Spring 中未从 data.sql 加载初始数据

Question

我的 Spring 应用程序中有以下 Config.java：

package config;

import java.util.Properties;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ComponentScans;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.jdbc.datasource.init.DatabasePopulator;
import org.springframework.jdbc.datasource.init.DatabasePopulatorUtils;
import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBean;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.servlet.view.InternalResourceViewResolver;


@Configuration
@EnableTransactionManagement
@EnableAutoConfiguration(exclude = { HibernateJpaAutoConfiguration.class})
@ComponentScans(value = { @ComponentScan("boot.entry"),
          @ComponentScan("Controller"),
          @ComponentScan("DAO"),
          @ComponentScan("Model"),
          @ComponentScan("securityHash"),
          @ComponentScan("Service")})

public class Config {

     @Value("${spring.datasource.driver-class-name}")
        private String SPRING_DRIVER;

        @Value("${spring.datasource.password}")
        private String SPRING_PASSWORD;

        @Value("${spring.datasource.url}")
        private String SPRING_URL;

        @Value("${spring.datasource.username}")
        private String SPRING_USERNAME;
        
        @Value("${hibernate.show_sql}")
        private String HIBERNATE_SHOW_SQL;

        @Value("${spring.jpa.properties.hibernate.dialect}")
        private String HIBERNATE_DIALECT;
        
        @Value("${entitymanager.packagesToScan}")
        private String ENTITYMANAGER_PACKAGES_TO_SCAN;

        @Value("${spring.devtools.livereload.enabled}")
        private String LIVE_RELOAD;
        
        @Value("${spring.jpa.open-in-view}")
        private String OPEN_IN_VIEW;
        
        @Value("${spring.datasource.initialization-mode}")
        private String INITIALIZATION_MODE;

        @Value("${spring.jpa.hibernate.ddl-auto}")
        private String HIBERNATE_HBM2DDL_AUTO;

        @Value("${spring.datasource.continue-on-error}")
        private String CONTINUE_ON_ERROR;
        
        @Value("${spring.jpa.generate-ddl}")
        private String GENERATE_DDL;
    

        @Bean
        public LocalSessionFactoryBean sessionFactory() {
            LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
            sessionFactory.setDataSource(dataSource());
            sessionFactory.setPackagesToScan(ENTITYMANAGER_PACKAGES_TO_SCAN);
            Properties hibernateProperties = new Properties();
            hibernateProperties.put("spring.jpa.properties.hibernate.dialect", HIBERNATE_DIALECT);
            hibernateProperties.put("hibernate.show_sql", HIBERNATE_SHOW_SQL);
            hibernateProperties.put("spring.devtools.livereload.enabled", LIVE_RELOAD);
            hibernateProperties.put("spring.jpa.open-in-view", OPEN_IN_VIEW);
            hibernateProperties.put("spring.datasource.initialization-mode", INITIALIZATION_MODE);
            hibernateProperties.put("hibernate.hbm2ddl.auto", HIBERNATE_HBM2DDL_AUTO);
            hibernateProperties.put("spring.datasource.continue-on-error", CONTINUE_ON_ERROR);
            hibernateProperties.put("spring.jpa.generate-ddl", GENERATE_DDL);
            sessionFactory.setHibernateProperties(hibernateProperties);
            return sessionFactory;
        }

        @Bean
        public DataSource dataSource() {
            DriverManagerDataSource dataSource = new DriverManagerDataSource();
            dataSource.setDriverClassName(SPRING_DRIVER);
            dataSource.setUrl(SPRING_URL);
            dataSource.setUsername(SPRING_USERNAME);
            dataSource.setPassword(SPRING_PASSWORD);
            return dataSource;
        }

        @Bean
        public HibernateTransactionManager transactionManager() {
            HibernateTransactionManager txManager = new HibernateTransactionManager();
            txManager.setSessionFactory(sessionFactory().getObject());
            return txManager;
        }
        
        @Bean
        public InternalResourceViewResolver jspViewResolver() {
            InternalResourceViewResolver resolver= new InternalResourceViewResolver();
            resolver.setPrefix("/views/");
            resolver.setSuffix(".jsp");
            return resolver;
        } 
}

以及 src/main/resources/ 文件夹中的以下 application.properties 文件：

spring.datasource.url=jdbc:mysql://localhost:3306/myDatabase?allowPublicKeyRetrieval=true&useSSL=false&serverTimezone=UTC&jdbcCompliantTruncation=false
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=mysql
entitymanager.packagesToScan=Model
hibernate.show_sql=true
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect
spring.devtools.livereload.enabled=true
spring.jpa.open-in-view=true
spring.datasource.initialization-mode=always
spring.jpa.hibernate.ddl-auto=create-drop
spring.datasource.continue-on-error=true
spring.jpa.generate-ddl=true

以及 src/main/resources 中的以下 data.sql：

INSERT INTO myDatabase.table1 
(column1, column2, column3, column4, column5) VALUES ('ABC', '100', '1000000', '100', '0');
INSERT INTO myDatabase.table1 
(column1, column2, column3, column4, column5) VALUES ('DEF', '100', '1000000', '100', '0');
INSERT INTO myDatabase.table1 
(column1, column2, column3, column4, column5) VALUES ('GHI', '100', '1000000', '100', '0');
 

当我运行应用程序时，正在创建所有表。 这是来自日志：

Hibernate: drop table if exists products
Hibernate: create table table1 (column1 bigint not null auto_increment, column2 integer, column3 integer, column4 bigint, column5 bigint, primary key (column1)) engine=InnoDB
2020-11-19 00:27:38.931  INFO 5580 --- [  restartedMain] o.h.t.schema.internal.SchemaCreatorImpl  : HHH000476: Executing import script 'org.hibernate.tool.schema.internal.exec.ScriptSourceInputNonExistentImpl@2e27f3fe'

但是数据没有插入到表中。 请帮忙。

Answer 1

你的 SQL 查询是错误的（column1 是 bigint 的主键类型，但你试图插入字符串（你不能插入任何数据。它是自动递增的）。这就是它不插入的原因。

查询应该是：----

INSERT INTO myDatabase.table1 
( column2, column3, column4, column5) VALUES (100,100, 401421228216, 401421228216);