HttpServletResponse實現網頁定時重新整理並跳轉(三)
阿新 • • 發佈:2019-01-27
(一)response呼叫setHeader()方法實現實現網頁刷屏並跳轉
package com.haha;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Enumeration;
import java.util.Properties;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet .ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/TestServlet888")
public class TestServlet888 extends HttpServlet {
private static final long serialVersionUID = 1 L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.設定10秒後跳轉到百度頁面
response.setHeader("Refresh","3;URL=http://www.baidu.com");
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
----------
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>ServletDemo</display-name>
<servlet>
<servlet-name>555</servlet-name>
<servlet-class>com.haha.TestServlet888</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>555</servlet-name>
<url-pattern>/asds</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
(二)response實現自動重新整理頁面
在setHeader()方法中設定時間,實現頁面重新整理功能。
package com.haha;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Enumeration;
import java.util.Properties;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/TestServlet888")
public class TestServlet888 extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//1.設定10秒後跳轉到百度頁面
response.setHeader("Refresh","10");
response.getWriter().println(new Date());
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}
}
----------
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>ServletDemo</display-name>
<servlet>
<servlet-name>555</servlet-name>
<servlet-class>com.haha.TestServlet888</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>555</servlet-name>
<url-pattern>/wwwwwwwwwww</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>