控制器未在 spring-mvc 应用程序中调用

Question

我有一个奇怪的流程，当我尝试启动 spring-mvc 项目时，一切都在构建并以 localhost:8080 地址正确启动，但它仅显示 Apache Tomcat 主页和每个请求，例如 localhost:8080/login显示HTTP Status 404 – Not Founddescription:The origin server did not find a current representation for the target resource or is not willing to disclose that one exists. 奇怪的是，当我尝试在另一台机器（Ubuntu）上运行相同的项目时，它运行良好，登录页面正确显示并且每个请求都运行良好。奇怪的是，这台机器第一次出现这种意想不到的流量。

tomcat version is 8.5.24

这是我的dispatcher-servlet.xml

 <!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

这里是applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.awesome"/>

</beans>

这是我的配置类

@Configuration
@ComponentScan("com.awesome")
@EnableWebMvc
open class AppConfig : WebMvcConfigurerAdapter() {

@Bean
open fun viewResolver(): InternalResourceViewResolver {
    val internalResourceViewResolver = InternalResourceViewResolver()
    internalResourceViewResolver.setSuffix(".jsp")
    internalResourceViewResolver.setPrefix("/")
    return internalResourceViewResolver
}

override fun configureDefaultServletHandling(configurer: DefaultServletHandlerConfigurer?) {
    configurer?.enable()
    }
 }

这里是控制器

@Controller
class HomeController {

@RequestMapping("/", method = [(RequestMethod.GET)])
fun displayLoginPage(): String {
    return "login"
}

@RequestMapping("/login", method = [(RequestMethod.POST)])
fun login(@RequestParam user_name:String, @RequestParam password: String, modelMap: ModelMap): String {
    return "main"
    }
}

这里是启动日志

    "C:\Program Files\apache-tomcat-8.5.24\bin\catalina.bat" run
[2018-01-22 03:18:25,411] Artifact Wall5:war: Waiting for server connection to start artifact deployment...
Using CATALINA_BASE:   "C:\Users\dev--\.IntelliJIdea2017.3\system\tomcat\Unnamed_Wall5"
Using CATALINA_HOME:   "C:\Program Files\apache-tomcat-8.5.24"
Using CATALINA_TMPDIR: "C:\Program Files\apache-tomcat-8.5.24\temp"
Using JRE_HOME:        "C:\Program Files\Java\jdk1.8.0_144"
Using CLASSPATH:       "C:\Program Files\apache-tomcat-8.5.24\bin\bootstrap.jar;C:\Program Files\apache-tomcat-8.5.24\bin\tomcat-juli.jar"
22-Jan-2018 15:18:26.852 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version:        Apache Tomcat/8.5.24
22-Jan-2018 15:18:26.854 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Nov 27 2017 13:05:30 UTC
22-Jan-2018 15:18:26.854 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number:         8.5.24.0
22-Jan-2018 15:18:26.854 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Windows 10
22-Jan-2018 15:18:26.855 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            10.0
22-Jan-2018 15:18:26.855 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
22-Jan-2018 15:18:26.855 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             C:\Program Files\Java\jdk1.8.0_144\jre
22-Jan-2018 15:18:26.855 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_144-b01
22-Jan-2018 15:18:26.855 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Oracle Corporation
22-Jan-2018 15:18:26.855 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         C:\Users\dev--\.IntelliJIdea2017.3\system\tomcat\Unnamed_Wall5
22-Jan-2018 15:18:26.855 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         C:\Program Files\apache-tomcat-8.5.24
22-Jan-2018 15:18:26.857 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=C:\Users\dev--\.IntelliJIdea2017.3\system\tomcat\Unnamed_Wall5\conf\logging.properties
22-Jan-2018 15:18:26.857 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
22-Jan-2018 15:18:26.857 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote=
22-Jan-2018 15:18:26.857 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.port=1099
22-Jan-2018 15:18:26.857 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.ssl=false
22-Jan-2018 15:18:26.857 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.authenticate=false
22-Jan-2018 15:18:26.857 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.rmi.server.hostname=127.0.0.1
22-Jan-2018 15:18:26.858 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
22-Jan-2018 15:18:26.858 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
22-Jan-2018 15:18:26.858 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=
22-Jan-2018 15:18:26.858 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=C:\Users\dev--\.IntelliJIdea2017.3\system\tomcat\Unnamed_Wall5
22-Jan-2018 15:18:26.858 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=C:\Program Files\apache-tomcat-8.5.24
22-Jan-2018 15:18:26.858 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=C:\Program Files\apache-tomcat-8.5.24\temp
22-Jan-2018 15:18:26.858 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded APR based Apache Tomcat Native library [1.2.16] using APR version [1.6.3].
22-Jan-2018 15:18:26.858 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
22-Jan-2018 15:18:26.858 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
22-Jan-2018 15:18:27.854 INFO [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized [OpenSSL 1.0.2m  2 Nov 2017]
22-Jan-2018 15:18:28.547 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
22-Jan-2018 15:18:28.563 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
22-Jan-2018 15:18:28.569 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
22-Jan-2018 15:18:28.571 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read
22-Jan-2018 15:18:28.571 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 2114 ms
22-Jan-2018 15:18:28.596 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
22-Jan-2018 15:18:28.596 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.5.24
22-Jan-2018 15:18:28.625 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
22-Jan-2018 15:18:28.638 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
22-Jan-2018 15:18:28.641 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 69 ms

Answer 1

我已经解决了这个问题，我刚刚看到了我的工件并将war 工件更改为exploded，现在一切正常。

Answer 2

在 c turbo 编译器中，首先编译代码为零错误，按 f9 可见，然后按 ctrl+f9 输出，然后按 alt+f5，结果将在提示窗口中可见。