如何改动
代码，才能让服务器发送的数据完整，能让浏览器图片完全显示，以下分别是html文件和C
代码。
<!DOCTYPE HTML PUBLIC "
-//W
3C
//DTD HTML 4
.01 Transitional
//EN" "
http://www
.w
3.org/TR/html4/loose
.dtd">
<html>
<head>
<meta
http-equiv="Content
-Type" content="text/html;charset=utf
-8">
<title>About</title>
<link rel="stylesheet" type="text/css" href="css/style_mobile
.css">
<script language="javascript" type="text/javascript" src="
js/
jquery-1.9.1.min.js"></script>
<script language="javascript" type="text/javascript" src="
js/action
.js"></script>
</head>
<body>
<div id="container">
<div id="header">
<div id="logo">David Lanham</div>
<ul>
<li><a href="Index
.html">Blog</a></li>
<li><a href="Work
.html">Work</a></li>
<li><a class="active" href="About
.html">About</a></li>
<li><a href="Contact
.html">Contact</a></li>
</ul>
</div>
<div id="about_content">
<p class="content_text">About</p>
<div id="about_slider">
<ul>
<li><img src="images/About_baby
.png" /></li>
<li><img src="img/6
.jpg" /></li>
<li><img src="img/5
.jpg" /></li>
<li><img src="img/4
.jpg" /></li>
<li><img src="img/
3.jpg" /></li>
<li><img src="img/2
.jpg" /></li>
<li><img src="img/
1.jpg" /></li>
<li><img src="images/About_baby
.png" /></li>
</ul>
</div>
<div id="about_text">
<p class="about_font_big">My name is David Lanham and I creat beautiful</p>
<p class="about_font_big">illustrations that capture imaginations of all</p>
<p class="about_font_big">ages
. I currently work at <font color="#f04
922">Illustration Industries</font></p>
<p class="about_font_big">and I am based in <font color="#f04
922">Washington, DC
.</font></p>
<div id="about_text_small">
<p class="about_font_small">I began my career when I was younger, and started drawing all</p>
<p class="about_font_small">kinds of glorious and wonderful creatures
. I rearely ever drew</p>
<p class="about_font_small">humans, and even tot his day I prefer drawing characters with</p>
<p class="about_font_small">interesting features that would only be
found in childrens books
.</p>
<p class="about_font_small">I then created my own illustration
company and began creating</p>
<p class="about_font_small">new illustrations for magazines and websites, and even did</p>
<p class="about_font_small">icons for creative
companies
.</p>
</div>
<ul>
<li><a href="#"><img src="images/About_bird
.png"></a></li>
<li><a href="#"><img src="images/About_ball
.png"></a></li>
<li><a href="#"><img src="images/About_be
.png"></a></li>
<li><a href="#"><img src="images/About_@
.png"></a></li>
<li><a href="#"><img src="images/About_message
.png"></a></li>
</ul>
</div>
</div>
<div id="footer">
<div id="fttext">
<p>All illustrations on this site are from the very talented</p>
<p> illustrator and designer David Lanham
. Make sure to</p>
<p>check out his work at <a href="#">DavidLanham
.com.</a></p>
</div>
<div id="ftimage">
<a href="#"><img src="images/footer_baby
.png"></a>
</div>
<div id="ft_text">
<p class="ftname">David Lanham</p>
<p class="ftabout">I create beatufiul illustrations and designs
.<a href="#">About me
.</a></p>
</div>
<ul>
<li><a href="#"><img src="images/footer_bird
.png"></a></li>
<li><a href="#"><img src="images/footer_ball
.png"></a></li>
<li><a href="#"><img src="images/footer_be
.png"></a></li>
<li><a href="#"><img src="images/footer_@
.png"></a></li>
<li><a href="#"><img src="images/footer_message
.png"></a></li>
</ul>
</div>
</div>
</body>
</html>
#include "
http_parser
.h"
#include <string
.h>
#include <stdlib
.h>
#include <stdio
.h>
#include "
../
common/debug
.h"
int parse_
http_request(const char *data, size_t length,
HttpRequest *request) {
me
mset(request, 0, sizeof(
HttpRequest));
// 解析请求行
const char *end = data + length;
const char *start = data;
const char *line_end = strstr(start, "\r\n");
if (!line_end || line_end >= end) {
LOG_ERROR("Invalid request line");
return
-1;
}
// 解析方法
