1、 Servlet 类的写法如下:
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;public class TestServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
// TODO Auto-generated method stub
this.doPost(req, resp);
} @Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
// TODO Auto-generated method stub
PrintWriter pw =resp.getWriter();
pw.println("<html>");
pw.println("<head>");
pw.println("<title>");
pw.println("this First Servlet ");
pw.println("</title>");
pw.println("</head>");
pw.println("<body>");
pw.println("<h1>welcome here !</h1>");
pw.println("</body>");
pw.println("</html>");
pw.close();
}}
2、Servlet的配置文件web.xml的写法
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>jack1</servlet-name>
<servlet-class>org.Servlert.com.TestServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>jack1</servlet-name>
<url-pattern>/test1</url-pattern>
</servlet-mapping>
</web-app>
3、总结、
这个程序没什么要多讲的,就是通过配置文件找到Servlet类。在IE输入:http://localhost:8080/项目名字/test1
就可以了。
4、下面是一个老兄总结的 Servlet中web.xml的配置