自定义Spring集成分路器抛出错误

Question

嗨，我正在尝试从单个消息中提取多条消息，并使用拆分器元素将这些消息拆分为多条消息。但是我的拆分器抛出以下错误

2015-10-26 15:09:06，257[[ACTIVE]execute thread:' 0 ' for queue:' WebLogic . kernel . default(self-tuning)']ERROR org . spring framework . web . Context . Context loader-Context初始化失败org . spring framework . beans . factory . beancreationexception:创建名为' org . spring framework . integration . handler . messagehandler chain # 1 '的bean时出错:无法创建内部bean ' org . spring framework . integration . config . splitterfactorybean # 20e 2嵌套异常为org . spring framework . beans . factory . beancreationexception:创建名为“org . spring framework . integration . config . splitterfactorybean # 20 e2ef 61”的bean时出错:FactoryBean在对象创建时引发异常；嵌套异常为Java . lang . illegalargumentexception:发现方法匹配的参数类型[class java.lang.String]不明确:[public Java . util . list com . sales order . payment . util . poslogtoisellerequests . poslogtransformer(Java . lang . string)，public Java . util . list com . sales order . payment . util . poslogtoisellerequests . split(Java . util)]，位于org . spring framework . beans . factory . support . beandefinitionvalueresolver . resolveinnerbean(bean definitionvalue

分路器块：

<si:splitter>

        <bean
            class="com.ikea.pip.salesorder.payment.util.PoslogToIsellRequests"
            p:mapTaxRateCategory="${common.map.tax.rate.category}" p:buCode="${common.country.code.iso}"
            p:sourceRegion="${common.isell.order.source}" p:countryCode ="${common.country.code.iso}" />
        </si:splitter>

类的 Java 代码：

public class PoslogToIsellRequests implements Splitter {

private static final Logger LOG = LoggerFactory
        .getLogger(PoslogToIsellRequests.class);

private static final String ORDER= "SpecialOrderNumber";
private static XMLInputFactory inputFactory;
private final SimpleXslt transformPoslogXslt = new SimpleXslt(
        "xsl/POSLogToAddPaymentRequest.xsl");
private String sourceRegion;
private String buCode;
private String mapTaxRateCategory;
private String countryCode;
static {

    inputFactory = XMLInputFactory.newInstance();
    inputFactory.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE,
            Boolean.TRUE);

}

public void setCountryCode(String countryCode) {
    this.countryCode = countryCode;
}
@Override
public List<String> split(List<String> xmlToSplit) {
    List<String> splittedPayload = new ArrayList<String>();

    for (String xml : xmlToSplit) {
        splittedPayload.addAll(split(xml));
    }

    return splittedPayload;
}
public void setSourceRegion(String sourceRegion) {
    this.sourceRegion = sourceRegion;
}

public void setBuCode(String buCode) {
    this.buCode = buCode;
}
public void setMapTaxRateCategory(String mapTaxRateCategory) {
    this.mapTaxRateCategory = mapTaxRateCategory;
}
/* @param xmlToSplit
 * @return
 * @throws Exception
 */
@Override
public List<String> split(String xmlToSplit) {
    List<String> resultSet=new ArrayList<String>();
    resultSet=poslogTransformer(xmlToSplit);
    return resultSet;
}

public List<String> poslogTransformer(String xmlToSplit) {
    List<String> resultSet=null;
    Set<String> orderNos=new HashSet<String>();
    String payload = xmlToSplit;
    try{
        orderNos= parseOrderNos(payload);

        resultSet=new ArrayList<String>();
    }
    catch (XMLStreamException e) {
        LOG.warn("Could not parse Transaction");

    }
    for(String orderno:orderNos){
        Map<String, String> parameters = createParams(orderno);
    String result = transformPoslogXslt.transform(payload,
            parameters);
    resultSet.add(result);
    }
    return resultSet;
    }
private Map<String, String> createParams(String orderNo) {
    Map<String, String> parameters = new HashMap<String, String>();


    parameters.put("sourceRegion", sourceRegion);
    parameters.put("buCode",buCode );
    parameters.put("mapTaxRateCategory",mapTaxRateCategory );
    parameters.put("orderNo",orderNo );
    parameters.put("countryCode", countryCode);
    return parameters;
}
private Set<String> parseOrderNos(String payload) throws XMLStreamException {
    Set<String> orders=new HashSet<String>();
    XMLEventReader reader;
    reader = inputFactory.createXMLEventReader(new StringReader(payload));

    String currentElement = "";

    try {
        while (reader.hasNext()) {
            XMLEvent event = reader.nextEvent();

            if (event.isStartElement()) {

                currentElement = event.asStartElement().getName()
                        .getLocalPart();


            } else if (currentElement.equals(ORDER)
                    && event.isCharacters()) {

                String value = event.asCharacters().getData();
                if(StringUtils.isNotBlank(value)){
                orders.add(value);}

            }
        }
    } finally {

        reader.close();
    }

    return orders;
}

}

拆分器接口只包含两个拆分方法。Spring集成中是否不允许方法重载？

一个额外的查询，我是否可以将字符串输入作为参数而不是消息？

Answer 1

如果您没有明确地标识拆分器中的方法名，框架将检测多个方法候选项，并且不能确定调用哪个方法。

因此:

找到用于方法匹配的不明确的参数类型[class Java . lang . string]:[public Java . util . list com . sales order . payment . util . poslogtoisellerequests . poslogtransformer(Java . lang . string)，public Java . util . list com . sales order . payment . util . poslogtoisellerequests . split(Java . util . list)]

除非指定< code>method="split"，否则POJO方法匹配会考虑所有公共方法。

如果添加该值，框架将调用相应的拆分方法，具体取决于入站消息的有效负载类型。