用eclipse创建servlet小程序

测试servlet例子

File->New->New Project(java Tomcat Project)

输入 test next 再输入 test 最后finish

右键test工程,new class 包名test,类名test

超类的名称写上javax.servlet.http.HttpServlet

打开test.java ,右键test.java文件内容 source->Override/Implement Methods

选上 doGet doPost

去掉基类调用super.doGet(req, resp);

输入

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     PrintWriter out = new PrintWriter (resp.getOutputStream()); 
    out.println("<html>"); 
    out.println("<head><title>Servlet1</title></head>"); 
    out.println("<body>hello world!"); 
    out.println("</body></html>"); 
    out.close(); 

右击PrintWriter,source->Organize Import

然后右击test工程,选择Properties->java build path->order and export 全选然确定

创建该工程的部署文件web.xml 放到test/Web-INF目录下

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    <?xml version="1.0" encoding="ISO-8859-1"?>  
    <web-app>  

        <servlet> 
            <servlet-name>test</servlet-name>  
            <servlet-class>test.test</servlet-class>  
        </servlet>  

        <servlet-mapping>  
            <servlet-name>test</servlet-name>  
            <url-pattern>/test/*</url-pattern>  
        </servlet-mapping>  
        <session-config>  
        <session-timeout>30</session-timeout>  
        </session-config>  
    </web-app>  

启动tomcat

访问 http://localhost:8080/test/test,这里注意tomcat端口问题

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