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Java 简单请求映射不起作用,Spring初学者_Java_Spring_Jakarta Ee_Spring Mvc_Tomcat7 - Fatal编程技术网

Java 简单请求映射不起作用,Spring初学者

Java 简单请求映射不起作用,Spring初学者,java,spring,jakarta-ee,spring-mvc,tomcat7,Java,Spring,Jakarta Ee,Spring Mvc,Tomcat7,我是spring mvc的初学者,我有两个jsp:- 1.Webcontent/index.jsp:这很好用。索引文件具有超链接文本,如:- <a href="hello.html" rel="nofollow">Say Hello</a> 项目容器如下所示:- @Controller public class HelloWorldContainer { @RequestMapping(value="/hello", method=Request

我是spring mvc的初学者,我有两个jsp:- 1.Webcontent/index.jsp:这很好用。索引文件具有超链接文本,如:-

      <a href="hello.html" rel="nofollow">Say Hello</a>
项目容器如下所示:-

 @Controller
  public class HelloWorldContainer {

 @RequestMapping(value="/hello", method=RequestMethod.GET)
    public ModelAndView helloWorld() {

        String message = "Hello World, Spring 3.0!";
        return new ModelAndView("hello.jsp", "message", message);
    }
}
以下是WebContent/WEB-INF/WEB.xml文件:-

   <?xml version="1.0" encoding="UTF-8"?>
 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>Spring3MVC</display-name>
<welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>
        org.springframework.web.servlet.DispatcherServlet
    </servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>*.*</url-pattern>
</servlet-mapping>

Spring3MVC
index.jsp
春天
org.springframework.web.servlet.DispatcherServlet
1.
春天
*.*

WebContent/WEB-INF/spring-servlet.xml:-

 <context:component-scan
    base-package="org.explorear.ar" />

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

我的问题是:- 当我从eclipse在tomcat服务器上运行这个项目时,会显示索引文件 很好。但由于索引文件中的文本超链接到hello.html,我不断得到
Http状态404

您将在此行返回整个页面名称

返回新的ModelAndView(“hello.jsp”,“message”,message)

您使用的是ViewResolver,其中返回值以.jsp作为后缀。所以在我的建议中使用这个


返回新的ModelAndView(“你好”,“消息”,消息)

我可能遗漏了什么,但我认为

org.springframework.web.context.ContextLoaderListener


需要在web.xml中提供context参数,这就是web.xml应该具备的功能

<?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">

  <display-name>Spring3MVC</display-name>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/spring/root-context.xml
    </param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
   <servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>/WEB-INF/spring-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/*</url-pattern>
  </servlet-mapping>
  <session-config>  
  <session-timeout>10</session-timeout>  
</session-config> 
</web-app>

Spring3MVC
上下文配置位置
/WEB-INF/spring/root-context.xml
org.springframework.web.context.ContextLoaderListener
春天
org.springframework.web.servlet.DispatcherServlet
上下文配置位置
/WEB-INF/spring-servlet.xml
1.
春天
/*
10

这样做。。。我被导航到http状态404,但仍然是404。您正在使用hello.jsp,但在您的引用中您正在使用hello.html?您正在使用jsp页面并在引用链接中调用html页面?将其更改为hello.jsp将此作为servlet映射
spring/
在您的spring-servlet.xml
/WEB-INF/jsp/.jsp
将所有jsp文件放在/WEB-INF/jsp/FOLDER中不会有运气。我已经使用了本教程,请打开调试级日志,并向我们展示404的源代码。没有日志,一切都只是猜测:)请检查服务器是否正确启动。
<?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">

  <display-name>Spring3MVC</display-name>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/spring/root-context.xml
    </param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
   <servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>/WEB-INF/spring-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/*</url-pattern>
  </servlet-mapping>
  <session-config>  
  <session-timeout>10</session-timeout>  
</session-config> 
</web-app>