bean沒有注入彈簧MVC

Question

即時學習Spring MVC和我正在研究一個基本的表單示例，但我不知道爲什麼一個bean沒有正確注入信息，所以我想知道是否有人可以指導我。

控制器

package com.carloscortina.Test; 

import org.apache.log4j.Logger; 
import org.springframework.stereotype.Controller; 
import org.springframework.ui.Model; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 

import com.carloscortina.toy.model.Member; 

@Controller 
public final class NomineeController { 

private static final Logger log= 
     Logger.getLogger(NomineeController.class); 

private String thanksViewName ="thanks"; 

public void setThanksViewName(String thanksViewName) { 
    this.thanksViewName = thanksViewName; 
} 

@RequestMapping(method = RequestMethod.GET) 
public Member form() { return new Member();} 

@RequestMapping(method = RequestMethod.POST) 
public String processFormData(Member member){ 
    log.info("Processing nominee: " + member); 
    log.info("thanksViewName: " + thanksViewName); 
    return thanksViewName; 
} 

根的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" 
xmlns:p="http://www.springframework.org/schema/p" 
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 --> 

<bean id="formAnswer" 
    class="com.carloscortina.Test.NomineeController" 
    p:thanksViewName="thanks" /> 

</beans> 

Web.xml中

<?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> 

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:p="http://www.springframework.org/schema/p" 
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 /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory --> 
<resources mapping="/resources/**" location="/resources/" /> 

<!-- Resolves views selected for rendering by @Controllers to .jsp 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=".jsp" /> 
</beans:bean> 

<context:component-scan base-package="com.carloscortina.Test" /> 

即時通訊使用STS作爲IDE和包含Spring mvc模板。 即時通訊不知道該bean沒有被注入到控制器中，所以當它提交的表單正確重定向時，如果我在控制器中硬編碼感謝，它就會工作。

在此先感謝您的幫助，我知道這可能是一個基本的錯誤，所以謝謝。

* 編輯 哦，也許這涉及到驅動的註釋，但我仍然不知道，我還沒有能夠讓這件事的工作。 因此，控制器無法從root-context.xml中找到一個bean？ 或任何人都可以告訴我如何使用自動接線，這個想法只是爲了不在控制器上硬編碼thanksViewName的值。

Answer 1

您需要將以下內容添加到您的servlet-context.xml配置文件中，而不需要在XML文件中聲明帶註釋的bean。

<mvc:annotation-driven /> 
<context:component-scan base-package="com.carloscortina" /> 

我的建議是下載春凳套件（STS），並創建一個新的春天模板項目（選擇MVC模板），它會創建一個可運行的項目，這樣你可以看到一切都放在一起。