所以我已经从这里得到了帮助所以我想为什么不再尝试一下呢?任何建议都将不胜感激。
我正在使用HTTP客户端并发出POST请求;响应是一个XML主体,如下所示:
<?xml version="1.0" encoding="UTF-8"?>
<invokeResult>
<method name="RS">
<params>
<param name="sp" value="" />
<param name="cp" value="" />
<param name="ck" value="" />
</params>
</method>
<status>OK</status>
<result>
<status>ENDED</status>
<reportUrl></reportUrl>
<runId></runId>
<pass count="0" />
<fail count="1" />
<message>column,report</message>
</result>
</invokeResult>
现在...
我有一个
的HttpEntityString responseString = EntityUtils.toString(response.getEntity());
我想通过java代码从xml响应中获取<pass count="0" />
的值。有人可以帮我吗?
我制作的详细代码,但是获得空指针异常。
DefaultHttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet("REQUEST-URL");
HttpResponse response = client.execute(request);
if (response.getStatusLine().getStatusCode() == 200 && response.getEntity() != null) {
String responseString = EntityUtils.toString(response.getEntity());
responseString=responseString.replaceAll("<?xml*?>", "").trim();
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory
.newInstance();
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document doc = docBuilder.parse(new InputSource(new StringReader(
responseString)));
NodeList orderNode = doc.getElementsByTagName("<pass count=");
String strOrdNo = orderNode.item(0).getTextContent();
logger.info("pass Value = " + strOrdNo);
由于
答案 0 :(得分:0)
请注意,pass
和fail
是空标记(标记关闭为/>
)并且它们不包含任何值。如果您尝试提取count
属性的值,可以尝试以下
NodeList orderNode = doc.getElementsByTagName("pass");
String strOrdNo = orderNode .item(0).getAttributes().getNamedItem("count").getNodeValue();
logger.info("pass Value = " + strOrdNo);