org.springframework.web.servlet.PageNotFound.noHandlerFound 在名称为 'dispatcher' 的 DispatcherServlet 中找不到带有 URI 的 HTTP 请求的映射

Question

当我运行我的 spring 应用程序时，我收到 404 并且控制台发出以下警告：

01-Aug-2016 15:38:27.799 WARNING [http-nio-8080-exec-1] org.springframework.web.servlet.PageNotFound.noHandlerFound No mapping found for HTTP request with URI [/drewnostal] in DispatcherServlet with name 'dispatcher'
01-Aug-2016 15:38:28.537 WARNING [http-nio-8080-exec-5] org.springframework.web.servlet.PageNotFound.noHandlerFound No mapping found for HTTP request with URI [/drewnostal] in DispatcherServlet with name 'dispatcher'

我已经尝试了来自不同线程的几种解决方案，none 但它们都有效。

web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
     version="3.1">

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/dispatcher-servlet.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>

调度员-servlet.xml:

<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
   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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">


<context:annotation-config />
<context:component-scan base-package="pl.drewnostal.controllers"/>

<mvc:annotation-driven/>

<bean id="jspViewResolver"
      class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/views/"/>
    <property name="suffix" value=".jsp"/>
</bean>

</beans>

IndexController.java:

@Controller
public class IndexController {
    @RequestMapping("/")
    public String showHome(){
        return "index";
    }
}

index.jsp:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>$Title$</title>
  </head>
  <body>
  $END$
  </body>
</html>

pom.xml:

<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>pl.drewnostal</groupId>
<artifactId>drewnostal</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>

<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.3.1.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>4.3.1.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.3.1.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>4.3.1.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>4.3.1.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.3.1.RELEASE</version>
    </dependency>
</dependencies>
</project>

My project structure

请帮帮我 ;)

Answer 1

根据您分享的项目结构。 index.jsp 在 web/WEB-INF/views 里面。我按照标准 Maven war 项目创建了相同的项目，并将 index.jsp 放在 webapp/WEB-INF/views 中，它对我有用。

此外，在您的项目结构中，web 文件夹似乎在源代码之外。通常我们只将 webapp 保留在源代码中。

如果你会更正它。您的问题将得到解决。虽然我不确定你是否只想保留这样的结构。

org.springframework.web.servlet.PageNotFound.noHandlerFound 在名称为 'dispatcher' 的 DispatcherServlet 中找不到带有 URI 的 HTTP 请求的映射

org.springframework.web.servlet.PageNotFound.noHandlerFound No mapping found for HTTP request with URI in DispatcherServlet with name 'dispatcher'

spring

spring-mvc

servlets

dispatcher