Spring自動裝配在控制器不工作

嗨我對Spring很新，我正在使用Spring RESTApi編寫Web服務，我已經創建了Model作爲Product和Controller作爲Main，我已經在Main controller中聲明瞭Product的引用，但是我得到以下例外，爲什麼？請幫我解決這個..Spring自動裝配在控制器不工作

@Controller 
public class Main { 

    @Autowired 
    private Product product; 

    @RequestMapping(method = RequestMethod.GET, value = "/product/{id}") 
    public @ResponseBody 
    Product getProoduct(@PathVariable long id) { 

     //Product product = new Product(); 
     product.setId(id); 
     product.setOwnerName("Android"); 
     product.setProductName("Gah"); 

     return product; 
    } 

} 

public class Product { 

    private long id; 

    private String productName; 

    private String ownerName; 

    public long getId() { 
     return id; 
    } 

    public void setId(long id) { 
     this.id = id; 
    } 

    public String getProductName() { 
     return productName; 
    } 

    public void setProductName(String productName) { 
     this.productName = productName; 
    } 

    public String getOwnerName() { 
     return ownerName; 
    } 

    public void setOwnerName(String ownerName) { 
     this.ownerName = ownerName; 
    } 
}

語境

<?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" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd 
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-4.0.xsd"> 
    <context:component-scan /> 
    <context:annotation-config /> 
    <bean 
     class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> 
     <property name="messageConverters"> 
      <list> 
       <ref bean="jsonConverter" /> 
      </list> 
     </property> 
    </bean> 

    <bean id="jsonConverter" 
     class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"> 
     <property name="supportedMediaTypes" value="application/json" /> 
    </bean> 

    <bean class="com.jaxdepot.restful.controllers.Main" > 
     <property name="product" ref="product"/> 
    </bean> 

    <bean id="product" class="com.jaxdepot.restful.models.Product"> 
     <property name="id" value="45"/> 
     <property name="productName" value="androidTab"/> 
     <property name="ownerName" value="xyz"/> 
    </bean> 

</beans>

堆棧跟蹤

SEVERE: Context initialization failed 
org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 9 in XML document from ServletContext resource [/WEB-INF/restful-servlet.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 9; columnNumber: 28; cvc-complex-type.4: Attribute 'base-package' must appear on element 'context:component-scan'. 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:398) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:335) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:303) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:216) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:187) 
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125) 
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94) 
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129) 
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:540) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:454) 
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) 
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:724) 
Caused by: org.xml.sax.SAXParseException; lineNumber: 9; columnNumber: 28; cvc-complex-type.4: Attribute 'base-package' must appear on element 'context:component-scan'. 
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198) 
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:437) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:325) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(XMLSchemaValidator.java:458) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.reportSchemaError(XMLSchemaValidator.java:3237) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.addDefaultAttributes(XMLSchemaValidator.java:2943) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:2060) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.emptyElement(XMLSchemaValidator.java:766) 
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:353) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2768) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606) 
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:116) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511) 
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:846) 
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:775) 
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123) 
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:242) 
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:345) 
    at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:76) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:389) 
    ... 22 more 

Nov 26, 2013 9:13:57 PM org.apache.catalina.core.StandardContext listenerStart 
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener 
org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 9 in XML document from ServletContext resource [/WEB-INF/restful-servlet.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 9; columnNumber: 28; cvc-complex-type.4: Attribute 'base-package' must appear on element 'context:component-scan'. 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:398) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:335) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:303) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:216) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:187) 
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125) 
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94) 
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129) 
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:540) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:454) 
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106) 
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:724) 
Caused by: org.xml.sax.SAXParseException; lineNumber: 9; columnNumber: 28; cvc-complex-type.4: Attribute 'base-package' must appear on element 'context:component-scan'. 
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198) 
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:437) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:325) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(XMLSchemaValidator.java:458) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.reportSchemaError(XMLSchemaValidator.java:3237) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.addDefaultAttributes(XMLSchemaValidator.java:2943) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:2060) 
    at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.emptyElement(XMLSchemaValidator.java:766) 
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:353) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2768) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606) 
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:116) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511) 
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:846) 
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:775) 
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123) 
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:242) 
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:345) 
    at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:76) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:389) 
    ... 22 more 

