Android程序闪退时写日志并上传到服务器

出门莫恨无人随，书中车马多如簇。这篇文章主要讲述Android程序闪退时写日志并上传到服务器相关的知识，希望能为你提供帮助。

package com.cquni.app; import java.io.File; import java.io.FileOutputStream; import java.io.PrintWriter; import java.io.StringWriter; import java.io.Writer; import java.lang.Thread.UncaughtExceptionHandler; import java.lang.reflect.Field; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.os.AsyncTask; import android.os.Build; import android.os.Environment; import android.os.Looper; import android.util.Log; import android.widget.Toast; import com.cquni.dto.WebApiResultMessage; import com.cquni.utils.JSONHttpClient; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; /** * UncaughtException处理类,当程序发生Uncaught异常的时候,有该类来接管程序,并记录发送错误报告. * * @author user * */ public class CrashHandler implements UncaughtExceptionHandler {public static final String TAG = "CrashHandler"; // 系统默认的UncaughtException处理类 private Thread.UncaughtExceptionHandler mDefaultHandler; // CrashHandler实例 private static CrashHandler INSTANCE = new CrashHandler(); // 程序的Context对象 private Context mContext; // 用来存储设备信息和异常信息 private Map< String, String> infos = new HashMap< String, String> (); // 用于格式化日期,作为日志文件名的一部分 private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss"); /** 保证只有一个CrashHandler实例 */ private CrashHandler() { }/** 获取CrashHandler实例 ,单例模式 */ public static CrashHandler getInstance() { return INSTANCE; }/** * 初始化 * * @param context */ public void init(Context context) { mContext = context; // 获取系统默认的UncaughtException处理器 mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler(); // 设置该CrashHandler为程序的默认处理器 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) { if (!handleException(ex) & & mDefaultHandler != null) { // 如果用户没有处理则让系统默认的异常处理器来处理 mDefaultHandler.uncaughtException(thread, ex); } else { try { Thread.sleep(3000); } catch (InterruptedException e) { Log.e(TAG, "error : ", e); } finally { // 退出程序 android.os.Process.killProcess(android.os.Process.myPid()); System.exit(1); } } }/** * 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. * * @param ex * @return true:如果处理了该异常信息; 否则返回false. */ private boolean handleException(Throwable ex) { if (ex == null) { return false; } // 收集设备参数信息 collectDeviceInfo(mContext); // 保存日志文件 saveCrashInfo2File(ex); return true; }/** * 收集设备参数信息 * * @param ctx */ public void collectDeviceInfo(Context ctx) { try { PackageManager pm = ctx.getPackageManager(); PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES); if (pi != null) { String versionName = pi.versionName == null ? "null" : pi.versionName; String versionCode = pi.versionCode + ""; infos.put("versionName", versionName); infos.put("versionCode", versionCode); } } catch (NameNotFoundException e) { Log.e(TAG, "an error occured when collect package info", e); } Field[] fields = Build.class.getDeclaredFields(); for (Field field : fields) { try { field.setAccessible(true); infos.put(field.getName(), field.get(null).toString()); Log.d(TAG, field.getName() + " : " + field.get(null)); } catch (Exception e) { Log.e(TAG, "an error occured when collect crash info", e); } } }/** * 保存错误信息到文件中 * * @param ex * @return 返回文件名称,便于将文件传送到服务器 */ private String saveCrashInfo2File(Throwable ex) {StringBuffer sb = new StringBuffer(); for (Map.Entry< String, String> entry : infos.entrySet()) { String key = entry.getKey(); String value = https://www.songbingjia.com/android/entry.getValue(); sb.append(key +"=" + value + " "); }Writer writer = new StringWriter(); PrintWriter printWriter = new PrintWriter(writer); ex.printStackTrace(printWriter); Throwable cause = ex.getCause(); while (cause != null) { cause.printStackTrace(printWriter); cause = cause.getCause(); } printWriter.close(); String result = writer.toString(); sb.append(result); try { long timestamp = System.currentTimeMillis(); String time = formatter.format(new Date()); String fileName = "crash-" + time + "-" + timestamp + ".log"; String path = Environment.getExternalStorageDirectory()+"/wcs_log"; File dir = new File(path); if (!dir.exists()) { dir.mkdirs(); } FileOutputStream fos = new FileOutputStream(path +"/"+ fileName); fos.write(sb.toString().getBytes()); fos.flush(); fos.close(); return fileName; } catch (Exception e) { Log.e(TAG, "an error occured while writing file...", e); } //上传到服务器 new PostErrorLoggerTask().execute(sb.toString()); return null; }/** * 提交错误日志到服务器 */ class PostErrorLoggerTask extends AsyncTask< String, Integer, WebApiResultMessage> {@Override protected WebApiResultMessage doInBackground(String... messageText) { WebApiResultMessage rs = new WebApiResultMessage(); rs.setMessage(""); rs.setResult(null); rs.setSuccess(false); JSONHttpClient jsonHttpClient = new JSONHttpClient(); List< NameValuePair> params = new ArrayList(); params.add(new BasicNameValuePair("errorMessage", messageText[0])); params.add(new BasicNameValuePair("logType", "Error")); String url = "http://192.168.122.5:5990/SmartWCS/UpLoadPDA_Logger"; try { return jsonHttpClient.PostJsonObject(url, "{}", params); } catch (Exception e) { e.printStackTrace(); rs.setMessage(e.getMessage()); } return rs; } } }

服务器端（.net webapi）

/// < summary> /// PDA上传错误日志 /// < /summary> /// < param name="errorMessage"> < /param> /// < param name="logType"> < /param> /// < returns> < /returns> [HttpGet] [HttpPost] public ApiActionResult UpLoadPDA_Logger(string errorMessage,string logType) { var result = new ApiActionResult { Message = "操作失败！", Result = null, Success = false }; if (!string.IsNullOrEmpty(errorMessage)) { StringBuilder sb = new StringBuilder(); string path = AppDomain.CurrentDomain.BaseDirectory + "Log\"; string filename = $"pda_Logs_{DateTime.Now.ToString("yyyyMMdd")}.txt"; if (File.Exists(path + filename)) { StreamReader sr = new StreamReader(path + filename, Encoding.Default); try { string content; while ((content = sr.ReadLine()) != null) { sb.AppendLine(content); } } catch (Exception) {throw; } finally { sr.Close(); Thread.Sleep(100); } } sb.AppendLine(string.Format("{0}-> : "+logType+" : ", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff")) +errorMessage); using (FileStream fs = new FileStream(path + filename, FileMode.OpenOrCreate)) { var buffer = Encoding.Default.GetBytes(sb.ToString()); fs.Write(buffer,0,buffer.Length); fs.Flush(); fs.Close(); result.Success = true; result.Result = sb.ToString(); result.Message = "操作成功！"; } } return result; }

【Android程序闪退时写日志并上传到服务器】