根据url 返回文件流

ruoyi-modules/guoyan-platform/src/main/java/org/dromara/platform/controller/DocumentInfoController.java

@@ -1,26 +1,26 @@
 package org.dromara.platform.controller;
 
-import java.util.List;
-
-import lombok.RequiredArgsConstructor;
 import jakarta.servlet.http.HttpServletResponse;
-import jakarta.validation.constraints.*;
+import jakarta.validation.constraints.NotEmpty;
-import cn.dev33.satoken.annotation.SaCheckPermission;
+import jakarta.validation.constraints.NotNull;
-import org.springframework.web.bind.annotation.*;
+import lombok.RequiredArgsConstructor;
-import org.springframework.validation.annotation.Validated;
-import org.dromara.common.idempotent.annotation.RepeatSubmit;
-import org.dromara.common.log.annotation.Log;
-import org.dromara.common.web.core.BaseController;
-import org.dromara.common.mybatis.core.page.PageQuery;
 import org.dromara.common.core.domain.R;
 import org.dromara.common.core.validate.AddGroup;
 import org.dromara.common.core.validate.EditGroup;
-import org.dromara.common.log.enums.BusinessType;
 import org.dromara.common.excel.utils.ExcelUtil;
-import org.dromara.platform.domain.vo.DocumentInfoVo;
+import org.dromara.common.idempotent.annotation.RepeatSubmit;
+import org.dromara.common.log.annotation.Log;
+import org.dromara.common.log.enums.BusinessType;
+import org.dromara.common.mybatis.core.page.PageQuery;
+import org.dromara.common.mybatis.core.page.TableDataInfo;
+import org.dromara.common.web.core.BaseController;
 import org.dromara.platform.domain.bo.DocumentInfoBo;
+import org.dromara.platform.domain.vo.DocumentInfoVo;
 import org.dromara.platform.service.IDocumentInfoService;
-import org.dromara.common.mybatis.core.page.TableDataInfo;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
 
 /**
  * 文档信息

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/system/SysOssController.java

@@ -105,4 +105,10 @@ public class SysOssController extends BaseController {
         return toAjax(ossService.deleteWithValidByIds(List.of(ossIds), true));
     }
 
+
+    @GetMapping("/urlToStream")
+    public void urlToStream(String url, HttpServletResponse response) throws IOException {
+        ossService.urlToStream(url,response);
+
+    }
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysOssService.java

@@ -77,4 +77,5 @@ public interface ISysOssService {
      */
     Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid);
 
+    void urlToStream(String url, HttpServletResponse response) throws IOException;
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssServiceImpl.java

@@ -36,10 +36,7 @@ import org.springframework.web.multipart.MultipartFile;
 
 import java.io.File;
 import java.io.IOException;
-import java.util.ArrayList;
+import java.util.*;
-import java.util.Collection;
-import java.util.List;
-import java.util.Map;
 
 /**
  * 文件上传 服务层实现
@@ -52,6 +49,8 @@ public class SysOssServiceImpl implements ISysOssService, OssService {
 
     private final SysOssMapper baseMapper;
 
+
+
     /**
      * 查询OSS对象存储列表
      *
@@ -252,6 +251,18 @@ public class SysOssServiceImpl implements ISysOssService, OssService {
         return baseMapper.deleteByIds(ids) > 0;
     }
 
+    @Override
+    public void urlToStream(String url, HttpServletResponse response) throws IOException {
+        LambdaQueryWrapper<SysOss> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.eq(SysOss::getUrl, url);
+        SysOss oss = baseMapper.selectOne(queryWrapper);
+        if (oss == null){
+            response.sendError(HttpServletResponse.SC_NOT_FOUND, "File not found");
+        }else {
+            download(oss.getOssId(), response);
+        }
+    }
+
     /**
      * 桶类型为 private 的URL 修改为临时URL时长为120s
      *