if (strncmp(start, "
GET ", 4) == 0) {
request
->method =
GET;
start += 4;
} else if (strncmp(start, "POST ", 5) == 0) {
request
->method = POST;
start += 5;
} else {
request
->method = UNSUPPORTED;
LOG_WARN("Unsupported
HTTP method");
return
-1;
}
// 解析路径
const char *path_end = strchr(start, &#
39; &#
39;);
if (!path_end || path_end >= line_end) {
LOG_ERROR("Invalid request path");
return
-1;
}
size_t path_len = path_end
- start;
request
->path = malloc(path_len +
1);
if (!request
->path) {
LOG_ERROR("Memory allocation failed");
return
-1;
}
memcpy(request
->path, start, path_len);
request
->path[path_len] = &#
39;\0&#
39;;
// 解析查询字符串
char *query_start = strchr(request
->path, &#
39;?&#
39;);
if (query_start) {
*query_start = &#
39;\0&#
39;;
request
->query_string = query_start +
1;
}
// 解析
HTTP版本
start = path_end +
1;
if (strncmp(start, "
HTTP/
1.1", 8) == 0) {
request
->
http_version_major =
1;
request
->
http_version_
minor =
1;
} else if (strncmp(start, "
HTTP/
1.0", 8) == 0) {
request
->
http_version_major =
1;
request
->
http_version_
minor = 0;
} else {
LOG_WARN("Unsupported
HTTP version
: %
.*s", (int)(line_end
- start), start);
return
-1;
}
// 解析头部
start = line_end + 2;
// 跳过\r\n
while (start < end) {
line_end = strstr(start, "\r\n");
if (!line_end || line_end >= end) break;
// 空行表示头部结束
if (line_end == start) {
start = line_end + 2;
break;
}
// 解析单个头部
const char *colon = strchr(start, &#
39;
:&#
39;);
if (!colon || colon >= line_end) {
LOG_WARN("Invalid header
: %
.*s", (int)(line_end
- start), start);
start = line_end + 2;
continue;
}
// 分配头部
if (request
->header_count >= MAX_HEADERS) {
LOG_WARN("Too many headers, ignoring the rest");
break;
}
HttpHeader *header = &request
->headers[request
->header_count++];
size_t name_len = colon
- start;
header
->name = malloc(name_len +
1);
if (!header
->name) {
LOG_ERROR("Memory allocation failed");
return
-1;
}
memcpy(header
->name, start, name_len);
header
->name[name_len] = &#
39;\0&#
39;;
// 跳过冒号和空格
const char *value_start = colon +
1;
while (*value_start == &#
39; &#
39; && value_start < line_end) {
value_start++;
}
size_t value_len = line_end
- value_start;
header
->value = malloc(value_len +
1);
if (!header
->value) {
LOG_ERROR("Memory allocation failed");
free(header
->name);
return
-1;
}
memcpy(header
->value, value_start, value_len);
header
->value[value_len] = &#
39;\0&#
39;;
// 特殊处理Content
-Length
if (strcasecmp(header
->name, "Content
-Length") == 0) {
request
->body_length = strtoul(header
->value, NULL,
10);
}
start = line_end + 2;
}
// 解析正文 (POST请求)
if (request
->method == POST && request
->body_length > 0 &&
(end
- start) >= request
->body_length) {
request
->body = malloc(request
->body_length +
1);
if (!request
->body) {
LOG_ERROR("Memory allocation failed");
return
-1;
}
memcpy(request
->body, start, request
->body_length);
request
->body[request
->body_length] = &#
39;\0&#
39;;
}
return 0;
}
void free_
http_request(
HttpRequest *request) {
if (request
->path) free(request
->path);
for (size_t i = 0; i < request
->header_count; i++) {
free(request
->headers[i]
.name);
free(request
->headers[i]
.value);
}
if (request
->body) free(request
->body);
me
mset(request, 0, sizeof(
HttpRequest));
}
void build_
http_response(const
HttpResponse *response, char *buffer, size_t *length) {
char *ptr = buffer;
size_t remaining = *length;
// 状态行
int written = snprintf(ptr, remaining, "
HTTP/
1.1 %d %s\r\n",
response
->status_code, response
->status_text);
ptr += written;
remaining
-= written;
// 头部
for (size_t i = 0; i < response
->header_count; i++) {
written = snprintf(ptr, remaining, "%s
: %s\r\n",
response
->headers[i]
.name, response
->headers[i]
.value);
ptr += written;
remaining
-= written;
}
// 内容长度
written = snprintf(ptr, remaining, "Content
-Length
: %zu\r\n", response
->body_length);
ptr += written;
remaining
