Servlet入門
- 在tomcat中新建一個day04web應用,然後在web應用中新建一個WEB-INF/classes目錄
- 在classes目錄中新建一個FirstServlet.java
import java.io.*;
import javax.servlet.*;
public class FirstServlet extends GenericServlet{
public void service(ServletRequest req, ServletResponse res)throws ServletException,java.io.IOException{
OutputStream out = res.getOutputStream();
out.write("hello servlet!!!".getBytes());
}
}
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<servlet>
<servlet-name>FirstServlet</servlet-name>
<servlet-class>cn.itcast.FirstServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>FirstServlet</servlet-name>
<url-pattern>/FirstServlet</url-pattern>
</servlet-mapping>
</web-app>