补充代码 10/19 wzq

src/main/java/com/emr/controller/PdfFileIsErrorController.java

@@ -0,0 +1,127 @@
+package com.emr.controller;
+
+import com.emr.entity.Archive_Detail;
+import com.emr.entity.Archive_Detail_Vo;
+import com.emr.entity.OffsetLimitPage;
+import com.emr.service.Archive_DetailService;
+import com.emr.util.PDFCheck;
+import com.emr.util.PdfFileFilter;
+import com.github.pagehelper.Page;
+import com.github.pagehelper.PageHelper;
+import com.lowagie.text.Document;
+import com.lowagie.text.pdf.PdfReader;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.File;
+import java.io.IOException;
+import java.util.*;
+
+@Controller
+public class PdfFileIsErrorController {
+    @Value("${PdfIsError}")
+    private String PdfIsError;
+
+    @Autowired
+    private Archive_DetailService archive_detailService;
+
+    @RequestMapping("toPdfFileIsError")
+    public String toPdfFileIsError(){
+        return "PdfFileIsError";
+    }
+
+    @RequestMapping("selectPdfFileMayError")
+    @ResponseBody
+    public OffsetLimitPage PdfFileMayError(HttpServletRequest request, HttpServletResponse response, Archive_Detail_Vo archive_detail_vo, Integer offset, Integer limit){
+        return archive_detailService.selectPdfPathMayError(archive_detail_vo,offset,limit);
+    }
+
+    @RequestMapping("PdfFileIsError")
+    @ResponseBody
+    public List<String> PdfFileIsError(HttpServletRequest request, HttpServletResponse response, Archive_Detail_Vo archive_detail_vo){
+        List<Archive_Detail> list = archive_detailService.selectPdfPathMayError(archive_detail_vo);
+
+        List<String> errorlist = new ArrayList<>();
+
+        if(list.size()>0) {
+            try {
+                errorlist = CheckPdfFiles(list);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+        return errorlist;
+    }
+
+    /**
+     * 递归得到特定目录下的所有文件
+     */
+    /*public static void getAllPdfFile(String basedir) {
+        File dir = new File(basedir);
+        File[] files = dir.listFiles(new PdfFileFilter());
+        if (files == null)
+            return;
+        for (int i = 0; i < files.length; i++) {
+            if (files[i].isDirectory()) {
+                getAllPdfFile(files[i].getAbsolutePath());
+            } else {
+                pdffiles.add(files[i].getAbsolutePath());
+            }
+
+        }
+
+    }*/
+    /**
+     * 循环检测
+     */
+    public static List<String> CheckPdfFiles(List<Archive_Detail> list) throws Exception {
+        List<String> errordetailid = new ArrayList<>();
+        for (Archive_Detail archiveDetail : list) {
+            boolean flag = false;
+            //循环调用check 检查是否损坏
+            flag = check(archiveDetail.getPdfPath());
+            if(!flag){
+                //若破损 则存入list 返回
+                errordetailid.add(archiveDetail.getId());
+            }
+        }
+        return errordetailid;
+    }
+
+    /**
+     * 利用itext打开pdf文档
+     */
+    public static boolean check(String file) {
+        boolean flag1 = false;
+        int n = 0;
+//        Document document = null;
+        PdfReader reader = null;
+        try {
+            if (StringUtils.isNotBlank(file)){
+                reader = new PdfReader(file);
+//                document = new Document(reader.getPageSize(1));
+//                document.open();
+                n = reader.getNumberOfPages();
+                if (n != 0)
+                    flag1 = true;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }finally {
+            /*if (document!=null){
+                document.close();
+            }*/
+            if (reader!=null){
+                reader.close();
+            }
+        }
+        return flag1;
+
+    }
+}