修改

src/main/java/com/ycwl/basic/controller/proxy/ProxyController.java

@@ -0,0 +1,75 @@
+package com.ycwl.basic.controller.proxy;
+
+import com.ycwl.basic.annotation.IgnoreToken;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.Map;
+
+@RestController
+public class ProxyController {
+    @IgnoreToken
+    @RequestMapping(value = "/proxy", method = RequestMethod.GET)
+    public void proxy(@RequestParam(value = "url") String url,
+                      HttpServletRequest request,
+                      HttpServletResponse response) throws IOException {
+        if (!url.startsWith("http://") && !url.startsWith("https://")) {
+            url = "http://" + url; // 或根据业务逻辑选择默认协议
+        }
+
+        // 新增User-Agent检测逻辑
+        String userAgent = request.getHeader("User-Agent");
+        if (userAgent != null && userAgent.contains("Lavf/")) {
+            response.sendRedirect(url);
+            return;
+        }
+        // 创建HTTP连接
+        URL urlObj = new URL(url);
+        HttpURLConnection connection = (HttpURLConnection) urlObj.openConnection();
+
+        // 设置请求方法和请求头
+        connection.setRequestMethod("GET");
+        for (Enumeration<String> headers = request.getHeaderNames(); headers.hasMoreElements();) {
+            String headerName = headers.nextElement();
+            connection.addRequestProperty(headerName, request.getHeader(headerName));
+        }
+
+        // 处理响应
+        int responseCode = connection.getResponseCode();
+        response.setStatus(responseCode);
+
+        // 转发响应头
+        Map<String, List<String>> headerFields = connection.getHeaderFields();
+        for (Map.Entry<String, List<String>> entry : headerFields.entrySet()) {
+            if (entry.getKey() != null) {
+                for (String value : entry.getValue()) {
+                    response.addHeader(entry.getKey(), value);
+                }
+            }
+        }
+
+        // 流式传输响应体
+        try (InputStream inputStream = connection.getInputStream();
+             OutputStream outputStream = response.getOutputStream()) {
+            byte[] buffer = new byte[4096];
+            int bytesRead;
+            while ((bytesRead = inputStream.read(buffer)) != -1) {
+                outputStream.write(buffer, 0, bytesRead);
+            }
+        } catch (IOException e) {
+            return;
+        }
+    }
+}