diff --git a/app/src/main/java/io/legado/app/model/localBook/LocalBook.kt b/app/src/main/java/io/legado/app/model/localBook/LocalBook.kt
index 97a607a74..66d0c2ebc 100644
--- a/app/src/main/java/io/legado/app/model/localBook/LocalBook.kt
+++ b/app/src/main/java/io/legado/app/model/localBook/LocalBook.kt
@@ -245,6 +245,8 @@ object LocalBook {
         } else {
             deleteBook(book, false)
             upBookInfo(book)
+            // 触发 isLocalModified
+            book.latestChapterTime = 0
             //已有书籍说明是更新,删除原有目录
             appDb.bookChapterDao.delByBook(bookUrl)
         }
diff --git a/app/src/main/java/io/legado/app/model/localBook/TextFile.kt b/app/src/main/java/io/legado/app/model/localBook/TextFile.kt
index fca8878e4..4e7cd6b3e 100644
--- a/app/src/main/java/io/legado/app/model/localBook/TextFile.kt
+++ b/app/src/main/java/io/legado/app/model/localBook/TextFile.kt
@@ -76,16 +76,17 @@ class TextFile(private var book: Book) {
      */
     @Throws(FileNotFoundException::class, SecurityException::class, EmptyFileException::class)
     fun getChapterList(): ArrayList<BookChapter> {
-        if (book.charset == null || book.tocUrl.isBlank()) {
+        val modified = book.isLocalModified()
+        if (book.charset == null || book.tocUrl.isBlank() || modified) {
             LocalBook.getBookInputStream(book).use { bis ->
                 val buffer = ByteArray(bufferSize)
                 val length = bis.read(buffer)
                 if (length == -1) throw EmptyFileException("Unexpected Empty Txt File")
-                if (book.charset.isNullOrBlank()) {
+                if (book.charset.isNullOrBlank() || modified) {
                     book.charset = EncodingDetect.getEncode(buffer.copyOf(length))
                 }
                 charset = book.fileCharset()
-                if (book.tocUrl.isBlank()) {
+                if (book.tocUrl.isBlank() || modified) {
                     val blockContent = String(buffer, 0, length, charset)
                     book.tocUrl = getTocRule(blockContent)?.pattern() ?: ""
                 }
@@ -223,7 +224,7 @@ class TextFile(private var book: Book) {
                          */
                         if (toc.isEmpty()) { //如果当前没有章节，那么就是序章
                             //加入简介
-                            if (StringUtils.trim(chapterContent).isNotEmpty()) {
+                            if (chapterContent.isNotBlank()) {
                                 val qyChapter = BookChapter()
                                 qyChapter.title = "前言"
                                 qyChapter.start = curOffset
diff --git a/app/src/main/java/io/legado/app/ui/book/toc/TocActivity.kt b/app/src/main/java/io/legado/app/ui/book/toc/TocActivity.kt
index 9cd64f516..557a72a94 100644
--- a/app/src/main/java/io/legado/app/ui/book/toc/TocActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/toc/TocActivity.kt
@@ -195,9 +195,11 @@ class TocActivity : VMBaseActivity<ActivityChapterListBinding, TocViewModel>(),
         waitDialog.show()
         viewModel.upBookTocRule(book) {
             waitDialog.dismiss()
-            ReadBook.book?.let { readBook ->
-                if (readBook == book) {
+            if (ReadBook.book == book) {
+                if (it == null) {
                     ReadBook.upMsg(null)
+                } else {
+                    ReadBook.upMsg("LoadTocError:${it.localizedMessage}")
                 }
             }
         }
diff --git a/app/src/main/java/io/legado/app/ui/book/toc/TocViewModel.kt b/app/src/main/java/io/legado/app/ui/book/toc/TocViewModel.kt
index c2b9b1d26..5ca389bbb 100644
--- a/app/src/main/java/io/legado/app/ui/book/toc/TocViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/toc/TocViewModel.kt
@@ -35,7 +35,7 @@ class TocViewModel(application: Application) : BaseViewModel(application) {
         }
     }
 
-    fun upBookTocRule(book: Book, finally: () -> Unit) {
+    fun upBookTocRule(book: Book, complete: (Throwable?) -> Unit) {
         execute {
             appDb.bookDao.update(book)
             LocalBook.getChapterList(book).let {
@@ -45,8 +45,10 @@ class TocViewModel(application: Application) : BaseViewModel(application) {
                 ReadBook.onChapterListUpdated(book)
                 bookData.postValue(book)
             }
-        }.onFinally {
-            finally.invoke()
+        }.onSuccess {
+            complete.invoke(null)
+        }.onError {
+            complete.invoke(it)
         }
     }
 
diff --git a/modules/rhino/src/main/java/com/script/rhino/RhinoClassShutter.kt b/modules/rhino/src/main/java/com/script/rhino/RhinoClassShutter.kt
index c2c2e3cfa..356fe350f 100644
--- a/modules/rhino/src/main/java/com/script/rhino/RhinoClassShutter.kt
+++ b/modules/rhino/src/main/java/com/script/rhino/RhinoClassShutter.kt
@@ -55,6 +55,7 @@ object RhinoClassShutter : ClassShutter {
             "java.lang.ProcessImpl",
             "java.lang.UNIXProcess",
             "java.io.File",
+            "java.io.FileDescriptor",
             "java.io.FileInputStream",
             "java.io.FileOutputStream",
             "java.io.PrintStream",
@@ -113,6 +114,7 @@ object RhinoClassShutter : ClassShutter {
             "com.script",
             "org.mozilla",
             "sun",
+            "libcore",
         ).let { ClassNameMatcher(it) }
     }