【功能新增】INFRA：增加 ConfigApi，支持参数配置的读取

yudao-module-infra/yudao-module-infra-biz/src/main/java/cn/iocoder/yudao/module/infra/api/config/ConfigApiImpl.java

@@ -0,0 +1,25 @@
+package cn.iocoder.yudao.module.infra.api.config;
+
+import cn.iocoder.yudao.framework.common.pojo.CommonResult;
+import cn.iocoder.yudao.module.infra.dal.dataobject.config.ConfigDO;
+import cn.iocoder.yudao.module.infra.service.config.ConfigService;
+import jakarta.annotation.Resource;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.RestController;
+
+import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
+
+@RestController // 提供 RESTful API 接口，给 Feign 调用
+@Validated
+public class ConfigApiImpl implements ConfigApi {
+
+    @Resource
+    private ConfigService configService;
+
+    @Override
+    public CommonResult<String> getConfigValueByKey(String key) {
+        ConfigDO config = configService.getConfigByKey(key);
+        return success(config != null ? config.getValue() : null);
+    }
+
+}