使用spring data JPA进行类目增删改查测试

注意两点

• 增加和修改都是用save方法来实现的
• 在使用更新方法的时候，时间并没有自动更新，需要在ProductCategory类上加@DynamicUpdate注解，实现自动更新

另：在测试方法上加上@Transactional注解，在测试方法执行完之后，会自动回滚。

因为会回滚，那我么怎么知道是否成功了呢，我们可以加上断言Assert.assertNotNull(result);

如果result不为null,则通过，如果为null，则抛出异常。

ProductCategory

package com.lbl.dataObject;

import lombok.Data;
import org.hibernate.annotations.DynamicUpdate;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import java.util.Date;

/**
 * 类目
 * Created by 李柏霖
 * 2020-10-09 20：41
 * product_category
 */
@Entity
@DynamicUpdate
@Data
public class ProductCategory {
    
    

    /** 类目id. */
    @Id
    @GeneratedValue
    private Integer categoryId;

    /** 类目名字. */
    private String categoryName;

    /** 类目编号. */
    private Integer categoryType;

    private Date createTime;

    private Date updateTime;

    public ProductCategory() {
    
    
    }

    public ProductCategory(String categoryName, Integer categoryType) {
    
    
        this.categoryName = categoryName;
        this.categoryType = categoryType;
    }
}

ProductCategoryRepository

package com.lbl.repository;

import com.lbl.dataObject.ProductCategory;
import org.springframework.data.jpa.repository.JpaRepository;

/**
 * Created by 李柏霖
 * 2020-10-09 21:34
 */
public interface ProductCategoryRepository extends JpaRepository<ProductCategory, Integer> {
    
    

}

ProductCategoryRepositoryTest

package com.lbl.repository;

import com.lbl.dataObject.ProductCategory;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.transaction.annotation.Transactional;

/**
 * Created by 李柏霖
 * 2020-10-09 21:35
 */
@RunWith(SpringRunner.class)
@SpringBootTest
public class ProductCategoryRepositoryTest {
    
    


    @Autowired
    private ProductCategoryRepository repository;

    @Test
    public void findOneTest() {
    
    
        ProductCategory productCategory = repository.findOne(1);
        System.out.println(productCategory.toString());
    }
    @Test
    @Transactional
    public void addCategoryTest() {
    
    
        ProductCategory productCategory = new ProductCategory("女生最爱",2);
        ProductCategory result = repository.save(productCategory);
        Assert.assertNotNull(result);
        System.out.println(result.toString());
    }
    @Test
    public void updateCategoryTest() {
    
    
        ProductCategory productCategory =  repository.findOne(2);
        productCategory.setCategoryType(10);
        ProductCategory save = repository.save(productCategory);
        System.out.println(save.toString());
    }
    @Test
    public void deleteCategoryTest() {
    
    
        repository.delete(3);
    }


}