由于缺少ServletWebServerFactory bean,无法启动ServletWebServerApplicationContext [英] Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean
问题描述
当我使用主应用程序运行应用程序时,我在consoleUnable中收到错误以启动Web服务器;嵌套异常是org.springframework.context.ApplicationContextException:由于缺少ServletWebServerFactory bean,无法启动ServletWebServerApplicationContext。
When i run the application using main application, i got the error in consoleUnable to start web server; nested exception is org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.
主应用程序
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
Servlet初始化程序
Servlet Initializer
public class ServletInitializer extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
}
build.gradle
build.gradle
buildscript {
ext {
springBootVersion = '2.0.0.M4'
}
repositories {
jcenter()
mavenCentral()
maven { url "https://repo.spring.io/snapshot" }
maven { url "https://repo.spring.io/milestone" }
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
plugins {
id "org.sonarqube" version "2.5"
}
apply plugin: 'java'
apply plugin: 'idea'
apply plugin: 'eclipse-wtp'
apply plugin: 'jacoco'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
apply plugin: 'war'
group = 'com.demo'
version = '0.0.1-SNAPSHOT'
// Uses JDK 8
sourceCompatibility = 1.8
targetCompatibility = 1.8
repositories {
maven { url "https://repo.spring.io/milestone" }
jcenter()
mavenCentral()
maven { url "https://repo.spring.io/snapshot" }
}
configurations {
providedRuntime
}
dependencies {
// SPRING FRAMEWORK
compile('org.springframework.boot:spring-boot-starter-web')
compile('org.springframework.boot:spring-boot-starter-aop')
compile('org.springframework.boot:spring-boot-starter-actuator')
// Tomcat Server
providedRuntime('org.springframework.boot:spring-boot-starter-tomcat')
//Spring Jpa
compile('org.springframework.boot:spring-boot-starter-data-jpa')
// SPRING SECURITY
compile('org.springframework.boot:spring-boot-starter-security')
// MYSQL and HIBERNATE
compile 'mysql:mysql-connector-java:5.1.34'
//compile 'org.hibernate:hibernate-core:5.2.11.Final'
//compile 'org.hibernate:hibernate-validator:5.1.3.Final'
}
帮帮我
推荐答案
可能会有所帮助,请参阅这个答案,感谢 Andres Cespedes Morales :
May be this can help, refer to this answer, thanks to Andres Cespedes Morales:
这条消息说明:你需要在ApplicationContext中配置至少1个ServletWebServerFactory bean ,所以如果你已经有了spring-boot-starter-tomcat,你需要自动配置该bean或手动执行。
This message says: You need to configure at least 1 ServletWebServerFactory bean in the ApplicationContext, so if you already have spring-boot-starter-tomcat you need to either autoconfigure that bean or to do it manually.
因此,在测试中只有2个配置类来加载applicationContext,这些是= {WebsocketSourceConfiguration.class,WebSocketSourceIntegrationTests.class},然后至少在其中一个类中,应该有一个@Bean方法返回所需ServletWebServerFactory的实例。
So, in the test there are only 2 configuration classes to load the applicationContext, these are = { WebsocketSourceConfiguration.class, WebSocketSourceIntegrationTests.class }, then at least in one of these classes there should be a @Bean method returning an instance of the desired ServletWebServerFactory.
- SOLUTION *
确保加载配置类中的所有bean
Make sure to load all the beans within your configuration class
WebsocketSourceConfiguration {
@Bean
ServletWebServerFactory servletWebServerFactory(){
return new TomcatServletWebServerFactory();
}
}
或者还启用自动配置进行类路径扫描和自动配置这些bean。
OR also enable the AutoConfiguration to do a classpath scanning and auto-configuration of those beans.
@EnableAutoConfiguration
WebsocketSourceConfiguration
也可以在Integration Test类中完成。
Can be done also at the Integration Test class.
@EnableAutoConfiguration
WebSocketSourceIntegrationTests
有关更多信息,请查看 SpringBootTest注释文档 https: //docs.spring.io/spring-boot/docs/current/api/org/springframework/boot/test/context/SpringBootTest.html
For more information check the SpringBootTest annotation documentation https://docs.spring.io/spring-boot/docs/current/api/org/springframework/boot/test/context/SpringBootTest.html
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