如何在Intellij中运行导入的Spring mvc项目？

Question

我正在使用IntelliJ并导入了Spring MVC项目。我配置了maven安装程序并使用mvn clean install来构建我的项目。为了运行，我配置了tomcat：在IntelliJ的配置上运行。 但是红色标记显示为：

<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>com.luv2code</groupId>
    <artifactId>spring-security-demo</artifactId>
    <version>1.0</version>
    <packaging>war</packaging>

    <name>spring-security-demo</name>

    <properties>
        <springframework.version>5.0.2.RELEASE</springframework.version>

        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>

        <!-- Spring MVC support -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${springframework.version}</version>
        </dependency>

        <!-- Servlet, JSP and JSTL support -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>2.3.1</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>

    </dependencies>

    <!-- TO DO: Add support for Maven WAR Plugin -->
    <build>
        <finalName>spring-security-demo</finalName>
        <pluginManagement>
             <plugins>
                 <plugin>
                     <!-- Add maven coordinate for maven war plugin-->
                     <!-- https://mvnrepository.com/artifact/org.apache.maven.plugins/maven-war-plugin -->

                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-war-plugin</artifactId>
                         <version>3.2.3</version>


                 </plugin>
             </plugins>
        </pluginManagement>
    </build>

</project>

但是它可以成功编译，并且在运行控制台时打印出以下内容：

“ C：\\ Program Files \\ Java \\ jdk1.8.0_111 \\ bin \\ java.exe” -Dmaven.multiModuleProjectDirectory = C：\\ Users \\ AshwinPC \\ Desktop \\ Spring-Security \\ spring-security-demo-starter \\ spring-security- demo-01-base-app“ -Dmaven.home = C：\\ Program Files \\ JetBrains \\ IntelliJ IDEA社区版2019.2 \\ plugins \\ maven \\ lib \\ maven3”“ -Dclassworlds.conf = C：\\ Program Files \\ JetBrains \\ IntelliJ IDEA社区版2019.2 \\ plugins \\ maven \\ lib \\ maven3 \\ bin \\ m2.conf“” -Dmaven.ext.class.path = C：\\ Program Files \\ JetBrains \\ IntelliJ IDEA社区版2019.2 \\ plugins \\ maven \\ lib \\ maven -event-listener.jar“” -javaagent：C：\\ Program Files \\ JetBrains \\ IntelliJ IDEA社区版2019.2 \\ lib \\ idea_rt.jar = 61598：C：\\ Program Files \\ JetBrains \\ IntelliJ IDEA社区版2019.2 \\ bin“- Dfile.encoding = UTF-8 -classpath“ C：\\ Program Files \\ JetBrains \\ IntelliJ IDEA社区版2019.2 \\ plugins \\ maven \\ lib \\ maven3 \\ boot \\ plexus-classworlds-2.6.0.jar” org.codehaus.classworlds。启动器-Didea.version2019.2 tomcat：run [INFO]扫描项目... [INFO] [INFO]- -------------- <com.luv2code：spring-security-demo> ------------------ [INFO]构建spring-security -demo 1.0 [INFO] -------------------------------- [war] --------- ------------------------ [INFO] [INFO] >>> tomcat-maven-plugin：1.1：run（default-cli）>编译@ spring-security-demo >>> [INFO] [INFO] --- maven-resources-plugin：2.6：resources（default-resources）@ spring-security-demo --- [警告]使用平台编码（UTF-8实际上）复制过滤的资源，即构建依赖于平台！ [INFO]跳过不存在的资源目录C：\\ Users \\ AshwinPC \\ Desktop \\ Spring-Security \\ spring-security-demo-starter \\ spring-security-demo-01-base-app \\ src \\ main \\ resources [INFO] [INFO] ] --- maven-compiler-plugin：3.1：compile（default-compile）@ spring-security-demo --- [INFO]无需编译-所有类都是最新的[INFO] [INFO] <<< tomcat -maven-plugin：1.1：run（default-cli）<编译@ spring-security-demo <<< [INFO] [INFO] [INFO] --- tomcat-maven-plugin：1.1：run（default-cli） @ spring-security-demo --- [INFO]在http：// localhost：8080 / spring-security-demo上运行战争[INFO]在C：\\ Users \\ AshwinPC \\ Desktop \\ Spring-Security \\ spring中创建Tomcat服务器配置-security-demo-starter \\ spring-security-demo-01-base-app \\ target \\ tomcat Aug 09，2019 10:49:23 org.apache.catalina.startup.Embedded start INFO：启动tomcat服务器Aug 09， 2019上午10:49:23 org.apache.catalina.core.StandardEngine启动信息：启动Servlet引擎：Apache Tomcat / 6.0.29 Aug 09，2019 10:49:24 AM org.apache.coyot e.http11.Http11Protocol初始化信息：在http-8080上初始化初始化Coyote HTTP / 1.1八月09，2019 10:49:24 org.apache.coyote.http11.Http11Protocol启动信息：在http-8080上启动Coyote HTTP / 1.1

当我点击时： http://localhost:8080/spring-security-demo/

其他配置类是：

DemoController.java

  package com.luv2code.springsecurity.demo.controller;


    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.GetMapping;

    @Controller
    public class DemoController {

        @GetMapping("/")
        public String showHome(){
            return "home";
        }


    }

配置类：

package com.luv2code.springsecurity.demo.config;

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.EnableWebMvc;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
@EnableWebMvc
@ComponentScan(basePackages = "com.luv2code")
public class DemoAppConfig {

    //bean for viewresolver
    @Bean
    public ViewResolver viewResolver(){
        InternalResourceViewResolver viewResolver=new InternalResourceViewResolver();
        viewResolver.setPrefix("/WEB-INF/view/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }




}

分派器Servlet配置

package com.luv2code.springsecurity.demo.config;


import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class MySpringMVcDispatcherServletInitilizer extends AbstractAnnotationConfigDispatcherServletInitializer {


    @Override
    protected Class<?>[] getRootConfigClasses(){
         return null;
    }

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

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


}

Answer 1

尝试做这样的事情：
文件->项目结构-> 模块- > 检查是否添加了Web模块
如果不'：
1.添加此模块。 然后看第2点。
如是'：
在此处检查Web资源目录 ：
2.它必须指向您的webapp目录路径。

Answer 2

在您的DemoController中，showHome应该返回一个ModelAndView这样的东西，然后ViewResolver会将其映射到home.jsp

@RequestMapping("/")
public ModelAndView showHome() {
    return new ModelAndView("home");
}

您也可以在这里参考更多细节