zh

src/main/java/com/zh/project0512/controller/UtilsController.java

@@ -9,6 +9,7 @@ import com.zh.project0512.service.ITaskService;
 import com.zh.project0512.service.IVideoService;
 import com.zh.project0512.utils.FileTypeUtil;
 import com.zh.project0512.utils.RegexUtil;
+import com.zh.project0512.utils.RegexUtils;
 import com.zh.project0512.utils.result.HttpStatusEnum;
 import com.zh.project0512.utils.result.Result;
 import io.swagger.v3.oas.annotations.Operation;
@@ -96,9 +97,9 @@ public class UtilsController {
                 commpressPicCycle(filePathSmall, picSizeLimit, 0.8);
                 res.put("fileUrlSmall", "/upload/" + newFileNameSmall);
             }
-//            if (!dest.getParentFile().exists()) {
-//                dest.getParentFile().mkdirs();
-//            }
+            if (!dest.getParentFile().exists()) {
+                dest.getParentFile().mkdirs();
+            }
             file.transferTo(dest);
 
             res.put("fileUrl", "/upload/" + newFileName);
@@ -199,11 +200,8 @@ public class UtilsController {
     }
 
     public static void main(String[] args) {
-        String url = "4.38 wfb:/ 复制打开抖音，看看【酸味真火的作品】坚持总会有收获的# 意想不到的情侣健身 https://v.douyin.com/YT982Sf/";
-        Pattern p = Pattern.compile("((https://)+\\S*(/)\\S*(/))", Pattern.CASE_INSENSITIVE);
-        System.out.println(new RegexUtil().httpReg(url));
-//        Matcher m = p.matcher(url);
-//        System.out.println(m);
+        String url = "4.38 wfb:/ 复制打开抖音身 https://v.douyin.com/YT98hjf/，看看【酸味真火的作品】坚持总会有收获的# 意想不到的情侣健身 https://v.douyin.com/YT982Sf/";
+      System.out.println( RegexUtils.get("(https://)(.*?)(/)(.*?)(/)",url,0));
 //        String a = m.find() ? m.group(1) : url;
 //        System.out.println(a);
 //        int b = StringUtils.countOccurrencesOf(a, "https://v.douyin");

src/main/java/com/zh/project0512/controller/wxApp/VideoUController.java

@@ -12,6 +12,7 @@ import com.zh.project0512.service.IVideoService;
 import com.zh.project0512.utils.JwtUtil;
 import com.zh.project0512.utils.MybatisPlusUtil;
 import com.zh.project0512.utils.RegexUtil;
+import com.zh.project0512.utils.RegexUtils;
 import com.zh.project0512.utils.result.HttpStatusEnum;
 import com.zh.project0512.utils.result.Result;
 import io.jsonwebtoken.Claims;
@@ -97,7 +98,7 @@ public class VideoUController {
             return Result.fail(HttpStatusEnum.CUSTOM_EXCEPTION, "已提交过该平台视频");
         }
         // 校验并提取链接
-        String s = new RegexUtil().httpReg(param.getUrl());
+        String s = RegexUtils.get("(https://)(.*?)(/)(.*?)(/)",param.getUrl(),0);
         if(null == s){
             return Result.fail(HttpStatusEnum.CUSTOM_EXCEPTION, "视频链接有误");
         }else if(param.getType() == 1&&0==StringUtils.countOccurrencesOf(s,"https://v.douyin")){

src/main/java/com/zh/project0512/utils/RegexUtil.java

@@ -7,7 +7,7 @@ public class RegexUtil {
 
     // 截取字符串中https部分
     public String httpReg(String url) {
-        Pattern p = Pattern.compile("((https://)+\\S*\\s)", Pattern.CASE_INSENSITIVE);
+        Pattern p = Pattern.compile("(https://)(.*?)(/)(.*?)(/)", Pattern.CASE_INSENSITIVE);
         Matcher m = p.matcher(url);
         String a = m.find() ? m.group(1) : null;
         return a;

