項目問題

時間 2019-11-21

標籤項目問題简体版

原文原文鏈接

index.html 未包含<script language="javascript" type="text/javascript" src="./js/ajaxbasic.js "></script>不能成功調用XHRGet函數。與此同時systemlanguage.html也成功調用XHRGet函數。javascript

這部份內容是對配置文件的保存css

cgi 裏的C語言裏邊的html

ucfg_config.xml ucfg_factory.xml 裏的文件看元素是否爲頂層元java

<language>
<ENABLE>1</ENABLE>
</language>linux

怎麼把文件一個一個讀出來？ajax

答:有專門的讀函數來讀取.json

cgi從服務器讀取數據的過程 1數組

#include<sys/ioctl.h>
#include<sys/types.h>
#include<sys/stat.h>
#include<sys/socket.h>
#include<sys/socket.h>
#include<fcntl.h>
#include<unistd.h>
#include<netinet/in.h>
#include<netinet/ether.h>
#include<arpa/inet.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<net/if.h>
#include<arpa/inet.h>
#include<pthread.h>

#include"cgicommon.h"
#include"html-lib.h"
#include"cgi-lib.h"
#include"string-lib.h"
#include"ini.h"
#include "ucfg_lib.h"

static pthread_cond_t cgi_cond = PTHREAD_COND_INITIALIZER;
static pthread_mutex_t cgi_lock = PTHREAD_MUTEX_INITIALIZER;

char langbuf[]={"aaaaa"};//定義字符串
static int GetLanguage(llist entries, int set)
{
    if(set == 0)
    {
        CGI_XML_VALUE("LANGUAGE",langbuf);     //langbuf字符數組首地址 LANGUAGE命令
    }
    return 0;
}
int main()
{
 list entries;
 int ret=0;
 int init_ucfg_ret=-1;
 char* command;
 
 list_create(&entries);
 CG8I_XML_BEGIN();
 init_ucfg_ret=init_ucfg();
 if(init_ucfg_ret<0){
    CGI_XML_VALUE("Error", "%s", "init_ucfg Fail");
    goto out;
}

ret = read_cgi_input(&entries);
 if(ret)
 {
  comand=cgi_val(entries, CGI_REQUEST_COMMAND);
  if(command==NULL)
  {
       CGI_XML_VALUE("Error","%s", "NoCommand");
  }
  else if(!strcmp(command, ""))
  {
     pthread_mutex_lock(&cgi_lock);
     GetLanguage(entries,0);
     pthread_mutex_unlock(&cgi_lock);
  }
  else
  {
      CGI_XML_VALUE("Error","%s", "CGI Unkown Command");
  }
 }
out:
 if(init_ucfg_ret==0)
   deinit_ucfg();
 CGI_XML_END();
 list_clear(&entries);
 
  pthread_mutex_destroy(&cgi_lock);
  pthread_cond_destroy(&cgi_cond);

  return 0;
}

從數組中讀取字符串數據,服務器

如果從服務器上讀取文件則修改框架

static void updateLanguageConf()
{
  system("ucfg get config language > /tmp/language.conf"); //此處命令是linux下的命令
}

static int GetLanguage(llist entries, int set)
{
  char cmd_str[256];
  char ini_file[256];
  char get_value[LENGTH_INI_KEY_AND_VALUE] ={0,};
  char *key;
  char ipaddress[32];
  char val_set[32];
  char *val;

  if(set == 0)
  {
     sprintf(ini_file,"/tmp/language.conf"); //服務器上的文本路徑
     key="ENABLE";         //Ucfg_factory.xml  Ucfg_config.xml 文件裏邊的屬性ENABLE <language> \n                <ENABLE>0<ENABLE> \n <language>
     if(0 > GetPrivateProfileSring(
                    "", //Nosection
                    key,
                    "0",
                    get_value,
                    sizeof(get_value) - 1, 
                     ini_file)) {
         return -1;
      }
      CGI_XML_VALUE("LANGUAGE",get_value);
  } 
  return 0;
}


static int SetStatus(llist entries, int set)
{
    char *val;
    val = cgi_val(entries, "LANG");     //此處是XHRPost()第三個參數var param = "Command=SetlanguageEnable" + "&LANG=" + autoexec;
    write_ucfg_xml(CONF_BLK,"/language/ENABLE",val);
    updateLanguageConf();
    return 0;
}

int main()
{
    llist entries;
    int ret=0;
    int init_ucfg_ret=-1;
    char* command;
    
    list_create(&entries);
    CGI_XML_BEGIN();
    init_ucfg_ret=init_ucfg();
    if(init_ucfg_ret<0){
        CGI_XML_VALUE("Error","%s","init_ucfg Fail");
        goto out;
    }
     
    ret = read_cgi_input(&entries);
    if(ret)
    {
           command = cgi_val(entries, CGI_REQUEST_COMMAND);
           if(command == NULL)
           {
                CGI_XML_VALUE("Error", "%s", "NoCommand");
           }
           else if(!strcmp(command, "Language"))
           {
                 pthread_mutex_lock(&cgi_lock);
	
				GetLanguage(entries, 0);
				pthread_mutex_unlock(&cgi_lock);        
           }
           else if (!strcmp(command, "SetlanguageEnable"))  //當js裏邊XHRPost()命令爲SetlanguageEnable
           {
              SetStatus(entries,0);   //寫入函數被調用
           }
           else
           {
               CGI_XML_VALUE("Error","%s","CGI Unknown Command");
           }
    }
    out:
       此處同上分代碼
}

以下來解析，此時經過SH，CGI_MXL_VALUE不能解析的三種格式,不支持json的格式須要轉換

CGI_MXL_VALUE(element,arg...)\

do{\

fprintf(stdout, "<%s>", element);\

printf(arg);

fprintf(stdout, "</%s>\n",element );\

}while(0)

js部分的代碼

function getLanguageResults(xmlDoc)
{
  if(hasError(xmlDoc))
  {
      showError(xmlDoc);
      return ;
  }
  var g_lang_info = getDataFromTag(xmlDoc, "LANGUAGE");
  alert("info:"+g_lang_info);
  
}
function getLanuageHandless()
{
   alert("bb");
   var url="./cgi-bin/syslanguage.cgi?Command=Language";   這裏的syslanguage.cgi && command必定要改對
   XHRGet(getLanuageResults, url, false);
   alert("ccc");
}
function initSystem()
{
   alert("init");
   getLanuageHandless();
}

function initialize()
{
   try
   {
       alert("firxt init");
       top.initSystem();
       initSystem();
   }
   catch(E){}
}

並經過wireshark，搜索http 右鍵追蹤流 TCP流中搜索Languge並查看CGI_MXL_VALUE函數的解析的數據。

有專門的讀函數來讀文件，

如下是寫函數的命令

系統命令ucfg get config languge ; ucfg get 是命令 languae是對象在ucfg_factory.xml ucfg_config.xml中定義

static void updateLanguageConf()

{

system("ucfg get config language > /tmp/language.conf");

};

寫入函數

static int SetStatus(llist entries, int set )

{

char *val;