Springboot不會產生

我使用springboot 1.4.4.RELEASE mysql數據庫和數據庫配置如下數據庫模式：Springboot不會產生

spring.datasource.url=jdbc:mysql://localhost:3306/springboot?autoReconnect=true&useSSL=false 
spring.datasource.username = root 
spring.datasource.password = root 
spring.datasource.testWhileIdle = true 
spring.datasource.validationQuery = SELECT 1 
spring.jpa.show-sql = true 
spring.jpa.hibernate.ddl-auto = create 
spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy 
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect

我的主類：

@SpringBootApplication 
public class Application extends SpringBootServletInitializer { 

    private static final Logger log = LoggerFactory.getLogger(Application.class); 

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

}

我的實體類（在分類主分類）：

package org.spring.entities; 

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

@Entity 
public class User { 

    @Id 
    @GeneratedValue(strategy=GenerationType.AUTO) 
    private Long id; 
    private String firstName; 
    private String 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; 
    } 



    protected User() {} 

    public User(Long id) { 
     this.id= id; 
    } 

    public User(String firstName, String lastName) { 
     this.firstName = firstName; 
     this.lastName = lastName; 
    } 

    @Override 
    public String toString() { 
     return String.format(
       "User[id=%d, firstName='%s', lastName='%s']", 
       id, firstName, lastName); 
    } 

}

啓動日誌：

2017-03-25 14:36:34.219 INFO 2816 --- [   main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default' 
2017-03-25 14:36:34.245 INFO 2816 --- [   main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [ 
    name: default 
    ...] 
2017-03-25 14:36:34.371 INFO 2816 --- [   main] org.hibernate.Version     : HHH000412: Hibernate Core {5.0.11.Final} 
2017-03-25 14:36:34.373 INFO 2816 --- [   main] org.hibernate.cfg.Environment   : HHH000206: hibernate.properties not found 
2017-03-25 14:36:34.375 INFO 2816 --- [   main] org.hibernate.cfg.Environment   : HHH000021: Bytecode provider name : javassist 
2017-03-25 14:36:34.438 INFO 2816 --- [   main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final} 
2017-03-25 14:36:34.854 INFO 2816 --- [   main] org.hibernate.dialect.Dialect   : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect 
2017-03-25 14:36:35.610 INFO 2816 --- [   main] org.hibernate.tool.hbm2ddl.SchemaExport : HHH000227: Running hbm2ddl schema export 
Hibernate: drop table if exists user 
Hibernate: create table user (id bigint not null auto_increment, first_name varchar(255), last_name varchar(255), primary key (id)) 
2017-03-25 14:36:35.633 INFO 2816 --- [   main] org.hibernate.tool.hbm2ddl.SchemaExport : HHH000230: Schema export complete 
2017-03-25 14:36:35.688 INFO 2816 --- [   main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default' 
2017-03-25 14:36:36.704 INFO 2816 --- [   main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot[email protected]4a9c188f: startup date [Sat Mar 25 14:36:30 AST 2017]; root of context hierarchy

的問題是，我該創建查詢生成，但沒有得到創建表，請大家指教爲什麼我收到這個問題以及如何解決它的控制檯中看到。

來源

2017-03-25 Mahmoud Saleh

爲什麼你認爲表格尚未創建？你有沒有分享失敗？ –

看來您的數據庫網址沒有在spring.datasource.url之前。

你也不要有驅動程序中指定似乎：

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

而且最後要確保你有一個驅動程序在你的pom.xml的依賴

來源

2017-03-25 13:12:31

您不需要驅動程序，因爲spring會檢測到您和旁邊的驅動程序，因此對於JDBC 4.0（缺省情況下已註冊和檢測到），也不再需要該驅動程序。 –

看來這個問題是從日食下載工件，當我用maven命令行下載artifcats它工作得很好！

來源

2017-03-26 12:43:51

Springboot不會產生

回答

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