fix(产品需求): 完善产品需求的诸多细节。

rdms-project/rdms-project-boot/src/main/java/com/njcn/rdms/module/project/controller/admin/project/ProjectController.java

@@ -21,6 +21,8 @@ import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
+
 import static com.njcn.rdms.framework.common.pojo.CommonResult.success;
 
 @Tag(name = "管理后台 - 项目管理")
@@ -67,6 +69,13 @@ public class ProjectController {
         return success(BeanUtils.toBean(pageResult, ProjectRespVO.class));
     }
 
+    @GetMapping("/list-by-product")
+    @Operation(summary = "根据产品编号获取该产品下的全部项目")
+    @Parameter(name = "productId", description = "产品编号", required = true, example = "1024")
+    public CommonResult<List<ProjectRespVO>> getProjectListByProductId(@RequestParam("productId") Long productId) {
+        return success(projectService.getProjectListByProductId(productId));
+    }
+
     @GetMapping("/overview-summary")
     @Operation(summary = "获取项目入口页概览统计")
     public CommonResult<ProjectOverviewSummaryRespVO> getProjectOverviewSummary() {

rdms-project/rdms-project-boot/src/main/java/com/njcn/rdms/module/project/dal/mysql/project/ProjectMapper.java

@@ -72,6 +72,12 @@ public interface ProjectMapper extends BaseMapperX<ProjectDO> {
                 .orderByDesc(ProjectDO::getProjectCode));
     }
 
+    default List<ProjectDO> selectListByProductId(Long productId) {
+        return selectList(new LambdaQueryWrapperX<ProjectDO>()
+                .eq(ProjectDO::getProductId, productId)
+                .orderByDesc(BaseDO::getCreateTime));
+    }
+
     default int updateStatusByIdAndStatus(Long id, String fromStatus, String toStatus, String lastStatusReason) {
         ProjectDO update = new ProjectDO();
         update.setStatusCode(toStatus);

rdms-project/rdms-project-boot/src/main/java/com/njcn/rdms/module/project/service/product/ProductRequirementServiceImpl.java

@@ -228,9 +228,15 @@ public class ProductRequirementServiceImpl implements ProductRequirementService
             rootIds.add(rootId);
         }
 
-        // 第三步：查询根需求详情并按创建时间倒排
+        // 第三步：查询根需求详情并按排序值升序、创建时间倒排
         List<ProductRequirementDO> rootRequirements = requirementMapper.selectBatchIds(rootIds);
-        rootRequirements.sort((a, b) -> b.getCreateTime().compareTo(a.getCreateTime()));
+        rootRequirements.sort((a, b) -> {
+            int sortCompare = Integer.compare(a.getSort() != null ? a.getSort() : 0, b.getSort() != null ? b.getSort() : 0);
+            if (sortCompare != 0) {
+                return sortCompare;
+            }
+            return b.getCreateTime().compareTo(a.getCreateTime());
+        });
 
         // 第四步：对根节点列表进行内存分页
         int pageNo = pageReqVO.getPageNo() != null ? pageReqVO.getPageNo() : 1;

rdms-project/rdms-project-boot/src/main/java/com/njcn/rdms/module/project/service/project/ProjectService.java

@@ -10,6 +10,8 @@ import com.njcn.rdms.module.project.controller.admin.project.vo.project.ProjectS
 import com.njcn.rdms.module.project.controller.admin.project.vo.project.ProjectStatusActionReqVO;
 import com.njcn.rdms.module.project.dal.dataobject.project.ProjectDO;
 
+import java.util.List;
+
 /**
  * 项目 Service 接口
  */
@@ -23,6 +25,8 @@ public interface ProjectService {
 
     ProjectRespVO getProjectDetail(Long id);
 
+    List<ProjectRespVO> getProjectListByProductId(Long productId);
+
     ProjectContextRespVO getProjectContext(Long id);
 
