用Tomcat和Eclipse开发Servlet程序

作者:杭州车成汽车事务代理服务部 来源:www.guohuicar.com 发布时间:2017-09-03 12:39:30
用Tomcat和Eclipse开发Servlet程序

1、 安装eclipse
1)、 在官网上直接下载Eclipse IDE for Java EE Developers,解压即可;
2、 eclipse安装tomcat插件:
1)、 在http://www.eclipsetotale.com/tomcatPlugin.html上下载tomcatPluginV33.zip
2)、 解压到eclipse目录下的plugins目录中
3)、 重新启动eclipse
4)、 如果你在Window -> Prefences中找不到Server选择的话,说明你的eclipse版本下错了,要下载Eclipse IDE for Java EE Developers
5)、 在Server一栏中选择Runtime Environment,在右边选择Add,选择好安装路径后download。下载完成后点击finished,看到选择版本的tomcatServer已经建立
6)、 在Window -> Prefences -> Tomcat配置tomcat。Tomcat home 选择刚才下载的目录
7)、 点击start tomcat按钮,可以发现大量打印信息,专题,在浏览器中输入http://localhost:8080,出现tomcat的网页,证明已经安装好了。
3 新建Servlet测试程序
1)、 选择菜单File->New->Project... ,在新建项目向导中选择 Web->Dynamic Web Project,project name为MyFirstDynamicWebProject,一路next,最后选择生成web.xml;
2)、 new 一个class,package com.johnny.test,name为helloworld,super class 为HttpServlet;

3)、 code:


[java] package com.johnny.test;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HelloWorld extends HttpServlet implements javax.servlet.Servlet{
/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#HttpServlet()
*/
public HelloWorld() {
super();
}

/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request,
HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.getWriter().write("Hello, world 1112!");
}

/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request,
HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
}
}

package com.johnny.test;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HelloWorld extends HttpServlet implements javax.servlet.Servlet{
/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#HttpServlet()
*/
public HelloWorld() {
super();
}

/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request,
HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.getWriter().write("Hello, world 1112!");
}

/* (non-Java-doc)
* @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request,
HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
}
}
web.xml

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