Servlet 網頁重定向
當文檔移動到新的位置,我們需要向客戶端發送這個新位置時,我們需要用到網頁重定向。當然,也可能是爲了負載均衡,或者只是爲了簡單的隨機,這些情況都有可能用到網頁重定向。
1.代碼
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet(name = "redirectServlet")
public class redirectServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 設置響應內容類型
response.setContentType("text/html;charset=UTF-8");
// 要重定向的新位置
String site = new String("http://www.baidu.com");
response.setStatus(response.SC_MOVED_TEMPORARILY);
response.setHeader("Location", site);
}
}