优化

app/src/main/java/io/legado/app/model/CacheBook.kt

@@ -197,20 +197,15 @@ class CacheBook(var bookSource: BookSource, var book: Book) {
                 chapter,
                 context = context
             ).onSuccess { content ->
-                if (content.isNotBlank()) {
                 onSuccess(chapterIndex)
                 addLog("${book.name}-${chapter.title} getContentSuccess")
-                    downloadFinish(chapter, content.ifBlank { "No content" })
-                } else {
-                    //出现错误等待1秒后重新加入待下载列表
-                    delay(1000)
-                    onErrorOrCancel(chapterIndex)
-                    addLog("${book.name}-${chapter.title} getContentError 内容为空")
-                    downloadFinish(chapter, "download error 内容为空")
-                }
+                downloadFinish(chapter, content)
             }.onError {
-                //出现错误等待1秒后重新加入待下载列表
-                delay(1000)
+                //出现错误等待后重新加入待下载列表
+                when (it) {
+                    is ConcurrentException -> delay(it.waitTime)
+                    else -> delay(1000)
+                }
                 onErrorOrCancel(chapterIndex)
                 print(it.localizedMessage)
                 addLog("${book.name}-${chapter.title} getContentError${it.localizedMessage}")
@@ -238,7 +233,7 @@ class CacheBook(var bookSource: BookSource, var book: Book) {
             WebBook.getContent(scope, bookSource, book, chapter)
                 .onSuccess { content ->
                     onSuccess(chapter.index)
-                    downloadFinish(chapter, content.ifBlank { "No content" }, resetPageOffset)
+                    downloadFinish(chapter, content, resetPageOffset)
                 }.onError {
                     onErrorOrCancel(chapter.index)
                     downloadFinish(

app/src/main/java/io/legado/app/model/Exceptions.kt

@@ -0,0 +1,5 @@
+package io.legado.app.model
+
+class ContentEmptyException(msg: String) : Exception(msg)
+
+class ConcurrentException(msg: String, val waitTime: Long) : Exception(msg)

app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeUrl.kt

@@ -14,6 +14,7 @@ import io.legado.app.help.AppConfig
 import io.legado.app.help.CacheManager
 import io.legado.app.help.JsExtensions
 import io.legado.app.help.http.*
+import io.legado.app.model.ConcurrentException
 import io.legado.app.utils.*
 import java.net.URLEncoder
 import java.util.*
@@ -312,7 +313,7 @@ class AnalyzeUrl(
             }
         }
         if (waitTime > 0) {
-            error("根据并发率还需等待${waitTime}毫秒才可以访问")
+            throw ConcurrentException("根据并发率还需等待${waitTime}毫秒才可以访问", waitTime = waitTime)
         }
     }
 

app/src/main/java/io/legado/app/model/webBook/BookContent.kt

@@ -7,6 +7,7 @@ import io.legado.app.data.entities.BookChapter
 import io.legado.app.data.entities.BookSource
 import io.legado.app.data.entities.rule.ContentRule
 import io.legado.app.help.BookHelp
+import io.legado.app.model.ContentEmptyException
 import io.legado.app.model.Debug
 import io.legado.app.model.analyzeRule.AnalyzeRule
 import io.legado.app.model.analyzeRule.AnalyzeUrl
@@ -114,9 +115,10 @@ object BookContent {
         Debug.log(bookSource.bookSourceUrl, "└${bookChapter.title}")
         Debug.log(bookSource.bookSourceUrl, "┌获取正文内容")
         Debug.log(bookSource.bookSourceUrl, "└\n$contentStr")
-        if (contentStr.isNotBlank()) {
-            BookHelp.saveContent(bookSource, book, bookChapter, contentStr)
+        if (contentStr.isBlank()) {
+            throw ContentEmptyException("${bookChapter.title}内容为空")
         }
+        BookHelp.saveContent(bookSource, book, bookChapter, contentStr)
         return contentStr
     }