我的输出没有显示在spring MVC中_Spring_Model View Controller

我的输出没有显示在spring MVC中

spring model-view-controller

我的输出没有显示在spring MVC中,spring,model-view-controller,Spring,Model View Controller,爪哇 web.xml package com.ganesh; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.ui.ModelMap; @C

爪哇

web.xml

package com.ganesh;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.ui.ModelMap;

@Controller
@RequestMapping("/hello")

public class HelloController 
{
   @RequestMapping(method = RequestMethod.GET)

   public String printHello(ModelMap model) 
   {
      model.addAttribute("message", "Hello Spring MVC Framework!");           
      return "hello";
   }
}


上下文配置位置
/WEB-INF/applicationContext.xml
org.springframework.web.context.ContextLoaderListener
调度员
org.springframework.web.servlet.DispatcherServlet
2.
调度员
*.htm
30
redirect.jsp

dispatcher-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" 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">
<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>2</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>*.htm</url-pattern>
</servlet-mapping>
<session-config>
    <session-timeout>
        30
    </session-timeout>
</session-config>
<welcome-file-list>
    <welcome-file>redirect.jsp</welcome-file>
</welcome-file-list>
</web-app>


Hello控制器

hello.jsp

<?xml version='1.0' encoding='UTF-8' ?>
<!-- was: <?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:p="http://www.springframework.org/schema/p"
   xmlns:context="http://www.springframework.org/schema/context"
   xmlns:aop="http://www.springframework.org/schema/aop"
   xmlns:tx="http://www.springframework.org/schema/tx"
   xsi:schemaLocation="http://www.springframework.org/schema/beans 
   http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
   http://www.springframework.org/schema/aop 
   http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
   http://www.springframework.org/schema/tx 
   http://www.springframework.org/schema/tx/spring-tx-4.0.xsd 
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd">

<context:component-scan base-package="com.ganesh" />
<bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"/>

<!--
Most controllers will use the ControllerClassNameHandlerMapping above, but
for the index controller we are using ParameterizableViewController, so we must
define an explicit mapping for it.
-->
<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
    <property name="mappings">
        <props>
            <prop key="hello.htm">helloController</prop>
        </props>
    </property>
</bean>

<bean id="viewResolver"
      class="org.springframework.web.servlet.view.InternalResourceViewResolver"
      p:prefix="/WEB-INF/jsp/"
      p:suffix=".jsp" />

<!--
The index controller.
-->
<bean name="helloController"
      class="org.springframework.web.servlet.mvc.ParameterizableViewController"
      p:viewName="hello" />
</beans>


JSP页面
${message}

亲爱的朋友，我已经在SpringMVC中编写了上述文件，但我的输出没有显示。请告诉我这段代码有什么问题，以便我可以运行我的第一个mvc程序。提前感谢

您混合了两个概念，通过XML和注释映射控制器。除了映射“/hello”之外，您的注释似乎是正确的，但我猜您的意思是“/hello.htm”

另一个问题是，您正在通过XML将“/hello.htm”映射到ParameterableViewController，它只显示JSP，而不解析您的模型属性。希望这有帮助

<%@page contentType="text/html;charset=UTF-8" language="java" %>
<%@page isELIgnored="false" %>
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>JSP Page</title>
</head>
<body>
    <h2>${message}</h2>
</body>
</html>