实验二、提交按钮
我们在上一个实验的页面中增加两个按钮，一个为提交按钮，一个为重置按钮，用DW画在页面上，部分代码如下：
<body>
<p>Hello To My CGIC Test! </p>
<form id="form1" name="form1" method="post" action="/cgi-bin/mycgictest.cgi">
<p>
<label for="user_name">Your Name： </label>
<input type="text" name="user_name" id="user_name" />
</p>
<p>
<label for="name_submit"></label>
<input type="submit" name="name_submit" id="name_submit" value="提交" />
<label for="name_abord"></label>
<input type="reset" name="name_abord" id="name_abord" value="重置" />
</p>
</form>
</body>
修改mycgictest.c文件：
#include "cgic.h"
#define USER_NAME_MAX_BYTE 51
int hand_user_name(char *formname,char *username,int name_maxlength);
//处理用户名的函数
int cgiMain(){
char user_name_result[USER_NAME_MAX_BYTE-1];
int hand_result=-3;
cgiHeaderContentType("text/html");
fprintf(cgiOut,"<html><head>\n");
fprintf(cgiOut,"<title>my cgic test</title>\n");
fprintf(cgiOut,"</head>\n");
fprintf(cgiOut,"<body>\n");
//HTML BODY
if(cgiFormSubmitClicked("name_submit")==cgiFormSuccess){
hand_result=hand_user_name("user_name",user_name_result,USER_NAME_MAX_BYTE);
}
switch(hand_result){
case -1:
fprintf(cgiOut,"OH! You have a mars name,it is too long!\n回火星去吧");
break;
case -2:
fprintf(cgiOut,"OH! You have not input you name!");
break;
case 0:
fprintf(cgiOut,"Whelcom ");
fprintf(cgiOut,user_name_result);
break;
default:
fprintf(cgiOut,"Do you have a name?");
break;
}
fprintf(cgiOut,"</body></html>\n");
return 0;
}
int hand_user_name(char *formname,char *username,int name_maxlength){
int fetch_result=cgiFormStringNoNewlines(formname,username,name_maxlength);
if(fetch_result==cgiFormTruncated){
return -1;
}else if(fetch_result==cgiFormEmpty){
return -2;
}else if(fetch_result==cgiFormSuccess){
return 0;
}
return -3;
}
在这个实验中我们主要使用了 cgiFormSubmitClicked() 函数来检查用户所点击的提交按钮，并更加提交按钮的不同来做不同的处理