生成自定义二维码

lib/EmergencyService/zdxtEmergencyBootStart/src/main/resources/templates/project/scene/manage.html

@@ -209,12 +209,21 @@
     function generateQRCode() {
         table.set();
         var rows = $.common.isEmpty(table.options.uniqueId) ? $.table.selectFirstColumns() : $.table.selectColumns(table.options.uniqueId);
-        if (rows.length == 0) {
+        if (rows.length === 0) {
             $.modal.alertWarning("请选择一条记录");
             return;
         }
-        $.post(ctx + "small/scene/manage/generateQRCode/", {"guid": rows.join()}, function (req,status ) {
+        if (rows.length > 1) {
-
+            $.modal.alertWarning("请选择一条记录");
+            return;
+        }
+        $.post(ctx + "small/scene/manage/createQrCode/", {"guid": rows.join()}, function (req,status ) {
+            if (req.success) {
+                $.table.refresh();
+                $.modal.alertSuccess("生成二维码成功");
+            }else{
+                $.modal.alertWarning(req.message);
+            }
         })
     }
 

lib/EmergencyService/zdxtEmergencyKnowledgeService/pom.xml

@@ -36,6 +36,17 @@
             <version>1.0</version>
             <scope>compile</scope>
         </dependency>
+        <!-- 二维码 -->
+        <dependency>
+            <groupId>com.google.zxing</groupId>
+            <artifactId>core</artifactId>
+            <version>3.3.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.zxing</groupId>
+            <artifactId>javase</artifactId>
+            <version>3.3.0</version>
+        </dependency>
     </dependencies>
 
 </project>

lib/EmergencyService/zdxtEmergencyKnowledgeService/src/main/java/com/zdxt/knowledge/controller/SceneManageController.java

@@ -17,7 +17,6 @@ import org.springframework.ui.ModelMap;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
-import javax.servlet.http.HttpServletResponse;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
@@ -76,6 +75,15 @@ public class SceneManageController extends BaseController {
         return sceneManageService.generateQRCode(sceneManage);
     }
 
+    /**
+     * 生成动态二维码
+     */
+    @PostMapping(value = "/createQrCode")
+    @ResponseBody
+    public ZDResponse createQrCode(SceneManage sceneManage) {
+        return sceneManageService.createQrCode(sceneManage);
+    }
+
     /**
      * 查看详情
      */

lib/EmergencyService/zdxtEmergencyKnowledgeService/src/main/java/com/zdxt/knowledge/service/ISceneManageService.java

@@ -45,6 +45,8 @@ public interface ISceneManageService {
 
     public ZDResponse generateQRCode(SceneManage sceneManage) throws Exception;
 
+    public ZDResponse createQrCode(SceneManage sceneManage);
+
     /**
      * 新增【请填写功能名称】
      *

lib/EmergencyService/zdxtEmergencyKnowledgeService/src/main/java/com/zdxt/knowledge/service/impl/SceneManageServiceImpl.java

@@ -2,7 +2,6 @@ package com.zdxt.knowledge.service.impl;
 
 
 import cn.hutool.core.bean.BeanUtil;
-import cn.hutool.core.io.IoUtil;
 import cn.hutool.core.util.ObjectUtil;
 import cn.hutool.http.HttpUtil;
 import cn.hutool.json.JSONObject;
@@ -28,22 +27,18 @@ import com.zdxt.knowledge.domain.SceneManage;
 import com.zdxt.knowledge.mapper.SceneManageMapper;
 import com.zdxt.knowledge.service.ISceneManageService;
 import com.zdxt.knowledge.utils.ExcelUtil;
+import com.zdxt.knowledge.utils.QRCodeGeneratorUtil;
 import org.apache.commons.collections.CollectionUtils;
-import org.apache.commons.fileupload.FileItem;
-import org.apache.commons.fileupload.disk.DiskFileItemFactory;
 import org.apache.commons.io.FileUtils;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.io.Resource;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
-import org.springframework.util.FileCopyUtils;
 import org.springframework.web.multipart.MultipartFile;
-import org.springframework.web.multipart.commons.CommonsMultipartFile;
 
-import javax.activation.MimetypesFileTypeMap;
+import java.io.File;
-import javax.servlet.http.HttpServletResponse;
+import java.io.InputStream;
-import java.io.*;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -90,7 +85,6 @@ public class SceneManageServiceImpl implements ISceneManageService {
     }
 
