java - 无法从 IntelliJ Tomcat 中找到 Controller

Question

我在 intelliJ 中配置 spring mvc 项目时遇到问题(我无法在此项目中使用 spring boot)。

我似乎无法击中我的 Controller :

package app.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.servlet.http.HttpServletRequest;

@Controller
@RequestMapping(value = "/user")
public class UserController {

    @RequestMapping(value = "/registerUser", method = RequestMethod.GET)
    public String registerUser(Model m, HttpServletRequest request) {
        System.out.println("HERE");
        return "index";
    }
}

因为我在尝试 localhost:8080/user/registerUser 时总是会收到 404 错误。

我意识到为了拥有 HttpServletRequest 类，我需要在我的 pom.xml 中导入最后一个依赖项:

    <?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>com.nemanjagajic</groupId>
    <artifactId>Reserve</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.3.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>4.3.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>5.4.1.Final</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
            <version>1.11.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>

</project>

或者我可以转到"file"->“项目结构”->“模块”，选择“依赖项”选项卡，然后添加库 Tomcat 9.0.6，但无论如何我都无法访问我的 Controller 。同一个项目似乎在 Eclipse 中工作，所以我猜它与在这种情况下配置服务器 aka tomcat 有关，但我很难找到在 IntelliJ 中正确配置它的方法。

如果有人想尝试，我会留下项目的 github 存储库: https://github.com/nemanjagajic/Reserve

Answer 1

1. 请重命名 web->webapp 并移至 src->main 文件夹。

2. 如下更新 pom.xml。

   http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0

   <groupId>com.nemanjagajic</groupId>
   <artifactId>Reserve</artifactId>
   <version>1.0-SNAPSHOT</version>
   <packaging>war</packaging>
   <properties>
       <maven.compiler.source>1.8</maven.compiler.source>
       <maven.compiler.target>1.8</maven.compiler.target>
   </properties>
   <dependencies>
       <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-webmvc</artifactId>
           <version>4.3.6.RELEASE</version>
       </dependency>
       <dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-orm</artifactId>
           <version>4.3.6.RELEASE</version>
       </dependency>
       <dependency>
           <groupId>org.hibernate</groupId>
           <artifactId>hibernate-validator</artifactId>
           <version>5.4.1.Final</version>
       </dependency>
       <dependency>
           <groupId>org.springframework.data</groupId>
           <artifactId>spring-data-jpa</artifactId>
           <version>1.11.1.RELEASE</version>
       </dependency>
       <dependency>
           <groupId>jstl</groupId>
           <artifactId>jstl</artifactId>
           <version>1.2</version>
       </dependency>
       <dependency>
           <groupId>javax.servlet</groupId>
           <artifactId>servlet-api</artifactId>
           <version>2.5</version>
           <scope>provided</scope>
       </dependency>
       <!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat -->
       <dependency>
           <groupId>org.apache.tomcat</groupId>
           <artifactId>tomcat</artifactId>
           <version>8.5.15</version>
           <type>pom</type>
       </dependency>
   
   </dependencies>
   <build>
       <plugins>
           <plugin>
               <groupId>org.apache.tomcat.maven</groupId>
               <artifactId>tomcat7-maven-plugin</artifactId>
               <version>2.2</version>
               <configuration>
                   <port>8080</port>
                   <path>/</path>
               </configuration>
           </plugin>
       </plugins>
   </build>
   

3. 如下更新 webConfig.java。

      @Bean
            public ViewResolver viewResolver() {
                InternalResourceViewResolver resolver = new      InternalResourceViewResolver();
                resolver.setViewClass(JstlView.class);
               resolver.setPrefix("/");
               resolver.setSuffix(".jsp");
               return resolver;
        }
   

这是工作示例。