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package 简单servlet;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet{
private String greating;
public void init() throws ServletException{
greating=getInitParameter("greating");
}
public void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
PrintWriter out=response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>"+greating+"</title>");
out.println("</head>");
out.println("<body bgcolor=#cc99dd>");
out.println("<h1>"+greating+"</h1>");
out.println("</body>");
out.println("</html>");
out.close();
}
public void destroy(){}
}
<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"
version="2.5">
<!-- 设置Servlet -->
<servlet>
<servlet-name>login</servlet-name>
<servlet-class>简单servlet.HelloWorld</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>login</servlet-name>
<url-pattern>/hello.do</url-pattern>
</servlet-mapping>
</web-app>