我一直在尝试让一个简单的spring mvc webapp工作。我或多或少地遵循了本教程:http : //www.codejava.net/frameworks/spring/spring-mvc-beginner-tutorial-with-spring-tool-suite-ide
请注意,即时通讯使用的是Spring 3.2.5.RELEASE。一切工作正常,除非控制器返回“ index”,调度程序servlet映射到“ /websitebasetest/WEB-INF/views/index.html”,即使在“ WEB- INF /视图”。
控制器被称为很棒!但是此后,发现相关的视图似乎很奇怪,因为日志表明视图解析器在“ /websitebasetest/WEB-INF/views/index.html”中找到了合适的视图(见下文)。
我的问题是,为什么找不到视图(改为显示404),如何使它起作用?
这是您可能需要的信息:
项目结构:project-structure.png。
pom.xml的前半部分(我可以应要求发布其余部分):
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.tenacious</groupId>
<artifactId>websitebasetest</artifactId>
<name>websitebasetest</name>
<packaging>war</packaging>
<version>1.0.0-BUILD-SNAPSHOT</version>
<properties>
<java-version>1.6</java-version>
<org.springframework-version>3.2.5.RELEASE</org.springframework-version>
<org.aspectj-version>1.6.10</org.aspectj-version>
<org.slf4j-version>1.6.6</org.slf4j-version>
</properties>
<dependencies>
<!-- Spring core dependency-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework-version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Spring MVC dependency-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework-version}</version>
</dependency>
root-context.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- Root Context: defines shared resources visible to all other web components -->
</beans>
servlet-context.xml:
<?xml version="1.0" encoding="UTF-8"?><beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
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">
<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
<!-- Enables the Spring MVC @Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for "/css/**" and "/js/**" by efficiently serving up
static resources in the ${webappRoot}/css and the ${webappRoot}/js directories respectively -->
<resources mapping="/css/**" location="/WEB-INF/css" />
<resources mapping="/js/**" location="/WEB-INF/js" />
<!-- Resolves views selected for rendering by @Controllers to .html resources in the /WEB-INF/views directory -->
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".html" />
</beans:bean>
<context:component-scan base-package="com.tenacious.websitebasetest" />
</beans:beans>
web.xml:
<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
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">
<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Processes application requests -->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
HomeController.java:
package com.tenacious.websitebasetest;
import java.util.Locale;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
/**
* Handles requests for the application "home" page.
*/
@Controller
public class HomeController
{
private static final Logger logger = LoggerFactory.getLogger(HomeController.class);
/**
* Simply selects the home view to render by returning its name.
*/
@RequestMapping(value = "/", method = RequestMethod.GET)
public String index(Locale locale, Model model)
{
logger.info("Hello world!");
return "index";
}
}
index.html:
<html>
<head>
<title>Home</title>
</head>
<body>
<h1>Hello world!</h1>
</body>
</html>
我尝试访问的URL:localhost:8080 / websitebasetest /
控制台日志:
Aug 14, 2016 2:28:49 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 690 ms
INFO : org.springframework.web.context.ContextLoader - Root WebApplicationContext: initialization started
INFO : org.springframework.web.context.support.XmlWebApplicationContext - Refreshing Root WebApplicationContext: startup date [Sun Aug 14 14:28:50 EDT 2016]; root of context hierarchy
INFO : org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from ServletContext resource [/WEB-INF/spring/root-context.xml]
INFO : org.springframework.beans.factory.support.DefaultListableBeanFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@5792f62e: defining beans []; root of factory hierarchy
INFO : org.springframework.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 199 ms
INFO : org.springframework.web.servlet.DispatcherServlet - FrameworkServlet 'appServlet': initialization started
INFO : org.springframework.web.context.support.XmlWebApplicationContext - Refreshing WebApplicationContext for namespace 'appServlet-servlet': startup date [Sun Aug 14 14:28:50 EDT 2016]; parent: Root WebApplicationContext
INFO : org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from ServletContext resource [/WEB-INF/spring/appServlet/servlet-context.xml]
INFO : org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor - JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
INFO : org.springframework.beans.factory.support.DefaultListableBeanFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@67b7829a: defining beans [mvcContentNegotiationManager,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping#0,org.springframework.format.support.FormattingConversionServiceFactoryBean#0,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter#0,org.springframework.web.servlet.handler.MappedInterceptor#0,org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver#0,org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver#0,org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver#0,org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping,org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter,org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter,org.springframework.web.servlet.resource.ResourceHttpRequestHandler#0,org.springframework.web.servlet.handler.SimpleUrlHandlerMapping#0,org.springframework.web.servlet.resource.ResourceHttpRequestHandler#1,org.springframework.web.servlet.handler.SimpleUrlHandlerMapping#1,org.springframework.web.servlet.view.InternalResourceViewResolver#0,homeController,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor]; parent: org.springframework.beans.factory.support.DefaultListableBeanFactory@5792f62e
INFO : org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.tenacious.websitebasetest.HomeController.index(java.util.Locale,org.springframework.ui.Model)
INFO : org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Mapped URL path [/css/**] onto handler 'org.springframework.web.servlet.resource.ResourceHttpRequestHandler#0'
INFO : org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Mapped URL path [/js/**] onto handler 'org.springframework.web.servlet.resource.ResourceHttpRequestHandler#1'
INFO : org.springframework.web.servlet.DispatcherServlet - FrameworkServlet 'appServlet': initialization completed in 523 ms
Aug 14, 2016 2:28:51 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1665 ms
INFO : com.tenacious.websitebasetest.HomeController - Hello world!
WARN : org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/websitebasetest/WEB-INF/views/index.html] in DispatcherServlet with name 'appServlet'
404页:
HTTP状态404-
类型状态报告
信息
描述所请求的资源不可用。
Pivotal tc运行时3.1.2.RELEASE / 8.0.26.B.RELEASE
任何帮助将不胜感激。谢谢你。
我找到了解决方案。
在servlet上下文中,我添加了:
<resources mapping="/views/**" location="/WEB-INF/views/" />
并编辑了这一部分:
<!-- Resolves views selected for rendering by @Controllers to .html resources in the /WEB-INF/webcontent/views directory -->
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/views/" />
<beans:property name="suffix" value=".html" />
</beans:bean>
视图解析器从控制器接收“索引”,然后将其更改为“ /views/index.html”。由于我添加了以“ / views / **”开头的任何内容的资源映射以映射到“ / WEB-INF / views /”,因此它现在可以正确地找到xD视图。
似乎映射到“ /websitebasetest/WEB-INF/views/index.html”(这是之前所做的)是错误的,因为无法找到文件。
特别感谢在此过程中提供帮助的人们!!
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