Мне дали весенний проект с Gradle в качестве инструмента для сборки. Поскольку я знаком с maven, я попытался изменить инструмент сборки проекта на maven. Я определил зависимости в pom.xml, как это было в build.gradle, используя тот же идентификатор группы, идентификатор артефакта и версию. Однако в maven-версии проекта есть ошибка с одной зависимостью, сравнивая обе зависимости, я обнаружил, что файлы классов разные, я искал и не нашел ничего похожего на мою проблему.
В build.gradle
compile 'org.springframework.data:spring-data-jpa:1.10.4.RELEASE'
In pom.xml
<!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-jpa -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.10.4.RELEASE</version>
</dependency>
Разница в коде находится в CrudRepository.class
В проекте с pom.xml это класс
/*
* Copyright 2008-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.repository;
import java.util.Optional;
/**
* Interface for generic CRUD operations on a repository for a specific type.
*
* @author Oliver Gierke
* @author Eberhard Wolff
*/
@NoRepositoryBean
public interface CrudRepository<T, ID> extends Repository<T, ID> {
/**
* Saves a given entity. Use the returned instance for further operations as the save operation might have changed the
* entity instance completely.
*
* @param entity must not be {@literal null}.
* @return the saved entity will never be {@literal null}.
*/
<S extends T> S save(S entity);
/**
* Saves all given entities.
*
* @param entities must not be {@literal null}.
* @return the saved entities will never be {@literal null}.
* @throws IllegalArgumentException in case the given entity is {@literal null}.
*/
<S extends T> Iterable<S> saveAll(Iterable<S> entities);
/**
* Retrieves an entity by its id.
*
* @param id must not be {@literal null}.
* @return the entity with the given id or {@literal Optional#empty()} if none found
* @throws IllegalArgumentException if {@code id} is {@literal null}.
*/
Optional<T> findById(ID id);
/**
* Returns whether an entity with the given id exists.
*
* @param id must not be {@literal null}.
* @return {@literal true} if an entity with the given id exists, {@literal false} otherwise.
* @throws IllegalArgumentException if {@code id} is {@literal null}.
*/
boolean existsById(ID id);
/**
* Returns all instances of the type.
*
* @return all entities
*/
Iterable<T> findAll();
/**
* Returns all instances of the type with the given IDs.
*
* @param ids
* @return
*/
Iterable<T> findAllById(Iterable<ID> ids);
/**
* Returns the number of entities available.
*
* @return the number of entities
*/
long count();
/**
* Deletes the entity with the given id.
*
* @param id must not be {@literal null}.
* @throws IllegalArgumentException in case the given {@code id} is {@literal null}
*/
void deleteById(ID id);
/**
* Deletes a given entity.
*
* @param entity
* @throws IllegalArgumentException in case the given entity is {@literal null}.
*/
void delete(T entity);
/**
* Deletes the given entities.
*
* @param entities
* @throws IllegalArgumentException in case the given {@link Iterable} is {@literal null}.
*/
void deleteAll(Iterable<? extends T> entities);
/**
* Deletes all entities managed by the repository.
*/
void deleteAll();
}
В проекте с build.gradle это класс
/*
* Copyright 2008-2011 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.repository;
import java.io.Serializable;
/**
* Interface for generic CRUD operations on a repository for a specific type.
*
* @author Oliver Gierke
* @author Eberhard Wolff
*/
@NoRepositoryBean
public interface CrudRepository<T, ID extends Serializable> extends Repository<T, ID> {
/**
* Saves a given entity. Use the returned instance for further operations as the save operation might have changed the
* entity instance completely.
*
* @param entity
* @return the saved entity
*/
<S extends T> S save(S entity);
/**
* Saves all given entities.
*
* @param entities
* @return the saved entities
* @throws IllegalArgumentException in case the given entity is {@literal null}.
*/
<S extends T> Iterable<S> save(Iterable<S> entities);
/**
* Retrieves an entity by its id.
*
* @param id must not be {@literal null}.
* @return the entity with the given id or {@literal null} if none found
* @throws IllegalArgumentException if {@code id} is {@literal null}
*/
T findOne(ID id);
/**
* Returns whether an entity with the given id exists.
*
* @param id must not be {@literal null}.
* @return true if an entity with the given id exists, {@literal false} otherwise
* @throws IllegalArgumentException if {@code id} is {@literal null}
*/
boolean exists(ID id);
/**
* Returns all instances of the type.
*
* @return all entities
*/
Iterable<T> findAll();
/**
* Returns all instances of the type with the given IDs.
*
* @param ids
* @return
*/
Iterable<T> findAll(Iterable<ID> ids);
/**
* Returns the number of entities available.
*
* @return the number of entities
*/
long count();
/**
* Deletes the entity with the given id.
*
* @param id must not be {@literal null}.
* @throws IllegalArgumentException in case the given {@code id} is {@literal null}
*/
void delete(ID id);
/**
* Deletes a given entity.
*
* @param entity
* @throws IllegalArgumentException in case the given entity is {@literal null}.
*/
void delete(T entity);
/**
* Deletes the given entities.
*
* @param entities
* @throws IllegalArgumentException in case the given {@link Iterable} is {@literal null}.
*/
void delete(Iterable<? extends T> entities);
/**
* Deletes all entities managed by the repository.
*/
void deleteAll();
}`
Они различаются по своему импорту, и в проекте есть метод findOne(Id id) с gradle, но его нет в проекте с maven. Я не могу понять, что я сделал не так.