Response重定向

类中代码

package com.yin;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class RedirectServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
       resp.sendRedirect("/response1_war/img");
           }

    @Override
    protected void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        super.doGet(req, resp);
    }
}

　　 web.xml中代码

    <servlet>
        <servlet-name>red</servlet-name>
        <servlet-class>com.yin.RedirectServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>red</servlet-name>
        <url-pattern>/re</url-pattern>
    </servlet-mapping>