From 8cce08d1d96384edbd2d362173ffa98ca933ef13 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期一, 28 十一月 2022 14:06:42 +0800
Subject: [PATCH] 1

---
 src/main/java/com/lf/server/controller/data/MetaController.java |    8 ++
 src/main/java/com/lf/server/helper/Zip4jHelper.java             |   75 +++++++++++++++++--------
 data/db_fn.sql                                                  |    2 
 src/main/java/com/lf/server/service/data/DownloadService.java   |   73 +++++++++++++++++++++++-
 4 files changed, 129 insertions(+), 29 deletions(-)

diff --git a/data/db_fn.sql b/data/db_fn.sql
index d62b45d..8935ad9 100644
--- a/data/db_fn.sql
+++ b/data/db_fn.sql
@@ -349,7 +349,7 @@
 select * from lf.sys_meta; -- delete from lf.sys_meta where id<113;
 select * from lf.sys_meta_file; -- delete from lf.sys_meta_file where metaid<113;
 
-select * from lf.sys_meta_file a where metaid in (99,100,101)
+select * from lf.sys_meta_file a where metaid in (113,120,121,122);
 alter sequence bd.dlg_agnp_gid_seq restart with 4000;
 select max(gid) from  bd.dlg_agnp;
 
diff --git a/src/main/java/com/lf/server/controller/data/MetaController.java b/src/main/java/com/lf/server/controller/data/MetaController.java
index b180760..685a595 100644
--- a/src/main/java/com/lf/server/controller/data/MetaController.java
+++ b/src/main/java/com/lf/server/controller/data/MetaController.java
@@ -280,8 +280,14 @@
             }
 
             List<MetaFileEntity> list = metaService.selectMetaFiles(reqEntity.getIds());
+            if (null == list || list.isEmpty()) {
+                return fail("娌℃湁鎵惧埌鍏冩暟鎹�");
+            }
 
-            return success(true);
+            UserEntity ue = tokenService.getCurrentUser(req);
+            String guid = downloadService.zipFiles(ue, list, reqEntity.getPwd());
+
+            return success(guid);
         } catch (Exception ex) {
             return fail(ex.getMessage(), null);
         }
diff --git a/src/main/java/com/lf/server/helper/Zip4jHelper.java b/src/main/java/com/lf/server/helper/Zip4jHelper.java
index 2cf0b41..57a6ebb 100644
--- a/src/main/java/com/lf/server/helper/Zip4jHelper.java
+++ b/src/main/java/com/lf/server/helper/Zip4jHelper.java
@@ -1,6 +1,5 @@
 package com.lf.server.helper;
 
-import com.google.common.base.Strings;
 import net.lingala.zip4j.ZipFile;
 import net.lingala.zip4j.exception.ZipException;
 import net.lingala.zip4j.model.ZipParameters;
@@ -12,7 +11,7 @@
 import org.apache.commons.logging.LogFactory;
 
 import java.io.File;
-import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 
 /**
  * Zip4j甯姪绫�
@@ -24,15 +23,15 @@
     /**
      * Zip鍘嬬缉
      *
-     * @param zipFilePath zip鏂囦欢
-     * @param sourcePath  婧愯矾寰�
-     * @param password    瀵嗙爜
+     * @param zipFile    zip鏂囦欢
+     * @param sourcePath 婧愯矾寰�
+     * @param pwd        瀵嗙爜
      * @return 鎴愬姛鏄惁
      */
-    public static boolean zip(String zipFilePath, String sourcePath, String password) {
+    public static boolean zip(String zipFile, String sourcePath, String pwd) {
         try {
-            ZipFile zip = new ZipFile(zipFilePath);
-            zip.setCharset(Charset.forName("UTF-8"));
+            ZipFile zip = StringHelper.isEmpty(pwd) ? new ZipFile(zipFile) : new ZipFile(zipFile, pwd.toCharArray());
+            zip.setCharset(StandardCharsets.UTF_8);
 
             File f = zip.getFile();
             if (!f.getParentFile().exists()) {
@@ -42,22 +41,7 @@
                 f.delete();
             }
 
-            // 璁剧疆鍘嬬缉鏂囦欢鍙傛暟
-            ZipParameters params = new ZipParameters();
-            // 鍘嬬缉鏂瑰紡
-            params.setCompressionMethod(CompressionMethod.DEFLATE);
-            // 鍘嬬缉绾у埆
-            params.setCompressionLevel(CompressionLevel.NORMAL);
-            // 鏄惁璁剧疆鍔犲瘑鏂囦欢
-            params.setEncryptFiles(true);
-            // 璁剧疆AES鍔犲瘑寮哄害锛欿EY_STRENGTH_256
-            params.setAesKeyStrength(AesKeyStrength.KEY_STRENGTH_128);
-            // 璁剧疆鍔犲瘑绠楁硶
-            params.setEncryptionMethod(EncryptionMethod.AES);
-            // 璁剧疆瀵嗙爜
-            if (!Strings.isNullOrEmpty(password)) {
-                zip.setPassword(password.toCharArray());
-            }
+            ZipParameters params = getZipParams();
 
             // 瑕佹墦鍖呯殑鏂囦欢鎴栨枃浠跺す
             File currentFile = new File(sourcePath);
@@ -74,6 +58,49 @@
         }
     }
 
