无法为“ConnectionFactoryOptions”创建 ConnectionFactory...可用驱动程序：[无]

如何解决无法为“ConnectionFactoryOptions”创建 ConnectionFactory...可用驱动程序：[无]

我在启动应用程序时遇到此错误，我在使用 JDBC 时没有问题，但是当我切换到 R2DBC 时，我遇到了这个错误。

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myUserDetailService' defined in file [C:\Users\e.khodadadi\Desktop\e-authenticationadmin\target\classes\com\datx\eauthenticationadmin\service\service\MyUserDetailService.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myUserDetailRepository' defined in com.datx.eauthenticationadmin.service.repository.MyUserDetailRepository defined in @EnableR2dbcRepositories declared on R2dbcRepositoriesAutoConfigureRegistrar.EnableR2dbcRepositoriesConfiguration: Cannot resolve reference to bean 'r2dbcEntityTemplate' while setting bean property 'entityOperations'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.data.r2dbc.R2dbcDataAutoConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'r2dbcDatabaseClient' defined in class path resource [org/springframework/boot/autoconfigure/r2dbc/ConnectionFactoryDependentConfiguration.class]: Unsatisfied dependency expressed through method 'r2dbcDatabaseClient' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/r2dbc/ConnectionFactoryConfigurations$Generic.class]: Bean instantiation via factory method Failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.r2dbc.spi.ConnectionFactory]: Factory method 'connectionFactory' threw exception; nested exception is java.lang.IllegalStateException: Unable to create a ConnectionFactory for 'ConnectionFactoryOptions{options={driver=postgresql,password=REDACTED,database=e_auth,host=127.0.0.1,user=e_auth}}'. Available drivers: [ None ]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:229) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.autowireConstructor(AbstractAutowireCapablebeanfactory.java:1354) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBeanInstance(AbstractAutowireCapablebeanfactory.java:1204) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.doCreateBean(AbstractAutowireCapablebeanfactory.java:564) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.AbstractAutowireCapablebeanfactory.createBean(AbstractAutowireCapablebeanfactory.java:524) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.Abstractbeanfactory.lambda$doGetBean$0(Abstractbeanfactory.java:335) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:333) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:208) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.beans.factory.support.DefaultListablebeanfactory.preInstantiateSingletons(DefaultListablebeanfactory.java:944) ~[spring-beans-5.3.8.jar:5.3.8]
    at org.springframework.context.support.AbstractApplicationContext.finishbeanfactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.8.jar:5.3.8]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.8.jar:5.3.8]
    at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:64) ~[spring-boot-2.5.2.jar:2.5.2]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-2.5.2.jar:2.5.2]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434) ~[spring-boot-2.5.2.jar:2.5.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) ~[spring-boot-2.5.2.jar:2.5.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) ~[spring-boot-2.5.2.jar:2.5.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1332) ~[spring-boot-2.5.2.jar:2.5.2]
    at com.datx.eauthenticationadmin.EAuthenticationadminApplication.main(EAuthenticationadminApplication.java:10) ~[classes/:na]
    ......

    Process finished with exit code 1

虽然我认为我的问题与我的Postgresql配置有关。这是我的application.properties：

logging.pattern.level=INFO
server.port=8985

logging.level.org.springframework.data.r2dbc=DEBUG

spring.r2dbc.url=r2dbc:postgresql://localhost/DB
spring.r2dbc.username=root
spring.r2dbc.password=RooT1234

还有MyUserDetailService.class

package com.datx.eauthenticationadmin.service.service;

import com.datx.eauthenticationadmin.service.repository.MyUserDetailRepository;
import lombok.requiredArgsConstructor;
import org.springframework.security.core.userdetails.ReactiveUserDetailsService;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Service;
import reactor.core.publisher.Mono;

@requiredArgsConstructor
@Service
public class MyUserDetailService implements ReactiveUserDetailsService {

    private final MyUserDetailRepository myUserDetailsRepository;

    @Override
    public Mono<UserDetails> findByUsername(String username) {

        return myUserDetailsRepository.findByUsername(username)
                .cast(UserDetails.class);
    }
}

还有R2DBCConfig课

@Configuration
public class R2DBCConfig {
    @Bean
    public ConnectionFactory connectionFactory() {
        return ConnectionFactories.get(
                ConnectionFactoryOptions.builder()
                        .option(DRIVER,"postgresql")
                        .option(HOST,"localhost")
                        .option(PORT,5432)
                        .option(USER,"root")
                        .option(PASSWORD,"RooT1234")
                        .option(DATABASE,"DB")
                        .build());
    }

}

解决方法

已解决

这是一个虚拟错误，我没有添加 PostgreSQL 驱动程序，而且我输入了 username 和 password 错误。所以代码清晰正确，任何人都可以使用。如果你想要另一个特定的类，只需在评论中告诉我，我会把它放在代码中。