附件上传预览，配置限制更新

src/main/java/com/huoran/iasf/common/config/NonStaticResourceHttpRequestConfig.java

@@ -0,0 +1,22 @@
+package com.huoran.iasf.common.config;
+
+import org.springframework.core.io.FileSystemResource;
+import org.springframework.core.io.Resource;
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.resource.ResourceHttpRequestHandler;
+
+import javax.servlet.http.HttpServletRequest;
+import java.nio.file.Path;
+
+@Component
+public class NonStaticResourceHttpRequestConfig extends ResourceHttpRequestHandler {
+
+    public final static String ATTR_FILE = "NON-STATIC-FILE";
+
+    @Override
+    protected Resource getResource(HttpServletRequest request) {
+        final Path filePath = (Path) request.getAttribute(ATTR_FILE);
+        return new FileSystemResource(filePath);
+    }
+
+}

src/main/java/com/huoran/iasf/controller/SysFilesController.java

@@ -6,6 +6,7 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
+import com.huoran.iasf.common.config.NonStaticResourceHttpRequestConfig;
 import com.huoran.iasf.common.utils.R;
 import com.huoran.iasf.entity.SysFilesEntity;
 import com.huoran.iasf.service.SysFilesService;
@@ -15,14 +16,21 @@ import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import io.swagger.annotations.ApiParam;
 import org.apache.shiro.authz.annotation.RequiresPermissions;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.servlet.resource.ResourceHttpRequestHandler;
 
 import javax.annotation.Resource;
+import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.List;
 
 
@@ -82,7 +90,7 @@ public class SysFilesController {
 
     @ApiOperation(value = "文件预览")
     @GetMapping("/preview/{id}")
-    public void preview(@PathVariable String id, HttpServletRequest req, HttpServletResponse res) {
+    public void preview(@PathVariable String id, HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
         sysFilesService.preview(id, req, res);
     }
 

src/main/java/com/huoran/iasf/service/SysFilesService.java

@@ -6,8 +6,11 @@ import com.huoran.iasf.vo.UEditorResultVO;
 import com.huoran.iasf.vo.req.FileParameters;
 import org.springframework.web.multipart.MultipartFile;
 
+import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import java.io.FileNotFoundException;
+import java.io.IOException;
 import java.util.List;
 
 /**
@@ -23,7 +26,7 @@ public interface SysFilesService extends IService<SysFilesEntity> {
 
     void removeByIdsAndFiles(List<String> ids);
 
-    void preview(String id, HttpServletRequest req, HttpServletResponse res);
+    void preview(String id, HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException;
 
     void download(String id, HttpServletRequest req, HttpServletResponse res);
 }

src/main/java/com/huoran/iasf/service/impl/SysFilesServiceImpl.java

@@ -3,8 +3,10 @@ package com.huoran.iasf.service.impl;
 import cn.hutool.core.io.FileUtil;
 import cn.hutool.core.io.IoUtil;
 import cn.hutool.core.util.ObjectUtil;
+import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.huoran.iasf.common.config.FileUploadProperties;
+import com.huoran.iasf.common.config.NonStaticResourceHttpRequestConfig;
 import com.huoran.iasf.common.exception.BusinessException;
 import com.huoran.iasf.common.exception.code.BaseResponseCode;
 import com.huoran.iasf.common.utils.DateUtils;
@@ -14,6 +16,7 @@ import com.huoran.iasf.service.SysFilesService;
 import com.huoran.iasf.vo.UEditorResultVO;
 import com.huoran.iasf.vo.req.FileParameters;
 import org.apache.commons.io.FileUtils;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.http.MediaType;
 import org.springframework.stereotype.Service;
@@ -22,6 +25,7 @@ import org.springframework.web.context.request.ServletRequestAttributes;
 import org.springframework.web.multipart.MultipartFile;
 
 import javax.annotation.Resource;
+import javax.servlet.ServletException;
 import javax.servlet.ServletOutputStream;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
@@ -29,6 +33,10 @@ import java.io.*;
 import java.net.InetAddress;
 import java.net.NetworkInterface;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.Date;
 import java.util.Enumeration;
 import java.util.List;
@@ -49,6 +57,9 @@ public class SysFilesServiceImpl extends ServiceImpl<SysFilesMapper, SysFilesEnt
     @Resource
     private FileUploadProperties fileUploadProperties;
 
