一、参考网址
二、网页是采用文件读写方式，还是转换为数组方式?
1）其通过宏定义“WEBS_PAGE_ROM”来区分，我是在websPageReadData（）（page.c）函数源码发现的
int websPageReadData(webs_t wp, char *buf, int nBytes)
{ #ifdef WEBS_PAGE_ROM
a_assert(websValid(wp));
return websRomPageReadData(wp, buf, nBytes);
#else
a_assert(websValid(wp));
return read(wp->docfd, buf, nBytes);
#endif
}
2） 其保存网页的数组定义：websRomPageIndexType websRomPageIndex[]， 其内部有个Page成员指向网页数组数据：
/*
* Compiled Rom Page Index
*/
typedef struct {
char_t *path; /* Web page URL path */
unsigned char *page; /* Web page data */
int size; /* Size of web page in bytes */
int pos; /* Current read position */
} websRomPageIndexType;
3） websRomPageIndex[]数组初始化过程
websRomOpen()
symEnter(romTab, name, valueInteger((int) wip), 0); //填充到sym[romTab]中
4) 从数组中读出网页的过程：
websDefaultHandler 注册了写事件处理
websDefaultWriteEvent
websPageReadData
websRomPageReadData
2、输入URL时，其默认网页定义
在initwebs()函数中有UrlHandlerDefine(T("/"), NULL, 0, websHomePageHandler, 0);
其websHomePageHandler（）定义如下：
static int websHomePageHandler(webs_t wp, char_t *urlPrefix, char_t *webDir,
int arg, char_t *url, char_t *path, char_t *query)
{
/*
* If the empty or "/" URL is invoked, redirect default URLs to the home page
*/
if (*url == '\0' || gstrcmp(url, T("/")) == ) {
websRedirect(wp, T("home.asp"));
return ;
}
return ;
}
3、浏览器提交的数据处理流程
initWebs() (main.c)
websOpenServer(port, retries);
websOpenListen(port, retries);
socketOpenConnection(NULL, port, websAccept, 0); 中的websAccept
int websAccept(int sid, char *ipaddr, int port, int listenSid)
socketCreateHandler(sid, SOCKET_READABLE, websSocketEvent, (int) wp);
static void websSocketEvent(int sid, int mask, int iwp)
void websReadEvent(webs_t wp)
websUrlHandlerRequest(wp)
sp = &websUrlHandler[i]; 其数组内容由websUrlHandlerDefine（）函数填充
if ((*sp->handler)(wp, sp->urlPrefix, sp->webDir, sp->arg,
wp->url, wp->path, wp->query))
int websFormHandler(webs_t wp, char_t *urlPrefix, char_t *webDir, int arg,
char_t *url, char_t *path, char_t *query)
sp = symLookup(formSymtab, formName);// formSymtab数组内容由websFormDefine()函数填充
fn = (int (*)(void *, char_t *, char_t *)) sp->content.value.integer;
(*fn)((void*) wp, formName, query)； 最后的表单处理函数，
4、对浏览器提交的数据处理，移植需要注意的两步（即最后两步）
1）先由websUrlHandlerDefine(T("/goform"), NULL, 0, websFormHandler, 0);中注册的websFormHandler()函数处理
其内部有怎么一段：fn = (int (*)(void *, char_t *, char_t *)) sp->content.value.integer;
(*fn)((void*) wp, formName, query);
int websFormHandler(webs_t wp, char_t *urlPrefix, char_t *webDir, int arg,
char_t *url, char_t *path, char_t *query)
{
printf("formhandler %s ----- %d\n", __func__, __LINE__);
sym_t *sp;
char_t formBuf[FNAMESIZE];
char_t *cp, *formName;
int (*fn)(void *sock, char_t *path, char_t *args); a_assert(websValid(wp));
a_assert(url && *url);
a_assert(path && *path == '/'); websStats.formHits++; /*
* Extract the form name
*/
gstrncpy(formBuf, path, TSZ(formBuf));
printf("path:%s\n", path);
printf("formbuf:%s\n", formBuf);
if ((formName = gstrchr(&formBuf[], '/')) == NULL) {
websError(wp, , T("Missing form name"));
return ;
}
//printf("111formname:%s\n", formName);
formName++;
//printf("222formname:%s\n", formName);
#if 1
if ((cp = gstrchr(formName, '/')) != NULL) //后续"/"之后的都失效
{
*cp = '\0';
}
#endif
//printf("333formname:%s\n", formName);
/*
* Lookup the C form function first and then try tcl (no javascript support
* yet).
*/
sp = symLookup(formSymtab, formName);
if (sp == NULL) {
websError(wp, , T("Form %s is not defined"), formName);
} else {
fn = (int (*)(void *, char_t *, char_t *)) sp->content.value.integer;
a_assert(fn);
if (fn) {
/*
* For good practice, forms must call websDone()
*/
(*fn)((void*) wp, formName, query); /*
* Remove the test to force websDone, since this prevents
* the server "push" from a form>
*/
#if 0 /* push */
if (websValid(wp)) {
websError(wp, , T("Form didn't call websDone"));
}
#endif /* push */
}
}
return ;
}
2) 然后根据URL中判断是哪个表单，然后调用相应的在initWebs()函数中用websFormDefine（）注册的回调函数：
如：websFormDefine(T("gpio_p24"), on_gp24_set); 则表示URL中末尾是gpio_p24，则调用on_gp24_set（）函数
int websFormDefine(char_t *name, void (*fn)(webs_t wp, char_t *path,
char_t *query))
{
//1 printf("formdefine %s ----- %d\n", __func__, __LINE__);
a_assert(name && *name);
a_assert(fn); if (fn == NULL) {
return -;
} symEnter(formSymtab, name, valueInteger((long) fn), );
return ;
}
3