增加无效图片清理

novel-front/src/main/java/xyz/zinglizingli/books/core/schedule/ClearInvilidDataSchedule.java

@@ -8,6 +8,8 @@ import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
 import xyz.zinglizingli.books.service.BookService;
 
+import java.io.File;
+
 /**
  * 清理数据库中无效数据
  *
@@ -32,8 +34,23 @@ public class ClearInvilidDataSchedule {
 
         bookService.clearInvilidData();
 
-
+        clearInvilidFile(new File(picSavePath));
 
 
     }
+
+    private void clearInvilidFile(File directory) {
+        for(File file : directory.listFiles()){
+            if(file.isDirectory()){
+                clearInvilidFile(file);
+            }else{
+                String fileName = file.getName();
+                int count = bookService.countByPicName(fileName);
+                if(count == 0){
+                    file.deleteOnExit();
+                }
+            }
+        }
+
+    }
 }

novel-front/src/main/java/xyz/zinglizingli/books/service/BookService.java

@@ -433,4 +433,13 @@ public class BookService {
     public List<Book> queryNetworkPicBooks(Integer limit, Integer offset) {
         return bookMapper.queryNetworkPicBooks(limit,offset);
     }
+
+    /**
+     * 通过图片名查询小说数量
+     * */
+    public int countByPicName(String fileName) {
+        BookExample bookExample = new BookExample();
+        bookExample.createCriteria().andPicUrlLike('%'+fileName+'%');
+        return bookMapper.countByExample(bookExample);
+    }
 }