如何在Spring Boot JPA中将％searchKey％转换为本地查询 [英] how to convert like %searchKey% to native query in spring boot jpa

问题描述

我正在尝试将以下查询转换为本机查询，当查询返回2个元组时，我得到了空列表

I'm trying to convert the following query to native query, I'm getting empty list while the query is returning 2 tuples

以下是查询:

SELECT 
  s.id AS shopID,
  s.shop_name AS shopName 
FROM
  shop s 
WHERE s.shop_name LIKE '%store%' ;

以下是我创建的方法，该方法返回空列表，而它应该发送包含两个对象的列表 (这是m存储库的方法)

following is the method I've created which is returning empty list while it's supposed to send a list containing two objects (this is the method of m repository)

    @Query(value = "SELECT \n" +
            "  s.id AS shopID,\n" +
            "  s.shop_name AS shopName \n" +
            "FROM\n" +
            "  shop s \n" +
            "WHERE s.shop_name LIKE %:searchKey%", nativeQuery = true)
    List<Object[]> buyerDashboardSearchSuggestion(@Param("searchKey") String searchKey);

查询结果

以下是我的邮递员请求

{
    "searchKey": "store"
}

依赖关系与数据库相关

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.21</version>
        </dependency>

推荐答案

我怀疑%:searchKey%在本机查询中的组合，我认为%必须是参数的一部分.

I doubt the combination of %:searchKey% in a native query, I think % must be part of the parameter.

@Query(value = "SELECT \n" +
            "  s.id AS shopID,\n" +
            "  s.shop_name AS shopName \n" +
            "FROM\n" +
            "  shop s \n" +
            "WHERE s.shop_name LIKE :searchKey", nativeQuery = true)
List<Object[]> buyerDashboardSearchSuggestion_internal(@Param("searchKey") String searchKey);

default List<Object[]> buyerDashboardSearchSuggestion(String searchKey) {
    return buyerDashboardSearchSuggestion_internal("%"+searchKey+"%");
    //todo escape special chars like % and _ in "searchKey"
}

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