无法在xml中获取Soap响应的根节点
问题描述:
今天我第一次开始学习libxml。并一直努力寻找肥皂响应的根节点。该死的挣扎。无法在xml中获取Soap响应的根节点
这是XML缓冲区
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:sti_xsd="http://www.openmobilealliance.org/schema/sti/v1_0" xsi:type="soapenv:Envelope">
<soapenv:Body>
<sti_xsd:TranscodingResponse>
<sti_xsd:originatorID>test</sti_xsd:originatorID>
<sti_xsd:operationID>1.0</sti_xsd:operationID>
<sti_xsd:mainReturnResult>
<sti_xsd:returnCode>2000</sti_xsd:returnCode>
<sti_xsd:returnString>All 1 transcoding job(s) succeeded</sti_xsd:returnString>
</sti_xsd:mainReturnResult>
<sti_xsd:totalDuration>121</sti_xsd:totalDuration>
<sti_xsd:jobResult>
<sti_xsd:jobID>JOB26</sti_xsd:jobID>
<sti_xsd:extensionData>
<sti_xsd:property>
<sti_xsd:name>van.sti.trx.MemoryUsage</sti_xsd:name>
<sti_xsd:value>3568808</sti_xsd:value>
</sti_xsd:property>
</sti_xsd:extensionData>
<sti_xsd:mainReturnResult>
<sti_xsd:returnCode>2000</sti_xsd:returnCode>
<sti_xsd:returnString>Successful TranscodingJob (200): Success</sti_xsd:returnString>
</sti_xsd:mainReturnResult>
<sti_xsd:duration>119</sti_xsd:duration>
<sti_xsd:output>
<sti_xsd:contentType>application/vnd.wap.mms-message</sti_xsd:contentType>
<sti_xsd:contentTypeParams>
<sti_xsd:property>
<sti_xsd:name>type</sti_xsd:name>
<sti_xsd:value>application/smil</sti_xsd:value>
</sti_xsd:property>
<sti_xsd:property>
<sti_xsd:name>start</sti_xsd:name>
<sti_xsd:value><mms.smil></sti_xsd:value>
</sti_xsd:property>
</sti_xsd:contentTypeParams>
<sti_xsd:location>cid:133699816987026.JOB26</sti_xsd:location>
<sti_xsd:mediaSize>40693</sti_xsd:mediaSize>
</sti_xsd:output>
</sti_xsd:jobResult>
<sti_xsd:extensionData>
<sti_xsd:property>
<sti_xsd:name>van.sti.trx.session.id</sti_xsd:name>
<sti_xsd:value>STI/gesti05/120514_14h/STI17_23m12s214_00</sti_xsd:value>
</sti_xsd:property>
<sti_xsd:property>
<sti_xsd:name>van.sti.server.hostname</sti_xsd:name>
<sti_xsd:value>getrx01</sti_xsd:value>
</sti_xsd:property>
</sti_xsd:extensionData>
</sti_xsd:TranscodingResponse>
</soapenv:Body>
</soapenv:Envelope>
而下面是我的代码:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
void parseStory (xmlDocPtr doc, xmlNodePtr cur)
{
xmlChar *key;
cur = cur -> xmlChildrenNode;
printf ("Here\n");
while (cur != NULL)
{
if ((!xmlStrcmp (cur -> name, (const xmlChar *) "returnCode")))
{
key = xmlNodeListGetString (doc, cur -> xmlChildrenNode,1);
printf ("keyword: %s\n", key);
xmlFree (key);
}
cur = cur -> next;
}
return ;
}
static void parseDoc (char *docname)
{
xmlDocPtr doc;
xmlNodePtr cur;
doc = xmlParseFile (docname);
if (doc == NULL)
{
fprintf (stderr, "Document not parsed successfully. \n");
return;
}
printf ("Parsing Successful\n");
cur = xmlDocGetRootElement (doc);
if (cur == NULL)
{
fprintf (stderr, "empty document \n");
xmlFreeDoc (doc);
printf ("Got the root Node\n");
if (xmlStrcmp (cur->name, (const xmlChar *) "soapenv:Envelope"))
{
fprintf (stderr, "Document of the wrong type root node != ");
xmlFreeDoc(doc);
return;
}
printf ("Got the root \n");
cur = cur -> xmlChildrenNode;
while (cur != NULL)
{
if (cur->type == XML_ELEMENT_NODE) {
printf ("Inside if \n");
if (!(xmlStrcmp (cur->name, (const xmlChar *) "mainReturnResult")))
{
printf ("Inside \n");
parseStory (doc, cur);
}
cur = cur -> xmlChildrenNode;
continue;
}
cur = cur -> next;
}
xmlFreeDoc (doc);
return;
}
int main (int argc, char **argv)
{
char *docname;
if (argc <= 1)
{
printf ("Usage: %s docname\n", argv[0]);
return (0);
}
docname = argv [1];
parseDoc (docname);
return (1);
}
return;
}
如前所述,我努力找出根节点。 它说“错误类型根节点的文档!=” 谢谢。
答
您遇到的问题是“soapenv:Envelope”不是节点的名称。该名称仅仅是“soapenv”别名引用的名称空间中的“Envelope”。
命名空间是什么让你困惑在这里。
附录:
你已经有根节点。你在开始的时候有它:
cur = xmlDocGetRootElement (doc);
cur
是根节点。
如果立即执行后:
printf("Name = %s\n", cur->name);
你会看到,你会得到“信封”,这是正确的。
下面是一个转储文档元素的简单示例。如果你在分配cur
之后立即调用它,你会发现它基本上倾倒了你的树。
static void dumpNode (int indent, xmlNodePtr node) {
while(node != NULL) {
if (node->type == 1) {
int i;
for(i = 0; i < indent; i++) {
printf(" ");
}
printf("%s : %s\n", node->ns->prefix, node->name);
}
dumpNode(indent + 1, node->children);
node = node->next;
}
}
知道,有几个“节点类型”的libxml中,最引人注目的是1型,这是元素和3型,这是元素之间的文本。此代码检查类型1以打印出名称和前缀。但是也要注意,无论节点类型如何,它都会盲目地在子节点上调用dumpNode。
因此,最终,您的根节点将是类型1元素,其名称为Envelope
(cur-> name),一个href为http://schemas.xmlsoap.org/soap/envelope/
(cur-> ns-> href)的名称空间,前缀为soapenv
(cur-> ns->前缀)。命名空间前缀不是命名空间。您无法比较节点的前缀,并期望比较名称空间。命名空间由href标识。前缀是一种简写,即使对于相同的名称空间,它也可以从一个节点变为另一个节点(它往往不是,但它可以,尤其是在导入其他XML文档时)。
好的。但是,这种xml缓冲区的根节点是什么?我怎样才能得到根节点? – sach 2012-07-08 14:32:12