// GET 方式或 POST 方式且满足：
// Content-Type: application/x-www-form-urlencoded
bool doParams(HttpServletRequest& req, HttpServletResponse& res)
{
param1_ = req.getParameter("name1");
param2_ = req.getParameter("name2");
param3_ = req.getParameter("name2");
return doResponse(req, res);
}
void Products::process(HttpServletRequest& request, HttpServletResponse &response) {
map<string,string> params;
params["category_id"]=request.getParameter("category_id");
params["s_keyword"]=request.getParameter("s_keyword");
params["price_from"]=request.getParameter("price_from");
params["price_to"]=request.getParameter("price_to");
const string WHERE = where_part(params) ;
string query = "SELECT * FROM store_products"
+ WHERE
+ order_part(request.getParameter("productsOrder"), request.getParameter("productsDir"))
+ limit_part(request.getParameter("productsPageSize"), request.getParameter("productsPage"));
products_t products = fetch(query);
request.setAttribute("products", products);
query = "SELECT COUNT(*) FROM store_products" + WHERE;
int ResultsFound = count(query);
request.setAttribute("ResultsFound", ResultsFound);
int pageSize = getPageSize(request.getParameter("productsPageSize"));
int pageCount = static_cast<int>( ceilf(static_cast<float>(ResultsFound)/pageSize) );
request.setAttribute("pageCount", pageCount);
int currentPage = 1;
string s_currentPage = request.getParameter("productsPage");
if(!s_currentPage.empty())
currentPage = lexical_cast<int>(s_currentPage);
request.setAttribute("currentPage", currentPage);
request.setAttribute("naviLink",make_naviLink(request));
}
void doGet(HttpServletRequest& req, HttpServletResponse &res) {
res.setContentType("text/plain");
ostream& out = res.getOutputStream();
out << "pid: " << getpid() << endl << endl;
string action = req.getParameter("action");
if(action == "list") {
servlet::loader& loader = servlet::loader::instance();
out << "Loaded servlets(" << loader.pool.size() << "):" << endl;
int cnt = 0;
char timebuf[256];
for(std::map<std::string, servlet::loader::pool_entry>::const_iterator i = loader.pool.begin();
i != loader.pool.end(); ++i)
{
apr_rfc822_date(timebuf, i->second.atime);
HttpServlet* servlet = i->second.servlet;
out << ++cnt << ": " << (servlet ? typeid(*servlet).name() : "NULL") <<
"\t(Access: " << timebuf << ", Load: ";
apr_rfc822_date(timebuf, i->second.ltime);
out << timebuf << ")" << endl;
}
}else if(action == "load") {
string path = req.getParameter("path");
servlet::loader::instance().load(path);
out << "Loaded " << path << endl;
}else {
out << "Unknown action: " << action << endl;
}
}
void ProductDetails::add_to_cart(HttpServletRequest& request, HttpServletResponse &response) {
HttpSession* session = request.getSession(false);
if(!session) throw runtime_error("no session");
typedef vector<cart_item> shopping_cart;
shopping_cart cart = session->getAttribute<shopping_cart>("cart");
cart_item item;
item.quantity = boost::lexical_cast<int>(request.getParameter("quantity"));
item.product = fetch(request.getParameter("product_id"));
if(item.quantity <= 0)
throw runtime_error("Quantity is invalid. It must be a positive number");
cart.push_back(item);
session->setAttribute("cart",cart);
response.sendRedirect("ShoppingCart.sxx");
}
virtual bool doPost(HttpServletRequest& req, HttpServletResponse& res)
{
const char* sid = req.getSession().getAttribute("sid");
if (*sid == 0)
req.getSession().setAttribute("sid", "xxxxxx");
sid = req.getSession().getAttribute("sid");
const char* cookie1 = req.getCookieValue("name1");
const char* cookie2 = req.getCookieValue("name2");
// 创建 HTTP 响应头
res.addCookie("name1", "value1");
res.addCookie("name2", "value2", ".test.com", "/", 3600 * 24);
// res.setStatus(400); // 可以设置返回的状态码
// 两种方式都可以设置字符集
if (0)
res.setContentType("text/xml; charset=gb2312");
else
{