 
-
     /**
      * 查询列表
      *
@@ -101,6 +95,7 @@ public class SceneManageServiceImpl implements ISceneManageService {
     public List<SceneManage> selectSceneManageListAll(SceneManage sceneManage) {
         return sceneManageMapper.selectSceneManageListAll(sceneManage);
     }
+
     /**
      * 查询【请填写功能名称】列表
      *
@@ -119,13 +114,15 @@ public class SceneManageServiceImpl implements ISceneManageService {
     public ZDResponse generateQRCode(SceneManage sceneManage) throws Exception {
 
         String accessToken = getAccessToken();
-        String url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=" + accessToken;
+        String url = "https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=" + accessToken;
 
         // 发送请求参数
         JSONObject paramJson = new JSONObject();
-        paramJson.set("page", "subpkg/role/role");
+        paramJson.set("path", "subpkg/role/role");
-        paramJson.set("check_path", false);
+        //paramJson.set("check_path", false);
         paramJson.set("width", 280);
+        //paramJson.set("auto_color", false);
+        //paramJson.set("is_hyaline", false);
         //scene数据不能中文
         paramJson.set("scene", sceneManage.getGuid());
         //设置小程序码版本
@@ -151,6 +148,33 @@ public class SceneManageServiceImpl implements ISceneManageService {
         return ZDResponse.error("生成二维码失败");
     }
 
+    @Override
+    public ZDResponse createQrCode(SceneManage sceneManage) {
+        try {
+            if (Objects.nonNull(sceneManage.getGuid())) {
+                //这个地方则是调用了工具类第二个方法
+                byte[] qrcode = QRCodeGeneratorUtil.getQRCodeImage(sceneManage.getGuid(), 350, 350);
+                //存入本地数据库
+                File file = File.createTempFile("temp", ".png");
+                FileUtils.writeByteArrayToFile(file, qrcode);
+
+                MultipartFile multipartFile = new LocalFileMultipartFile(file);
+                String uploadPath = fileUploadApi.upload(multipartFile);
+                zdxtFileCommonApi.deleteZdxtFileByIds(sceneManage.getGuid() + "0000");
+                zdxtFileCommonApi.insertZdxtFile(multipartFile, sceneManage.getGuid() + "0000", uploadPath);
+                sceneManage.setUpdateTime(DateUtils.getNowDate());
+                sceneManage.setUrl(uploadPath);
+                sceneManageMapper.updateSceneManage(sceneManage);
+                file.deleteOnExit();
+            } else {
+                return ZDResponse.error("二维码参数不能为空");
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return ZDResponse.success("生成二维码成功");
+    }
+
     public String getAccessToken() {
         String appid = APPID;
         String secret = SECRET;

lib/EmergencyService/zdxtEmergencyKnowledgeService/src/main/java/com/zdxt/knowledge/utils/QRCodeGeneratorUtil.java

@@ -0,0 +1,45 @@
+package com.zdxt.knowledge.utils;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.nio.file.FileSystems;
+import java.nio.file.Path;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.WriterException;
+import com.google.zxing.client.j2se.MatrixToImageWriter;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.qrcode.QRCodeWriter;
+
+public class QRCodeGeneratorUtil {
+
+    /* 高度——height，
+    宽度——width，
+    二维码内容——text（url需要自动跳转前面加上https://）
+    背景图片的路径——filePath*/
+    public static void generateQRCodeImage(String text, int width, int height, String filePath) throws WriterException, IOException {
+        QRCodeWriter qrCodeWriter = new QRCodeWriter();
+
+        BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);
+
+        Path path = FileSystems.getDefault().getPath(filePath);
+
+        MatrixToImageWriter.writeToPath(bitMatrix, "PNG", path);
+
+    }
+    /* 高度——height，
+        宽度——width，
+        二维码内容——text（url需要自动跳转前面加上https://）
+        */
+    public static byte[] getQRCodeImage(String text, int width, int height) throws WriterException, IOException {
+        QRCodeWriter qrCodeWriter = new QRCodeWriter();
+        BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);
+
+        ByteArrayOutputStream pngOutputStream = new ByteArrayOutputStream();
+        MatrixToImageWriter.writeToStream(bitMatrix, "JPG", pngOutputStream);
+        byte[] pngData = pngOutputStream.toByteArray();
+        return pngData;
+    }
+
+}
+

lib/EmergencyService/zdxtEmergencyKnowledgeService/src/main/resources/mapper/SceneManageMapper.xml

@@ -147,6 +147,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         inner join zdxt_file as zd
         on cu.guid = zd.business_id
         <where>
+            <if test="guid != null  and guid != ''">and cu.guid = #{guid}</if>
             <if test="name != null  and name != ''"> and cu.name like concat('%', #{name}, '%')</if>
             <if test="status != null "> and cu.status = #{status}</if>
         </where>