app新增接口前端传入路径获取base64

zhyc-module/src/main/java/com/zhyc/module/app/controller/ImageController.java

@@ -0,0 +1,66 @@
+package com.zhyc.module.app.controller;
+
+import com.zhyc.common.config.RuoYiConfig;
+import com.zhyc.common.core.domain.AjaxResult;
+import com.zhyc.module.app.util.OcrRecognizeUtil;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+//图片返回base64
+@RestController
+@RequestMapping("/app/image")
+public class ImageController {
+
+@PostMapping
+public AjaxResult getImageBase64(String path) {
+    // 添加空值检查
+    if (path == null || path.trim().isEmpty()) {
+        return AjaxResult.error("路径不能为空");
+    }
+    path = path.replace("/profile", "");
+
+    try {
+        // 构建完整的文件路径
+        String fullPath = RuoYiConfig.getProfile() + path;
+
+        // 读取文件并转换为字节数组
+        byte[] fileBytes = java.nio.file.Files.readAllBytes(java.nio.file.Paths.get(fullPath));
+
+        // 将字节数组转换为base64字符串
+        String base64String = java.util.Base64.getEncoder().encodeToString(fileBytes);
+
+        // 获取文件扩展名以确定MIME类型
+        String mimeType = getMimeType(path);
+
+        // 返回base64数据，格式为 data:image/xxx;base64,xxxxx
+        String result = "data:" + mimeType + ";base64," + base64String;
+
+        return AjaxResult.success(result);
+    } catch (Exception e) {
+        return AjaxResult.error("读取图片失败: " + e.getMessage());
+    }
+}
+
+/**
+ * 根据文件扩展名获取MIME类型
+ */
+private String getMimeType(String fileName) {
+    String extension = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();
+    switch (extension) {
+        case "jpg":
+        case "jpeg":
+            return "image/jpeg";
+        case "png":
+            return "image/png";
+        case "gif":
+            return "image/gif";
+        case "bmp":
+            return "image/bmp";
+        default:
+            return "image/jpeg"; // 默认返回jpeg类型
+    }
+}
+
+}
+

zhyc-module/src/main/java/com/zhyc/module/app/controller/OrcController.java

@@ -8,6 +8,7 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+//文字识别
 @RestController
 @RequestMapping("/ocr")
 public class OrcController {