我正在用java 17在Spring boot 3中编写Restful API，我无法创建表。有人能帮忙吗
- POM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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.0.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.userservice</groupId>
<artifactId>UserService</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>UserService</name>
<description>user service</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jdbc</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
<version>8.0.30</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>- 控制器类**
package com.userservice.UserService.controller;
import java.util.List;
@RestController
@RequestMapping("/users")
public class mainController {
@Autowired
private Serviceimpl userService;
@PostMapping
public ResponseEntity<User> createUser(@RequestBody User user){
User user1 = userService.saveUser(user);
return ResponseEntity.status(HttpStatus.CREATED).body(user1);
}
@GetMapping("/{userId}")
public ResponseEntity<User> getSingleUser(@PathVariable String userId){
User user = userService.getUser(userId);
return ResponseEntity.ok(user);
}
@GetMapping("/")
public ResponseEntity<List<User>> getAllUser(){
List<User> allUser = userService.getAllUser();
return ResponseEntity.ok(allUser);
}
}- DAO层**
package com.userservice.UserService.repos;
@Repository
public interface userRepo extends JpaRepository<User, String> {
}- 我的实体类**
package com.userservice.UserService.Entities;
import jakarta.persistence.*;
import lombok.*;
@Getter
@Setter
@NoArgsConstructor
@AllArgsConstructor
@Builder
@Entity
@Table(name = "microsusers")
public class User {
@Id
@Column(name="id")
private String UserId;
@Column (name="Name",length = 200)
private String name;
@Column(name = "Abouts")
private String about;
}- 服务类别**
package com.userservice.UserService.service;
@Service
public class Serviceimpl implements Services {
@Autowired
private userRepo userrepo;
@Override
public User saveUser(User user) {
String randomUserId = UUID.randomUUID().toString();
user.setUserId(randomUserId);
return userrepo.save(user);
}
@Override
public List<User> getAllUser() {
return userrepo.findAll();
}
@Override
public User getUser(String userId) {
return userrepo.findById(userId)
}
@Override
public void DeleteUser(String userId) {
// TODO Auto-generated method stub
}
}- 服务接口**
package com.userservice.UserService.service;
public interface Services {
User saveUser(User user);
List<User> getAllUser();
User getUser(String userId);
void DeleteUser (String userId) ;
}- 应用程序. yml文件**
server:
port: 8081
spring:
datasource:
driverClassName: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/TrialDB
username: root
password: pewpewpew
jpa:
generate-ddl: true
hibernate:
ddl-auto: create
show-sql: true- 输出**
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v3.0.3)
2023-03-05T18:30:56.514+05:30 INFO 1412 --- [ main] c.u.UserService.UserServiceApplication : Starting UserServiceApplication using Java 17.0.6 with PID 1412 (D:\ALL CODES\Microservice\UserService\target\classes started by Bhavya in D:\ALL CODES\Microservice\UserService)
2023-03-05T18:30:56.517+05:30 INFO 1412 --- [ main] c.u.UserService.UserServiceApplication : No active profile set, falling back to 1 default profile: "default"
2023-03-05T18:30:56.974+05:30 INFO 1412 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode
2023-03-05T18:30:56.975+05:30 INFO 1412 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JDBC repositories in DEFAULT mode.
2023-03-05T18:30:56.987+05:30 INFO 1412 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 9 ms. Found 0 JDBC repository interfaces.
2023-03-05T18:30:56.994+05:30 INFO 1412 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode
2023-03-05T18:30:56.995+05:30 INFO 1412 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2023-03-05T18:30:56.999+05:30 INFO 1412 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 0 ms. Found 0 JPA repository interfaces.
2023-03-05T18:30:57.408+05:30 INFO 1412 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8081 (http)
2023-03-05T18:30:57.418+05:30 INFO 1412 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2023-03-05T18:30:57.419+05:30 INFO 1412 --- [ main] o.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/10.1.5]
2023-03-05T18:30:57.523+05:30 INFO 1412 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2023-03-05T18:30:57.523+05:30 INFO 1412 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 967 ms
2023-03-05T18:30:57.686+05:30 INFO 1412 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2023-03-05T18:30:57.748+05:30 INFO 1412 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 6.1.7.Final
2023-03-05T18:30:57.972+05:30 INFO 1412 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2023-03-05T18:30:58.141+05:30 INFO 1412 --- [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Added connection conn0: url=jdbc:h2:mem:8a12c987-5920-49a8-bed8-3e532880482f user=ROOT
2023-03-05T18:30:58.143+05:30 INFO 1412 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2023-03-05T18:30:58.167+05:30 INFO 1412 --- [ main] SQL dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL8Dialect
2023-03-05T18:30:58.171+05:30 WARN 1412 --- [ main] org.hibernate.orm.deprecation : HHH90000026: MySQL8Dialect has been deprecated; use org.hibernate.dialect.MySQLDialect instead
2023-03-05T18:30:58.466+05:30 WARN 1412 --- [ main] org.hibernate.orm.deprecation : HHH90000021: Encountered deprecated setting [javax.persistence.schema-generation.database.action], use [jakarta.persistence.schema-generation.database.action] instead
2023-03-05T18:30:58.467+05:30 INFO 1412 --- [ main] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2023-03-05T18:30:58.476+05:30 INFO 1412 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2023-03-05T18:30:58.503+05:30 WARN 1412 --- [ main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2023-03-05T18:30:58.855+05:30 INFO 1412 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8081 (http) with context path ''
2023-03-05T18:30:58.862+05:30 INFO 1412 --- [ main] c.u.UserService.UserServiceApplication : Started UserServiceApplication in 2.717 seconds (process running for 3.231)- 主类**
package com.userservice.UserService;
@SpringBootApplication
@EnableConfigurationProperties
@EntityScan(basePackages = {"com.userservice.UserService.Entity"})
public class UserServiceApplication {
public static void main(String[] args) {
SpringApplication.run(UserServiceApplication.class, args);
}
}我也试过添加不同的方言，比如：
spring.jpa.properties.javax.persistence.schema-generation.database.action=create
spring.jpa.properties.javax.persistence.schema-generation.create-database-schemas=true
spring.jpa.properties.javax.persistence.schema-generation.create-source=metadata
spring.jpa.properties.javax.persistence.schema-generation.drop-source=metadata
spring.jpa.generate-ddl=true
spring.jpa.hibernate.ddl-auto=create
spring.jpa.defer-datasource-initialization=true
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL8Dialect
spring.jpa.properties.hibernate.dialect.storage_engine=innodb请帮助我，我被困在这一点上真的很长一段时间，这是完美的工作在Spring2
2条答案
按热度按时间lnlaulya1#
两件事：
test添加到h2依赖项：runtime：cbjzeqam2#
您正在连接到某个h2数据库：
刚刚看了一下我的一个使用postgres的Spring 3应用程序，但它仍然不应该谈论H2。
确保类路径上没有H2，或者至少只用于测试，不过测试容器对于测试来说也是更好的选择。
同时检查您的driverClassName。从未见过您放置在那里的driverClassName。