Servlet實現我的第一個程式HelloWorld！
阿新 • • 發佈：2018-12-31
用myeclipse建立web專案，編寫servlet。部署後，啟動Tomcat伺服器。
import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class HelloServlet extends HttpServlet {//繼承HTTPServlet public void doGet(HttpServletRequest request, HttpServletResponse response)//重新定義doGet throws ServletException, IOException { response.setContentType("text/html;charset=utf-8");//設定響應內容型別器 PrintWriter out = response.getWriter();//取得響應輸出物件 String text = request.getParameter("text");//取得請求引數 out.println("<HTML>"); out.println(" <HEAD><TITLE>Hello Servlet</TITLE></HEAD>"); out.println(" <BODY>"); out.println("<h1>" + text + "!</h1>"); out.println(" </BODY>"); out.println("</HTML>"); out.close(); } }
URL帶上請求引數。
http://localhost:8080/FirstServlet/servlet/HelloServlet?text=HelloWorld
執行結果：