java - Spring Data REST - 在不创建/搜索/findAll URL 的情况下覆盖存储库 findAll

Question

有什么方法可以防止 Spring Data REST 为覆盖的存储库方法创建/search URL？

例如，以下代码会生成一个/search/findAll URL，它复制了集合资源的功能:

public interface EmployeeRepository extends CrudRepository<Employee, Long>
{
    @Override
    @Query("SELECT e FROM Empolyee e")
    Iterable<Employee> findAll();
}

这只是覆盖单个方法时的表面问题，但如果您尝试覆盖具有相同函数名称和不同参数的多个方法，例如 PagingAndSortingRepository 中的两个 findAll 方法，那么 spring 会抛出异常，因为它试图映射 2 个函数到相同的路径。

public interface EmployeeRepository extends PagingAndSortingRepository<Employee, Long>
{
    @Override
    @Query("SELECT e FROM Employee e")
    Iterable<Employee> findAll();

    @Override
    @Query("SELECT e FROM Employee e")
    Iterable<Employee> findAll(Sort sort);

    @Override
    @Query("SELECT e FROM Employee e")  
    Page<Employee> findAll(Pageable pageable);
}

结果:

java.lang.IllegalStateException: Ambiguous search mapping detected. Both public abstract java.lang.Iterable uk.co.essl.roster.entity.employee.EmployeeRepository.findAll(org.springframework.data.domain.Sort) and public abstract java.lang.Iterable uk.co.essl.roster.entity.employee.EmployeeRepository.findAll() are mapped to /findAll! Tweak configuration to get to unambiguous paths!
    at org.springframework.data.rest.core.mapping.SearchResourceMappings.<init>(SearchResourceMappings.java:60)
    at org.springframework.data.rest.core.mapping.RepositoryResourceMappings.getSearchResourceMappings(RepositoryResourceMappings.java:128)
    at springfox.documentation.spring.data.rest.EntityContext.searchMappings(EntityContext.java:107)
    ...

Answer 1

Is there any way to prevent Spring Data REST from creating a /search URLs for overridden repository methods?

我发现了以下技巧来解决这个问题:

@Override
default Page<Employee> findAll(Pageable pageable) {
    return findBy(pageable);
}

@RestResource(exported = false)
Page<Employee> findBy(Pageable pageable);

更多其他这个技巧允许您为“获取所有记录”请求设置默认排序顺序:

@Override
default Page<Employee> findAll(Pageable p) {
    if (p.getSort() == null) {      
        // The default sort order
        return findBy(new PageRequest(p.getPageNumber(), p.getPageSize(), Sort.Direction.DESC, "myField"));
    }
    return findBy(pageable);
}

尽情享受吧! ))

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@RestResource(exported=false) 仅用于覆盖方法将无济于事，因为这会阻止GET“所有记录”请求(