增加文件预览功能

td-service/td-apps/src/main/java/com/minto/web/td/TdFileController.java

@@ -5,7 +5,10 @@
 
 package com.minto.web.td;
 
+import cn.hutool.http.HttpRequest;
+import cn.hutool.http.HttpResponse;
 import com.documents4j.api.DocumentType;
+import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.minto.app.tc.knowledge.enums.KmEnum;
 import com.minto.app.tc.knowledge.manager.IKnowledgeManager;
@@ -18,6 +21,7 @@ import com.minto.app.space.util.SpaceFileUtil;
 import com.minto.app.td.base.beans.http.ResponseBean;
 import com.minto.app.td.base.manager.ITdBaseManager;
 import com.minto.core.common.SystemEnvironment;
+import com.minto.core.common.SystemProperties;
 import com.minto.td.token.ITokenProcessorManager;
 import com.minto.app.td.base.util.TDUtil;
 import com.minto.td.token.TokenProcessor;
@@ -775,49 +779,46 @@ public class TdFileController extends TdBaseController {
     @ResponseBody
     @Operation(summary = "word 转 pdf ")
     @GetMapping("/showWord")
-    public ModelAndView showWord(HttpServletRequest request, HttpServletResponse response)
-            throws BusinessException{
-        InputStream is = null;
-        try{
-            ISpaceManager manager = AppContext.getBean(ISpaceManager.class);
-            String fileId = ReqUtil.getString(request, "fileId");
-            if(StringUtil.isNotEmpty(fileId)){
-                Long fid = takeFileId(fileId);//得到文件id
-                SpaceFileBO bo = manager.findSpaceFileBO(fid);
-                String wordFilePath = bo.getFile().getPath();
-                String fileName = bo.getSpaceFileBean().getFileName()
-                        .replace(bo.getSpaceFileBean().getFileType(), "pdf");
-                String pdfFilePath = wordFilePath.replace(fileId, fileName);
-                String fileType = bo.getSpaceFileBean().getFileType();
-                if("docx".equals(fileType)){
-                    Docx4jOfficeFileToPDF.docxToPdf(wordFilePath, pdfFilePath, DocumentType.DOCX);
-                } else if("doc".equals(fileType)){
-                    Docx4jOfficeFileToPDF.docxToPdf(wordFilePath, pdfFilePath, DocumentType.DOC);
-                } else if("xlsx".equals(fileType)){
-                    Docx4jOfficeFileToPDF.xlsxToPdf(wordFilePath, pdfFilePath, DocumentType.XLSX);
-                } else if("xls".equals(fileType)){
-                    Docx4jOfficeFileToPDF.xlsxToPdf(wordFilePath, pdfFilePath, DocumentType.XLS);
-                } else if("pptx".equals(fileType) || "ppt".equals(fileType)){
-                    Docx4jOfficeFileToPDF.pptToPdf(bo.getFile(), wordFilePath, pdfFilePath);
-                }else if("pdf".equals(fileType)){
-                    pdfFilePath = bo.getFile().getPath();
-                }
-                //获取到的转换后的pdf路径
-                File previewFile = new File(pdfFilePath);
-                is = new FileInputStream(previewFile);
-                response.setContentType(SpaceEnum.MimeTypeEnum.pdf.getDes());
-                response.setHeader("Content-disposition",
-                        "inline;filename=\"" + URLEncoder.encode(fileName, StandardCharsets.UTF_8) + "\"");
-                SystemUtil.writeStream(is, response.getOutputStream());
-            }
-        } catch(Exception e){
-            log.error(ExceptionUtil.printExceptionStackTrace(e));
+    public void showWord(HttpServletRequest request, HttpServletResponse response) throws IOException{
+        List<String> onShowTypes = Lists.newArrayList();
+        onShowTypes.addAll(Arrays.asList(KmEnum.ArcSummaryTypeEnum.Excel.getFtype().split(",")));
+        onShowTypes.addAll(Arrays.asList(KmEnum.ArcSummaryTypeEnum.Word.getFtype().split(",")));
+        onShowTypes.addAll(Arrays.asList(KmEnum.ArcSummaryTypeEnum.PPT.getFtype().split(",")));
+        onShowTypes.addAll(Arrays.asList(KmEnum.ArcSummaryTypeEnum.Pdf.getFtype().split(",")));
 
-        } finally{
-            if(is != null){
-                SystemUtil.closeAll(is);
-            }
+
+        ISpaceManager manager = AppContext.getBean(ISpaceManager.class);
+        String fileId = ReqUtil.getString(request, "fileId");
+        if(StringUtil.isEmpty(fileId)){
+            return;
         }
-        return null;
+        //得到文件id
+        Long fid = takeFileId(fileId);
+        SpaceFileBO bo = manager.findSpaceFileBO(fid);
+        String wordFilePath = bo.getFile().getPath();
+        String fileName = bo.getSpaceFileBean().getFileName().replace(bo.getSpaceFileBean().getFileType(), "pdf");
+        String pdfFilePath = wordFilePath.replace(fileId, fileName);
+        String fileType = bo.getSpaceFileBean().getFileType();
+        if(!onShowTypes.contains(fileType)){
+            return;
+        }
+        if(KmEnum.ArcSummaryTypeEnum.Pdf.getFtype().contains(fileType)){
+            response.setContentType(SpaceEnum.MimeTypeEnum.pdf.getDes());
+            response.setHeader("Content-disposition",
+                    "inline;filename=\"" + URLEncoder.encode(fileName, StandardCharsets.UTF_8) + "\"");
+            SystemUtil.writeStream(bo.getStreamable().openInputStream(), response.getOutputStream());
+            return;
+        }
+        String url = SystemProperties.getInstance().getProperty("officeOnlineShow.url");
+        if(StringUtil.isNotEmpty(url)){
+            // 发送POST请求并携带文件
+            HttpResponse res =
+                    HttpRequest.post(url + "/apis/office/toPdf").form("file", bo.getFile()).form("fileType", fileType).execute();
+            response.setContentType(SpaceEnum.MimeTypeEnum.pdf.getDes());
+            response.setHeader("Content-disposition",
+                    "inline;filename=\"" + URLEncoder.encode(fileName, StandardCharsets.UTF_8) + "\"");
+            SystemUtil.writeStream(res.bodyStream(), response.getOutputStream());
+        }
+
     }
 }

tip-front/src/main/java/com/minto/web/tc/FileController.java

@@ -18,6 +18,7 @@ import com.minto.app.space.manager.ISpaceManager;
 import com.minto.app.task.util.TaskByTypeUtil;
 import com.minto.app.tc.knowledge.enums.KmEnum;
 import com.minto.core.common.AppContext;
+import com.minto.core.common.SystemProperties;
 import com.minto.core.util.*;
 import com.minto.tip.common.exceptions.BusinessException;
 import org.hibernate.criterion.Criterion;
@@ -192,7 +193,8 @@ public class FileController {
             if(fileBean == null){
                 throw new BusinessException("文件不存在");
             }
-            if (onShowTypes.contains(fileBean.getFileType())) {
+            String property = SystemProperties.getInstance().getProperty("officeOnlineShow.url");
+            if(onShowTypes.contains(fileBean.getFileType()) && StringUtil.isNotEmpty(property)){
                 result.put("onlineShow", "/td/file/showWord?fileId=" + fileId.toString());
             }
             result.put("state", "success");