fix:优化图片处理

src/main/java/com/kwan/springbootkwan/utils/FileContainsUtil.java

@@ -12,6 +12,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.stream.Collectors;
 
 /**
  * 删除博客中不存在的照片
@@ -25,7 +26,7 @@ public class FileContainsUtil {
     /**
      * 默认图片不存在
      */
-    private static boolean IS_EXIST = false;
+    private static ThreadLocal<Boolean> IS_EXIST = ThreadLocal.withInitial(() -> false);
     /**
      * 图片路径
      */
@@ -61,49 +62,95 @@ public class FileContainsUtil {
         final List<String> picNames = getPicName(PIC_PATH);
         final int size = picNames.size();
         log.info("图片总数为{}", size);
-        if (CollectionUtil.isNotEmpty(picNames)) {
-            outerloop:
-            for (int i = 0; i < size; i++) {
-                String picName = picNames.get(i);
+        List<List<String>> groupedPicNames = dataGroup(picNames);
+        moreThread(groupedPicNames, isNotExist);
+        log.info("不存在图片总数为{}", isNotExist.size());
+        stopWatch.stop();
+        //毫秒输出
+        log.info("耗时统计信息:{}", JSON.toJSONString(stopWatch.getTaskInfo()));
+        log.info("耗时秒数:{}", JSON.toJSONString(stopWatch.getTotalTimeSeconds()));
+        log.info("耗时分钟数:{}", JSON.toJSONString(stopWatch.getTotalTimeSeconds() / 60));
+    }
+
+    /**
+     * 多线程处理图片任务
+     *
+     * @param groupedPicNames
+     * @param isNotExist
+     */
+    private static void moreThread(List<List<String>> groupedPicNames, List<String> isNotExist) {
+        // 创建并启动4个线程来处理每个组的任务
+        List<Thread> threads = new ArrayList<>();
+        for (int i = 0; i < 6; i++) {
+            final List<String> group = groupedPicNames.get(i);
+            Thread thread = new Thread(() -> {
+                // 在这里执行处理图片组的任务
+                if (CollectionUtil.isNotEmpty(group)) {
+                    for (String picName : group) {
+                        // 处理图片文件 picName
                         //是白名单里面的图片,直接忽略
                         for (String picPathWhitelist : PIC_PATH_WHITELISTS) {
                             if (picPathWhitelist.contains(picName)) {
-                        continue outerloop;
+                                continue;
                             }
                         }
                         //默认不存在
-                IS_EXIST = false;
-                //指定类型的文件
-                List<String> suffix = new ArrayList<>();
-                suffix.add(".md");
+                        IS_EXIST.set(false);
                         //包含某个字符串
-                traverseFolder(BLOG_FOLDER1, suffix, picName);
-                traverseFolder(BLOG_FOLDER2, suffix, picName);
-                traverseFolder(BLOG_FOLDER3, suffix, picName);
+                        try {
+                            traverseFolder(BLOG_FOLDER1, picName);
+                            traverseFolder(BLOG_FOLDER2, picName);
+                            traverseFolder(BLOG_FOLDER3, picName);
+                        } catch (Exception e) {
+                            e.printStackTrace();
+                        }
                         //文件不存在
-                if (!IS_EXIST) {
+                        if (!IS_EXIST.get()) {
                             isNotExist.add(picName);
                             deletePic(PIC_PATH + picName);
                         }
                     }
                 }
-        log.info("不存在图片总数为{}", isNotExist.size());
-        stopWatch.stop();
-        //毫秒输出
-        log.info("耗时统计信息:{}", JSON.toJSONString(stopWatch.getTaskInfo()));
-        log.info("耗时秒数:{}", JSON.toJSONString(stopWatch.getTotalTimeSeconds()));
-        log.info("耗时分钟数:{}", JSON.toJSONString(stopWatch.getTotalTimeSeconds() / 60));
+
+            });
+            thread.start();
+            threads.add(thread);
+        }
+        // 等待所有线程完成
+        for (Thread thread : threads) {
+            try {
+                thread.join();
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * 数据分组
+     *
+     * @param picNames
+     * @return
+     */
+    private static List<List<String>> dataGroup(List<String> picNames) {
+        int groupSize = picNames.size() / 6; // 计算每组的大小
+        List<List<String>> groupedPicNames =
+                picNames.stream()
+                        .collect(Collectors.groupingBy(e -> picNames.indexOf(e) / groupSize))
+                        .values()
+                        .stream()
+                        .collect(Collectors.toList());
+        return groupedPicNames;
     }
 
     /**
      * 获取文件
      *
      * @param path
-     * @param suffixs
      * @param word
      * @throws IOException
      */
-    public static void traverseFolder(String path, List<String> suffixs, String word) throws Exception {
+    public static void traverseFolder(String path, String word) throws Exception {
         File file = new File(path);
         if (file.exists()) {
             //获取文件夹下的文件
@@ -112,11 +159,10 @@ public class FileContainsUtil {
                 for (File file2 : files) {
                     //是否是文件夹
                     if (file2.isDirectory()) {
-                        traverseFolder(file2.getAbsolutePath(), suffixs, word);
+                        traverseFolder(file2.getAbsolutePath(), word);
                     } else {
-                        for (String suffix : suffixs) {
                         //包含md结尾的文件
-                            if (file2.getAbsolutePath().contains(suffix)) {
+                        if (file2.getAbsolutePath().contains(".md")) {
                             getParams(file2.getAbsolutePath(), word);
                         }
                     }
@@ -124,7 +170,6 @@ public class FileContainsUtil {
             }
         }
     }
-    }
 
     /**
      * 判断文件是否存在
@@ -141,7 +186,7 @@ public class FileContainsUtil {
             //判断是否包含方法名称，即指定字符串
             if (string.contains(word)) {
                 //文件存在
-                IS_EXIST = true;
+                IS_EXIST.set(true);
             }
         }
     }