费用附件下载功能

pom.xml

@@ -60,6 +60,11 @@
             <artifactId>ant</artifactId>
             <version>1.9.4</version>
         </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-web</artifactId>
+            <version>5.3.23</version>
+        </dependency>
     </dependencies>
     <build>
         <finalName>liug</finalName>

src/main/java/com/lsw/controller/ExportController.java

@@ -3,36 +3,34 @@ package com.lsw.controller;
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
 import com.jfinal.kit.PathKit;
+import org.springframework.web.bind.annotation.CrossOrigin;
 
+import javax.servlet.http.HttpServletResponse;
 import java.io.*;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.util.Date;
 import java.text.SimpleDateFormat;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipOutputStream;
 
-import static java.time.LocalDateTime.now;
 
 public class ExportController  extends BaseController{
     private static final int BUFFER_SIZE = 2 * 1024;
 
     public void index() {
-
-        String json="{\n" +
-                "    \"results\": [\n" +
-                "        {\n" +
-                "\t    \"accessToken\": \"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJhdXRoMCIsImV4cCI6MTY0MzM4OTA4MCwidXNlcm5hbWUiOiJfX2pGRlpZdkxJRzZ1RmM3Q2RCTWcifQ.bMVXPUZu6r7aIgdRiItf4j42v6JYtU_Xlhs25f5pYRk\",\n" +
-                "            \"index\": [\n" +
-                "\t    {\"name\":\"159357.jpg\",\"path\":\"http://bpic.588ku.com/element_origin_min_pic/19/03/15/75076c485081d15ed9c224ad3e4ce4a1.jpg\",\"size\":\"39424\",\"userName\":\"SOM\",\"time\":\"2022-12-08 15:41:43\"},\n" +
-                "\t    {\"name\":\"Deel.xls\",\"path\":\"http://192.168.0.251/obpm/uploads/item/2022/1/a218eab9-2b57-437e-9053-f97c95cec9ac.xls\",\"size\":\"39424\",\"userName\":\"SOM\",\"time\":\"2022-12-08 15:41:43\"},\n" +
-                "\t    {\"name\":\"席澳冬简历(1).pdf\",\"path\":\"http://192.168.0.251/obpm/uploads/item/2022/1/d6d6518a-69d4-417f-acdf-15e262801860.pdf\",\"size\":\"150965\",\"userName\":\"SOM\",\"time\":\"2022-12-08 15:41:43\"},\n" +
-                "\t    {\"name\":\"国医大师黄瑾明教授学术信息数据管理平台 评审论证稿（修订模式）.doc\",\"path\":\"http://192.168.0.251/obpm/uploads/item/2022/1/a1b2b180-cd21-49a1-a64f-a331bf0d0842.doc\",\"size\":\"1028103\",\"userName\":\"SOM\",\"time\":\"2022-11-28 16:18:02\"}\n" +
-                "\t    ]\n" +
-                "        }\n" +
-                "    ]\n" +
-                "}\n";
-       // String json= getRawData();
+        System.out.println("zzzzzzzzzzzzzzz");
+//        String json="{\n" +
+//                "    \"results\": [\n" +
+//                "        {\n" +
+//                "\t    \"accessToken\": \"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJhdXRoMCIsImV4cCI6MTY0MzQ1OTkxMywidXNlcm5hbWUiOiJfX2pGRlpZdkxJRzZ1RmM3Q2RCTWcifQ.CTh-0NUgwVjqgeSqk179XThTGC5nKzXkQwEwbIDFyIU\",\n" +
+//                "            \"index\": [\n" +
+//                "\t    {\"name\":\"Deel.xls\",\"path\":\"/uploads/item/2022/1/a218eab9-2b57-437e-9053-f97c95cec9ac.xls\",\"size\":\"39424\",\"userName\":\"SOM\",\"time\":\"2022-12-08 15:41:43\"},\n" +
+//                "\t    {\"name\":\"席澳冬简历(1).pdf\",\"path\":\"/uploads/item/2022/1/d6d6518a-69d4-417f-acdf-15e262801860.pdf\",\"size\":\"150965\",\"userName\":\"SOM\",\"time\":\"2022-12-08 15:41:43\"},\n" +
+//                "\t    {\"name\":\"国医大师黄瑾明教授学术信息数据管理平台 评审论证稿（修订模式）.doc\",\"path\":\"/uploads/item/2022/1/a1b2b180-cd21-49a1-a64f-a331bf0d0842.doc\",\"size\":\"1028103\",\"userName\":\"SOM\",\"time\":\"2022-11-28 16:18:02\"}\n" +
+//                "\t    ]\n" +
+//                "        }\n" +
+//                "    ]\n" +
+//                "}\n";
+        String json= getRawData();
         //这个属于发起请求并获取json数据（得引入hutool）
         //String str = HttpUtil.createGet(url).execute().body();
         //转化请求的 json 数据
@@ -49,8 +47,8 @@ public class ExportController  extends BaseController{
             for (int j = 0; j < index.size(); j++) {
                 //获取 title，下面的参数获取以此类推
                 String name = index.getJSONObject(j).getString("name");
-                //String path = "http://192.168.0.251/obpm"+ index.getJSONObject(j).getString("path");
-                String path = index.getJSONObject(j).getString("path");
+                String path = "http://192.168.0.251/obpm"+ index.getJSONObject(j).getString("path");
+                //String path = index.getJSONObject(j).getString("path");
                 //将文件保存到相对路径文件夹，文件夹名称以yyyyMMddhhmmss命名
                 downLoadFromUrl(path, name, PathKit.getWebRootPath()+"/download/"+sdf.format(dt)+"/",accessToken);
             }
@@ -59,9 +57,9 @@ public class ExportController  extends BaseController{
 
