commons-httpclient-2.0在setParameter的时候容易顺序弄错

postMethod.setParameter("localKBURL", getLocalKBURL());
postMethod.setRequestBody(bin);


postMethod.addRequestHeader("Content-type",
"text/xml; charset=ISO-8859-1");

setParameter在setRequestBody之前,应该后者会clear parameters。
虽然按照上面的顺序应该是没有问题的,但是实际上setParameter和setHeader存在冲突,只能把参数加入Header:
postMethod.addRequestHeader("localKBURL",getLocalKBURL());

然后,再取参数时:
String localKBURL = request.getParameter("localKBURL");
if(localKBURL == null || localKBURL.length() == 0)
localKBURL = request.getHeader("localKBURL");

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