-= written;
// 结束头部
written = snprintf(ptr, remaining, "Connection
: close\r\n\r\n");
ptr += written;
remaining
-= written;
// 正文
if (response
->body_length > 0 && remaining >= response
->body_length) {
memcpy(ptr, response
->body, response
->body_length);
ptr += response
->body_length;
remaining
-= response
->body_length;
}
*length = ptr
- buffer;
}
void build_200_response(
HttpResponse *response, const char *content, const char *content_type) {
response
->status_code = 200;
response
->status_text = "OK";
response
->body = content;
// 设置Content
-Type
response
->header_count =
1;
response
->headers[0]
.name = "Content
-Type";
response
->headers[0]
.value = (char*)content_type;
}
void build_
404_response(
HttpResponse *response) {
const char *content =
"<html>"
"<head><title>
404 Not Found</title></head>"
"<body><h
1>
404 Not Found test</h
1></body>"
"</html>";
response
->status_code =
404;
response
->status_text = "
Not Found";
response
->body = content;
response
->body_length = strlen(content);
response
->header_count =
1;
response
->headers[0]
.name = "Content
-Type";
response
->headers[0]
.value = "text/html";
}
void build_400_response(
HttpResponse *response) {
const char *content =
"<html>"
"<head><title>400 Failed to parse</title></head>"
"<body><h
1>400 Failed to parse</h
1></body>"
"</html>";
response
->status_code = 400;
response
->status_text = "Failed to parse";
response
->body = content;
response
->body_length = strlen(content);
response
->header_count =
1;
response
->headers[0]
.name = "Content
-Type";
response
->headers[0]
.value = "text/html";
}
void build_500_response(
HttpResponse *response) {
const char *content =
"<html>"
"<head><title>500 Internal Server Error</title></head>"
"<body><h
1>500 Internal Server Error</h
1></body>"
"</html>";
response
->status_code = 500;
response
->status_text = "Internal Server Error";
response
->body = content;
response
->body_length = strlen(content);
response
->header_count =
1;
response
->headers[0]
.name = "Content
-Type";
response
->headers[0]
.value = "text/html";
}
// 添加40
3和4
13错误处理
void build_40
3_response(
HttpResponse *response) {
const char *content =
"<html><head><title>40
3 Forbidden</title></head>"
"<body><h
1>40
3 Forbidden</h
1></body></html>";
response
->status_code = 40
3;
response
->status_text = "Forbidden";
response
->body = content;
response
->body_length = strlen(content);
response
->owns_body = 0;
response
->header_count =
1;
response
->headers[0]
.name = "Content
-Type";
response
->headers[0]
.value = "text/html";
}
void build_4
13_response(
HttpResponse *response) {
const char *content =
"<html><head><title>4
13 Payload Too Large</title></head>"
"<body><h
1>File too large</h
1></body></html>";
response
->status_code = 4
13;
response
->status_text = "Payload Too Large";
response
->body = content;
response
->body_length = strlen(content);
response
->owns_body = 0;
response
->header_count =
1;
response
->headers[0]
.name = "Content
-Type";
response
->headers[0]
.value = "text/html";
}
// 添加MIME类型映射函数
const char*
get_content_type(const char* path) {
const char *ext = strrchr(path, &#
39;
.&#
39;);
if (!ext) return "application/octet
-stream";
if (strcmp(ext, "
.html") == 0 || strcmp(ext, "
.htm") == 0) return "text/html";
if (strcmp(ext, "
.css") == 0) return "text/css";
if (strcmp(ext, "
.js") == 0) return "application/javascript";
if (strcmp(ext, "
.jpg") == 0 || strcmp(ext, "
.jpeg") == 0) return "image/jpeg";
if (strcmp(ext, "
.png") == 0) return "image/png";
if (strcmp(ext, "
.gif") == 0) return "image/gif";
if (strcmp(ext, "
.pdf") == 0) return "application/pdf";
if (strcmp(ext, "
.txt") == 0) return "text/plain";
return "application/octet
-stream";
}
本文介绍了解决PHP项目中因缺少jQuery-1.9.1.min.js文件导致的404错误的方法。通过下载并正确导入jQuery库文件，可以有效避免此类问题的发生。
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