解决org.springframework.orm.jpa.JpaSystemException: ids for this class must be manually assigned befor

在做一个存入表测试的时候，报如下错误

org.springframework.orm.jpa.JpaSystemException: ids for this class must be manually assigned before calling save(): com.lzy.weixinsell.dataobject.ProductInfo; nested exception is org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): com.lzy.weixinsell.dataobject.ProductInfo

    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:333)
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:244)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:503)
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:59)
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:209)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:147)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
 

表的主键不是自增的。

测试代码如下

 @Test
    public void saveTest(){
        ProductInfo productInfo = new ProductInfo();
        productInfo.setProductIcon("123456");
        productInfo.setProductName("皮蛋粥");
        productInfo.setProductPrice(new BigDecimal(5));
        productInfo.setProductStock(100);
        productInfo.setProductDescription("很好喝的粥");
        productInfo.setProductIcon("http://xxxx.jpg");
        productInfo.setProductStatus(0);
        productInfo.setCategoryType(2);

       ProductInfo result= repository.save(productInfo);
        Assert.assertNotNull(result);
    }

表结构

然后在测试代码添加了id，则报错解决。修改后

@Test
    public void saveTest(){
        ProductInfo productInfo = new ProductInfo();
        productInfo.setProductId("1");
        productInfo.setProductIcon("123456");
        productInfo.setProductName("皮蛋粥");
        productInfo.setProductPrice(new BigDecimal(5));
        productInfo.setProductStock(100);
        productInfo.setProductDescription("很好喝的粥");
        productInfo.setProductIcon("http://xxxx.jpg");
        productInfo.setProductStatus(0);
        productInfo.setCategoryType(2);

       ProductInfo result= repository.save(productInfo);
        Assert.assertNotNull(result);
    }