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java - 休眠保留关键字转义不起作用

问题描述

MYSQL由于在休眠模型中使用保留关键字，我遇到了错误。

java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'when, who, why) values ('ICL670A - Project Deliverable - HAQ 1 - FDA-IR', null, ' at line 1
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120) ~[mysql-connector-java-8.0.15.jar:8.0.15]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.15.jar:8.0.15]
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.15.jar:8.0.15]
    at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:970) ~[mysql-connector-java-8.0.15.jar:8.0.15]
    at com.mysql.cj.jdbc.ClientPreparedStatement.executeUpdateInternal(ClientPreparedStatement.java:1109) ~[mysql-connector-java-8.0.15.jar:8.0.15]
    at

我在我的application.properties文件中设置了以下属性，它以前可以工作，但现在它不起作用，我无法弄清楚为什么。 

spring.jpa.properties.hibernate.globally_quoted_identifiers=true

现在我必须在我的模型定义中手动转义列才能使其工作。

@Column(name = "`who`")
private String who;

@Column(name = "`when`")
private Date when;

@Column(name = "`why`")
private String why;

我该如何进一步调试？我怎样才能确保该物业正在被取走？

标签： javahibernatespring-boot

解决方案

我们在 Spring Boot 项目中使用了多个 DB 连接。所以所有的hibernate属性都需要在DataSourceConfigurationFile

@Primary
@Bean
public LocalContainerEntityManagerFactoryBean idotdbEntityManager() {
    final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
    em.setDataSource(idotdbDataSource());
    em.setPackagesToScan("com.novartis.idot.model");

    final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    em.setJpaVendorAdapter(vendorAdapter);
    final HashMap<String, Object> properties = new HashMap<>();
    properties.put("hibernate.physical_naming_strategy", SpringPhysicalNamingStrategy.class.getName());
    properties.put("hibernate.implicit_naming_strategy", SpringImplicitNamingStrategy.class.getName());
    properties.put("hibernate.hbm2ddl.auto", env.getProperty("spring.hibernate.ddl-auto"));
    properties.put("hibernate.dialect", env.getProperty("spring.hibernate.dialect"));
    properties.put("hibernate.globally_quoted_identifiers", env.getProperty("spring.jpa.properties.hibernate.globally_quoted_identifiers"));
    properties.put("hibernate.id.new_generator_mappings",  env.getProperty("spring.jpa.properties.hibernate.id.new_generator_mappings"));
    em.setJpaPropertyMap(properties);
    return em;
}


@Bean
@Primary
@ConfigurationProperties(prefix="spring.datasource")
public DataSourceProperties idotdbDataSourceProperties() {
    return new DataSourceProperties();
}

@Bean
@Primary
@ConfigurationProperties(prefix="spring.datasource")
public DataSource idotdbDataSource() {
    return idotdbDataSourceProperties().initializeDataSourceBuilder().build();
}

@Primary
@Bean
public PlatformTransactionManager idotdbTransactionManager() {
    final JpaTransactionManager transactionManager = new JpaTransactionManager();
    transactionManager.setEntityManagerFactory(idotdbEntityManager().getObject());
    return transactionManager;
}

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