Question

    public List<DHProductLookupModel> findProductbyCCsapProductId(final String code)
{
    final String queryString = "SELECT {p:" + DHProductLookupModel.SAPPRODUCTID + "}" + "FROM{" + DHProductLookupModel._TYPECODE
            + " AS p}" + "WHERE" + "{p:" + DHProductLookupModel.SAPPRODUCTID + "}=?code ";
    final FlexibleSearchQuery query = new FlexibleSearchQuery(queryString);
    query.addQueryParameter("code", code);
    return flexibleSearchService.<DHProductLookupModel> search(query).getResult();
}

搜索（查询）抛出Null Pointer Exception，如何处理？

输出：

Caused by: java.lang.NullPointerException
    at de.hybris.platform.servicelayer.search.impl.DefaultFlexibleSearchService.getJaloResult(DefaultFlexibleSearchService.java:396) ~[coreserver.jar:?]
    at de.hybris.platform.servicelayer.search.impl.DefaultFlexibleSearchService.search(DefaultFlexibleSearchService.java:168) ~[coreserver.jar:?]
    at com.cancom.core.productlookup.dao.impl.CCProductLookupDaoImpl.findProductbyCCmanufacturerProductId(CCProductLookupDaoImpl.java:39) ~[classes/:?]
    at com.cancom.core.productlookup.service.impl.CCProductLookupServiceImpl.getProductforCCmanufacturerProductId(CCProductLookupServiceImpl.java:37) ~[classes/:?]

谢谢！

Answer 1

从

更改您的灵活搜索查询

 final String queryString = "SELECT {p:" + DHProductLookupModel.SAPPRODUCTID + "}" + "FROM{" + DHProductLookupModel._TYPECODE
        + " AS p}" + "WHERE" + "{p:" + DHProductLookupModel.SAPPRODUCTID + "}=?code ";

到

 final String queryString = "SELECT {p:" + DHProductLookupModel.PK + "}" + "FROM{" + DHProductLookupModel._TYPECODE
        + " AS p}" + "WHERE" + "{p:" + DHProductLookupModel.SAPPRODUCTID + "}=?code ";

您应该在搜索结果中发送DHProductLookupModel.PK。

Answer 2

在您的情况下，您可以使用 flexibleSearchService 的 getModelsByExample ，而不是编写查询。

你的方法就像

 public List<DHProductLookupModel> findProductbyCCsapProductId(final String code)
 {
     DHProductLookupModel dhProductLookupModel = new DHProductLookupModel();
     dhProductLookupModel.setSapProductID(code);
     return getFlexibleSearchService().getModelsByExample(dhProductLookupModel);
 }

find the example here

Answer 3

谢谢大家！我发现了问题。这是在我的春天。我只需要把：

 <context:component-scan base-package="myPackage"/>

为了安全起见，我还使用DHProductLookupModel.PK更改了查询。现在它的工作！

search（query）抛出NullPointerException

3 个答案:

find the example here