src/main/java/com/zh/project0512/utils/RegexUtils.java

@@ -0,0 +1,153 @@
+package com.zh.project0512.utils;
+
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Consumer;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * java 正则匹配基本操作工具类
+ * 1. 多行匹配
+ * 2. 已支持 . (默认正则 不支持) 匹配所有字符包括换行
+ * <p>
+ * 参考:https://www.cnblogs.com/Krloypower/p/11356805.html
+ *
+ * @description:
+ * @author: mabh
+ * @create: 2021/5/6 14:09
+ **/
+public final class RegexUtils {
+    /**
+     * 缓存一些 Pattern.compile() 的
+     */
+    private static final Map<String, Pattern> PATTERN = new HashMap<>();
+
+    private RegexUtils() {
+    }
+
+    public static String get(String regex, String content) {
+        return get(regex, content, 0);
+    }
+
+    public static String get(String regex, String content, int groupIndex) {
+        return get(getPattern(regex), content, groupIndex);
+    }
+
+    public static String get(Pattern pattern, String content) {
+        return get(pattern, content, 0);
+    }
+
+    public static String get(Pattern pattern, String content, int groupIndex) {
+        Matcher matcher = pattern.matcher(content);
+        if (matcher.find()) {
+            return matcher.group(groupIndex);
+        }
+        return null;
+    }
+
+    /**
+     * 获取匹配项
+     *
+     * @param regex
+     * @param input
+     * @return 返回一个list集合类型的匹配项
+     * @see #getMatcherList(String, CharSequence, int)
+     */
+    public static List<String> getMatcherList(String regex, CharSequence input) {
+        return getMatcherList(regex, input, 0);
+    }
+
+    /**
+     * 获取匹配项
+     *
+     * @param regex
+     * @param input
+     * @param group //group(0) 返回符合条件的字符串,  group(1) 表示正则表达式中符合条件的字符串中的第一个() 中的字符串。
+     * @return 返回一个list集合类型的匹配项
+     * @see #getMatcherList(String, CharSequence)
+     */
+    public static List<String> getMatcherList(String regex, CharSequence input, int group) {
+        List<String> list = new ArrayList<>();
+        forEach(regex, input, matcher -> list.add(matcher.group(group)));
+        return list;
+    }
+
+    /**
+     * 迭代匹配，更自由的操作，一般无需直接操作改方法，除非你有更复杂的场景。
+     *
+     * @param regex
+     * @param input
+     * @param consumer
+     * @see #getMatcherList(String, CharSequence, int)
+     * @see #findAny(String, CharSequence)
+     */
+    public static void forEach(String regex, CharSequence input, Consumer<Matcher> consumer) {
+        Matcher matcher = getMatcher(getPattern(regex), input);
+        while (matcher.find()) {
+            consumer.accept(matcher);
+        }
+    }
+
+    /**
+     * 非贪婪模式匹配，是否有匹配项
+     *
+     * @param regex
+     * @param input
+     * @return true，存在指定规则的匹配数据
+     */
+    public static boolean findAny(String regex, CharSequence input) {
+        //默认贪婪是匹配，如果仅仅查询是否有匹配项，直接是否非贪婪即可，性能更好，哪怕这种性能微乎其微
+        return findAny(getPattern("^" + regex), input);
+    }
+
+    public static boolean findAny(Pattern pattern, CharSequence input) {
+        return getMatcher(pattern, input).find();
+    }
+
+    /**
+     * 是否匹配
+     *
+     * @param regex
+     * @param input
+     * @return
+     */
+    public static boolean matches(String regex, CharSequence input) {
+        return getMatcher(getPattern(regex), input).matches();
+    }
+
+    /**
+     * 优先会找缓存，找不到再初始化
+     *
+     * @param regex 标准的正则表达式
+     * @return
+     */
+    private static Pattern getPattern(String regex) {
+        Pattern pattern = PATTERN.getOrDefault(regex, Pattern.compile(regex,Pattern.DOTALL | Pattern.MULTILINE));
+        PATTERN.put(regex, pattern);
+        return pattern;
+    }
+
+    /**
+     * 获取匹配器,会缓存匹配器
+     *
+     * @param pattern
+     * @param input
+     * @return
+     */
+    private static Matcher getMatcher(Pattern pattern, CharSequence input) {
+        if (pattern == null) {
+            return null;
+        }
+        String regex = pattern.pattern();
+        if (!PATTERN.containsKey(regex)) {
+            PATTERN.put(regex, pattern);
+        }
+        return pattern.matcher(input);
+    }
+
+}
+