基于imx6 的gsoap的简单使用（包含libxml2，libiconv的简单使用）
作者：互联网
本文介绍了gsoap的简单使用 包含xml的解析 ，编码格式的转换等：
soap 获取服务器数据：
int get_info( server_info *sys_info, struct _tempuri__queryObjectOut *queryObject,struct _tempuri__queryObjectOutResponse *result_res)
{
char *result;
char server[MAX_PATH];
struct soap soap;
char *temp;
char param[MAX_PATH];
char str[20];
static int count = 0;
free_queryObject(queryObject);
strncpy(str,sys_info->sn,10); // 去掉换行
// 填写上传的xml 请求参数
strcpy (param,"<?xml version=\"1.0\" encoding=\"gb2312\"?>\r\n");
strcat (param,"<root>\r\n");
strcat (param," <QueryCondition>\r\n");
strcat (param," <SN>");
//strcat (param,str);
strcat (param,"123456");
strcat (param,"</SN>\r\n");
strcat (param," </QueryCondition>\r\n");
strcat (param,"</root>");
queryObject->xtlb = strdup("xx");
queryObject->jkxlh = strdup("x'x'x");
queryObject->jkid = strdup("x'x'x");
queryObject->xmlDoc = strdup(param);
//fprintf(stderr, "queryobjecet---param:%s\n",param);
soap_init1(&soap,SOAP_C_UTFSTRING);//SOAP_C_UTFSTRINGSOAP_XML_INDENT // soap init
if (soap.error)
{
printf("soap error!!! \n");
soap_print_fault(&soap, stderr);
//exit(1); //
return 1; // saop 初始化错误
}
//fprintf(stderr, "queryobjecet:%s\n",queryObject->xmlDoc);
//fprintf(stderr, "queryobjecet:%s\n",queryObject->jkxlh);
//only for test
sys_info->server_port = 8089;
snprintf(sys_info->server_ip, MAX_PATH, "10.0.5.46");
snprintf(server, MAX_PATH, "http://%s:%d/TmriOutAccess.svc?singleWsdl",sys_info->server_ip, sys_info->server_port);
//fprintf(stderr, "queryobjecet--server:%s\n",server);
soap_call___tempuri__queryObjectOut(&soap,
server,
"http://tempuri.org/ITmriOutAccess/queryObjectOut",
queryObject,
result_res
);
if (soap.error)
{
printf("soap error after send !!! \n");
soap_print_fault(&soap, stderr);
//exit(1);
soap_destroy(&soap);
soap_end(&soap);
soap_done(&soap);
free_queryObject(queryObject);
return 2; // soap 执行返回错误
}
fprintf(stderr, "test loop times = %d\n",count++);
//fprintf(stdout,"soap result %s\n",result_res->queryObjectOutResult);
soap_destroy(&soap);
soap_end(&soap);
soap_done(&soap);
int return_value = message_handle_query(sys_info,result_res);
fprintf(stderr, "test loop return values = %d\n",return_value);
switch(return_value) // 返回信息处理，提取相关信息
{
case 0: break;
default: ;
}
return 0; // 无错误 返回 0
}
xml 解析和 格式转换程序：
int message_handle_query(server_info *sys_info,struct _tempuri__queryObjectOutResponse *result_res)
{
int nXmlSize = 0;
xmlDocPtr pstXmlDoc ;
xmlNodePtr pstXmlNode = NULL;
xmlNodePtr pstXmlSubNode = NULL;
char *pszXmlNodeContent = NULL;
char paramt[MAX_PATH];
size_t nread;
size_t nconv;
size_t avail = 0;
size_t insize = 0;
char dst[2048] = {0}; //
if(strlen(result_res->queryObjectOutResult)<200) // 长度不够，认为数据返回错误
{
return 1; //
}
char *outbuf = dst;
char *in = result_res->queryObjectOutResult;
char *out = outbuf;
size_t dst_len = sizeof(dst);
size_t src_len = strlen(result_res->queryObjectOutResult);
iconv_t conv = iconv_open ("utf-8", "gbk"); //格式转换
if(conv == (iconv_t) -1)
{
fprintf(stdout,"conv error !!!");
return 2;
}
nconv = iconv(conv,&in,&src_len,&out,&dst_len);
if (nconv == (size_t) -1)
{
if (errno == EINVAL)
{
fprintf(stdout,"EINVAL\n");
}
else
{
fprintf(stdout,"error\n");
}
return 3;
}
//printf("%s: \n",dst);
iconv_close (conv);
//printf("%d: retertret xml\n",nXmlSize);
nXmlSize = sizeof(dst);
pstXmlDoc = xmlReadMemory(dst, nXmlSize,NULL,"utf-8",XML_PARSE_RECOVER);
if(pstXmlDoc == NULL)
{
fprintf(stdout,"%s_%d: xmlParseMemory failed\n",result_res->queryObjectOutResult,nXmlSize);
return 4;
}
xmlNodePtr root = xmlDocGetRootElement(pstXmlDoc);
xmlNodePtr curr = root;
//success_t++;
//fprintf(stdout,"Node name is %s!\n", root->name);
xmlNodePtr pFirst = root->xmlChildrenNode;// 获取字节点
while(NULL != pFirst)
{
if(!xmlStrcmp(pFirst->name, (const xmlChar *)("head")))
{
xmlNodePtr pSecond = pFirst->xmlChildrenNode;
while(NULL != pSecond)
{
xmlChar* value= NULL;
if(!xmlStrcmp(pSecond->name, (const xmlChar *)("code")))
{
