调整项目模块，jodconverter-core重命名为office-plugin。jdocnverter-web重命名为server

server/src/main/java/cn/keking/service/impl/OfficeFilePreviewImpl.java

@@ -0,0 +1,95 @@
+package cn.keking.service.impl;
+
+import cn.keking.config.ConfigConstants;
+import cn.keking.model.FileAttribute;
+import cn.keking.model.ReturnResponse;
+import cn.keking.service.FilePreview;
+import cn.keking.utils.DownloadUtils;
+import cn.keking.service.FilePreviewCommonService;
+import cn.keking.service.OfficeToPdfService;
+import cn.keking.utils.PdfUtils;
+import cn.keking.web.filter.BaseUrlFilter;
+import org.springframework.stereotype.Service;
+import org.springframework.ui.Model;
+import org.springframework.util.StringUtils;
+
+import java.util.List;
+
+/**
+ * Created by kl on 2018/1/17.
+ * Content :处理office文件
+ */
+@Service
+public class OfficeFilePreviewImpl implements FilePreview {
+
+    private final FilePreviewCommonService filePreviewCommonService;
+    private final PdfUtils pdfUtils;
+    private final DownloadUtils downloadUtils;
+    private final OfficeToPdfService officeToPdfService;
+
+    public OfficeFilePreviewImpl(FilePreviewCommonService filePreviewCommonService, PdfUtils pdfUtils, DownloadUtils downloadUtils, OfficeToPdfService officeToPdfService) {
+        this.filePreviewCommonService = filePreviewCommonService;
+        this.pdfUtils = pdfUtils;
+        this.downloadUtils = downloadUtils;
+        this.officeToPdfService = officeToPdfService;
+    }
+
+    public static final String OFFICE_PREVIEW_TYPE_IMAGE = "image";
+    public static final String OFFICE_PREVIEW_TYPE_ALL_IMAGES = "allImages";
+    private static final String FILE_DIR = ConfigConstants.getFileDir();
+
+    @Override
+    public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
+        // 预览Type，参数传了就取参数的，没传取系统默认
+        String officePreviewType = fileAttribute.getOfficePreviewType();
+        String baseUrl = BaseUrlFilter.getBaseUrl();
+        String suffix=fileAttribute.getSuffix();
+        String fileName=fileAttribute.getName();
+        boolean isHtml = suffix.equalsIgnoreCase("xls") || suffix.equalsIgnoreCase("xlsx");
+        String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + (isHtml ? "html" : "pdf");
+        String outFilePath = FILE_DIR + pdfName;
+        // 判断之前是否已转换过，如果转换过，直接返回，否则执行转换
+        if (!filePreviewCommonService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
+            String filePath;
+            ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, null);
+            if (0 != response.getCode()) {
+                model.addAttribute("fileType", suffix);
+                model.addAttribute("msg", response.getMsg());
+                return "fileNotSupported";
+            }
+            filePath = response.getContent();
+            if (StringUtils.hasText(outFilePath)) {
+                officeToPdfService.openOfficeToPDF(filePath, outFilePath);
+                if (isHtml) {
+                    // 对转换后的文件进行操作(改变编码方式)
+                    filePreviewCommonService.doActionConvertedFile(outFilePath);
+                }
+                if (ConfigConstants.isCacheEnabled()) {
+                    // 加入缓存
+                    filePreviewCommonService.addConvertedFile(pdfName, filePreviewCommonService.getRelativePath(outFilePath));
+                }
+            }
+        }
+        if (!isHtml && baseUrl != null && (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType))) {
+            return getPreviewType(model, fileAttribute, officePreviewType, baseUrl, pdfName, outFilePath, pdfUtils, OFFICE_PREVIEW_TYPE_IMAGE);
+        }
+        model.addAttribute("pdfUrl", pdfName);
+        return isHtml ? "html" : "pdf";
+    }
+
+    static String getPreviewType(Model model, FileAttribute fileAttribute, String officePreviewType, String baseUrl, String pdfName, String outFilePath, PdfUtils pdfUtils, String officePreviewTypeImage) {
+        List<String> imageUrls = pdfUtils.pdf2jpg(outFilePath, pdfName, baseUrl);
+        if (imageUrls == null || imageUrls.size() < 1) {
+            model.addAttribute("msg", "office转图片异常，请联系管理员");
+            model.addAttribute("fileType",fileAttribute.getSuffix());
+            return "fileNotSupported";
+        }
+        model.addAttribute("imgurls", imageUrls);
+        model.addAttribute("currentUrl", imageUrls.get(0));
+        if (officePreviewTypeImage.equals(officePreviewType)) {
+            return "officePicture";
+        } else {
+            return "picture";
+        }
+    }
+}