org.hibernate.tool.schema.spi.CommandAcceptanceException: 执行 DDL 时出错 "CREATE FUNCTION"

Question

我正在尝试创建一个函数来使用 SQL 脚本计算两点之间的距离（经度和纬度），同时运行通过在 persistence.xml 中指定应用程序]

<property name="javax.persistence.schema-generation.create-script-source"
           value="calculate_distance_function.sql" />

但我有一个 CommandAcceptanceException 并且无法弄清楚原因。我什至尝试使用

<property name="javax.persistence.sql-load-script-source"
          value="calculate_distance_function.sql" />

但仍然无法正常工作，并出现以下错误。

00:06:21,512 INFO [stdout] (ServerService Thread Pool -- 72) Hibernate: CREATE FUNCTION CalcDistance( Lat1 DOUBLE, Long1 DOUBLE, Lat2 DOUBLE, Long2 DOUBLE ) RETURNS double

00:06:21,513 WARN [org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl] (ServerService Thread Pool -- 72) GenerationTarget encountered exception accepting command : Error executing DDL "CREATE FUNCTION CalcDistance( Lat1 DOUBLE, Long1 DOUBLE, Lat2 DOUBLE, Long2 DOUBLE ) RETURNS double" via JDBC Statement: org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "CREATE FUNCTION CalcDistance( Lat1 DOUBLE, Long1 DOUBLE, Lat2 DOUBLE, Long2 DOUBLE ) RETURNS double" via JDBC Statement at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:67) at org.hibernate.tool.schema.internal.SchemaCreatorImpl.applySqlString(SchemaCreatorImpl.java:440) at org.hibernate.tool.schema.internal.SchemaCreatorImpl.createFromScript(SchemaCreatorImpl.java:192) at org.hibernate.tool.schema.internal.SchemaCreatorImpl.performCreation(SchemaCreatorImpl.java:162) at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:135) at org.hibernate.tool.schema.internal.SchemaCreatorImpl.doCreation(SchemaCreatorImpl.java:121) at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:129) at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72) at org.hibernate.internal.SessionFactoryImpl.(SessionFactoryImpl.java:310) at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:467) at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:939) at org.jboss.as.jpa.hibernate5.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44) at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:167) at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:125) at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:650) at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.run(PersistenceUnitServiceImpl.java:209) at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1985) at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1487) at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1378) at java.lang.Thread.run(Thread.java:748) at org.jboss.threads.JBossThread.run(JBossThread.java:485) Caused by: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:118) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:95) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) at com.mysql.cj.jdbc.StatementImpl.executeInternal(StatementImpl.java:790) at com.mysql.cj.jdbc.StatementImpl.execute(StatementImpl.java:675) at org.jboss.jca.adapters.jdbc.WrappedStatement.execute(WrappedStatement.java:198) at org.hibernate.tool.schema.internal.exec.GenerationTargetToDatabase.accept(GenerationTargetToDatabase.java:54) ... 21 more

这是我的persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
             http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
    version="2.1">

    <persistence-unit name="Persistence"
        transaction-type="JTA">
        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>

        <jta-data-source>java:jboss/datasources/tontapatt_db</jta-data-source>
        
        <class>fr.eql.ai109.tontapatt.entity.ZipCodeCity</class>
        <properties>
            <property
                name="javax.persistence.schema-generation.database.action"
                value="create" />
            <property name="hibernate.show_sql" value="true" />
            <property name="hibernate.dialect"
                value="org.hibernate.dialect.MySQL8Dialect" />
          <property name="javax.persistence.schema-generation.create-script-source"
           value="calculate_distance_function.sql" />
        <!--        <property name="javax.persistence.sql-load-script-source"
          value="calculate_distance_function.sql" /> -->
        </properties>
    </persistence-unit>

</persistence>

改变 MySQL 的方言也无济于事。如果我尝试在 MySQL workbench 和运行中打开脚本，它工作正常，我可以看到添加的功能。这是我的 SQL 函数脚本

CREATE DEFINER=`root`@`localhost` FUNCTION `CalcDistance`( Lat1 DOUBLE, Long1 DOUBLE, Lat2 DOUBLE, Long2 DOUBLE ) RETURNS double 
BEGIN 
DECLARE r INT;    
DECLARE phi1 DOUBLE;    
DECLARE phi2 DOUBLE;    
DECLARE dphi DOUBLE;    
DECLARE dlam DOUBLE;    
DECLARE a DOUBLE;    
DECLARE c DOUBLE;    
DECLARE d DOUBLE;
SET r = 6371000;    
SET phi1 = Lat1 * PI() / 180;    
SET phi2 = Lat2 * PI() / 180;    
SET dphi = ( Lat2 - Lat1 ) * PI() / 180;    
SET dlam = ( Long2 - Long1 ) * PI() / 180;   
SET a = SIN( dphi / 2 ) * SIN( dphi / 2 ) + COS( phi1 ) * COS( phi2 ) * SIN( dlam / 2 ) * SIN( dlam / 2 );    
SET c = 2 * ATAN2( SQRT( a ), SQRT( 1 - a ) );    
SET d = r * c / 1000;    
RETURN d;    
END

我什至尝试在它前后添加一个分隔符。

有人可以帮我解决这个问题吗？

Answer 1

你能试试在第一行用单引号代替反引号吗？

改变

DEFINER=`root`@`localhost` FUNCTION `CalcDistance`

到

DEFINER='root'@'localhost' FUNCTION 'CalcDistance' (Note single quotes)

这是来自 MySQL 官方文档的示例，它工作得很好。

CREATE DEFINER = 'admin'@'localhost' PROCEDURE account_count()
BEGIN
  SELECT 'Number of accounts:', COUNT(*) FROM mysql.user;
END;

org.hibernate.tool.schema.spi.CommandAcceptanceException: 执行 DDL 时出错 "CREATE FUNCTION"

org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL "CREATE FUNCTION"

java

mysql

hibernate

jpa

persistence.xml