使用可重载属性时未生成基于Spring Boot H2数据库文件

Question

问题 ：

我正在开发一个Spring Boot API ，该服务的主要目的是就数据源而言是通用的，因此我使用了具有许多端点的Restcontroller ，其中之一是设置h2.datasource.properties文件，直到此处的属性为生成的我可以在浏览器上访问H2-控制台 ，但是问题是我找不到数据库的H2生成的文件

这是我的数据源配置类：

package com.gmstest.gmstestWS.config;

import javax.sql.DataSource;

import org.apache.commons.dbcp.BasicDataSource;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import com.gmstest.gmstestWS.entities.Datasource;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = "com.gmstest.gmstestWS.repositories", entityManagerFactoryRef = "h2EntityManagerFactory", transactionManagerRef = "h2TransactionManager")
public class H2DSConfig {


    @Bean
    @ConfigurationProperties("spring.datasource")
    @Primary
    public DataSourceProperties h2DataSourceProperties() {
        return new DataSourceProperties();
    }

    @Bean
    @ConfigurationProperties("spring.datasource")
    public DataSource h2DataSource() {
        return h2DataSourceProperties().initializeDataSourceBuilder().type(BasicDataSource.class).build();
    }

    @Bean(name = "h2EntityManagerFactory")
    public LocalContainerEntityManagerFactoryBean h2EntityManagerFactory(EntityManagerFactoryBuilder builder) {
        return builder.dataSource(h2DataSource()).packages(Datasource.class).build();
    }

    @Bean
    public PlatformTransactionManager h2TransactionManager(
            final @Qualifier("h2EntityManagerFactory") LocalContainerEntityManagerFactoryBean h2EntityManagerFactory) {
        return new JpaTransactionManager(h2EntityManagerFactory.getObject());
    }

}

这是我的启动器服务（将属性生成到h2.datasource.properties的服务）

package com.gmstest.gmstestWS.services;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.gmstest.gmstestWS.config.ApplicationProperties;
import com.gmstest.gmstestWS.core.ReloadableProperties;
import com.gmstest.gmstestWS.entities.Datasource;

import lombok.Data;
import lombok.extern.slf4j.Slf4j;

@Data
@Service
@Slf4j
public class H2InitiatorService {

    public Datasource h2ds;

    @Autowired
    ReloadableProperties rp;

    @Autowired
    ApplicationProperties appProperties;

    public Boolean generateDSpropsFile(Datasource ds) throws Exception {
        try {
            if (isDatasourceAlreadyConfigured() == false) {
                rp.setProperty("gmartws.datasource.h2.configured", "true");
                log.info("Generating H2 Datasource properties file");
                rp.setProperty("spring.datasource.driver_class_name", ds.getDriver_class_name());
                rp.setProperty("spring.datasource.url", ds.getUrl());
                rp.setProperty("spring.datasource.username", ds.getUsername());
                rp.setProperty("spring.datasource.password", ds.getPassword());
                rp.setProperty("spring.h2.console.enabled", "true");
                rp.setProperty("spring.h2.console.path", "/h2");
                rp.setProperty("spring.jpa.hibernate.ddl-auto", "create");
                rp.setProperty("spring.jpa.database-platform", "org.hibernate.dialect.H2Dialect");
                rp.setProperty("spring.jpa.hibernate.naming-strategy", "org.hibernate.cfg.ImprovedNamingStrategy");
                rp.setProperty("spring.jpa.show-sql", "true");
                rp.setProperty("spring.jpa.properties.hibernate.search.default.directory_provider", "filesystem");
                rp.setProperty("spring.jpa.properties.hibernate.search.default.indexBase", "/data/index");
                appProperties.setDriver_class_name(ds.getDriver_class_name());
                appProperties.setPassord(ds.getPassword());
                appProperties.setUsername(ds.getUsername());
                appProperties.setUrl(ds.getUrl());
                rp.save();
            }

        } catch (Exception e) {
            log.error(" DSService -> generateDSpropsFile| Message : " + e.getMessage());
            throw new Exception("DSService -> generateDSpropsFile| Message : " + e.getMessage());
        }

        return true;
    }

    public Boolean isDatasourceAlreadyConfigured() {
        log.info("is H2 Datasource already generated ? :  "
                + Boolean.parseBoolean((rp.getProperty("gmartws.datasource.h2.configured") != null)
                        ? rp.getProperty("gmartws.datasource.h2.configured")
                        : "false"));
        return Boolean.parseBoolean((rp.getProperty("gmartws.datasource.h2.configured") != null)
                ? rp.getProperty("gmartws.datasource.h2.configured")
                : "false");
    }
}

这是h2.datasource.properties中生成的属性：

gmartws.datasource.h2.configured = true
spring.datasource.url = jdbc:h2:file:~/Databases/initiatorDB
spring.datasource.username = sa
spring.datasource.password = sa
spring.h2.console.enabled = true
spring.h2.console.path = /h2
spring.jpa.hibernate.ddl-auto = create
spring.jpa.database-platform = org.hibernate.dialect.H2Dialect
spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy
spring.jpa.show-sql = true
spring.jpa.properties.hibernate.search.default.directory_provider = filesystem
spring.jpa.properties.hibernate.search.default.indexBase = /data/index

当我尝试将数据插入数据库（不存在）时，出现了休眠异常：

2019-11-30 17:23:15.696 ERROR 7780 --- [nio-8088-exec-2] o.h.engine.jdbc.spi.SqlExceptionHelper   : Sequence "HIBERNATE_SEQUENCE" not found; SQL statement:
call next value for hibernate_sequence [90036-200]

您能告诉我为什么没有生成数据库吗？