Nov 26, 2013 9:13:57 PM org.apache.catalina.core.StandardContext startInternal 
SEVERE: Error listenerStart 
Nov 26, 2013 9:13:57 PM org.apache.catalina.core.StandardContext startInternal 
SEVERE: Context [/SpringRestfulWebServiceDemo] startup failed due to previous errors 
Nov 26, 2013 9:13:57 PM org.apache.catalina.core.ApplicationContext log 
INFO: Closing Spring root WebApplicationContext 
Nov 26, 2013 9:13:57 PM org.springframework.web.context.support.XmlWebApplicationContext doClose 
INFO: Closing Root WebApplicationContext: startup date [Tue Nov 26 21:13:57 IST 2013]; root of context hierarchy 
Nov 26, 2013 9:13:57 PM org.springframework.web.context.support.XmlWebApplicationContext doClose 
WARNING: Exception thrown from ApplicationListener handling ContextClosedEvent 
java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: Root WebApplicationContext: startup date [Tue Nov 26 21:13:57 IST 2013]; root of context hierarchy 
    at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:346) 
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:333) 
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:880) 
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:841) 
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:559) 
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:115) 
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4837) 
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5484) 
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:160) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:724) 

Nov 26, 2013 9:13:57 PM org.springframework.web.context.support.XmlWebApplicationContext doClose 
WARNING: Exception thrown from LifecycleProcessor on context close 
java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: Root WebApplicationContext: startup date [Tue Nov 26 21:13:57 IST 2013]; root of context hierarchy 
    at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:359) 
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:888) 
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:841) 
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:559) 
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:115) 
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4837) 
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5484) 
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:160) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:724) 

Nov 26, 2013 9:13:57 PM org.apache.catalina.core.StandardContext listenerStop 
SEVERE: Exception sending context destroyed event to listener instance of class org.springframework.web.context.ContextLoaderListener 
java.lang.IllegalStateException: BeanFactory not initialized or already closed - call 'refresh' before accessing beans via the ApplicationContext 
    at org.springframework.context.support.AbstractRefreshableApplicationContext.getBeanFactory(AbstractRefreshableApplicationContext.java:170) 
    at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:921) 
    at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:895) 
    at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:841) 
    at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:559) 
    at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:115) 
    at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4837) 
    at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5484) 
    at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:160) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:724)

http://java.sun.com/xml/ns/javaee/web- app_3_0.xsd「 id =」WebApp_ID「version =」3.0「>

<welcome-file-list> 
    <welcome-file>index.html</welcome-file> 
</welcome-file-list> 

<context-param> 
    <param-name>contextConfigLocation</param-name> 
    <param-value>/WEB-INF/restful-servlet.xml</param-value> 
</context-param> 

<servlet> 
    <servlet-name>restful</servlet-name> 
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
    <load-on-startup>1</load-on-startup> 
</servlet> 

<servlet-mapping> 
    <servlet-name>restful</servlet-name> 
    <url-pattern>/*</url-pattern> 
</servlet-mapping> 

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

來源

2013-11-26 Ani

你的結構有點奇怪。產品看起來像一個實體對象，但是您擁有它的方式是一個單身bean，即所有請求都將訪問同一個Product實例。 – Taylor

我已評論產品產品=新產品（）;如果我刪除評論，它將工作得很好，我不想將產品對象作爲單件，但我故意在Autowired中檢查Autowired作品是否在這種情況下。 – Ani

您可以編輯您的問題以添加任何新的詳細信息。 –

您必須指定一個base-package屬性爲<component-scan>

<context:component-scan base-package="some.package.name" />

這是http://www.springframework.org/schema/context/spring-context-4.0.xsd由context命名空間XSD收到限制。對組件掃描沒有任何意義。

另外，如果您指定上述內容，<context:annotation-config>是多餘的。擺脫它。

請注意，您還有其他問題。例如

<bean class="com.jaxdepot.restful.controllers.Main" > 
    <property name="product" ref="product"/> 
</bean>

將失敗，因爲您沒有設置爲product屬性的setter。此外，由於@Controller，如果您的component-scan設置爲掃描包Main所在的包，您最終將在您的上下文中包含2個類型爲Main的豆。這可能不是你想要的。在@Component掃描和顯式<bean>聲明之間做出決定。

還要注意的是，除非您有一個servlet上下文沒有顯示給我們，否則@Controller將不會在任何地方註冊來處理請求。您沒有<mvc:annotation-driven>元素來配置MVC環境。

來源

2013-11-26 16:05:09

我只需要通過xml來創建產品對象，如果我刪除註釋代碼，您可以在Main.getProduct（）中看到註釋部分，但是我需要僅從xml文件創建對象。做什麼？ – Ani

@Ani代碼絕對不會正常工作。你對我的回答有什麼不瞭解？去看看你得到的例外。這很清楚。創建一個bean並不難，你可以像你一樣指定一個''。這就是你如何使用它很困難。 –

<屬性名= 」產品「 REF = 」產品「/> <豆ID = 」產品「類= 」com.jaxdepot.restful.models.Product「> <屬性名=」 ID 「value =」45「/> 如果我將以上版本從我的restful-servlet中刪除。 xml並從控制器中的getProduct（）刪除產品product = new Product（）的註釋它工作正常，但我只想從restful-servlet.xml初始化Product對象，我應該怎麼做？ – Ani

Spring自動裝配在控制器不工作

回答

相關問題