如何利用QTcreator 開發Wt（C++ web toolkit）程式

Wt是什嗎？ 我不想做過的解釋，如果感興趣的朋友可以去http://www.webtoolkit.eu/wt看一看，wt是將來嵌入式開發的一種必然趨勢，因為wt現在剛剛起步，還沒有相對成熟的，設定連自己的一套開發jdk還沒有出來，這給開發wt的人員帶來了相當大的痛苦，本人也是配置wt的開發環境花了四天的時間，最後放棄了wt官方的資料（實在不敢恭維wt的官方資料），利用qtcreator來開發wt。

 

從一個簡單的helloword開始吧 

pro檔案

 

#-------------------------------------------------

#

# 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);}這就是helloword 的工程檔案現在編譯肯定是無法啟動並執行然後在運行環境中添加wt的共用庫地址 好了 現在開啟瀏覽器 輸入0.0.0.0:8080 點擊編譯運行 成功 ，這樣開發起來效率不知道高出n倍吧，誒，不知道wt 什麼時候才能在國內普及呢