java - hbm2ddl 模式导出不会导致使用 Spring Security 创建实体

Question

我使用 Spring 入门内容。 我通常可以在项目 accessing-data-mysql 中创建实体，但不能在 securing-web-complete 中创建任何实体。 我制作了相同的依赖项并添加了 application.properties 文件，就像在项目 accessing-data-mysql 中一样

application.properties 文件

spring.jpa.generate-ddl=true
spring.jpa.hibernate.ddl-auto=create
spring.datasource.url=jdbc:mysql://localhost:3306/sportfacilitydb
spring.datasource.username=root
spring.datasource.password=root
spring.thymeleaf.mode=LEGACYHTML5
spring.thymeleaf.cache=false

但没有任何反应，所以我将此归咎于 spring-security。

运行应用程序后在控制台上我可以注意到线条:

2017-01-29 12:19:05.511  INFO 9532 --- [  restartedMain] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2017-01-29 12:19:05.538  INFO 9532 --- [  restartedMain] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
    name: default
    ...]
2017-01-29 12:19:05.667  INFO 9532 --- [  restartedMain] org.hibernate.Version                    : HHH000412: Hibernate Core {5.0.11.Final}
2017-01-29 12:19:05.670  INFO 9532 --- [  restartedMain] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2017-01-29 12:19:05.676  INFO 9532 --- [  restartedMain] org.hibernate.cfg.Environment            : HHH000021: Bytecode provider name : javassist
2017-01-29 12:19:05.745  INFO 9532 --- [  restartedMain] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2017-01-29 12:19:06.303  INFO 9532 --- [  restartedMain] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
2017-01-29 12:19:06.550  INFO 9532 --- [  restartedMain] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000227: Running hbm2ddl schema export
2017-01-29 12:19:06.552  INFO 9532 --- [  restartedMain] org.hibernate.tool.hbm2ddl.SchemaExport  : HHH000230: Schema export complete
2017-01-29 12:19:06.593  INFO 9532 --- [  restartedMain] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'

所以它说模式已创建并导出？但是为什么我在数据库中看不到它呢？ 我尝试创建的实体类:

User.java 文件

package User;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

@Entity // This tells Hibernate to make a table out of this class
public class User {
    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Integer id;

    private String name;

    private String email;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }


}

这是我的 SpringSecurity 配置文件:

WebSecurityConfig.java

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .authorizeRequests()
                .antMatchers("/", "/index", "/register", "/aboutus", "/contactus", "/css/**", "/images/**", "/bootstrap/**").permitAll()
                .anyRequest().authenticated()
                .and()
            .formLogin()
                .loginPage("/login")
                .permitAll()
                .defaultSuccessUrl("/index")
                .and()
            .logout()
                .permitAll()
                .logoutSuccessUrl("/index");


    }

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth
            .inMemoryAuthentication()
                .withUser("user").password("password").roles("USER");
    }
}

和Application.java文件:

@SpringBootApplication
public class Application {

    public static void main(String[] args) throws Throwable {
        SpringApplication.run(Application.class, args);
    }

}

我试图完全删除 application.properties 文件，构建项目返回如下:

APPLICATION FAILED TO START
***************************

Description:

Cannot determine embedded database driver class for database type NONE

所以我想 App 正在连接到数据库

整个pom.xml文件:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.springframework</groupId>
    <artifactId>gs-securing-web</artifactId>
    <version>0.1.0</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.4.RELEASE</version>
    </parent>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.thymeleaf.extras/thymeleaf-extras-springsecurity3 -->
        <dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-springsecurity4</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>



        <dependency>
            <groupId>net.sourceforge.nekohtml</groupId>
            <artifactId>nekohtml</artifactId>
            <version>1.9.21</version>
        </dependency>
        <!-- tag::security[] -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <!-- end::security[] -->

        <!-- JPA Data (We are going to use Repositories, Entities, Hibernate, etc...) -->

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

        <!-- Use MySQL Connector-J -->

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>



    </dependencies>

    <properties>
        <java.version>1.8</java.version>
    </properties>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

更新 这实际上是我的 fatal error 。根据 Spring-boot 文档:

By default all packages below your main configuration class (the one annotated with @EnableAutoConfiguration or @SpringBootApplication) will be searched.

所以我有第二个名为“User”的并行包，它没有被 SpringBootApplication 配置找到。

Answer 1

我想你忘了在你的 application.properties 中添加这个属性

spring.datasource.driver-class-name=com.mysql.jdbc.Driver

不要忘记将它添加到您的 pom.xml 中:

<dependency>
 <groupId>mysql</groupId>
 <artifactId>mysql-connector-java</artifactId>
 <version>${version}</version>
</dependency>