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

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：未找到具有该名称的@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();
    }

低于异常

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]

有什么办法可以让这个工作，我不能把@Entity放在SendMessage.java中，因为它不与任何数据库表相关联，也不要返回任何东西？

解决方法

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 orm.xml 中创建一个 src/resources/META-INF 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>