// POST 方法
virtual bool doPost(HttpServletRequest& req, HttpServletResponse& res)
{
// 如果 session 项不存在，则设置
#if 0
const char* sid = req.getSession().getAttribute("sid");
if (*sid == 0)
req.getSession().setAttribute("sid", "xxxxxx");
#endif
// 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");
}
// 获得 HTTP 请求的数据类型，正常的参数类型，即 name&value 方式
// 还是 MIME 数据类型，还是数据流类型
http_request_t request_type = req.getRequestType();
if (request_type == HTTP_REQUEST_NORMAL)
return doParams(req, res);
else if (request_type == HTTP_REQUEST_MULTIPART_FORM)
return doUpload(req, res);
assert(request_type == HTTP_REQUEST_OCTET_STREAM);
return doOctetStream(req, res);
}
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;
}
bool doResponse(HttpServletRequest& req, HttpServletResponse& res)
{
// 获得浏览器传来的 cookie 值
const char* cookie1 = req.getCookieValue("name1");
const char* cookie2 = req.getCookieValue("name2");
// 获得 sid session 值
const char* sid = req.getSession().getAttribute("sid");
// 创建 xml 格式的数据体
xml body;
body.get_root().add_child("root", true)
.add_child("content_type", true)
.add_attr("type", (int) req.getRequestType())
.get_parent()
.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")
.get_parent()
.add_child("param", true)
.add_attr("name3", param3_ ? param3_ : "null")
.get_parent()
.get_parent()
.add_child("files", true)
.add_child("file", true)
.add_attr("filename", file1_ ? file1_ : "null")
.get_parent()
.add_child("file", true)
.add_attr("filename", file2_ ? file2_ : "null")
.get_parent()
.add_child("file", true)
.add_attr("filename", file3_ ? file3_ : "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 ProductDetails::doGet(HttpServletRequest& request, HttpServletResponse &response) {
try{
request.getSession(true); //start session
show_product(request, response);
}catch(const exception& ex) {
request.setAttribute<string>("error",ex.what());
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>");
}
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");
}
void doGet(HttpServletRequest& request, HttpServletResponse &response) {
response.setContentType("text/html");
ostream& out = response.getOutputStream();
out << "<html><body>" << endl;
HttpSession* session = request.getSession();
if(session->hasAttribute("lastVisit")) {
time_t lastVisit = session->getAttribute<time_t>("lastVisit");
out << "Witaj ponownie. Pierwszy raz odwiedziles nas: <br>"
<< ctime(&lastVisit) << endl;
}else{
out << "Witaj po raz pierszy!" << endl;
time_t lastVisit = time(NULL);
session->setAttribute("lastVisit", lastVisit);
}
out << "</body></html>" << endl;
}
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>");
}
void doGet(HttpServletRequest& req, HttpServletResponse &res) {
//dbg_stop();
res.setContentType("text/html");
ostream& out = res.getOutputStream();
out << "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\""
"\"http://www.w3.org/TR/html4/loose.dtd\">" << endl;
out << "<html><head><title>test</title></head><body>" << endl;
out << "PID: " << getpid() << "<hr>" << endl;
auto_ptr< vector<string> > names = req.getHeaderNames();
out << "<div style='border: solid black'>" << endl;
out << "Headers:<ul>" << endl;
for(unsigned i=0; i< names->size();++i) {
out << "<li>" << (*names)[i] << "<ul>";
auto_ptr< vector<string> > values = req.getHeaders((*names)[i]);
for(unsigned j=0; j < values->size();++j) {
out << "<li>" << (*values)[j] << "</li>";
}
out << "</ul>\n";
}
out << "</ul></div><br>\n";
out << "<div style='border: solid black'>" << endl;
out << "Cookies:<ul>" << endl;
auto_ptr< vector<Cookie> > cookies = req.getCookies();
for(unsigned i=0;i<cookies->size();++i)
out << "<li><u>" << (*cookies)[i].getName() << "</u> "
<< (*cookies)[i].getValue() << "</li>\n" << endl;
out << "</ul></div><br>\n";
out << "<div style='border: solid black'>" << endl;
out << "Parameters:<ul>" << endl;
names = req.getParameterNames();
for(unsigned i=0; i< names->size();++i) {
out << "<li>" << (*names)[i] << "<ul>";
auto_ptr< vector<string> > values = req.getParameterValues((*names)[i]);
for(unsigned j=0; j < values->size();++j) {
out << "<li>" << (*values)[j] << "</li>\n";
// Cookie c(names[i], req.getParameter(names[i]));
// res.addCookie(c);
}
out << "</ul>\n";
}
out << "</ul></div><br>";
HttpSession* session = req.getSession();
if(session){
int cnt;
if(session->isNew()){
cnt = 1;
session->setAttribute("cnt",cnt);
}else{
cnt = session->getAttribute<int>("cnt");
cnt++;
session->setAttribute("cnt",cnt);
}
out << "Your counter: " << cnt << endl;
out << "<br>ID: " << session->getId() << endl;
}else
out << "<h4>No session</h4>";
out << "</body></html>" << endl;
}