res.setContentType("text/xml");
res.setCharacterEncoding("gb2312");
}
const char* param1 = req.getParameter("name1");
const char* param2 = req.getParameter("name2");
// 创建 xml 格式的数据体
xml body;
body.get_root().add_child("root", true)
.add_child("sessions", true)
.add_child("session", true)
.add_attr("sid", sid ? sid : "null")
.get_parent()
.get_parent()
.add_child("cookies", true)
.add_child("cookie", true)
.add_attr("name1", cookie1 ? cookie1 : "null")
.get_parent()
.add_child("cookie", true)
.add_attr("name2", cookie2 ? cookie2 : "null")
.get_parent()
.get_parent()
.add_child("params", true)
.add_child("param", true)
.add_attr("name1", param1 ? param1 : "null")
.get_parent()
.add_child("param", true)
.add_attr("name2", param2 ? param2 : "null");
string buf;
body.build_xml(buf);
// 发送 http 响应头
if (res.sendHeader() == false)
return false;
// 发送 http 响应体
if (res.getOutputStream().write(buf) == -1)
return false;
return true;
}
void FormTestServlet::doGet(HttpServletRequest& req, HttpServletResponse& resp)
{
ServletOutputStream& ostr = resp.getOutputStream();
ostr <<
"<html>\n"
"<head>\n"
"<title>POCO Form Server Sample</title>\n"
"</head>\n"
"<body>\n"
"<h1>POCO Form Server Sample</h1>\n"
"<h2>GET Form</h2>\n"
"<form method=\"GET\" action=\"/ServletTest/FormTestServlet\">\n"
"<input type=\"text\" name=\"text\" size=\"31\">\n"
"<input type=\"submit\" value=\"GET\">\n"
"</form>\n"
"<h2>POST Form</h2>\n"
"<form method=\"POST\" action=\"/ServletTest/FormTestServlet\">\n"
"<input type=\"text\" name=\"text\" size=\"31\">\n"
"<input type=\"submit\" value=\"POST\">\n"
"</form>\n";
ostr << "<h2>Request</h2><p>\n";
ostr << "Method: " << req.getMethod() << "<br>\n";
ostr << "URI: " << req.getRequestURI() << "<br>\n";
std::vector<std::string> names = req.getParameterNames();
std::vector<std::string>::iterator it = names.begin();
for(; it != names.end(); ++it)
ostr << *it << ":" << req.getParameter(*it);
ostr << "</p>";
ostr << "</body>\n";
}
void ProductDetails::show_product(HttpServletRequest& request, HttpServletResponse &response) {
string id = request.getParameter("product_id");
if(id.empty())
throw runtime_error("ProductDetails: product_id parameter not supplyed");
Product product = fetch(id);
request.setAttribute("product", product);
request.getRequestDispatcher("ProductDetailsView.csp")->forward(request,response);
}
void TestServlet::doGet(HttpServletRequest& req, HttpServletResponse& resp)
{
std::ostringstream ss("");
ss << ++_counter << ") TestServlet:" << std::endl;
std::cout << ss.str() << std::endl;
log(ss.str());
log("TestServlet: This is a hello from TestServlet\n");
ServletOutputStream& out = resp.getOutputStream();
ss.str("");
ss << "<html><body>Servlet access count: " << _counter;
out.println(ss.str());
if("" == _sessionId)
{
const HttpSession* pSession = req.getSession();
if(pSession) _sessionId = pSession->getId();
}
out.println("<br> Servlet Name:" + getServletName());
out.println("<br> Session Id:" + _sessionId);
out.println("<hr>");
std::vector<std::string> names = getInitParameterNames();
std::vector<std::string>::iterator it = names.begin();
out.println("<ul><b>Servlet Init Parameters:</b><br>");
for(; it != names.end(); ++it)
{
ss.str("");
ss << "<li><b>" << *it << "</b>: " << getInitParameter(*it) << "<br>";
out.println(ss.str());
}
out.println("</ul>");
names = req.getParameterNames();
out.println("<ul><b>Request Parameters:</b><br>");
it = names.begin();
for(; it != names.end(); ++it)
{
ss.str("");
ss << "<li><b>" << *it << "</b>:" << req.getParameter(*it) << "<br>";
out.println(ss.str());
}
out.println("</ul>");
out.println("</body></html>");
}
string Products::make_naviLink(HttpServletRequest& request) {
auto_ptr< vector<string> > names_ptr = request.getParameterNames();
vector<string>& names = *names_ptr;
string link;