+    @Autowired
+    private NonStaticResourceHttpRequestConfig nonStaticResourceHttpRequestConfig;
+
     @Override
     public UEditorResultVO saveFile(MultipartFile file, FileParameters fileParameters) {
         if (ObjectUtil.isEmpty(file) || file.getSize() <= 0) {
@@ -180,26 +191,45 @@ public class SysFilesServiceImpl extends ServiceImpl<SysFilesMapper, SysFilesEnt
 
 
     @Override
-    public void preview(String id, HttpServletRequest req, HttpServletResponse res) {
+    public void preview(String id, HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
         if (id != null) {
             SysFilesEntity entity = this.getById(id);
             String path = entity.getFilePath();
             res.setContentLength(entity.getFileSize());
-            File file = new File(path);
+
-            byte[] buffer = FileUtil.readBytes(path);
+//            if (entity.getFormat().equals("mp4")){
-            if (file.exists()) {
+                //保存视频磁盘路径
-                try {
+                Path filePath = Paths.get(path);
-                    //设置contentType
+
-                    res.setContentType(MediaType.ALL_VALUE);
+                //获取视频的类型，比如是MP4这样
-                    res.setCharacterEncoding("UTF-8");
+                File file = new File(path);
-                    //获取outputStream
+                String mimeType = Files.probeContentType(filePath);
-                    ServletOutputStream outputStream = res.getOutputStream();
+                if (StrUtil.isNotEmpty(mimeType)) {
-                    //输出
+                    //判断类型，根据不同的类型文件来处理对应的数据
-                    IoUtil.write(outputStream, true, buffer);
+                    res.setContentType(mimeType);
-                } catch (Exception e) {
+                    res.addHeader("Content-Length", "" + file.length());
-                    log.error(e.getMessage(), e);
                 }
-            }
+                //转换视频流部分
+                req.setAttribute(NonStaticResourceHttpRequestConfig.ATTR_FILE, filePath);
+                nonStaticResourceHttpRequestConfig.handleRequest(req, res);
+//            }else {
+//                File file = new File(path);
+//                byte[] buffer = FileUtil.readBytes(path);
+//                if (file.exists()) {
+//                    try {
+//                        //设置contentType
+//                        res.setContentType(MediaType.ALL_VALUE);
+//                        res.setCharacterEncoding("UTF-8");
+//                        //获取outputStream
+//                        ServletOutputStream outputStream = res.getOutputStream();
+//                        //输出
+//                        IoUtil.write(outputStream, true, buffer);
+//                    } catch (Exception e) {
+//                        log.error(e.getMessage(), e);
+//                    }
+//                }
+//            }
+
         }
     }
 

src/main/resources/application-prod.yml

@@ -27,7 +27,7 @@ file:
   path: D:/files/ #windows
   #path: /data/files/ #linux
   #文件预览、下载的url, 末尾请勿加 /
-  url: http://localhost:10000/files
+  url: :10000/iasf/sysFiles/preview/
 
 knife4j:
   production: true #生成环境禁用查看文档

src/main/resources/application-test.yml

@@ -6,9 +6,9 @@ spring:
       datasource:
         master:
           username: root
-          password: 123456
+          password: HuoRan@2021
           driver-class-name: com.mysql.cj.jdbc.Driver
-          url: jdbc:mysql://localhost:3306/iasf?useUnicode=true&useSSL=false&characterEncoding=utf8&serverTimezone=GMT%2b8
+          url: jdbc:mysql://139.9.47.170:3306/iasf?useUnicode=true&useSSL=false&characterEncoding=utf8&serverTimezone=GMT%2b8
   redis:
     host: localhost # Redis服务器地址
     database: 0 # Redis数据库索引（默认为0）
@@ -27,4 +27,4 @@ file:
   path: D:/files/ #windows
   #path: /data/files/ #linux
   #文件预览、下载的url, 末尾请勿加 /
-  url: http://localhost:10000/files
+  url: :10000/iasf/sysFiles/preview/

src/main/resources/application.yml

@@ -19,7 +19,7 @@ spring:
   # 文件大小限制
   servlet:
     multipart:
-      max-file-size: 10MB
+      max-file-size: 100MB
       max-request-size: 100MB
   # redis token信息
   redis: