Spring 整合 Flex （BlazeDS）无法从as对象到 Java对象转换的异常：org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'java.util.Date' to required type 'java.sql.Timestamp' for property 'wfsj'; nested exception is java.lang.Ill

异常信息如下：

org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'java.util.Date' to required type 'java.sql.Timestamp' for property 'wfsj'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [java.util.Date] to required type [java.sql.Timestamp] for property 'wfsj': no matching editors or conversion strategy found

    at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:463)

    at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:494)

    at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:1097)

    at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:882)

    at org.springframework.flex.core.io.SpringPropertyProxy.setValue(SpringPropertyProxy.java:182)

    at flex.messaging.io.amf.Amf3Input.readScriptObject(Amf3Input.java:438)

    at flex.messaging.io.amf.Amf3Input.readObjectValue(Amf3Input.java:152)

    at flex.messaging.io.amf.Amf3Input.readObject(Amf3Input.java:130)

    at flex.messaging.io.amf.Amf3Input.readArray(Amf3Input.java:358)

    …………

    at flex.messaging.io.amf.AmfMessageDeserializer.readObject(AmfMessageDeserializer.java:227)

    at flex.messaging.io.amf.AmfMessageDeserializer.readBody(AmfMessageDeserializer.java:206)

    at flex.messaging.io.amf.AmfMessageDeserializer.readMessage(AmfMessageDeserializer.java:126)

    at flex.messaging.endpoints.amf.SerializationFilter.invoke(SerializationFilter.java:145)

    at flex.messaging.endpoints.BaseHTTPEndpoint.service(BaseHTTPEndpoint.java:291)

    at flex.messaging.endpoints.AMFEndpoint$$EnhancerByCGLIB$$6f090fa2.service(<generated>)

    at org.springframework.flex.servlet.MessageBrokerHandlerAdapter.handle(MessageBrokerHandlerAdapter.java:109)

    …………

Caused by: java.lang.IllegalStateException: Cannot convert value of type [java.util.Date] to required type [java.sql.Timestamp] for property 'wfsj': no matching editors or conversion strategy found

    at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:264)

    at org.springframework.beans.BeanWrapperImpl.convertIfNecessary(BeanWrapperImpl.java:448)

    ... 59 more

看异常信息大概知道属性wfsj这个字段，不能完成java.util.Date 到 java.sql.Timestamp 日期时间戳的转换。后面还有提示，没有找到匹配的conversion或editor。

conversion 在Spring中转换对象属性会用到，而editor和converter 以及formatter也是在转换对象（String –> Date, String –> Timestamp），从字符串到对象，从对象到字符串的时候会经常用到。

解决方法：
<bean id="customConfigProcessor" class="com.jp.tic.framework.flex.converter.CustomAmfConversionServiceConfigProcessor"/>
 
<flex:message-broker services-config-path="/WEB-INF/flex/services-config.xml">
    <flex:exception-translator ref="flexExceptionTranslator" />
    <flex:config-processor ref="configProcessor"/>
    <flex:config-processor ref="customConfigProcessor"/>
    
</flex:message-broker>
为message-broker对象注入CustomAmfConversionServiceConfigProcessor对象，CustomAmfConversionServiceConfigProcessor是继承AbstractAmfConversionServiceConfigProcessor对象。

AbstractAmfConversionServiceConfigProcessor对象中提供了对各个类型转换serialization/deserialization的方法。
package com.jp.tic.framework.flex.converter;
 
import java.util.HashSet;
import java.util.Set;
import org.springframework.flex.core.io.AbstractAmfConversionServiceConfigProcessor;
 
/**
 * <b>function:</b> 自定义AMF转换服务
 * @author hoojo
 * @createDate 2013-7-17 下午01:35:12
 * @file CustomAmfConversionServiceConfigProcessor.java
 * @package com.jp.tic.framework.flex.converter
 * @project JTZHJK-Server
 * @blog http://blog.csdn.net/IBM_hoojo
 * @email hoojo_@126.com
 * @version 1.0
 */
public class CustomAmfConversionServiceConfigProcessor extends AbstractAmfConversionServiceConfigProcessor {
 
    private static Set<Class<?>> classes = new HashSet<Class<?>>();
    
    @Override
    protected Set<Class<?>> findTypesToRegister() {
        return classes;
    }
}

如果你还需要添加更多自己的转化服务，那么你需要给CustomAmfConversionServiceConfigProcessor 注入conversionService对象。

<!-- 添加配置类型转换器、转换服务 -->

    <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">

         <property name="converters">

            <list>

                <bean class="com.jp.tic.framework.mvc.convert.StringToTimestampConverter"/>

                <bean class="com.jp.tic.framework.mvc.convert.DateToTimestampConverter"/>

            </list>

        </property>

        <property name="formatters">

            <list>

                <bean class="com.jp.tic.framework.mvc.formatter.SimpleDateTimeFormatAnnotationFormatterFactory"/>

                <bean class="com.jp.tic.framework.mvc.formatter.TimestampFormatterFactory"/>

            </list>

        </property>

    </bean>

<bean id="customConfigProcessor" class="com.jp.tic.framework.flex.converter.CustomAmfConversionServiceConfigProcessor">

    <property name="conversionService" ref="conversionService"/>

</bean>

巴特西

Spring 整合 Flex （BlazeDS）无法从as对象到 Java对象转换的异常：org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'java.util.Date' to required type 'java.sql.Timestamp' for property 'wfsj'; nested exception is java.lang.Ill

最新文章

热门文章

巴特西

Spring 整合 Flex （BlazeDS）无法从as对象 到 Java对象转换的异常：org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'java.util.Date' to required type 'java.sql.Timestamp' for property 'wfsj'; nested exception is java.lang.Ill

最新文章

热门文章

Spring 整合 Flex （BlazeDS）无法从as对象到 Java对象转换的异常：org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'java.util.Date' to required type 'java.sql.Timestamp' for property 'wfsj'; nested exception is java.lang.Ill