         // 待压缩的文件路径
         //String fileSourcePath = "/download/";
-         String fileSourcePath = PathKit.getWebRootPath()+ "/download/"+sdf.format(dt)+"/";
+        String fileSourcePath = PathKit.getWebRootPath()+ "/download/"+sdf.format(dt)+"/";
 
-        System.out.println("now--"+now());
+        // System.out.println("now--"+now());
         // 压缩后存放路径
 
         //String zipTargetPath = "/upload/"+sdf.format(dt)+"zip";
@@ -74,9 +72,15 @@ public class ExportController  extends BaseController{
         System.out.printf(flag2 ? "文件打包成功!" : "文件打包失败!");
         // downLoadFromUrl("http://bpic.588ku.com/element_origin_min_pic/19/03/15/75076c485081d15ed9c224ad3e4ce4a1.jpg", "159357.jpg", "D:\\file\\");
 
-        renderFile("http://192.168.0.102:9999/upload/"+sdf.format(dt)+".zip");
-
+        //renderFile("http://192.168.0.102:9999/upload/"+sdf.format(dt)+".zip");
+//        try {
+//            outputFile(sdf.format(dt)+".zip");
+//        } catch (IOException e) {
+//            e.printStackTrace();
+//        }
         System.out.println(" 下载======"+ "http://192.168.0.102:9999/upload/"+sdf.format(dt)+".zip");
+        //render("index.html");
+        renderJson("{'url':'http://192.168.0.102:9999/upload/"+sdf.format(dt)+".zip'}");
     }
     /**
      * 网络Url下载文件
@@ -99,7 +103,7 @@ public class ExportController  extends BaseController{
             InputStream inputStream = conn.getInputStream();
             // 获取字节数组
             byte[] getData = readInputStream(inputStream);
-           // System.out.println(fileName + "getData.length()===" + getData.length);
+            // System.out.println(fileName + "getData.length()===" + getData.length);
             // 文件保存位置
             File saveDir = new File(savePath);
             if (!saveDir.exists()) {
@@ -139,10 +143,6 @@ public class ExportController  extends BaseController{
         return bos.toByteArray();
     }
 
