简单的servlet开发

项目构思：开发一个简单的Servlet,直接响应用户请求，在网页中输出“这是我的第一个Servlet”

项目实施：

用eclipse创建一个名为Web的Web项目

在Web下创建一个Servlet包，和FirstServlet类

 

点击Next

点击Next

java目录下出现了Servlet包和FirstServlet类

FirstServlet.java中的内容如下

package sevlets;

import java.io.*;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class FirstServlet
 */
@WebServlet("/FirstServlet")
public class FirstServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public FirstServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doPost(request,response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		response.setContentType("text/html;charset=GBK");
		PrintWriter out=response.getWriter();
		out.println("<HTML>");
		out.println("<HEAD><TITLE>First Servlet</TITLE></HEAD>");
		out.println("<BODY>");
		out.println("这是我的第一个Servlet!");
		out.println("</BODY>");
		out.println("</HTML>");

	}

}

 

 该类在tomcat下运行结果如下

 

posted @ 2017-03-21 09:25  牛郑焜  Views(205)  Comments(0)    收藏  举报