我們還是采用Tomcat作為web服務器,如果你對如何使用tomcat還不熟悉請參考相關資料。通常我們開發WAP應用程序的時候都是手寫wml腳本,其實我們可以借助java的Servlet/jsp技術開發WAP應用程序。通常我都是使用Lomboz插件在eclipse的環境下寫servlet/jsp文件的。先看下面的waptest.jsp文件和WapServlet.java文件
<?xml version="1.0"?> <!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml"> <% response.setContentType("text/vnd.wap.wml"); out.println("<wml>"); out.println("<card title=\"MobileDate\">"); out.println(" <p align=\"center\">"); out.println("Date and Time Service<br/>"); out.println("Date is: "+ new java.util.Date()); out.println("</p>"); out.println("</card>"); out.println("</wml>"); %>
package com.j2medev.mingjava;
import java.io.IOException; import java.io.PrintWriter;
import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;
public class WapServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/vnd.wap.wml");
PrintWriter out = response.getWriter();
out.println("<?xml version=\"1.0\"?>"); out.println("<!DOCTYPE wml PUBLIC\"-//WAPFORUM//DTD WML 1.1//EN\""); out.println("\"http://www.wapforum.org/DTD/wml_1.1.xml\">"); out.println("<wml>"); out.println("<card title=\"MobileDate\">"); out.println(" <p align=\"center\">"); out.println("Date and Time Service<br/>"); out.println("Date is: " + new java.util.Date()); out.println("</p>"); out.println("</card>"); out.println("</wml>");
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request,response); } }
這兩個文件實現的功能是一樣的,顯示服務器當前的時間。我們的web.xml的內容如下:
<?xml version="1.0" ?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd"> <web-app> <servlet> <servlet-name>WapServlet</servlet-name> <servlet-calss>com.j2medev.mingjava.WapServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>WapServlet</servlet-name> <url-pattern>/wapservlet</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list>
<error-page> <error-code>404</error-code> <location>/error.jsp</location> </error-page>
</web-app>
使用Lomboz我們可以很方便的把這個應用程序發布到tomcat的webapps目錄,通過WinWap我們可以直接通過下面兩個URL訪問到他們
http://localhost:8088/wap/wapservlet http://localhost:8088/wap/waptest.jsp
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