-
-
-
-
     /**
      * 压缩成ZIP
      * @param srcFilePath 压缩文件路径
@@ -150,7 +150,6 @@ public class ExportController  extends BaseController{
      * @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
      * false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
      * @throws Exception 压缩失败会抛出异常
-
      */
 
     public static boolean toZip(String srcFilePath, String tarFilePath, boolean KeepDirStructure) {
@@ -202,7 +201,7 @@ public class ExportController  extends BaseController{
 
         byte[] buf = new byte[BUFFER_SIZE];
         if (sourceFile.isFile()) {
-             // 向zip输出流中添加一个zip实体，构造器中name为zip实体的文件的名字
+            // 向zip输出流中添加一个zip实体，构造器中name为zip实体的文件的名字
             zos.putNextEntry(new org.apache.tools.zip.ZipEntry(name));
             // copy文件到zip输出流中
             int len;
@@ -218,7 +217,7 @@ public class ExportController  extends BaseController{
         } else {
             File[] listFiles = sourceFile.listFiles();
             if (listFiles == null || listFiles.length == 0) {
-            // 需要保留原来的文件结构时,需要对空文件夹进行处理
+                // 需要保留原来的文件结构时,需要对空文件夹进行处理
                 if (KeepDirStructure) {
                     // 空文件夹的处理
                     zos.putNextEntry(new org.apache.tools.zip.ZipEntry(name + "/"));
@@ -230,8 +229,8 @@ public class ExportController  extends BaseController{
                 for (File file : listFiles) {
                     // 判断是否需要保留原来的文件结构
                     if (KeepDirStructure) {
-                    // 注意：file.getName()前面需要带上父文件夹的名字加一斜杠,
-                    // 不然最后压缩包中就不能保留原来的文件结构,即：所有文件都跑到压缩包根目录下了
+                        // 注意：file.getName()前面需要带上父文件夹的名字加一斜杠,
+                        // 不然最后压缩包中就不能保留原来的文件结构,即：所有文件都跑到压缩包根目录下了
                         compress(file, zos, name + "/" + file.getName(), KeepDirStructure);
                     } else {
                         compress(file, zos, file.getName(), KeepDirStructure);
@@ -256,4 +255,59 @@ public class ExportController  extends BaseController{
             }
         }
     }
+    @CrossOrigin
+    public void outputFile(String fileName) throws IOException {
+
+//        File file=new File(filePath);
+//
+//        if( file.exists())  //如果filePath下的文件是存在的
+//
+//        {
+
+
+
+        //renderFile(file,"filename");
+        // renderFile("http://192.168.0.102:9999/upload/20221209060056.zip");
+        // renderFile(PathKit.getWebRootPath()+ "/upload/20221209060056.zip");
+
+// renderFile 中的参数可以是File类变量，输出文件的文件命名
+
+//文件命名（选填 一般是随机数：UUID.randomUUID().toString()+".文件类型"）
+
+//        }
+        String basePath = PathKit.getWebRootPath() +"/upload";
+
+        //获取前台的传递的文件名（包括文件格式，例如"test.jpg"）
+
+
+        //根据根目录和文件名，拼接成完整的file路径
+        String targetPath = basePath+File.separator+fileName;
+        System.out.println("targetPath===="+targetPath);
+        //普通IO流实现下载的功能
+        HttpServletResponse res = getResponse(); //创建response回应
+        res.setContentType("text/html; charset=UTF-8"); //设置编码字符
+        res.setContentType("application/x-msdownload"); //设置内容类型
+        res.setHeader("Content-disposition", "attachment;filename="+fileName);//设置下载的文件名称
+        OutputStream out = null;   //创建页面返回方式为输出流，可弹出下载框
+        try {
+            out = res.getOutputStream();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        //创建输入流读取文件
+        InputStream is = new FileInputStream(targetPath);
+        byte[] Buffer = new byte[4096];
+        int size = 0;
+        while((size=is.read(Buffer)) != -1){
+            out.write(Buffer, 0, size);
+        }
+
+        //关闭和释放流
+        out.flush();
+        out.close();
+        is.close();
+        renderNull();
+    }
+
 }