我想自动调用一些bean(用于依赖注入)使用Spring的Web应用程序。一个控制器bean包含另一个bean,后者又保存另一个bean集合的hashmap。目前地图只有一个条目。当我在Tomcat的运行和调用服务,我得到一个错误,指出第二个bean(控制器持有)不是唯一的春天自动装配与独特的豆:春天预计单个匹配豆,但发现2
No unique bean of type [com.hp.it.km.search.web.suggestion.SuggestionService] is defined: expected single matching bean but found 2: [suggestionService, SuggestionService]
我不能看到我定义的豆但是两次是新来春自动装配,所以我可能会失去一些根本性的东西。 XML和下面列出的2类源代码
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:component-scan base-package="com.hp.it.km.search.web.suggestion" />
<mvc:annotation-driven />
<context:annotation-config />
<bean id="SuggestionController" class="com.hp.it.km.search.web.suggestion.SuggestionController">
<property name="service">
<ref bean="SuggestionService" />
</property>
</bean>
<bean id="SuggestionService" class="com.hp.it.km.search.web.suggestion.SuggestionService">
<property name="indexSearchers">
<map>
<entry key="KMSearcher"> <ref bean="KMSearcherBean"></ref></entry>
</map>
</property>
</bean>
<bean id="KMSearcherBean" class="com.hp.it.km.search.web.suggestion.SuggestionIndexSearcher">
<constructor-arg index="0" value="KMSearcher" />
<constructor-arg index="1" value="C://dev//workspace//search-restful-webapp//src//main//resources//indexes//keyword" />
</bean>
类asscoaites与自动装配Autowired控制器和服务豆在这里......
@Controller
public class SuggestionController {
private SuggestionService service;
@Autowired
public void setService(SuggestionService service) {
this.service = service;
}
public SuggestionService getService() {
return service;
}
和...
@Component
public class SuggestionService {
private Map<String, IndexSearcher> indexSearchers = new HashMap<String, IndexSearcher>();
@Autowired
public void setIndexSearchers(Map<String, IndexSearcher> indexSearchers) {
this.indexSearchers = indexSearchers;
}
public SuggestionService() {
super(); }
请帮忙!
Brilliant我只是从服务类中删除组件。然后得到一个有关控制器注册两次的错误,并通过删除组件扫描按照此解决方案http://stackoverflow.com/a/4804417/491196感谢您的帮助 –