Servlet and refresh the page automatically jump

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Pages regularly updated

response.addHeader("refresh","5");
//5秒后跳转

Pages regularly updated and jump

response.setHeader("refersh","3;http://www.baidu.com");
//3秒后刷新并跳转到百度


response.setHeader("refresh", "2;URL=index.html");
//跳转项目内其他页面