feat: support spring response body writer

generator/src/main/java/com/reajason/javaweb/probe/generator/response/ResponseBodyGenerator.java

@@ -67,6 +67,8 @@ public class ResponseBodyGenerator extends ByteBuddyShellGenerator<ResponseBodyC
 
     private Class<?> getWriterClass() {
         switch (probeContentConfig.getServer()) {
+            case Server.SpringWebMvc:
+                return SpringWebMvcWriter.class;
             case Server.Jetty:
                 return JettyWriter.class;
             case Server.Tomcat:

generator/src/main/java/com/reajason/javaweb/probe/payload/response/SpringWebMvcWriter.java

@@ -0,0 +1,81 @@
+package com.reajason.javaweb.probe.payload.response;
+
+import java.io.PrintWriter;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+/**
+ * @author ReaJason
+ * @since 2025/11/11
+ */
+public class SpringWebMvcWriter {
+
+    public SpringWebMvcWriter() {
+        try {
+            ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
+            Object requestAttributes = invokeMethod(classLoader.loadClass("org.springframework.web.context.request.RequestContextHolder"), "getRequestAttributes", null, null);
+            Object request = invokeMethod(requestAttributes, "getRequest", null, null);
+            Object response = invokeMethod(requestAttributes, "getResponse", null, null);
+            String data = getDataFromReq(request);
+            if (data != null && !data.isEmpty()) {
+                PrintWriter writer = (PrintWriter) invokeMethod(response, "getWriter", null, null);
+                try {
+                    writer.write(run(data));
+                } catch (Throwable e) {
+                    e.printStackTrace(writer);
+                }
+                writer.flush();
+                writer.close();
+                return;
+            }
+
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+    }
+
+    private String getDataFromReq(Object request) throws Exception {
+        return null;
+    }
+
+    private String run(String data) throws Exception {
+        return null;
+    }
+
+    @SuppressWarnings("all")
+    public static Object invokeMethod(Object obj, String methodName, Class<?>[] paramClazz, Object[] param) throws Exception {
+        Class<?> clazz = (obj instanceof Class) ? (Class<?>) obj : obj.getClass();
+        Method method = null;
+        while (clazz != null && method == null) {
+            try {
+                if (paramClazz == null) {
+                    method = clazz.getDeclaredMethod(methodName);
+                } else {
+                    method = clazz.getDeclaredMethod(methodName, paramClazz);
+                }
+            } catch (NoSuchMethodException e) {
+                clazz = clazz.getSuperclass();
+            }
+        }
+        if (method == null) {
+            throw new NoSuchMethodException(obj.getClass() + " Method not found: " + methodName);
+        }
+        method.setAccessible(true);
+        return method.invoke(obj instanceof Class ? null : obj, param);
+    }
+
+    @SuppressWarnings("all")
+    public static Object getFieldValue(Object obj, String name) throws Exception {
+        Class<?> clazz = obj.getClass();
+        while (clazz != Object.class) {
+            try {
+                Field field = clazz.getDeclaredField(name);
+                field.setAccessible(true);
+                return field.get(obj);
+            } catch (NoSuchFieldException var5) {
+                clazz = clazz.getSuperclass();
+            }
+        }
+        throw new NoSuchFieldException(obj.getClass().getName() + " Field not found: " + name);
+    }
+}