Spring-data 错误地形成了请求

Question

我有表任务：

create table tasks
(
    id          bigserial,
    title       varchar(25) not null,
    leader_id   bigint      not null,
    project_id  bigint      not null,
    deadline    date        not null,
    primary key (id),
    foreign key (leader_id) references users (id),
    foreign key (project_id) references projects (id),
    is_archived BOOLEAN default FALSE
);

任务休息控制器：

@GetMapping
public List<Task> getAllTasksByProjectId(@RequestParam(value = "page", defaultValue = "1") Integer page,
                                         @RequestParam(required = false) MultiValueMap<String, String> params) {
    TaskFilter taskFilter = new TaskFilter(params);
    return taskService.findAllTasksByProject(taskFilter.getSpec(), page - 1, 5).getContent();
}

服务：

public Page<Task> findAllTasksByProject(Specification<Task> spec, int page, int size) {
    return taskRepository.findAll(spec, PageRequest.of(page, size));
}

存储库：

@Repository
public interface TaskRepository extends JpaRepository<Task, Long>, JpaSpecificationExecutor<Task> {
}

筛选：

 public TaskFilter(MultiValueMap<String, String> params) {
        spec = Specification.where(null);
        if (params.containsKey("is_archived")) {
            spec.and(TaskSpecifications.isArchived(Boolean.parseBoolean(params.getFirst("is_archived"))));
            System.out.println(params.getFirst("is_archived"));
        }
        if (params.containsKey("project")) {
            spec = spec.and(TaskSpecifications.projectEqual(Long.parseLong(params.getFirst("project"))));
        }
    }

及规格：

public static Specification<Task> projectEqual(Long projectId) {
    return (Specification<Task>) (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder.equal(root.get("project"), projectId);
}
public static Specification<Task> isArchived(Boolean isArchived) {
    return (Specification<Task>) (root, criteriaQuery, criteriaBuilder) -> criteriaBuilder.equal(root.get("isArchived"), isArchived);
}

所以我想获取 is_archived = true 或 false 的所有任务。 但是我得到了所有的任务。 例如获取请求到

本地主机:8189/tm/api/v1/tasks?page=1&is_archived=false

返回带有 is_archived = true 和 false 的任务。 它可能是什么问题？

Answer 1

我在这一行有错误：

spec.and(TaskSpecifications.isArchived(Boolean.parseBoolean(params.getFirst("is_archived"))));

每次我创建新规范，而不是添加旧规范。

spec = spec.and(TaskSpecifications.isArchived(Boolean.parseBoolean(params.getFirst("is_archived"))));