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feat(log): 增加日志定期清理机制，防止长期运行日志无限累加

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- FileLogger 新增过期清理（保留7天）及单文件100MB写入上限
- CrashHandler 激活崩溃日志清理并补充异常保护
- App 启动清理 + 运行中每24小时定时清理，覆盖设备长期不断电场景

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
mazengfei
2026-08-31 14:57:32 +08:00
co-authored by Claude Fable 5
parent c77c32fde1
commit 03e6c9a6bb
3 changed files with 82 additions and 11 deletions
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app/src/main/java/com/shuwei/intelligent/shelves/App.kt
+28
View File
@@ -5,8 +5,11 @@ import android.content.Context
import android.content.Intent
import android.content.IntentFilter
import android.content.SharedPreferences
import android.os.Handler
import android.os.Looper
import com.shuwei.intelligent.shelves.utils.BootReceiver
import com.shuwei.intelligent.shelves.utils.CrashHandler
import com.shuwei.intelligent.shelves.utils.FileLogger
/**
* @author: star
@@ -19,10 +22,22 @@ class App : Application() {
super.onCreate()
app = this
CrashHandler.init(this)
// 启动时立即清理一次过期日志
cleanupLogs()
// 设备长期不断电、进程不会重新启动，运行中每24小时定期清理一次
logCleanupHandler.postDelayed(logCleanupRunnable, LOG_CLEANUP_INTERVAL)
val filter = IntentFilter(Intent.ACTION_BOOT_COMPLETED)
registerReceiver(BootReceiver(), filter)
}
/**
* 清理过期的日志文件：文件日志与崩溃日志均保留最近7天
*/
private fun cleanupLogs() {
FileLogger.cleanupExpiredLogs(this)
CrashHandler.getInstance()?.cleanupOldCrashReports()
}
companion object {
private lateinit var app: App
var canteenId = "0"
@@ -36,6 +51,19 @@ class App : Application() {
@Volatile
private var sharedPref: SharedPreferences? = null
/** 日志定期清理间隔：24小时，与日志文件按天滚动对齐 */
private const val LOG_CLEANUP_INTERVAL = 24L * 60 * 60 * 1000
private val logCleanupHandler = Handler(Looper.getMainLooper())
/** 日志定期清理任务：执行后重新调度自身，形成循环 */
private val logCleanupRunnable = object : Runnable {
override fun run() {
getInstance().cleanupLogs()
logCleanupHandler.postDelayed(this, LOG_CLEANUP_INTERVAL)
}
}
fun getInstance(): App {
return app
}
app/src/main/java/com/shuwei/intelligent/shelves/utils/CrashHandler.kt
+20 -7
View File
@@ -39,11 +39,19 @@ class CrashHandler private constructor(private val context: Context) :
synchronized(CrashHandler::class.java) {
if (instance == null) {
instance = CrashHandler(context.applicationContext)
// 初始化时清理过期的崩溃日志（默认保留7天）
instance?.cleanupOldCrashReports()
}
}
}
}
/**
* 获取单例实例
* @return 已通过 init() 初始化时返回实例，否则返回 null
*/
fun getInstance(): CrashHandler? = instance
//fun getCrashReportFiles(context: Context): Array<File> {
// val crashDir = getCrashDir()
// return if (crashDir.exists() && crashDir.isDirectory) {
@@ -222,16 +230,21 @@ class CrashHandler private constructor(private val context: Context) :
* 清理旧的崩溃日志
*/
fun cleanupOldCrashReports(maxAgeDays: Int = 7) {
val crashDir = getCrashDir()
if (!crashDir.exists() || !crashDir.isDirectory) return
// 该方法会在 Application 启动及定时任务中调用，异常必须内部消化，避免影响主流程
try {
val crashDir = getCrashDir()
if (!crashDir.exists() || !crashDir.isDirectory) return
val now = System.currentTimeMillis()
val maxAgeMillis = maxAgeDays * 24 * 60 * 60 * 1000L
val now = System.currentTimeMillis()
val maxAgeMillis = maxAgeDays * 24 * 60 * 60 * 1000L
crashDir.listFiles()?.forEach { file ->
if (file.lastModified() < now - maxAgeMillis) {
file.delete()
crashDir.listFiles()?.forEach { file ->
if (file.lastModified() < now - maxAgeMillis) {
file.delete()
}
}
} catch (e: Exception) {
Log.e(TAG, "清理崩溃日志失败", e)
}
}
app/src/main/java/com/shuwei/intelligent/shelves/utils/FileLogger.kt
+34 -4
View File
@@ -17,8 +17,37 @@ class FileLogger(private val context: Context) {
private const val LOG_DIR = "logs"
private const val FILE_PREFIX = "log_"
private const val FILE_EXTENSION = ".txt"
/** 日志保留天数，超过该天数的日志文件在应用启动时清理 */
private const val RETENTION_DAYS = 7L
/** 单个日志文件大小上限（100MB），超过后当天不再写入，防止异常刷屏撑爆存储 */
private const val MAX_LOG_FILE_SIZE = 100L * 1024 * 1024
private val dateFormat = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
private val timeFormat = SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault())
/**
* 清理过期的日志文件，保留最近 retentionDays 天
* 按文件最后修改时间判断，最近仍在写入的文件不会被误删
* 建议在 Application 启动时调用一次
* @param context 上下文，用于定位 filesDir
* @param retentionDays 日志保留天数
*/
fun cleanupExpiredLogs(context: Context, retentionDays: Long = RETENTION_DAYS) {
try {
val cutoff = System.currentTimeMillis() - retentionDays * 24 * 60 * 60 * 1000L
context.filesDir.listFiles { _, name ->
name.startsWith(FILE_PREFIX) && name.endsWith(FILE_EXTENSION)
}?.forEach { file ->
if (file.lastModified() < cutoff) {
file.delete()
}
}
} catch (e: Exception) {
e.printStackTrace()
}
}
}
/**
@@ -45,6 +74,7 @@ class FileLogger(private val context: Context) {
/**
* 写入文件
* 单文件超过大小上限（100MB）时当天不再写入，防止异常刷屏撑爆存储
*/
private fun writeToFile(logEntry: String) {
// val path = File(context.filesDir, LOG_DIR)
@@ -52,10 +82,10 @@ class FileLogger(private val context: Context) {
// path.mkdirs()
// }
val fileName = getCurrentDateFileName()
// val file = File(path, fileName)
// if (file.exists().not()) {
// file.createNewFile()
// }
val file = File(context.filesDir, fileName)
if (file.exists() && file.length() > MAX_LOG_FILE_SIZE) {
return
}
val output = context.openFileOutput(fileName, Context.MODE_APPEND)
val writer = BufferedWriter(OutputStreamWriter(output))