使用spring data JPA进行类目增删改查测试

阳光穿透心脏的1/2处 2022-12-15 02:27 154阅读 0赞

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);
        }
    
    
    }