap = new CaseInsensitiveMap(); //发生错误的时间 errorInfoMap.put("errortime", DateFormat.format("yyyy-MM-dd kk:mm:ss", new Date(System.currentTimeMillis()))); //手机型号 errorInfoMap.put("phonetype", android.os.Build.MODEL); errorInfoMap.put("androidsdkversion", android.os.Build.VERSION.SDK); errorInfoMap.put("androidreleaseversion", android.os.Build.VERSION.RELEASE); String localVersion =PackageManagerUtils.getInstance(this.context).getVersionName(); errorInfoMap.put("appversion", localVersion); errorInfoMap.put("errormessage", ex.getMessage()); errorInfoMap.put("errorcontent", errorContents); //上面得到的错误信息 (String) return JsonUtils.toJson(errorInfoMap); } //获取错误信息存储文件的路径（已经写入了错误信息）返回错误文件的位置的绝对路径 private String saveToErrorLogFile(String errorInfo){ //错误文件的名字 String fileName = CrashHandler.this.genErrorFileName(); //错误文件的目录 String fileDir = CrashHandler.this.getLogDir(); try { File errorLogFile = new File(fileDir, fileName); Log.d(CrashHandler.logTag, String.format("save error file is:%s", errorLogFile.getAbsolutePath())); //将错误信息写到文件里面 PrintWriter pw = new PrintWriter(new FileOutputStream(errorLogFile,true)); pw.println(errorInfo); pw.flush(); pw.close(); //getAbsolutePath()得到绝对路径、全路径 return errorLogFile.getAbsolutePath(); } catch (Exception e) { Log.e(logTag, "write file error.", e); } return null; } //错误文件的目录 private String getLogDir(){ String logDir = FilePathUtils.getFilePath(this.context); try { File logDirFile = new File(logDir); if (!logDirFile.exists()) { logDirFile.mkdirs(); Log.d(logTag, String.format("make dir success<%s>", logDirFile.getAbsolutePath())); } Log.d(logTag, String.format("log dir is:%s", logDirFile.getAbsolutePath())); } catch (Exception e) { Log.e(logTag, "make dir error.", e); } return logDir; } //将app的名字作为错误文件的名字(包含错误时间) private String genErrorFileName(){ String fileName = PackageManagerUtils.getInstance(this.context).getAppName(); fileName += "-"; fileName += "error"; fileName += "-"; fileName += FileNameUtils.genFileNameByDateTime();//获取当前的时间 fileName += ".log"; return fileName; } //根据服务器返回值判定是否上传成功。（resultCode==0表示上传成功） private final void uploadFileCallBack(String resultData, String errorLogFilePath ){ if(StringUtils.isBlank(resultData) || StringUtils.isBlank( errorLogFilePath)){ Log.d(logTag, "uploadFileCallBack occur error."); return; } Log.d(logTag, "uploadFileCallBack receive resultData: "+ resultData); Map resultMap = JsonUtils.fromJsonToCaseInsensitiveMap(resultData); int resultCode = MapUtils.getIntValue(resultMap, "resultCode", -1); if(0 == resultCode){ File f = new File( errorLogFilePath); if(f.exists()){ f.delete(); Log.d(logTag, "delete errorlog file ok. "+ errorLogFilePath); }else{ Log.d(logTag, "errorlog file not exists. "+ errorLogFilePath); } }else{ Log.d(logTag, "uploadFileCallBack resultCode=" + resultCode); } } }