Question

我是新手使用maven模块，我想使用springMVC构建一个简单的Web项目。

框架很简单，我有“config”，“api”和“parent”项目。“父”项目是其他两个模块的父项。“api”模块依赖于“config”模块。

父项目的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">
    <modelVersion>4.0.0</modelVersion>

    <groupId>test</groupId>
    <artifactId>parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>

    <distributionManagement>
        <site>
            <id>website</id>
            <url>scp://webhost.company.com/www/website</url>
        </site>
    </distributionManagement>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <modules>
        <module>api</module>
        <module>config</module>
    </modules>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <!-- Web Container -->
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-catalina</artifactId>
            <version>8.5.2</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.2.RELEASE</version>
        </dependency>
    </dependencies>
</project>

和配置模块的pom：

<?xml version="1.0"?>
<project
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
    xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>test</groupId>
        <artifactId>parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <groupId>test</groupId>
    <artifactId>config</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>config Maven Webapp</name>
    <url>http://maven.apache.org</url>

    <dependencies>

    </dependencies>

    <build>
        <finalName>config</finalName>
    </build>
</project>

和api模块的pom：

<?xml version="1.0"?>
<project
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
    xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>test</groupId>
        <artifactId>parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <groupId>test</groupId>
    <artifactId>api</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>api Maven Webapp</name>
    <url>http://maven.apache.org</url>

    <dependencies>
        <dependency>
            <groupId>test</groupId>
            <artifactId>config</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>
    <build>
        <finalName>api</finalName>
    </build>
</project>

以及两个项目的概要：

the api module just has a controller in it

the frame work of config module

config项目中的代码是启动spring-mvc的简单代码。我只是展示了关键代码。

AppBoot.java的代码：

package api;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;

import org.springframework.web.context.request.RequestContextListener;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class AppBoot extends AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] { App.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[] { WebConfig.class };
    }

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        servletContext.addListener(RequestContextListener.class);
        super.onStartup(servletContext);
    }

}

webConfig.java的代码：

package api;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
@ComponentScan(basePackages = "api")
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter implements ApplicationContextAware {

    private ApplicationContext applicationContext;

    public void setApplicationContext(ApplicationContext arg0) throws BeansException {
        this.applicationContext = arg0;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
        super.configureDefaultServletHandling(configurer);
    }

    @Bean
    public ViewResolver getViewResolver() {
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        viewResolver.setApplicationContext(this.applicationContext);
        viewResolver.setPrefix("/WEB-INF/");
        viewResolver.setSuffix(".html");
        return viewResolver;
    }

}

“TestApiController”和“TestApi”的代码相同：

@RestController
public class TestApiController {

    @RequestMapping(value="/test")
    public String test() {
        return "home";
    }
}

当我在配置模块中调用“TestApiController”时，它运行良好，但是当我在api模块中调用TestApi控制器时，它显示404。

我猜，因为“api”依赖于“config”，所以“api”中的包对“config”是不可见的，注释@ComponentScan无法扫描“api”模块中的包，所以控制器没有在上下文中注入。我不知道我的猜测是否正确，我也不知道如何修复它。

使用maven模块构建springmvc框架，但我找不到控制器

0 个答案: