客户照片上传功能

src/main/java/com/rj/dto/CustomerPhotoPreviewResult.java

@@ -0,0 +1,40 @@
+package com.rj.dto;
+
+import lombok.Getter;
+
+import java.io.InputStream;
+
+/**
+ * 客户照片预览：从 MinIO 打开流的结果。
+ */
+@Getter
+public class CustomerPhotoPreviewResult {
+
+    public enum Status {
+        OK,
+        NOT_FOUND,
+        BAD_REQUEST
+    }
+
+    private final Status status;
+    private final InputStream inputStream;
+    private final String contentType;
+
+    private CustomerPhotoPreviewResult(Status status, InputStream inputStream, String contentType) {
+        this.status = status;
+        this.inputStream = inputStream;
+        this.contentType = contentType;
+    }
+
+    public static CustomerPhotoPreviewResult ok(InputStream inputStream, String contentType) {
+        return new CustomerPhotoPreviewResult(Status.OK, inputStream, contentType);
+    }
+
+    public static CustomerPhotoPreviewResult notFound() {
+        return new CustomerPhotoPreviewResult(Status.NOT_FOUND, null, null);
+    }
+
+    public static CustomerPhotoPreviewResult badRequest() {
+        return new CustomerPhotoPreviewResult(Status.BAD_REQUEST, null, null);
+    }
+}

src/main/java/com/rj/dto/CustomerPhotoUploadResult.java

@@ -0,0 +1,34 @@
+package com.rj.dto;
+
+import lombok.Getter;
+
+/**
+ * 客户照片上传至 MinIO 的结果，供控制器映射 HTTP 状态与 JSON。
+ */
+@Getter
+public class CustomerPhotoUploadResult {
+
+    private final int httpStatus;
+    private final boolean success;
+    private final String message;
+    private final String url;
+
+    private CustomerPhotoUploadResult(int httpStatus, boolean success, String message, String url) {
+        this.httpStatus = httpStatus;
+        this.success = success;
+        this.message = message;
+        this.url = url;
+    }
+
+    public static CustomerPhotoUploadResult ok(String url) {
+        return new CustomerPhotoUploadResult(200, true, "上传成功", url);
+    }
+
+    public static CustomerPhotoUploadResult badRequest(String message) {
+        return new CustomerPhotoUploadResult(400, false, message, null);
+    }
+
+    public static CustomerPhotoUploadResult serverError(String message) {
+        return new CustomerPhotoUploadResult(500, false, message, null);
+    }
+}