'commit'

src/main/java/com/dsideal/QingLong/YunXiao/Controller/YunXiaoController.java

@@ -1,5 +1,6 @@
 package com.dsideal.QingLong.YunXiao.Controller;
 
+import cn.hutool.core.io.FileUtil;
 import com.dsideal.QingLong.Interceptor.EmptyInterface;
 import com.dsideal.QingLong.Interceptor.IsLoginInterface;
 import com.dsideal.QingLong.Render.ImageRender;
@@ -15,9 +16,15 @@ import com.jfinal.ext.interceptor.POST;
 import com.jfinal.kit.Kv;
 import com.jfinal.plugin.activerecord.Page;
 import com.jfinal.plugin.activerecord.Record;
+import org.apache.pdfbox.Loader;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDDocumentInformation;
 
 import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
 import java.io.File;
+import java.io.OutputStream;
+import java.net.URLEncoder;
 import java.util.List;
 import java.util.UUID;
 
@@ -108,26 +115,48 @@ public class YunXiaoController extends Controller {
     /**
      * 课程建设统计报表导出
      */
-    // http://10.10.21.20:9000/QingLong/yx/LessonConstructionExportExcel
+    // http://10.10.21.20:9000/QingLong/yx/LessonConstructionExportExcel?type_id=2
     @Before(GET.class)
-    public void LessonConstructionExportExcel() {
+    public void LessonConstructionExportExcel(int type_id) throws Exception {
         List<Record> list1 = ym.LessonConstructionInfoByStageSubject();
         List<Record> list2 = ym.LessonConstructionInfoByStageSubjectBook();
         List<Record> list3 = ym.previewRank();
 
+        //1、生成Excel
         YunXiaoExportExcelUtil exporter = new YunXiaoExportExcelUtil();
         //使用guid生成一个临时文件名，然后拼接到tmpDir后面，生成完整的临时文件路径
         //文件上传路径
         String fileName = UUID.randomUUID() + ".xlsx";
-        String tmpFile = CommonUtil.basePath + File.separator + fileName;
-        exporter.LessonConstructionExportExcel(tmpFile, list1, list2, list3);
+        String excelPath = CommonUtil.basePath + File.separator + fileName;
+        exporter.LessonConstructionExportExcel(excelPath, list1, list2, list3);
 
-        //提供文件路径
-        Kv kv = Kv.create();
-        kv.set("success", true);
-        kv.set("message", "生成成功！");
-        kv.set("url", CommonUtil.getServerUrl(getRequest()) + "/Excel/" + fileName);
-        renderJson(kv);
+        //2、提供EXCEL
+        //文件名称
+        String excel_filename = "课程建设情况.xlsx";
+        String pdfName = "课程建设情况.pdf";
+        if (type_id < 2) {
+            renderFile(new File(excelPath), excel_filename);
+            return;
+        }
+        //3、提供pdf预览
+        String pdfPath = excelPath.replace(".xlsx", ".pdf");
+        AsposeUtil.xls2pdf(excelPath, pdfPath);
+
+        //提供带中文文件名的pdf流
+        HttpServletResponse response = getResponse();
+        response.reset();
+        response.setContentType("application/pdf;charset=UTF-8");
+        response.setHeader("Content-Disposition", "inline;filename=" + URLEncoder.encode(pdfName, "UTF-8"));//这里的名字并不起作用
+        OutputStream out = response.getOutputStream();
+        PDDocument document = Loader.loadPDF(FileUtil.readBytes(pdfPath)); //加载pdf
+        PDDocumentInformation info = document.getDocumentInformation(); //获得文档属性对象
+        //对比原来的代码，就是在文件流写入响应体之前，经过一下pdfbox，修改标题属性，然后pdfbox的save方法可以直接写入到响应体中。
+        info.setTitle(pdfName); //修改标题属性  这个标题会被展示
+        document.setDocumentInformation(info);
+        document.save(out); //修改完直接输出到响应体中
+        document.close();
+        out.close();
+        renderNull();
     }
 
     /**