value = xmlNodeGetContent(pSecond);
//printf("\n%s-->%s\n", pSecond->name, value);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pSecond->name, (const xmlChar *)("message")))
{
value = xmlNodeGetContent(pSecond);
//printf("\n%s-->%s\n", pSecond->name, value);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pSecond->name, (const xmlChar *)("rownum")))
{
value = xmlNodeGetContent(pSecond);
//printf("\n%s-->%s\n", pSecond->name, value);
xmlFree(value);
value = NULL;
}
pSecond = pSecond->next;
}
}
if(!xmlStrcmp(pFirst->name, (const xmlChar *)("body")))
{
xmlNodePtr pSecond = pFirst->xmlChildrenNode;
while(NULL != pSecond)
{
if(!xmlStrcmp(pSecond->name, (const xmlChar *)("drvexam")))
{
xmlNodePtr pThird = pSecond->xmlChildrenNode;
while(NULL != pThird)
{
xmlChar* value= NULL;
if(!xmlStrcmp(pThird->name, (const xmlChar *)("SN")))
{
value = xmlNodeGetContent(pThird);
//printf("the size of value = %d \n",sizeof(value));
snprintf(sys_info->sn, MAX_PATH,"%s",value);
//printf("\n%s-->%s\n", pThird->name, sys_info->sn);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("CLXH")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->clxh, MAX_PATH,"%s",value );
//printf("\n%s-->%s\n", pThird->name, sys_info->clxh);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("ZDIP")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->server_ip, MAX_PATH,"%s",value );
//printf("\n%s-->%s\n", pThird->name, sys_info->server_ip);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("SCDK")))
{
value = xmlNodeGetContent(pThird);
sys_info->server_port = atoi(value);
//printf("\n%s-->%d\n", pThird->name, sys_info->server_port);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("KCHP")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->car_num, MAX_PATH,"%s",value );
//printf("\n%s-->%s\n", pThird->name, sys_info->car_num);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("KSDD")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->exam_location, MAX_PATH,"%s",value );
//printf("\n%s-->%s\n", pThird->name, sys_info->exam_location);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("KCXH")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->kcxh, MAX_PATH,"%s",value );
//printf("\n%s-->%s\n", pThird->name, sys_info->kcxh);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("KSKM")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->kskm, MAX_PATH,"%s",value );
//printf("\n%s-->%s\n", pThird->name, sys_info->kskm);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("WG")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->gateway, MAX_PATH,"%s",value );
//printf("\n%s-->%s\n", pThird->name, sys_info->gateway);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("ZWYM")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->netmask, MAX_PATH,"%s",value );
//printf("\n%s-->%s\n", pThird->name, sys_info->netmask);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("XTXLH")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->xtxlh, MAX_PATH,"%s",value );
printf("\n%s-->%s\n", pThird->name, sys_info->xtxlh);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("XHPZ")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->xhpz, MAX_PATH,"%s",value );
printf("\n%s-->%s\n", pThird->name, sys_info->xhpz);
xmlFree(value);
value = NULL;
}
if(!xmlStrcmp(pThird->name, (const xmlChar *)("SXSJ")))
{
value = xmlNodeGetContent(pThird);
snprintf(sys_info->sxsj, MAX_PATH,"%s",value );
printf("\n%s-->%s\n", pThird->name, sys_info->sxsj);
xmlFree(value);
value = NULL;
}
pThird = pThird->next;
}
}
pSecond = pSecond->next;
}
}
pFirst = pFirst->next;
}
xmlFreeDoc(pstXmlDoc);
return 0;
}
本文介绍了，soap的简单使用以及xml文件的解析，格式转换等使用方法，还有比较麻烦的makefile 后面有时间再写。
关于 libxml2 和 libiconv的交叉编译需要自己找博客编译，简单思路就是安装交叉编译器->解压库文件->根据需要配置config文件->执行配置（设置编译后的文件路径）->编译&安装->复制到开发板的相关目录。如果读者有什么需要和建议欢迎留言交流。
标签：info,sys,name,libxml2,value,libiconv,pThird,gsoap,soap 来源： https://blog.csdn.net/Nyiragongo/article/details/91044798