spring boot自定义JPaRepository

/**
 * 
 */
package com.xyd.userDao;

import java.io.Serializable;

import org.springframework.data.repository.NoRepositoryBean;
import org.springframework.data.repository.PagingAndSortingRepository;

/**
 * @author admin
 *
 */
@NoRepositoryBean //指明不是自己私人的领域接口
//实现PagingAndSortingRepository接口，具备分页和排序功能
public interface CustomRepository <T,ID extends Serializable> extends PagingAndSortingRepository<T, ID>{
//这里可以写自己定义的数据操作方法
}

/**
 * 
 */
package com.xyd.userDao.impl;

import java.io.Serializable;

import javax.persistence.EntityManager;

import org.springframework.data.jpa.repository.support.SimpleJpaRepository;

import com.xyd.userDao.CustomRepository;

/**
 * @author admin
 *实现自定义接口类
 */
public class CustomRepositoryImpl<T,ID extends Serializable> extends SimpleJpaRepository<T, ID> implements CustomRepository<T,ID>{

	private final EntityManager entityManager; 
	
	/**
	 * @param domainClass
	 * @param em
	 */
	public CustomRepositoryImpl(Class<T> domainClass, EntityManager em) {
		super(domainClass, em);
		this.entityManager = em;
	}

}

编写userRepostory

public interface TestUserRep extends CustomRepository<User,Integer>{
	@Query("select u from User u where u.userName= :userName and u.email= :email")
	User findUser(@Param("userName")String userName,@Param("email")String email);
}

最后在controller里可以使用
public class UserControler{

@AutoWired

TestUserRep userRep;

public User findUser(String userName,String email){

User user = userRep.finUser(userName,email);

}

}