     PageResult<ProjectDO> getProjectPage(ProjectPageReqVO pageReqVO);

rdms-project/rdms-project-boot/src/main/java/com/njcn/rdms/module/project/service/project/ProjectServiceImpl.java

@@ -177,10 +177,15 @@ public class ProjectServiceImpl implements ProjectService {
     @Override
     public ProjectRespVO getProjectDetail(Long id) {
         ProjectDO project = validateProjectExists(id);
-        ProjectRespVO respVO = BeanUtils.toBean(project, ProjectRespVO.class);
-        respVO.setProductName(getProductName(project.getProductId()));
-        respVO.setManagerUserNickname(getManagerNickname(project.getManagerUserId()));
-        return respVO;
+        return buildProjectRespVO(project);
+    }
+
+    @Override
+    public List<ProjectRespVO> getProjectListByProductId(Long productId) {
+        validateProductUsable(productId);
+        return projectMapper.selectListByProductId(productId).stream()
+                .map(this::buildProjectRespVO)
+                .collect(Collectors.toList());
     }
 
     @Override
@@ -666,6 +671,16 @@ public class ProjectServiceImpl implements ProjectService {
         return currentProject;
     }
 
+    /**
+     * 构建项目响应对象，补齐产品名和负责人昵称，避免前端再做二次查询。
+     */
+    private ProjectRespVO buildProjectRespVO(ProjectDO project) {
+        ProjectRespVO respVO = BeanUtils.toBean(project, ProjectRespVO.class);
+        respVO.setProductName(getProductName(project.getProductId()));
+        respVO.setManagerUserNickname(getManagerNickname(project.getManagerUserId()));
+        return respVO;
+    }
+
     private ProjectContextRespVO buildProjectContextWithoutMenus(ProjectDO project, boolean guestFlag) {
         ProjectContextRespVO respVO = new ProjectContextRespVO();
         respVO.setCurrentProject(buildCurrentProject(project));

rdms-project/rdms-project-boot/src/test/java/com/njcn/rdms/module/project/service/project/ProjectServiceImplTest.java

@@ -114,6 +114,38 @@ class ProjectServiceImplTest extends BaseMockitoUnitTest {
         assertEquals("张三", result.getManagerUserNickname());
     }
 
+    @Test
+    void getProjectListByProductId_shouldReturnProjectsUnderCurrentProduct() {
+        Long productId = 1001L;
+
+        ProductDO product = new ProductDO();
+        product.setId(productId);
+        product.setName("统一交付平台");
+
+        ProjectDO project1 = createProject(3001L, productId, "项目A", 2001L, "pending");
+        ProjectDO project2 = createProject(3002L, productId, "项目B", 2002L, "active");
+
+        AdminUserRespDTO manager1 = new AdminUserRespDTO();
+        manager1.setId(2001L);
+        manager1.setNickname("张三");
+        AdminUserRespDTO manager2 = new AdminUserRespDTO();
+        manager2.setId(2002L);
+        manager2.setNickname("李四");
+
+        when(productMapper.selectById(productId)).thenReturn(product);
+        when(projectMapper.selectListByProductId(productId)).thenReturn(List.of(project1, project2));
+        when(adminUserApi.getUser(2001L)).thenReturn(success(manager1));
+        when(adminUserApi.getUser(2002L)).thenReturn(success(manager2));
+
+        List<ProjectRespVO> result = projectService.getProjectListByProductId(productId);
+
+        assertEquals(2, result.size());
+        assertEquals(productId, result.get(0).getProductId());
+        assertEquals("统一交付平台", result.get(0).getProductName());
+        assertEquals("张三", result.get(0).getManagerUserNickname());
+        assertEquals("李四", result.get(1).getManagerUserNickname());
+    }
+
     @Test
     void createProject_withManualCode_shouldInsertPendingProjectInitManagerAndWriteAudit() {
         ProjectSaveReqVO reqVO = createReqVO("CNPJ-MANUAL", 1001L, "合同交付项目", 2001L);