'commit'

pom.xml

@@ -82,6 +82,13 @@
             <artifactId>cos</artifactId>
             <version>2022.2</version>
         </dependency>
+        <!--生成PDF时，写入中文名-->
+        <dependency>
+            <groupId>org.apache.pdfbox</groupId>
+            <artifactId>pdfbox</artifactId>
+            <version>2.0.27</version>
+        </dependency>
+
         <dependency>
             <groupId>com.github.icecooly</groupId>
             <artifactId>FastHttpClient</artifactId>

src/main/java/com/dsideal/QingLong/Collect/Controller/CollectController.java

@@ -23,13 +23,18 @@ import com.jfinal.kit.StrKit;
 import com.jfinal.plugin.activerecord.Page;
 import com.jfinal.plugin.activerecord.Record;
 import com.jfinal.upload.UploadFile;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDDocumentInformation;
 import org.apache.poi.openxml4j.util.ZipSecureFile;
 import org.apache.poi.ss.usermodel.IndexedColors;
 import org.apache.poi.xssf.usermodel.XSSFCell;
 import org.apache.poi.xssf.usermodel.XSSFSheet;
 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 
+import javax.servlet.ServletOutputStream;
+import javax.servlet.http.HttpServletResponse;
 import java.io.*;
+import java.net.URLEncoder;
 import java.text.ParseException;
 import java.util.*;
 
@@ -800,6 +805,7 @@ public class CollectController extends Controller {
 
         //文件名称
         String excel_filename = job_name + "【" + bureau_name + "】.xlsx";
+        String pdfName = job_name + "【" + bureau_name + "】";
 
         //1、找到upload_excel_filename_user
         Record record = cm.viewFilledJob(job_id, bureau_id);
@@ -827,13 +833,20 @@ public class CollectController extends Controller {
         if (type_id == 2) {
             String pdfPath = excelPath.replace(".xlsx", ".pdf");
             AsposeUtil.xls2pdf(excelPath, pdfPath);
-            /**
-             * 解决java.io.IOException: UT010029: Stream is closed报错
-             * 由于HttpServlet的request和response里的流都只能读写一次，关掉就没有了, 所以不能使用该方法
-             */
-            OutputStream outputStream = getResponse().getOutputStream();
-            outputStream.write(FileUtil.readBytes(pdfPath));
-            outputStream.flush();
+
+            //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 = PDDocument.load(FileUtil.readBytes(pdfPath)); //加载pdf
+            PDDocumentInformation info = document.getDocumentInformation(); //获得文档属性对象
+            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();
         }
     }