如何利用QTcreator 开发Wt（C++ web toolkit）程序
Wt是什么？ 我不想做过的解释，如果感兴趣的朋友可以去http://www.webtoolkit.eu/wt看一看，wt是将来嵌入式开发的一种必然趋势，因为wt现在刚刚起步，还没有相对成熟的，设置连自己的一套开发jdk还没有出来，这给开发wt的人员带来了相当大的痛苦，本人也是配置wt的开发环境花了四天的时间，最后放弃了wt官方的资料（实在不敢恭维wt的官方资料），利用qtcreator来开发wt。
从一个简单的helloword开始吧
pro文件
#-------------------------------------------------
#
# Project created by QtCreator 2010-11-18T12:10:20
#
#-------------------------------------------------
QT -= core
QT -= gui
TARGET = hello.wt
LIBS += -L/usr/local/lib -lwt -lwthttp
CONFIG += console
CONFIG -= app_bundle
TEMPLATE = app
SOURCES += main.cpp
main.cpp
#include <Wt/WApplication>
#include <Wt/WBreak>
#include <Wt/WContainerWidget>
#include <Wt/WLineEdit>
#include <Wt/WPushButton>
#include <Wt/WText>
#include <boost/version.hpp>
using namespace Wt;
/*
* A simple hello world application class which demonstrates how to react
* to events, read input, and give feed-back.
*/
class HelloApplication : public WApplication
{
public:
HelloApplication(const WEnvironment& env);
private:
WLineEdit *nameEdit_;
WText *greeting_;
void greet();
};
/*
* The env argument contains information about the new session, and
* the initial request. It must be passed to the WApplication
* constructor so it is typically also an argument for your custom
* application constructor.
*/
HelloApplication::HelloApplication(const WEnvironment& env)
: WApplication(env)
{
setTitle("Hello"); // application title
root()->addWidget(new WText("Your name, please ? ")); // show some text
nameEdit_ = new WLineEdit(root()); // allow text input
nameEdit_->setFocus(); // give focus
WPushButton *b = new WPushButton("Greet me.", root()); // create a button
b->setMargin(5, Left); // add 5 pixels margin
root()->addWidget(new WBreak()); // insert a line break
greeting_ = new WText(root()); // empty text
/*
* Connect signals with slots
*
* - simple Wt-way
*/
b->clicked().connect(this, &HelloApplication::greet);
/*
* - using an arbitrary function object (binding values with boost::bind())
*/
nameEdit_->enterPressed().connect
(boost::bind(&HelloApplication::greet, this));
}
void HelloApplication::greet()
{
/*
* Update the text, using text input into the nameEdit_ field.
*/
greeting_->setText("Hello there, " + nameEdit_->text());
}
WApplication *createApplication(const WEnvironment& env)
{
/*
* You could read information from the environment to decide whether
* the user has permission to start a new application
*/
return new HelloApplication(env);
}
int main(int argc, char **argv)
{
/*
* Your main method may set up some shared resources, but should then
* start the server application (FastCGI or httpd) that starts listening
* for requests, and handles all of the application life cycles.
*
* The last argument to WRun specifies the function that will instantiate
* new application objects. That function is executed when a new user surfs
* to the Wt application, and after the library has negotiated browser
* support. The function should return a newly instantiated application
* object.
*/
return WRun(argc, argv, &createApplication);
}
这就是helloword 的工程文件
现在编译肯定是无法运行的
然后在运行环境中添加wt的共享库地址 好了 现在打开浏览器 输入0.0.0.0:8080 点击编译运行
成功 ，这样开发起来效率不知道高出n倍吧，诶，不知道wt 什么时候才能在国内普及呢