对不返回数据的存储过程使用 @NamedStoredProcedureQuery答案

【问题标题】：using @NamedStoredProcedureQuery for stored proc which do not return data对不返回数据的存储过程使用 @NamedStoredProcedureQuery
【发布时间】：2021-03-19 11:33:53
【问题描述】：

我需要执行不返回任何数据的存储过程调用，我尝试使用 NamedStoredProcedureQuery 但它失败了

java.lang.IllegalArgumentException：没有找到具有该名称的@NamedStoredProcedureQuery：send_message

SendMessage.java

@NamedStoredProcedureQuery(
        name = "send_message",
        procedureName = "send_message",
        resultClasses = {SendMessage.class},
        parameters = {
                @StoredProcedureParameter(mode = ParameterMode.IN, type = Date.class, name = "date"),
                @StoredProcedureParameter(mode = ParameterMode.IN, type = String.class, name = "message")
        }
)
public class SendMessage implements Serializable {
}

MessageDao.java


@Component
public class MessageDao {

    @PersistenceContext
    private EntityManager entityManager;



    public void sendMessage(SendRequest sendRequest){
        StoredProcedureQuery query = this.entityManager.createNamedStoredProcedureQuery("send_message")
                .registerStoredProcedureParameter(0 , Date.class , ParameterMode.IN)
                .registerStoredProcedureParameter(1 , String.class, ParameterMode.IN);
        query.setParameter(0, sendRequest.getBusinessDate());
        query.setParameter(1, sendRequest.getMessage());
   
        query.execute();
    }

遇到异常

java.lang.IllegalArgumentException: No @NamedStoredProcedureQuery was found with that name : send_message
    at org.hibernate.internal.SessionImpl.createNamedStoredProcedureQuery(SessionImpl.java:3586) ~[hibernate-core-5.4.28.Final.jar:5.4.28.Final]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
    at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:362) ~[spring-orm-5.3.4.jar:5.3.4]
    at com.sun.proxy.$Proxy88.createNamedStoredProcedureQuery(Unknown Source) ~[na:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
    at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311) ~[spring-orm-5.3.4.jar:5.3.4]
    at com.sun.proxy.$Proxy88.createNamedStoredProcedureQuery(Unknown Source) ~[na:na]

有什么办法可以使这项工作，我不能把 @Entity 放在 SendMessage.java 中，因为它不与任何数据库表关联，也不返回任何东西？

【问题讨论】：

标签： java spring-boot jpa spring-data-jpa named-query

【解决方案1】：

注解@NamedStoredProcedureQuery 仅在您将其放在实体上时才有效。

你没有可以放置它的实体吗？

或者，您可以在src/resources/META-INF 中创建一个orm.xml 文件并将其放在那里：

<?xml version="1.0" encoding="UTF-8" ?>
<entity-mappings xmlns="http://www.datanucleus.org/xsd/jpa/orm"
                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 xsi:schemaLocation="http://www.datanucleus.org/xsd/jpa/orm
        http://www.datanucleus.org/xsd/jpa/orm_2_2.xsd" version="2.2">

    <named-stored-procedure-query name="send_message" result-class="SendMessage" 
        procedure-name="send_message">

        <parameter direction="IN" name="date" type="Date"/>
        <parameter direction="IN" name="message" type="String"/>

    </named-stored-procedure-query>    
</entity-mappings>

【讨论】：