Question

我看到以下错误试图将地图注入bean。我不确定Spring是如何推断出我尝试注入的地图是org.apache.commons.collections.map.LinkedMap类型。我该如何解决这个问题？

[org.apache.commons.collections.map.LinkedMap]到必需的类型 [java.util.LinkedHashMap]属性'asyncConnectorDaoMap';嵌套异常是java.lang.IllegalArgumentException：无法转换值类型为[org.apache.commons.collections.map.LinkedMap]为必需输入[java.util.LinkedHashMap]

Spring配置

<bean id="fulfillment.management.AsyncConnectorFactory" class="com.service.async.AsyncConnectorFactory">      <property name="asyncConnectorDaoMap">         <map key-type="java.lang.String" value-type="com.service.async.AsyncConnectorDao">
                     <entry key="ACCOUNT_MANAGEMENT_CONTROLLER" value-ref="core.commons.AsyncConnectorDao"></entry>
                     <entry key="CUSTOMER_SERVICE" value-ref="core.commons.AsyncConnectorDao"></entry>
                     <entry key="ACCOUNT_SERVICE" value-ref="core.commons.AsyncConnectorDao"></entry>
                     <entry key="LOCATION_SERVICE" value-ref="core.commons.AsyncConnectorDao"></entry>        </map>       </property>  </bean>

以下代码

import java.util.LinkedHashMap;


public class AsyncConnectorFactory {

    private LinkedHashMap<String, AsyncConnectorDao> asyncConnectorDaoMap;

    public LinkedHashMap<String, AsyncConnectorDao> getAsyncConnectorDaoMap() {
        return asyncConnectorDaoMap;
    }

    public void setAsyncConnectorDaoMap(
            LinkedHashMap<String, AsyncConnectorDao> asyncConnectorDaoMap) {
        this.asyncConnectorDaoMap = asyncConnectorDaoMap;
    }

    public AsyncConnectorDao getAsyncConcurrentConnectorDao(String serviceIdentifier) {
        return asyncConnectorDaoMap.get(serviceIdentifier);
    }
}

修改后的工作配置

    <bean id="fulfillment.management.AsyncConnectorFactory" class="com.service.async.AsyncConnectorFactory">
      <property name="asyncConnectorDaoMap" ref="asyncConnectorDaoMap1"/>
</bean> 

<util:map id="asyncConnectorDaoMap1" map-class="java.util.LinkedHashMap">
             <entry key="ACCOUNT_MANAGEMENT_CONTROLLER" value-ref="core.commons.AsyncConnectorDao"></entry>
             <entry key="CUSTOMER_SERVICE" value-ref="core.commons.AsyncConnectorDao"></entry>
             <entry key="ACCOUNT_SERVICE" value-ref="core.commons.AsyncConnectorDao"></entry>
             <entry key="LOCATION_SERVICE" value-ref="core.commons.AsyncConnectorDao"></entry>

Answer 1

您是否尝试先创建地图，然后将其作为参考传递。

<util:map id="p:asyncConnectorDaoMap" map-class="java.util.LinkedHashMap">
    <entry key="ACCOUNT_MANAGEMENT_CONTROLLER" value-ref="asyncConnectorDao"/>
    <entry key="CUSTOMER_SERVICE" value-ref="asynConnectorService"/
</util:map>

<bean id="asyncConnectorDao" class="core.commons.AsyncConnectorDao" />
<bean id="asynConnectorService" class="core.commons.AsyncConnectorService" />


<bean id="fulfillment.management.AsyncConnectorFactory" class="com.service.async.AsyncConnectorFactory">      
    <property name="asyncConnectorDaoMap" ref="asyncConnectorDaoMap"/>       
</bean>

确保已创建DAO和服务bean。考虑使用MapFactoryBean

使用架构，以便使用util

http://www.springframework.org/schema/util 
http://www.springframework.org/schema/util/spring-util-3.0.xsd

春天注入地图问题

1 个答案: