Spring boot应用程序执行时没有任何错误，但没有在后端创建任何表

Question

我已经创建了一个Spring Boot和RestAPI应用程序项目。所有东西都运行并执行，但它没有在后端（MySQL）中创建任何表。它在控制台中也没有显示任何错误。我对spring boot和API是新手。

下面是我的代码：

spring.jpa.hibernate.ddl-auto=update
spring.datasource.url=jdbc:mysql://localhost:3306/EjikeDB?createDatabaseIfNotExist=true&&autoReconnect=true&verifyServerCertificate=false&useSSL=false&requireSSL=false serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=MacRoot31
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.generate-ddl=true


spring.jpa.show-sql=true


spring.datasource.initialization-mode=always

########### SMTP Email Properties ###################
spring.mail.host=smtp.mailtrap.io
spring.mail.port=465
spring.mail.username=f26e44090838e5
spring.mail.password=b2a684f17dbfc2
spring.mail.protocol=smtp


############ JWT Properties #####################
jwt.expiration.time=90000

user.java：

import java.util.List;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;

import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.validation.constraints.NotBlank;
import java.time.Instant;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;


//@EnableAutoConfiguration
@EntityScan
@Data
@AllArgsConstructor
@NoArgsConstructor
@Entity
@Table(name = "MarketplaceUser")
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private int userid;
    private String firstname;
    private String lastname;
    @NotBlank(message = "Username is required")
    private String userName;
    @NotBlank(message = "Email is required")
    private String email;
    @NotBlank(message = "Password is required")
    private String password;
    private String phoneNumber;
    private String country;
    private String provinceState;
    private String city;
    private String street;
    @NotBlank(message = "Postcode is required")
    private String postalCode;
    private String roles;
    @OneToMany(mappedBy = "user")
    private List<Product> product;
    private Instant created;
    private boolean enabled;
    
    
    
    
    
    
    
    

}

我尝试添加spring.jpa.hibernate.ddl-auto=update和spring.jpa.hibernate.ddl-auto=create

CreateDatabaseIFNotExist=true&AutoReConnect=true&VerifyServerCertificate=false&UsessL=false&RequiressL=false添加到我的application.properties文件。

这是项目结构。如果这里面有什么错误的话。

Answer 1

最近，spring没有创建mysql表，但application.properties中的这一行解决了这个问题spring.jpa.hibernate.ddl-auto=create