［java web 入门］（一）MyEclipse & HelloWorld 记录

第一部，下载安装MyEclipse for mac.

http://downloads.myeclipseide.com/downloads/products/eworkbench/2014/installers/myeclipse-spring-2014-GA-offline-installer-macosx.dmg
http://downloads.myeclipseide.com/downloads/products/eworkbench/2014/installers/myeclipse-pro-2014-GA-offline-installer-macosx.dmg

第二部，helloWorld

1,新建项目

［java web 入门］（一）MyEclipse & HelloWorld 记录

2, 新建MyServlet类，继承字HttpServlet，重写doGet和doPost方法，调用process方法响应请求。

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;

@SuppressWarnings("serial")
public class MyServlet extends HttpServlet {

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		process(req,resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		process(req,resp);
	}
	
	/**
	 * @param req
	 * @param resp
	 * @throws ServletException
	 * @throws IOException
	 */
	protected void process(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		resp.setContentType("text/html");
		PrintWriter out = resp.getWriter();
		out.println("<HTML><HEAD><TITLE>My First Servlet</TITLE></HEAD>");
		out.println("<BODY>");
		out.println("<H1>Hello , Jason Hu</H1>");
		out.println("</BODY></HTML>");
	}

}

3，在web.xml中配置servlet及servlet-mapping

4,执行项目，http://192.168.1.117:8080/HelloWorld/MyServlet

5,项目代码包: 点击打开链接