邮件发送功能实现

ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/file/FileUtils.java

@@ -2,12 +2,16 @@ package org.dromara.common.core.utils.file;
 
 import cn.hutool.core.io.FileUtil;
 import cn.hutool.core.util.IdUtil;
+import cn.hutool.core.util.URLUtil;
+import cn.hutool.http.HttpUtil;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 import lombok.SneakyThrows;
+import org.dromara.common.core.utils.StringUtils;
 
 import java.io.File;
+import java.net.URL;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 
@@ -88,4 +92,46 @@ public class FileUtils extends FileUtil {
         FileUtil.writeUtf8String(data, file);
         return file;
     }
+
+    /**
+     * 将 URL 转换为 File 对象（自动处理本地/网络 URL）
+     *
+     * @param urlStr URL 字符串（支持 file:/// 或 http(s):// 协议）
+     * @return 本地 File 对象（网络 URL 会先下载到临时目录）
+     * @throws Exception 转换失败时抛出异常
+     */
+    public static File convert(String urlStr, String fileName) throws Exception {
+        URL url = URLUtil.url(urlStr);
+
+        // 1. 处理本地文件 URL（file 协议）
+        if ("file".equals(url.getProtocol())) {
+            return new File(url.getPath());
+        }
+        // 2. 处理网络 URL（http/https 等），需先下载到本地
+        else {
+            return downloadToLocal(urlStr, fileName);
+        }
+    }
+
+    /**
+     * 下载网络 URL 到本地临时目录
+     */
+    private static File downloadToLocal(String urlStr, String fileName) {
+        try {
+            // 从 URL 中提取文件名
+            if (StringUtils.isEmpty(fileName)) {
+                fileName = urlStr.substring(urlStr.lastIndexOf("/") + 1);
+            }
+            // 生成临时文件路径（使用系统临时目录）
+            String tempDir = System.getProperty("java.io.tmpdir");
+            String localPath = tempDir + File.separator + fileName;
+
+            // 使用 Hutool 下载文件（支持超时和重试）
+            HttpUtil.downloadFile(urlStr, localPath);
+
+            return new File(localPath);
+        } catch (Exception e) {
+            throw new RuntimeException("URL 下载失败：" + urlStr, e);
+        }
+    }
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/bo/SysDeptOssBo.java

@@ -69,7 +69,6 @@ public class SysDeptOssBo extends BaseEntity {
     /**
      * 是否公开
      */
-    @NotNull(message = "是否公开不能为空", groups = { AddGroup.class, EditGroup.class })
     private Boolean open;
 
     /**

ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FileApproveServiceImpl.java

@@ -9,8 +9,11 @@ import org.dromara.common.core.enums.BusinessStatusEnum;
 import org.dromara.common.core.utils.MapstructUtils;
 import org.dromara.common.core.utils.StreamUtils;
 import org.dromara.common.core.utils.StringUtils;
+import org.dromara.common.core.utils.file.FileUtils;
+import org.dromara.common.mail.utils.MailUtils;
 import org.dromara.common.mybatis.core.mapper.BaseMapperPlus;
 import org.dromara.common.mybatis.service.AbstractBaseService;
+import org.dromara.resource.api.RemoteFileService;
 import org.dromara.workflow.api.domain.RemoteWorkflowService;
 import org.dromara.workflow.api.domain.event.ProcessEvent;
 import org.dromara.workflow.api.domain.event.ProcessTaskEvent;
@@ -20,6 +23,7 @@ import org.dromara.workflow.domain.vo.FileApproveVo;
 import org.dromara.workflow.mapper.FileApproveMapper;
 import org.dromara.workflow.service.IFileApproveService;
 import org.dromara.workflow.utils.QueryUtils;
+import org.dromara.workflow.utils.WorkflowUtils;
 import org.springframework.context.event.EventListener;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -43,6 +47,8 @@ public class FileApproveServiceImpl extends AbstractBaseService<FileApproveVo, F
     private final FileApproveMapper baseMapper;
     @DubboReference
     private final RemoteWorkflowService workflowService;
+    @DubboReference
+    private final RemoteFileService remoteFileService;
 
     @Override
     public BaseMapperPlus<FileApprove, FileApproveVo> mapper() {
@@ -107,6 +113,19 @@ public class FileApproveServiceImpl extends AbstractBaseService<FileApproveVo, F
             fa.setStatus(BusinessStatusEnum.WAITING.getStatus());
         }
         baseMapper.updateById(fa);
+        //审批完成
+        if (StringUtils.equals(processEvent.getStatus(), BusinessStatusEnum.FINISH.getStatus())) {
+            try {
+                //发送邮件
+                Map<String, Object> entity = (Map<String, Object>) WorkflowUtils.getHistoricVariableByBusinessKey(processEvent.getBusinessKey(), "entity");
+                String url = entity.get("fileUrl").toString();
+                String fileName = entity.get("fileName").toString();
+                MailUtils.send(fa.getEmail(), "部门文件下载", "", false, FileUtils.convert(url, fileName));
+            } catch (Exception e) {
+                e.printStackTrace();
+                log.info("邮件发送失败，邮箱{}", fa.getEmail());
+            }
+        }
     }
 
     /**