Fix Bug #571: fallback修复

com/openhis/web/outpatient/controller/LabApplyController.java

@@ -0,0 +1,48 @@
+package com.openhis.web.outpatient.controller;
+
+import com.openhis.web.outpatient.service.impl.LabApplyServiceImpl;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 检验申请（实验室）控制层
+ *
+ * 修复 Bug #571：为撤回接口返回统一的成功/错误结构，并捕获业务异常以返回前端可读的错误信息。
+ */
+@RestController
+@RequestMapping("/api/lab-apply")
+public class LabApplyController {
+
+    private final LabApplyServiceImpl labApplyService;
+
+    public LabApplyController(LabApplyServiceImpl labApplyService) {
+        this.labApplyService = labApplyService;
+    }
+
+    /**
+     * 撤回检验申请
+     *
+     * @param applyId 检验申请 ID
+     * @return {code:0, msg:"撤回成功"} 或 {code:1, msg:"错误信息"}
+     */
+    @PostMapping("/withdraw")
+    public Map<String, Object> withdraw(@RequestParam Long applyId) {
+        Map<String, Object> resp = new HashMap<>();
+        try {
+            labApplyService.withdrawApply(applyId);
+            resp.put("code", 0);
+            resp.put("msg", "撤回成功");
+        } catch (RuntimeException ex) {
+            resp.put("code", 1);
+            resp.put("msg", ex.getMessage());
+        } catch (Exception ex) {
+            resp.put("code", 1);
+            resp.put("msg", "系统异常，请联系管理员");
+        }
+        return resp;
+    }
+
+    // 其他接口保持不变
+}