启动Java Spring Web MVC应用程序:未找到映射
每次尝试访问时,我都会遇到以下问题: 警告:找不到URI为的HTTP请求的映射 名为“dispatcher”的DispatcherServlet中的[/views/helloworld.jsp] 下面是我的目录结构的外观:启动Java Spring Web MVC应用程序:未找到映射,java,spring,jsp,maven,spring-mvc,Java,Spring,Jsp,Maven,Spring Mvc,每次尝试访问时,我都会遇到以下问题: 警告:找不到URI为的HTTP请求的映射 名为“dispatcher”的DispatcherServlet中的[/views/helloworld.jsp] 下面是我的目录结构的外观: ├── pom.xml └── src └── main ├── java │ └── dnss │ └── DNSS.java ├── resources └── web
├── pom.xml
└── src
└── main
├── java
│ └── dnss
│ └── DNSS.java
├── resources
└── webapp
├── index.jsp
├── views
│ └── helloworld.jsp
└── WEB-INF
├── dispatcher-servlet.xml
└── web.xml
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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>dnss</groupId>
<artifactId>dnss</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<properties>
<spring.version>4.1.4.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.3</version>
<executions>
<execution>
<phase>package</phase>
<goals><goal>copy</goal></goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-runner</artifactId>
<version>7.5.4.v20111024</version>
<destFileName>jetty-runner.jar</destFileName>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
我不知道怎么了。。。一切似乎都是正确的,但由于某种原因,当我的/views/helloworld.jsp文件明显存在时,它就是找不到。有人能给我指出正确的方向吗?好吧,这有点傻;我从StackOverflow上的代码块中注意到,我的url模式注释了所有内容。。。因此,我删除了*并显示了该页面。要访问控制器方法,映射应仅为/hello。例如localhost:8080//hello。我猜您的url如下http://localhost:8080/hello?name=test 你得把它取下来*
<web-app id="WebApp_ID" version="2.5"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name>DNSS</display-name>
<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>
<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>
</web-app>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="dnss" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Spring MVC Tutorial</title>
</head>
<body>
<h1>Hello : ${name}</h1>
</body>
</html>
package dnss;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
@Controller
public class DNSS {
@RequestMapping("/hello")
public String hello(@RequestParam(value="name", required=false, defaultValue="World") String name, Model model) {
model.addAttribute("name", name);
return "helloworld";
}
}