From ac97a3b69a46115594c29c20fc7f3b742bd50e03 Mon Sep 17 00:00:00 2001
From: sjm <2431685932@qq.com>
Date: Sat, 23 Dec 2023 23:59:08 +0800
Subject: [PATCH] =?UTF-8?q?update=20=E4=BA=8C=E7=BB=B4=E7=A0=81?=
MIME-Version: 1.0
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---
 .../service/serviceImpl/QRCServiceImpl.java   |  4 ++
 .../java/com/lovenav/utils/QRCodeUtil.java    | 54 +++++++++++++++++--
 2 files changed, 53 insertions(+), 5 deletions(-)

diff --git a/src/main/java/com/lovenav/service/serviceImpl/QRCServiceImpl.java b/src/main/java/com/lovenav/service/serviceImpl/QRCServiceImpl.java
index b7c1c8e..8a4ca8f 100644
--- a/src/main/java/com/lovenav/service/serviceImpl/QRCServiceImpl.java
+++ b/src/main/java/com/lovenav/service/serviceImpl/QRCServiceImpl.java
@@ -24,6 +24,10 @@ public class QRCServiceImpl implements QRCService{
     public String QR(CollectIconList collect) throws Exception {
         String logoPath ="src/main/resources/static/logo/NAV.png";
         String destPath = "src/main/resources/static/qr";
+        String savePath = "src/main/resources/static/icon";
+//        将icon下载到本地并存储本地路径
+        String icon_url = QRCodeUtil.downloadPicture(collect.getIcon_url(),savePath);
+        collect.setIcon_url(icon_url);
 //        通过传入collect的url_id查找相同网址图片列表
 //        List<CollectIconList> collectIconList = collectIconListDao.selectByUrlid(collect.getUrl_id());
 
diff --git a/src/main/java/com/lovenav/utils/QRCodeUtil.java b/src/main/java/com/lovenav/utils/QRCodeUtil.java
index 57c0896..d462fcb 100644
--- a/src/main/java/com/lovenav/utils/QRCodeUtil.java
+++ b/src/main/java/com/lovenav/utils/QRCodeUtil.java
@@ -1,5 +1,6 @@
 package com.lovenav.utils;
 
+import com.alibaba.fastjson.JSON;
 import com.google.zxing.*;
 import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
 import com.google.zxing.common.BitMatrix;
@@ -15,6 +16,8 @@ import java.awt.*;
 import java.awt.geom.RoundRectangle2D;
 import java.awt.image.BufferedImage;
 import java.io.*;
+import java.net.HttpURLConnection;
+import java.net.URL;
 import java.util.HashMap;
 import java.util.Hashtable;
 import java.util.Map;
@@ -381,13 +384,54 @@ public class QRCodeUtil {
         return encoder.encodeToString(data);
     }
 
+    /**
+     * 根据图片url下载图片到本地
+     * @param imageUrl
+     * @param savePath
+     * @throws IOException
+     */
+    public static String downloadPicture(String imageUrl, String savePath) throws IOException {
+        URL url = new URL(imageUrl);
+        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+        connection.setRequestMethod("GET");
+        connection.connect();
+
+        int responseCode = connection.getResponseCode();
+        if (responseCode == HttpURLConnection.HTTP_OK) {
+            BufferedInputStream in = new BufferedInputStream(connection.getInputStream());
+            FileOutputStream out = new FileOutputStream(new File(savePath));
+
+            byte[] buffer = new byte[1024];
+            int bytesRead;
+            while ((bytesRead = in.read(buffer)) != -1) {
+                out.write(buffer, 0, bytesRead);
+            }
+//            能够返回本地地址前提
+            URL url2 = new URL(imageUrl);
+            BufferedImage image = ImageIO.read(url2);
+            String file = new Random().nextInt(99999999)+".jpg";
+            ImageIO.write(image, FORMAT_NAME, new File(savePath+"/"+file));
+
+//            下载完成，关闭输入输出流
+            in.close();
+            out.close();
+            connection.disconnect();
+            System.out.println("图片下载成功，保存路径：" + savePath);
+//            返回本地地址
+            return savePath+"/"+file;
+        }
+        else {
+            System.out.println("无法下载图片，响应码：" + responseCode);
+            return JSON.toJSONString("responseCode");
+        }
+    }
 
     public static void main(String[] args) throws Exception {
-        String text = "https://www.baidu.com";  //这里设置自定义网站url
-        String logoPath ="src/main/resources/static/logo/NAV.png";
-        String destPath = "src/main/resources/static/qr";
-        String url = QRCodeUtil.encode(text, logoPath, destPath, true);
-        QRCodeUtil.ImageToBase64("src/main/resources/static/qr/44672405.jpg");
+//        String text = "https://www.baidu.com";  //这里设置自定义网站url
+//        String logoPath ="src/main/resources/static/logo/NAV.png";
+//        String destPath = "src/main/resources/static/qr";
+//        String url = QRCodeUtil.encode(text, logoPath, destPath, true);
+//        QRCodeUtil.ImageToBase64("src/main/resources/static/qr/44672405.jpg");
 //        System.out.println(url);
 //        String base64 = getBase64(url);
 //        System.out.println(base64);