• 关于 dwr html 的搜索结果

问题

DWR和jQuery $符号冲突的问题

a123456678 2019-12-01 20:21:13 907 浏览量 回答数 1

问题

DWR调用带参数的java方法调试不通

蛮大人123 2019-12-01 20:27:19 1063 浏览量 回答数 1

问题

spring整合dwr上传文件报错 求解?报错

爱吃鱼的程序员 2020-06-22 21:06:32 0 浏览量 回答数 1

中小企业与商标那些事

企业品牌保护从商标开始,如何挑选一家靠谱的渠道注册商标,解读品牌权益维护的重要节点。

问题

nginx+tomcat 数字无法提交的问题

落地花开啦 2019-12-01 19:25:38 1101 浏览量 回答数 1

回答

http协议本身就是请求-响应, 不可能反向。所谓的服务器push其实核心依然是依靠浏览器主动发起请求,有两种方式,一种是js轮询请求,一种是长连接。 长连接指发送请求后,服务器不是立即响应而是等到有推送数据时在响应,如果中间超时,浏览器还要再发送请求过去。 ######回复 @Anger_Coder : 长连接是必须有线程的,否则无法同时处理多个长连接请求。发起方一定是用户端!不太明白你问的是什么意思?######没错,那可以理解为http虽然是tcp socket,但是短连接,无状态信息是吧,而且js轮询请求 是做在client端的;那么有没有可能,服务器端做无差别的消息发送,client端 做校验,那么无论动态模板还是静态页,都是没有常驻内存的,也就是类似于php那种脚本语言,没有线程、进程;那么长连接的建立 是当客户端发起连接请求开始的;那么对用户状态 如何 监控呢?######js定时执行 ######你好,用过js定时 用的是setInterval,但这个的前提是 客户端打开了浏览器,并且浏览器能执行js代码,发起者 还是客户端######可行的,反向ajax就是这么做的,只不过会使服务器的压力增大######回复 @Anger_Coder : 我也只是知道有这个东西,具体也没用过,哈哈######谢谢,我先了解下反向Ajax,不懂的话 在请教你######反向Ajax?即服务器Push。###### 这个就像osc的动弹嘛。osc用的是setTimeout来做的吧 dwr也可以,都可以看看 ######这叫服务器推送,可以百度一下: HTML5 Server-Sent Events和HTML5 WebSockets,不过这要求使用支持HTML5的浏览器,IE8及以下只能用客户端拉取了,就是长连接Long-polling。######好的,谢谢,我会了解相关的东东滴:)######XMPP?######可参考Html5的WebSocket技术######这个可以做,在服务器端和客户端之间保持一个连接,然后服务器端有跟新内容就像客户端写入,没有跟新的内容也不关闭连接。但是这样非常消耗性能,如此的话就只能采用折中的方法,每个连接保持一段时间,过了这段时间关闭,有新的请求过来的时候重新创建一个连接,如此循环######恩,了解,我先实现一个demo..感谢######用blazds向前段的swf文件推送数据,前端的swf文件你设置成不可见就可以了,然后将获取到的数据再传送给js调用,这样就不用考虑长链接或者websocket之类不同浏览器的特性了######swf在这个项目中 不适用了T_T

