@Controller在 Spring 启动多模块 maven 项目中的(模块 web)子包中不起作用

Question

@ControllerSpring 启动多模块 maven 项目中的子包中不起作用？

poms 如下;

api module POM;
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>webDemo</artifactId>
<groupId>webDemo</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<packaging>jar</packaging>

<artifactId>api</artifactId>
<groupId>api</groupId>
<version>1.0-SNAPSHOT</version>
<dependencies>
</dependencies>
</project>

网络模块聚甲醛;

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>webDemo</artifactId>
<groupId>webDemo</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>web</artifactId>
<groupId>web</groupId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<artifactId>api</artifactId>
<groupId>api</groupId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>com.apiDemo.ApiApplication</mainClass>
</configuration>
</plugin>
</plugins>
</build>
</project>

父聚甲醛;

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<packaging>pom</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<modules>
<module>api</module>
<module>web</module>
</modules>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.8.RELEASE</version>
</parent>
<groupId>webDemo</groupId>
<artifactId>webDemo</artifactId>
<version>1.0-SNAPSHOT</version>
<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</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>

当我运行项目时ApiController.java通过/appurl 工作正常。但是当我尝试访问/web的 url 时WebController.java，我得到了错误页面。

没有@Controller或@RestController正在从子 (Web( 模块工作。为了解决这个问题，我在Application.java中添加了@ComponentScan(basePackages = {"com.web"})，但仍然收到错误页面。

有什么可以帮忙的吗？提前谢谢。

Answer 1

我认为您的 IDE 准备的类加载器对"胖罐子"覆盖普通罐子的事实感到困惑。IDE 只能识别普通的罐子。

我总是用不同的名称构建罐子，这样我就可以避免这种问题。

更改spring-boot-maven-plugin的配置，所以当一个胖罐子编译时，原始的还在： https://docs.spring.io/spring-boot/docs/current/maven-plugin/repackage-mojo.html#classifier