cgic問題，麻煩看看
麻煩看看如下程序：
test1:
#include <stdio.h>
#include "cgic.h"
#include <string.h>
#include <stdlib.h>
#if 1
#define SERVER_NAME cgiServerName
#endif
void CookieSet();
int cgiMain()
{
CookieSet();
cgiHeaderContentType("text/html");
printf("<form name=\"form1\" method=\"post\" action=\"test2\">");
printf("<input name=cname type=text size=15 maxlength=8>");
printf("<br>");
printf("<input name=cvalue type=text size=15 maxlength=8>");
printf("<input name=\"Submit\" type=\"submit\" class=\"button\" value=\"提交\">");
printf("</form>");
return 0;
}
void CookieSet()
{
char cname;
char cvalue;
/* Must set cookies BEFORE calling cgiHeaderContentType */
cgiFormString("cname", cname, sizeof(cname));
cgiFormString("cvalue", cvalue, sizeof(cvalue));
//printf("strlen(cname)=%d\n",strlen(cname));
if (strlen(cname)) {
/* Cookie lives for one day (or until browser chooses
to get rid of it, which may be immediately),
and applies only to this script on this site. */
cgiHeaderCookieSetString(cname, cvalue,
86400, cgiScriptName, SERVER_NAME);
}
}
test2:
#include <stdio.h>
#include "cgic.h"
#include <string.h>
#include <stdlib.h>
void Cookies();
int cgiMain()
{
cgiHeaderContentType("text/html");
Cookies();
printf("<a href=test3>111</a>");
return 0;
}
void Cookies()
{
char **array, **arrayStep;
char cname, cvalue;
if (cgiCookies(&array) != cgiFormSuccess) {
return;
}
printf("*arrayStep=%d\n",*arrayStep);
arrayStep = array;
fprintf(cgiOut, "<table border=1>\n");
fprintf(cgiOut, "<tr><th>Cookie<th>Value</tr>\n");
while (*arrayStep) {
char value;
fprintf(cgiOut, "<tr>");
fprintf(cgiOut, "<td>");
cgiHtmlEscape(*arrayStep);
fprintf(cgiOut, "<td>");
cgiCookieString(*arrayStep, value, sizeof(value));
cgiHtmlEscape(value);
fprintf(cgiOut, "\n");
arrayStep++;
}
fprintf(cgiOut, "</table>\n");
cgiFormString("cname", cname, sizeof(cname));
cgiFormString("cvalue", cvalue, sizeof(cvalue));
if (strlen(cname)) {
fprintf(cgiOut, "New Cookie Set On This Call:<p>\n");
fprintf(cgiOut, "Name: ");
cgiHtmlEscape(cname);
fprintf(cgiOut, "Value: ");
cgiHtmlEscape(cvalue);
}
cgiStringArrayFree(array);
}
我不明白為什麼printf("*arrayStep=%d\n",*arrayStep);為０
cookie沒有保存我的內容？請問用過cgic庫的大俠指點下
test3:
#include <stdio.h>
#include "cgic.h"
#include <string.h>
#include <stdlib.h>
void Cookies();
int cgiMain()
{
cgiHeaderContentType("text/html");
Cookies();
return 0;
}
void Cookies()
{
char **array, **arrayStep;
char cname, cvalue;
if (cgiCookies(&array) != cgiFormSuccess) {
return;
}
arrayStep = array;
fprintf(cgiOut, "<table border=1>\n");
fprintf(cgiOut, "<tr><th>Cookie<th>Value</tr>\n");
printf("*arrayStep=%d\n",*arrayStep);
while (*arrayStep) {
char value;
fprintf(cgiOut, "<tr>");
fprintf(cgiOut, "<td>");
cgiHtmlEscape(*arrayStep);
fprintf(cgiOut, "<td>");
cgiCookieString(*arrayStep, value, sizeof(value));
printf("value=%s\n",value);
cgiHtmlEscape(value);
fprintf(cgiOut, "\n");
arrayStep++;
}
fprintf(cgiOut, "</table>\n");
cgiFormString("cname", cname, sizeof(cname));
cgiFormString("cvalue", cvalue, sizeof(cvalue));
if (strlen(cname)) {
fprintf(cgiOut, "New Cookie Set On This Call:<p>\n");
fprintf(cgiOut, "Name: ");
cgiHtmlEscape(cname);
fprintf(cgiOut, "Value: ");
cgiHtmlEscape(cvalue);
fprintf(cgiOut, "<p>\n");
fprintf(cgiOut, "If your browser accepts cookies (many do not), this new cookie should appear in the above list the next time the form is submitted.<p>\n");
}
//cgiStringArrayFree(array);
}
《解決方案》
使用 cookie 需要注意幾點:
1. 過期時間, 不要設置成過去, 這種操作是刪除 cookie
2. 作用對象, 是必須是同一對象. 如
http://ip/test1 不能為 http://ip/test2 設置 cookie.
明白你錯在哪裡了吧.
另外, 再給你一個簡單的 cookie 的示例:
這個例子上有兩個輸入框, 兩個按鈕, 分別用於設置, 我查詢 cookie.
#!/usr/bin/cspengine
<html>
<body>
<% /* user click set command */
if (!isblankstr(G("set"))) {
setcookie(G("ckname"), G("ckvalue"), NULL);
} %>
<% /* user click query command */
if (!isblankstr(G("query"))) { %>
name: <% =G("ckname") %><br>
value: <% =getcookie(G("ckname")) %><br>
<% } %>
<form method=post action=<% =thisCgiPrefix() %>>
Cookie name: <input type=input name=ckname><p>
Cookie value: <input type=input name=ckvalue><p>
<input type=submit value="Set" name=set>
<input type=submit value="Query" name=query>
</form>
</body>
</html>
《解決方案》
沒用過cgic庫,習慣自己寫,幫你頂
《解決方案》
謝謝newzy的指點,我還是不明白：
2. 作用對象, 是必須是同一對象. 如
http://ip/test1 不能為 http://ip/test2 設置 cookie.
是什麼意思？我在test1設置cookie在test2,test3讀出cookie不對嗎？
[ 本帖最後由 bjiang 於 2007-3-19 13:21 編輯 ]
