王先生

pom.xml

@@ -15,6 +15,18 @@
     </properties>
     <dependencies>
         <dependency>
+            <groupId>com.google.zxing</groupId>
+            <artifactId>core</artifactId>
+            <version>3.5.1</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.zxing</groupId>
+            <artifactId>javase</artifactId>
+            <version>3.5.1</version>
+        </dependency>
+
+
+        <dependency>
             <groupId>org.elasticsearch.client</groupId>
             <artifactId>elasticsearch-rest-high-level-client</artifactId>
             <version>7.4.0</version>

src/main/java/com/zhentao/hotel/controller/Hoteldetails_controller.java

@@ -12,6 +12,7 @@ import org.springframework.web.bind.annotation.RestController;
 public class Hoteldetails_controller {
     @Autowired
     private HoteldetailsService service;
+//    查询酒店的详细信息
     @PostMapping("findAll")
     public Result findAll(){
         return Result.OK(service.list(),"查询成功");

src/main/java/com/zhentao/order/controller/QrCodeController.java

@@ -0,0 +1,75 @@
+package com.zhentao.order.controller;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.MultiFormatWriter;
+import com.google.zxing.client.j2se.MatrixToImageWriter;
+import com.google.zxing.common.BitMatrix;
+import org.springframework.web.bind.annotation.*;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.util.Base64;
+import java.util.HashMap;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api/qrcode")
+public class QrCodeController {
+
+    // 生成带用户数据的二维码接口
+    @PostMapping("/generate")
+    public Map<String, Object> generateQrCode(@RequestBody UserData userData) {
+        Map<String, Object> result = new HashMap<>();
+        try {
+            // 1. 处理用户数据
+            String dataToEncode = userData.toJsonString();
+
+            // 2. 生成二维码图片
+            int width = 300;
+            int height = 300;
+//            使用ZXIng （"Zebra Crossing"）库来生成一个二维码图像
+            BitMatrix bitMatrix = new MultiFormatWriter().encode(dataToEncode, BarcodeFormat.QR_CODE, width, height);
+//            用于将bitMatrix变成图片
+            BufferedImage image = MatrixToImageWriter.toBufferedImage(bitMatrix);
+
+            // 3. 转换为Base64字符串
+//            这是一个输出流
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+//            把对象写入到创建的输出流中
+            ImageIO.write(image, "png", baos);
+//            将字节数组转换成byte数组
+            byte[] imageBytes = baos.toByteArray();
+//            这个字符串可以方便地在文本环境中传输和存储图像数据
+            String base64Image = Base64.getEncoder().encodeToString(imageBytes);
+
+            // 4. 返回结果
+            result.put("success", true);
+            result.put("qrCodeUrl", "data:image/png;base64," + base64Image);
+            result.put("expireTime", System.currentTimeMillis() + 3600000); // 1小时有效期
+        } catch (Exception e) {
+            result.put("success", false);
+            result.put("message", "生成二维码失败: " + e.getMessage());
+        }
+        return result;
+    }
+}
+class UserData {
+    private String userId;
+    private String name;
+    private long timestamp;
+
+    // getters and setters
+    public String getUserId() { return userId; }
+    public void setUserId(String userId) { this.userId = userId; }
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+    public long getTimestamp() { return timestamp; }
+    public void setTimestamp(long timestamp) { this.timestamp = timestamp; }
+
+    // 转换为JSON字符串（简化实现，实际建议用JSON库）
+    public String toJsonString() {
+        return String.format("{\"userId\":\"%s\",\"name\":\"%s\",\"timestamp\":%d}",
+                userId, name, timestamp);
+    }
+}

src/main/java/com/zhentao/touristAttractions/controller/TouristAttractionsController.java

@@ -0,0 +1,20 @@
+package com.zhentao.touristAttractions.controller;
+
+import com.zhentao.touristAttractions.service.TouristattractionsService;
+import com.zhentao.vo.Result;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("touristAttractions")
+public class TouristAttractionsController {
+    @Autowired
+    private TouristattractionsService service;
+//    查询所有的旅游景点
+    @RequestMapping("findAll")
+    public Result findAll() {
+        return service.findAll();
+    }
+
+}