+    /**
+     * 鍒涘缓ZipFile
+     */
+    public static ZipFile createZipFile(String zipFile, String pwd) {
+        try {
+            ZipFile zip = StringHelper.isEmpty(pwd) ? new ZipFile(zipFile) : new ZipFile(zipFile, pwd.toCharArray());
+            zip.setCharset(StandardCharsets.UTF_8);
+
+            File f = zip.getFile();
+            if (!f.getParentFile().exists()) {
+                f.getParentFile().mkdirs();
+            }
+            if (f.exists()) {
+                f.delete();
+            }
+
+            return zip;
+        } catch (Exception ex) {
+            log.error(ex.getMessage(), ex);
+            return null;
+        }
+    }
+
+    /**
+     * 鑾峰彇ZipParameters
+     */
+    public static ZipParameters getZipParams() {
+        // 璁剧疆鍘嬬缉鏂囦欢鍙傛暟
+        ZipParameters params = new ZipParameters();
+        // 鍘嬬缉鏂瑰紡
+        params.setCompressionMethod(CompressionMethod.DEFLATE);
+        // 鍘嬬缉绾у埆
+        params.setCompressionLevel(CompressionLevel.MAXIMUM);
+        // 鏄惁璁剧疆鍔犲瘑鏂囦欢
+        params.setEncryptFiles(true);
+        // 璁剧疆AES鍔犲瘑寮哄害锛欿EY_STRENGTH_256
+        params.setAesKeyStrength(AesKeyStrength.KEY_STRENGTH_128);
+        // 璁剧疆鍔犲瘑绠楁硶
+        params.setEncryptionMethod(EncryptionMethod.AES);
+
+        return params;
+    }
+
     private static void addZipFile(ZipFile zip, ZipParameters params, File file) throws ZipException {
         if (file.isDirectory()) {
             File[] files = file.listFiles();
diff --git a/src/main/java/com/lf/server/service/data/DownloadService.java b/src/main/java/com/lf/server/service/data/DownloadService.java
index fee2ab5..5a4741b 100644
--- a/src/main/java/com/lf/server/service/data/DownloadService.java
+++ b/src/main/java/com/lf/server/service/data/DownloadService.java
@@ -2,16 +2,20 @@
 
 import com.lf.server.entity.ctrl.DownloadReqEntity;
 import com.lf.server.entity.data.DownloadEntity;
-import com.lf.server.helper.PathHelper;
-import com.lf.server.helper.RsaHelper;
-import com.lf.server.helper.StringHelper;
+import com.lf.server.entity.data.MetaFileEntity;
+import com.lf.server.entity.sys.UserEntity;
+import com.lf.server.helper.*;
 import com.lf.server.mapper.data.DownloadMapper;
+import net.lingala.zip4j.ZipFile;
+import net.lingala.zip4j.model.ZipParameters;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.io.File;
+import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
 
 /**
@@ -147,4 +151,67 @@
             return null;
         }
     }
+
+    /**
+     * 鎵撳寘鏂囦欢
+     *
+     * @param ue   鐢ㄦ埛瀹炰綋
+     * @param list 鍏冩暟鎹枃浠堕泦鍚�
+     * @param pwd  瀵嗙爜
+     * @return 涓嬭浇鏂囦欢GUID
+     */
+    public String zipFiles(UserEntity ue, List<MetaFileEntity> list, String pwd) {
+        rmRepeatMetaFiles(list);
+
+        String downloadPath = pathHelper.getDownloadFullPath();
+        String zipName = StringHelper.YMDHMS2_FORMAT.format(new Date()) + ".zip";
+        String zipFile = downloadPath + File.separator + zipName;
+
+        ZipFile zip = Zip4jHelper.createZipFile(zipFile, pwd);
+        ZipParameters params = Zip4jHelper.getZipParams();
+
+        addMetaFiles(zip, params, list);
+
+        return null;
+    }
+
+    /**
+     * 绉婚櫎閲嶅鐨勫厓鏁版嵁鏂囦欢
+     */
+    private void rmRepeatMetaFiles(List<MetaFileEntity> list) {
+        List<String> guidList = new ArrayList<>();
+
+        int i = 0;
+        while (i < list.size()) {
+            MetaFileEntity entity = list.get(i);
+            if (guidList.contains(entity.getGuid())) {
+                list.remove(i);
+                continue;
+            }
+
+            guidList.add(entity.getGuid());
+            i++;
+        }
+    }
+
+    /**
+     * 娣诲姞鍏冩暟鎹枃浠惰嚦Zip鍖�
+     */
+    private void addMetaFiles(ZipFile zip, ZipParameters params, List<MetaFileEntity> list) {
+        String uploadPath = pathHelper.getConfig().getUploadPath();
+        for (MetaFileEntity entity : list) {
+            String filePath = uploadPath + File.separator + entity.getPath();
+            File file = new File(filePath);
+            File newFile = new File(filePath.replace(entity.getGuid(), entity.getName()));
+
+            try {
+                file.renameTo(newFile);
+                zip.addFile(newFile, params);
+            } catch (Exception ex) {
+                log.error(ex.getMessage(), ex);
+            } finally {
+                newFile.renameTo(file);
+            }
+        }
+    }
 }

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