for(unsigned i=0;i<names.size(); ++i) {
if(names[i] == "productsPage")
continue;
link += link.empty()?'?':'&';
link += names[i] + "=" + request.getParameter(names[i]);
}
link += (link.empty()?'?':'&') + string("productsPage=");
return ("Products.sxx"+link);
}
void DefaultTestServlet::doGet(HttpServletRequest& req, HttpServletResponse& resp)
{
std::ostringstream ss("");
ss << ++_counter << ") TestServlet:" << std::endl;
log(ss.str());
log("TestServlet: This is a log entry from DefaultTestServlet\n");
ServletOutputStream& out = resp.getOutputStream();
ss.str("");
std::string sessionId = req.getSession()->getId();
ss << "<html><body>Hello world #" << _counter
<< "<br>from servlet [" << this->getServletName()
<< "]<br>Session ID: [" << sessionId << ']';
out.println(ss.str());
std::vector<std::string> names = getInitParameterNames();
std::vector<std::string>::iterator it = names.begin();
out.println("<ul><b>Servlet Init Parameters:</b><br>");
for(; it != names.end(); ++it)
{
ss.str("");
ss << "<li><b>" << *it << "</b>: " << getInitParameter(*it) << "<br>";
out.println(ss.str());
}
out.println("</ul>");
names = req.getParameterNames();
out.println("<ul><b>Request Parameters:</b><br>");
it = names.begin();
for(; it != names.end(); ++it)
{
ss.str("");
ss << "<li><b>" << *it << "</b>:" << req.getParameter(*it) << "<br>";
out.println(ss.str());
}
out.println("</ul>");
out.println("</body></html>");
}
// POST 方式且满足：
// Content-Type: multipart/form-data; boundary=xxx
bool doUpload(HttpServletRequest& req, HttpServletResponse& res)
{
// 先获得 Content-Type 对应的 http_ctype 对象
http_mime* mime = req.getHttpMime();
if (mime == NULL)
{
logger_error("http_mime null");
return false;
}
// 获得数据体的长度
long long int len = req.getContentLength();
if (len <= 0)
{
logger_error("body empty");
return false;
}
// 获得输入流
istream& in = req.getInputStream();
char buf[8192];
int ret;
bool finish = false;
const char* filepath = "./var/mime_file";
ofstream out;
out.open_write(filepath);
// 设置原始文件存入路径
mime->set_saved_path(filepath);
size_t k;
// 读取 HTTP 客户端请求数据
while (len > 0)
{
k = (size_t) len > sizeof(buf)
? sizeof(buf) : (size_t) len;
ret = in.read(buf, k, false);
if (ret == -1)
{
logger_error("read POST data error");
return false;
}
out.write(buf, ret);
len -= ret;
// 将读得到的数据输入至解析器进行解析
if (!finish && mime->update(buf, ret) == true)
finish = true;
}
out.close();
if (len != 0 || finish == false)
logger_warn("not read all data from client");
param1_ = req.getParameter("name1");
param2_ = req.getParameter("name2");
param3_ = req.getParameter("name3");
string path;
// 遍历所有的 MIME 结点，找出其中为文件结点的部分进行转储
const std::list<http_mime_node*>& nodes = mime->get_nodes();
std::list<http_mime_node*>::const_iterator cit = nodes.begin();
for (; cit != nodes.end(); ++cit)
{
const char* name = (*cit)->get_name();
if (name == NULL)
continue;
http_mime_t mime_type = (*cit)->get_mime_type();
if (mime_type == HTTP_MIME_FILE)
{
const char* filename = (*cit)->get_filename();
if (filename == NULL)
{
logger("filename null");
continue;
}
if (strcmp(name, "file1") == 0)
file1_ = filename;
else if (strcmp(name, "file2") == 0)
file2_ = filename;
else if (strcmp(name, "file3") == 0)
file3_ = filename;
// 有的浏览器（如IE）上传文件时会带着文件路径，所以
// 需要先将路径去掉
filename = acl_safe_basename(filename);
#ifdef WIN32
path.format("var\\%s", filename);
#else
path.format("./var/%s", filename);
#endif
(void) (*cit)->save(path.c_str());
}
}
// 查找上载的某个文件并转储
const http_mime_node* node = mime->get_node("file1");
if (node && node->get_mime_type() == HTTP_MIME_FILE)
{
const char* ptr = node->get_filename();
if (ptr)
{
// 有的浏览器（如IE）上传文件时会带着文件路径，所以
// 需要先将路径去掉
ptr = acl_safe_basename(ptr);
#ifdef WIN32
path.format(".\\var\\1_%s", ptr);
#else
path.format("./var/1_%s", ptr);
#endif
(void) node->save(path.c_str());
}
}
return doResponse(req, res);
}