【新增】下载文件，解压zip，获取文件路径

exam-module-judgement/exam-module-judgement-biz/src/main/java/pc/exam/pp/module/judgement/controller/admin/Gcc/GccController.java

@@ -0,0 +1,4 @@
+package pc.exam.pp.module.judgement.controller.admin.Gcc;
+
+public class GccController {
+}

exam-module-judgement/exam-module-judgement-biz/src/main/java/pc/exam/pp/module/judgement/controller/admin/GccController.java

@@ -1,4 +0,0 @@
-package pc.exam.pp.module.judgement.controller.admin;
-
-public class GccController {
-}

exam-module-judgement/exam-module-judgement-biz/src/main/java/pc/exam/pp/module/judgement/controller/admin/autoTools/AutoToolsController.java

@@ -0,0 +1,4 @@
+package pc.exam.pp.module.judgement.controller.admin.autoTools;
+
+public class AutoToolsController {
+}

exam-module-judgement/exam-module-judgement-biz/src/main/java/pc/exam/pp/module/judgement/controller/admin/autoTools/vo/StudentUploadFileZipReqVo.java

@@ -0,0 +1,19 @@
+package pc.exam.pp.module.judgement.controller.admin.autoTools.vo;
+
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+@Data
+public class StudentUploadFileZipReqVo {
+
+    @Schema(description = "学号")
+    private Long studentId;
+
+    @Schema(description = "试卷号")
+    private String paperId;
+
+    @Schema(description = "上传文件路径")
+    private String filePath;
+
+}

exam-module-judgement/exam-module-judgement-biz/src/main/java/pc/exam/pp/module/judgement/service/auto_tools/AutoToolsService.java

@@ -0,0 +1,26 @@
+package pc.exam.pp.module.judgement.service.auto_tools;
+
+public interface AutoToolsService {
+
+
+    // 文件自动上传
+
+    // Boolean autoFileTools(Long studentId, String paperId);
+
+    /**
+     * 文件下载
+     * @param fileUrl 文件url
+     * @param filePath 要下载的文件路径
+     * @return 下载后的文件path
+     */
+    String downloadStudentFile(String fileUrl, String filePath);
+
+    //
+
+    /**
+     * 解压文件
+     * @param zipFilePath zip文件路径
+     * @return 解压后的目录
+     */
+    String unzipToNamedFolder(String zipFilePath);
+}

exam-module-judgement/exam-module-judgement-biz/src/main/java/pc/exam/pp/module/judgement/service/auto_tools/AutoToolsServiceImpl.java

@@ -0,0 +1,97 @@
+package pc.exam.pp.module.judgement.service.auto_tools;
+
+import org.springframework.stereotype.Service;
+
+import java.io.*;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+
+@Service
+public class AutoToolsServiceImpl implements AutoToolsService{
+
+    @Override
+    public String downloadStudentFile(String fileUrl, String filePath) {
+        try {
+            URL url = new URL(fileUrl);
+            URLConnection connection = url.openConnection();
+
+            String fileName = new File(url.getPath()).getName();
+            File dir = new File(filePath);
+            if (!dir.exists()) dir.mkdirs();
+
+            File saveFile = new File(dir, fileName);
+
+            try (InputStream in = connection.getInputStream();
+                 FileOutputStream out = new FileOutputStream(saveFile)) {
+
+                byte[] buffer = new byte[4096];
+                int bytesRead;
+                while ((bytesRead = in.read(buffer)) != -1) {
+                    out.write(buffer, 0, bytesRead);
+                }
+
+                System.out.println("✅ 下载成功: " + saveFile.getAbsolutePath());
+                return saveFile.getAbsolutePath();
+            }
+        } catch (IOException e) {
+            System.err.println("❌ 下载失败: " + e.getMessage());
+            return null;
+        }
+    }
+
+    @Override
+    public String unzipToNamedFolder(String zipFilePath) {
+        File zipFile = new File(zipFilePath);
+
+        if (!zipFile.exists() || !zipFile.getName().toLowerCase().endsWith(".zip")) {
+            System.err.println("❌ 无效 zip 文件: " + zipFilePath);
+            return null;
+        }
+
+        // 提取 zip 文件名（无扩展）
+        String fileNameNoExt = zipFile.getName().replaceAll("(?i)\\.zip$", "");
+        // 自动拼接系统适配路径
+        File extractDir = new File(zipFile.getParentFile(), fileNameNoExt);
+
+        if (!extractDir.exists()) {
+            extractDir.mkdirs();
+        }
+
+        try (ZipInputStream zis = new ZipInputStream(new FileInputStream(zipFile))) {
+            ZipEntry entry;
+            while ((entry = zis.getNextEntry()) != null) {
+                File outFile = new File(extractDir, entry.getName());
+
+                // 防止 Zip 路径穿越攻击
+                if (!outFile.getCanonicalPath().startsWith(extractDir.getCanonicalPath())) {
+                    throw new IOException("非法路径: " + entry.getName());
+                }
+
+                if (entry.isDirectory()) {
+                    outFile.mkdirs();
+                } else {
+                    File parent = outFile.getParentFile();
+                    if (!parent.exists()) parent.mkdirs();
+
+                    try (FileOutputStream fos = new FileOutputStream(outFile)) {
+                        byte[] buffer = new byte[4096];
+                        int len;
+                        while ((len = zis.read(buffer)) > 0) {
+                            fos.write(buffer, 0, len);
+                        }
+                    }
+                }
+                zis.closeEntry();
+            }
+            System.out.println("✅ 解压完成，目录：" + extractDir.getAbsolutePath());
+            return extractDir.getAbsolutePath();
+
+        } catch (IOException e) {
+            System.err.println("❌ 解压出错: " + e.getMessage());
+            return null;
+        }
+    }
+}