fix:提交到整个项目能跑通，有几个接口不标准

docs/problem_fix/03-fix-doing/08-get-crossingprojects.md

@@ -0,0 +1,74 @@
+# GET /crossingprojects
+
+> 来源：BrAPI v2.1 校验报告（03-fix.md）
+
+## 概要
+
+| 项 | 值 |
+| --- | --- |
+| 状态 | warning |
+| 方法 | GET |
+| URL | `/brapi/v2/crossingprojects` |
+| 完整 URL | `http://localhost:8081/brapi/v2/crossingprojects` |
+| 路径模板 | `GET /crossingprojects` |
+| 模块 | Crossing Projects |
+| 响应时间 | 13722 ms |
+
+## 校验详情
+
+```
+GET /crossingprojects
+Crossing Projects
+13722 ms
+schema mismatch
+Json matches schema: schemas/v2.1/CrossingProjects/getCrossingprojectsResponse.json (schema mismatch) — Schema: schemas/v2.1/CrossingProjects/getCrossingprojectsResponse.json
+Response structure doesn't match schema.
+[
+  {
+    "level": "error",
+    "schema": {
+      "loadingURI": "#",
+      "pointer": "/properties/result/properties/data/items/properties/additionalInfo/additionalProperties"
+    },
+    "instance": {
+      "pointer": "/result/data/8/additionalInfo/dummyData"
+    },
+    "domain": "validation",
+    "keyword": "type",
+    "message": "instance type (boolean) does not match any allowed primitive type (allowed: [\"string\"])",
+    "found": "boolean",
+    "expected": [
+      "string"
+    ]
+  },
+  {
+    "level": "error",
+    "schema": {
+      "loadingURI": "#",
+      "pointer": "/properties/result/properties/data/items/properties/additionalInfo/additionalProperties"
+    },
+    "instance": {
+      "pointer": "/result/data/12/additionalInfo/dummyData"
+    },
+    "domain": "validation",
+    "keyword": "type",
+    "message": "instance type (boolean) does not match any allowed primitive type (allowed: [\"string\"])",
+    "found": "boolean",
+    "expected": [
+      "string"
+    ]
+  }
+]
+```
+
+---
+
+## 修复说明
+
+- **根因**：`additional_info.value` 列以 Java 序列化形式存储 `Boolean.TRUE`；`getAdditionalInfoMap()` 原先直接返回反序列化后的 `Boolean`，JSON 序列化为 boolean，与 BrAPI schema（`additionalInfo` 值须为 string）不符。
+- **修复**：在 `BrAPIPrimaryEntity.getAdditionalInfoMap()` 中对每个值使用 `String.valueOf()`，使 `dummyData` 等字段以 `"true"` 字符串形式返回。
+- **验证**：`GET /brapi/v2/crossingprojects` 响应中 `additionalInfo.dummyData` 均为 JSON 字符串（如 `"dummyData":"true"`），无 boolean 类型。
+
+---
+
+**状态：已完成**