标签:elm inf 创建失败 collect _id ror ring ice rri
1.批量添加
dao层
/**
* 批量新增商品类别
* @param productCategoryList
* @return 影响的行数
*/
public int batchInsertProductCategory(List<ProductCategory> productCategoryList);
在编写mapper时,因为传入的是List,所以要写的parameterType=“java.util.List”
然后需要使用<foreach来进行批量插入
<!--public int batchInsertProductCategory(List<ProductCategory> productCategoryList);-->
<insert id="batchInsertProductCategory" parameterType="java.util.List">
INSERT INTO
product_category(product_category_name, priority, create_time, shop_id)
VALUES
<foreach collection="list" item="productCategory" index="index" separator=",">
(
#{productCategory.productCategoryName},
#{productCategory.priority},
#{productCategory.createTime},
#{productCategory.shopId}
)
</foreach>
</insert>
service层
/**
* 批量添加商品类别
* @param productCategoryList
* @return
*/
public ProductCategoryExecution batchAddProductCategory(List<ProductCategory> productCategoryList);
impl
@Override
@Transactional
public ProductCategoryExecution batchAddProductCategory(List<ProductCategory> productCategoryList) {
if(productCategoryList != null && productCategoryList.size() >= 0){
int effecNum = productCategoryDao.batchInsertProductCategory( productCategoryList );
try{
if(effecNum <= 0){
throw new ProductCategoryException( "商品类别创建失败" );
}else{
return new ProductCategoryExecution( ProductCategoryEnum.SUCCESS);
}
} catch (Exception e){
throw new ProductCategoryException("batchAddProductCategory Error: " + e.getMessage());
}
} else{
return new ProductCategoryExecution(ProductCategoryEnum.EMPTY_LIST);
}
}
Controller层
@RequestMapping(value="addproductcategories", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> addProductCategories(@RequestBody List<ProductCategory> productCategoryList,
HttpServletRequest request){
Map<String, Object> modelMap = new HashMap<>();
Shop currentShop = new Shop();
currentShop.setShopId(1L);
for(ProductCategory productCategory : productCategoryList){
productCategory.setShopId( currentShop.getShopId() );
}
if(productCategoryList != null && productCategoryList.size() > 0){
ProductCategoryExecution productCategoryExecution = null;
try{
productCategoryExecution = productCategoryService.batchAddProductCategory( productCategoryList );
if(productCategoryExecution.getState() == ProductCategoryEnum.SUCCESS.getState()){
modelMap.put( "success", true );
}else{
modelMap.put( "success", false );
modelMap.put( "errMsg", productCategoryExecution.getStateInfo());
}
}catch(ProductCategoryException e){
modelMap.put( "success", false );
modelMap.put( "errMsg", e.getMessage());
return modelMap;
}
}else{
modelMap.put( "success", false );
modelMap.put( "errMsg", "请至少输入一个商品类别");
}
return modelMap;
}
标签:elm inf 创建失败 collect _id ror ring ice rri
原文地址:https://www.cnblogs.com/SkyeAngel/p/8916873.html