xpath - 我如何将字符串从xpath放入richler URL

Question

我需要一个到Enricher的GET参数。我想从带有xpath的消息正文中获取此参数。但是它不想工作。我怎么了

.enrich("localhost/getArticle.php?ArticleNumber="+xpath("//POSITION/ARTICLENUMMER[@TYPE='IN']/text()"), new addArticleStrategy())

但是被调用的URL是：

http://localhost/getArticle.php?ArticleNumber=XPath%3A+%2F%2FPOSITION%2FARTICLENUMMER%5B%40TYPE%3D%27IN%27%5D%2Ftext%28%29

如何从xpath而不是xpath字符串中获取值？

谢谢

更新：

全路线：

from("activemq:in")
.enrich("localhost/getArticle.php?ArticleNumber="+xpath("//POSITION/ARTICLENUMMER[@TYPE='IN']/text()"), new addArticleStrategy())
.to("file://C:/temp/")

更新2：
我尝试与评估：

from("activemq:in")
    .enrich("localhost/getArticle.php?ArticleNumber="+xpath("//POSITION/ARTICLENUMMER[@TYPE='IN']/text()").evaluate(getContext(), body().convertToString()), new addArticleStrategy())
    .to("file://C:/temp/")

但是我得到了错误：

No type converter available to convert from type: org.apache.camel.builder.ValueBuilder to the required type: org.w3c.dom.Document with value body

Answer 1

您不能将动态网址与扩展一起使用。尝试改用recipientList

编辑：

我没有尝试过（很可能打错了），但它看起来应该像这样

XPathBuilder articlexpath=xpath("//POSITION/ARTICLENUMMER[@TYPE='IN']/text()").resultType(String.class);

from("activemq:in")
.enrich("direct:getArticle", new addArticleStrategy())
.to("file://C:/temp/");

from("direct:getArticle")
.setHeader("ArticleNumber", articlexpath)
.recipientList(simple("localhost/getArticle.php?ArticleNumber=${header.ArticleNumber}"));