Question

我已经创建了一个测试Spring MVC项目。这里控制器正在执行但后来内部视图解析器无法转换逻辑名称，因为当我点击URL时，我得到“HTTP状态404-请求的资源（）不可用。”在浏览器上，但控制器内的SOP正在执行。

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">
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
    classpath:applicationContext.xml
    </param-value>
</context-param>    

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>


<servlet>
    <servlet-name>appServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>spring/mvc/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>

<!-- <welcome-file-list>
    <welcome-file>/WEB-INF/views/Welcome.jsp</welcome-file>
</welcome-file-list>
<session-config>
  <session-timeout>60</session-timeout>
</session-config> -->
</web-app>

控制器代码：

@Controller
public class WelcomeController {

@RequestMapping(value = "/Welcome")
public String  displaywelcomePage(Model model, HttpServletRequest request)
{
    System.out.println("Into the controller");
    return "Welcome";
}

servlet的context.xml中

<?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"
xmlns:cache="http://www.springframework.org/schema/cache"
xsi:schemaLocation="http://www.springframework.org/schema/mvc 
                    http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
                    http://www.springframework.org/schema/beans 
                    http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
                    http://www.springframework.org/schema/tx 
                    http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
                    http://www.springframework.org/schema/context 
                    http://www.springframework.org/schema/context/spring-context-3.1.xsd
                    http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd">


<annotation-driven />

<context:component-scan base-package="com.springmvc.prac.springmvcprac" />

    <resources mapping="/resources/**" location="/resources/" />

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

</beans:beans>

servlet-context.xml位于webapp / spring / mvc

中

Welcome.jsp位于webapp / WEB-INF / view

中

Answer 1

问题出在web.xml中，用于将appservlet URL模式从/ *更改为/

appServlet /

虽然这个问题已经解决但实际上我并没有理解根本原因，因为无论如何以前控制器也被称为

Answer 2

您的配置缺少视图类。变化

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

到

<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <beans:property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
    <beans:property name="prefix" value="/WEB-INF/view/" />  
    <beans:property name="suffix" value=".jsp" />
</beans:bean>

InternalViewResolver在Spring中不起作用

2 个答案: