SpringBoot H2安装问题

Question

配置详细信息

1. 弹簧：2.6
2. IDE:Intellij
3. Java 11

我创建了一个带有插件的spring-boot应用程序

1. Spring Web
2. H2数据库

pom.xml

<?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>guru.springframework</groupId>
<artifactId>spring5webapp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring5webapp</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>

</project>

应用程序属性

spring.h2.console.enabled=true
spring.datasource.url=jdbc:h2:mem:AS;
spring.datasource.driverClassName=org.h2.Driver
spring.h2.console.settings.trace=true

commandLineRunner

@Component
public class BootStrapData implements CommandLineRunner {

private final AuthorRepository authorRepository;
private final BookRepository bookRepository;
private final PublisherRepository publisherRepository;
public BootStrapData(AuthorRepository authorRepository, BookRepository bookRepository,
PublisherRepository publisherRepository) {
this.authorRepository = authorRepository;
this.bookRepository = bookRepository;
this.publisherRepository = publisherRepository;
}
@Override
public void run(String... args) throws Exception {
Author eric = new Author("Eric", "Evans");
authorRepository.save(eric);
System.out.println("Started in bootstrap");
System.out.println("Number of Authors " + authorRepository.count());
}
}

authorRepository.java

public interface AuthorRepository extends CrudRepository<Author, Long> {
}

Author.java(Pojo(

package guru.springframework.spring5webapp.domain;
import javax.persistence.*;
import java.util.HashSet;
import java.util.Set;

@Entity
public class Author {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String firstName;
private String lastName;
@ManyToMany(mappedBy = "authors")
private Set<Book> books = new HashSet<>();
public Author() {
}
public Author(String firstName, String lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Set<Book> getBooks() {
return books;
}
public void setBooks(Set<Book> books) {
this.books = books;
}
@Override
public String toString() {
return "Author{" +
"id=" + id +
", firstName='" + firstName + ''' +
", lastName='" + lastName + ''' +
", books=" + books +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Author author = (Author) o;
return id != null ? id.equals(author.id) : author.id == null;
}
@Override
public int hashCode() {
return id != null ? id.hashCode() : 0;
}
}

当我启动应用程序并转到http://localhost:8080/h2-控制台，我看到的JDBC Url为jdbc:h2:~/test而不是jdbc:h2:mem:AS。登录控制台时，我没有看到Author表。

我在stackoverflow中看到了以下帖子的内容，但没有使用

1. 帖子1
2. Post2

我的github项目在这里，它有更多的Pojos交互项目中的错误是什么？

Answer 1

正如用户g00glen00b在评论中提到的，必须在H2控制台中显式输入URL。