refactor: 目录结构优化

src/main/java/com/youlai/boot/common/util/ResponseUtils.java

@@ -0,0 +1,51 @@
+package com.youlai.boot.common.util;
+
+import cn.hutool.json.JSONUtil;
+import com.youlai.boot.common.result.Result;
+import com.youlai.boot.common.result.ResultCode;
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.charset.StandardCharsets;
+
+/**
+ * 响应工具类
+ *
+ * @author Ray Hao
+ * @since 2.0.0
+ */
+@Slf4j
+public class ResponseUtils {
+
+    /**
+     * 异常消息返回(适用过滤器中处理异常响应)
+     *
+     * @param response  HttpServletResponse
+     * @param resultCode 响应结果码
+     */
+    public static void writeErrMsg(HttpServletResponse response, ResultCode resultCode) {
+        // 根据不同的结果码设置HTTP状态
+        int status = switch (resultCode) {
+            case ACCESS_UNAUTHORIZED, TOKEN_INVALID -> HttpStatus.UNAUTHORIZED.value();
+            case TOKEN_ACCESS_FORBIDDEN -> HttpStatus.FORBIDDEN.value();
+            default -> HttpStatus.BAD_REQUEST.value();
+        };
+
+        response.setStatus(status);
+        response.setContentType(MediaType.APPLICATION_JSON_VALUE);
+        response.setCharacterEncoding(StandardCharsets.UTF_8.name());
+
+        try (PrintWriter writer = response.getWriter()) {
+            String jsonResponse = JSONUtil.toJsonStr(Result.failed(resultCode));
+            writer.print(jsonResponse);
+            writer.flush(); // 确保将响应内容写入到输出流
+        } catch (IOException e) {
+            log.error("响应异常处理失败", e);
+        }
+    }
+
+}