kun坤 2020-05-29 12:11:27 0 浏览量 回答数 0

回答

Re钉钉微应用如何打开本地app (Android) 经测试,免登认证已成功,执行 dd.device.launcher.checkInstalledApps 失败报not authorized ------------------------- 回 2楼识器的帖子 你好,我参考了例子,我用调试工具获取的signature 已自己生成的对比,是一致的,但是就是在执行 dd.device.launcher.checkInstalledApps报未授权not authorized    errCode:7 ------------------------- 回 4楼识器的帖子 按你所说,我把dd 去掉了,还是不可以 ------------------------- Re钉钉微应用如何打开本地app (Android) 为什么我先访问action 签名后回到页面会认证说权限校验失败   @RequestMapping(value="/dd/openCoreMail.action")         public String openCoreMail(HttpServletRequest request,ModelMap model){                 String url=request.getRequestURL().toString();                 String querString=request.getQueryString();                 if(!StringUtils.isEmpty(querString)&&(!querString.equals("null"))){                         try {                                 querString=URLEncoder.encode(querString, "UTF-8");                         } catch (UnsupportedEncodingException e) {                                 e.printStackTrace();                         }                 }else{                         querString=null;                 }                 String result=AuthHelper.getConfig(url,querString);                         JSONObject  jobj=JSONObject.fromObject(result);                 System.out.println(result);                 Map map =new HashMap();                 map.put("SIGNATURE", jobj.getString("signature"));                 map.put("NONCESTR", jobj.getString("nonceStr"));                 map.put("TIMESTAMP", jobj.getString("timeStamp"));                 map.put("CORPID", Env.CORP_ID);                 map.put("APPID", null);                 model.addAttribute("ROOT",map);                 return "dingTalk/openCoreMail"; } 下面是页面 <%@ page language="java" contentType="text/html; charset=UTF-8"         pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ taglib uri="http://com/hbglobal/taglib/myplug" prefix="Ding"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>openCoreMail</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body>         <script type="text/javascript"                 src="${pageContext.request.contextPath}/dwr/engine.js"></script>         <script type="text/javascript"                 src="${pageContext.request.contextPath}/dwr/util.js"></script>         <script type="text/javascript"                 src="${pageContext.request.contextPath}/dwr/interface/MobileMeetingAction.js"></script>         <script src='${pageContext.request.contextPath}/js/jquery-1.11.3.js'></script>         <script                 src='${pageContext.request.contextPath}/js/jquery-migrate-1.2.1.min.js'></script>         <script type="text/javascript"                 src="${pageContext.request.contextPath}/js/dingtalk.js"></script>         <script type="text/javascript">                         dd.config({                                 agentId : '${ROOT.APPID}',                                 corpId : '${ROOT.CORPID}',                                 timeStamp : '${ROOT.TIMESTAMP}',                                 nonceStr : '${ROOT.NONCESTR}',                                 signature : '${ROOT.SIGNATURE}',                                 jsApiList : [ 'device.notification.alert',                                                 'device.notification.confirm',                                                 'runtime.permission.requestAuthCode',                                                 'runtime.permission.requestJsApis',                                                 'device.launcher.launchApp',                                                 'device.launcher.checkInstalledApps'                                 ]                         });                 dd.error(function(err) {                                 alert("aa" + JSON.stringify(err));                         });                 function aa(data) {                         alert("call:" + data);                 }                 function openMail(data) {                         dd.device.launcher.launchApp({                                 app : 'cn.mailtech.app', //iOS:应用scheme;Android:应用包名                                 onSuccess : function(data) {                                         //alert(data);                                 },                                 onFail : function(err) {                                         alert("app:" + JSON.stringify(err));                                 }                         });                 }                 dd.ready(function(bridge) {                         dd.runtime.permission.requestAuthCode({                                 corpId : '${ROOT.CORPID}',                                 onSuccess : function(info) {                                     openMail(info);                                         //MobileMeetingAction.getDDUserByCode(info.code, openMail);                                 },                                 onFail : function(err) {                                         alert("hha" + JSON.stringify(err));                                 }                         });                 });         </script> </body> </html> 但是如果我直接不通过action  直接不把页面放在WEB_INF如下却可以,有什么解决办法没 <%@ page language="java" contentType="text/html; charset=UTF-8"         pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ page import="com.hbglobal.ding.auth.AuthHelper,           org.apache.commons.lang.StringUtils,java.net.URLEncoder,           java.io.UnsupportedEncodingException,com.hbglobal.listener.DingDingListener,           net.sf.json.JSONObject,com.hbglobal.ding.po.Env" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>openCoreMail</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> <%                 String url=request.getRequestURL().toString();                 String querString=request.getQueryString();                 System.out.println(url+":"+querString);                 if(!StringUtils.isEmpty(querString)&&(!querString.equals("null"))){                         try {                                 querString=URLEncoder.encode(querString, "UTF-8");                         } catch (UnsupportedEncodingException e) {                                 e.printStackTrace();                         }                 }else{                         querString=null;                 }                 String result=AuthHelper.getConfig(url,querString);                         JSONObject  jobj=JSONObject.fromObject(result);                 System.out.println(result);                 String SIGNATURE= jobj.getString("signature");                 String NONCESTR=jobj.getString("nonceStr");                 String TIMESTAMP= jobj.getString("timeStamp");                 String CORPID= Env.CORP_ID; %>         <a href="javaScript:openMail()">启动范文</a>         <script type="text/javascript"                 src="${pageContext.request.contextPath}/js/dingtalk.js"></script>         <script type="text/javascript"                 src="${pageContext.request.contextPath}/dwr/engine.js"></script>         <script type="text/javascript"                 src="${pageContext.request.contextPath}/dwr/util.js"></script>         <script type="text/javascript"                 src="${pageContext.request.contextPath}/dwr/interface/MobileMeetingAction.js"></script>         <script src='${pageContext.request.contextPath}/js/jquery-1.11.3.js'></script>         <script                 src='${pageContext.request.contextPath}/js/jquery-migrate-1.2.1.min.js'></script>         <script type="text/javascript">                    $(function(){                         dd.config({                                 agentId : '9868138',                                 corpId : '<%=CORPID%>',                                 timeStamp : '<%=TIMESTAMP%>',                                 nonceStr : '<%=NONCESTR%>',                                 signature : '<%=SIGNATURE%>',                                 jsApiList : [ 'device.notification.alert',                                                 'device.notification.confirm',                                                 'runtime.permission.requestAuthCode',                                                 'runtime.permission.requestJsApis',                                                 'device.launcher.launchApp',                                                 'device.launcher.checkInstalledApps'                                 ]                         });                         });                 function aa(data) {                         alert("call:" + data);                 }                 function openMail(data) {                         dd.device.launcher.launchApp({                                 apps :'cn.mailtech.app' , //iOS:应用scheme;Android:应用包名                                 onSuccess : function(data) {                                         alert(data);                                 },                                 onFail : function(err) {                                         alert("app:" + JSON.stringify(err));                                 }                         });                 }                 dd.ready(function() {                         dd.runtime.permission.requestAuthCode({                                 corpId : '<%=CORPID%>',                                 onSuccess : function(info) {                                         //MobileMeetingAction.getDDUserByCode(info.code, openMail);                                 },                                 onFail : function(err) {                                         alert("hha" + JSON.stringify(err));                                 }                         });                 });                 dd.error(function(err) {                                 alert("aa" + JSON.stringify(err));                         });         </script> </body> </html>

老李归来 2019-12-02 01:38:00 0 浏览量 回答数 0

问题

SSH面试题

琴瑟 2019-12-01 21:46:22 3489 浏览量 回答数 0
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