Unable to start embedded container和Consider defining a bean：SpringBoot搭建多模块项目错误

末蓝、 2022-05-14 00:53 140阅读 0赞

SpringBoot搭建多模块项目错误，我是参照这个网址搭建的

然后搭建过程中就遇到了一些bug：[https://blog.csdn.net/hanchao5272/article/details/80558780][https_blog.csdn.net_hanchao5272_article_details_80558780]

1、springboot无法启动，都怪这个spring的jar包

org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:137) ~[spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537) ~[spring-context-4.3.18.RELEASE.jar:4.3.18.RELEASE]
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at com.fxy.ControllerApplication.main(ControllerApplication.java:13) [classes/:na]
    Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
        at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:138) ~[spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:87) ~[spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:554) ~[spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:179) ~[spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:164) ~[spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:134) ~[spring-boot-1.5.15.RELEASE.jar:1.5.15.RELEASE]
        ... 8 common frames omitted

### 删掉pom.xml中的spring依赖 ###

<dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-web</artifactId>
                <version>5.0.4.RELEASE</version>
                <scope>compile</scope>
            </dependency>

\--------------------------------------------------------------------

2、在A模块添加B模块的依赖，记得在A模块的pom.xml中引入B模块的坐标

<dependency>
                <groupId>com.fxy</groupId>
                <artifactId>B</artifactId>
                <version>0.0.1-SNAPSHOT</version>
                <scope>compile</scope>
            </dependency>

例如我的A模块是controller，B模块是service,在controller写好调用方法之后启动，报错

***************************
    APPLICATION FAILED TO START
    ***************************
    Description:
    Field schedualService in com.fxy.controller.hi required a bean of type 'com.fxy.SchedualService' that could not be found.
    Action:
    Consider defining a bean of type 'com.fxy.SchedualService' in your configuration.

### 原因：在service模块没有添加注解@Service ###

\-----------------------------------------------------------------

3、在controller模块注入service模块过程：

先在controller编写

@Autowired
        SchedualService schedualService;

此时service类标红，需要Alt + Enter（可能有些人的键位是Alt + /） 提示Add dependency on module service，  
然后打开controller模块的pom.xml，在最后发现多了一个依赖，即可跨模块调用

<dependency>
                <groupId>com.fxy</groupId>
                <artifactId>service</artifactId>
                <version>0.0.1-SNAPSHOT</version>
                <scope>compile</scope>
            </dependency>

[https_blog.csdn.net_hanchao5272_article_details_80558780]: https://blog.csdn.net/hanchao5272/article/details/80558780