【异常(待解决)】org.apache.http.NoHttpResponseException: api.weixin.qq.com:443 failed to respond
一、记录下异常堆栈信息
-- ::58.246 [http-nio--exec-] ERROR weixin.popular.client.LocalHttpClient - execute error
org.apache.http.NoHttpResponseException: api.weixin.qq.com: failed to respond
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:)
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:)
at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:)
at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:)
at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:)
at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:)
at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:)
at weixin.popular.client.LocalHttpClient.execute(LocalHttpClient.java:)
at weixin.popular.client.LocalHttpClient.executeJsonResult(LocalHttpClient.java:)
at weixin.popular.api.MessageAPI.messageCustomSend(MessageAPI.java:)
at weixin.popular.api.MessageAPI.messageCustomSend(MessageAPI.java:)
at com.xinchan.xcauto.merchants.common.service.local.WechatManager.sendWechantTextMessageToOa(WechatManager.java:)
at com.xinchan.xcauto.merchants.common.service.impl.FeignServiceImpl.sendOpenIdMessage(FeignServiceImpl.java:)
at com.xinchan.xcauto.merchants.common.service.impl.FeignServiceImpl.sendCouponMassage(FeignServiceImpl.java:)
at com.xinchan.xcauto.merchants.common.service.impl.FeignServiceImpl$$FastClassBySpringCGLIB$$e3661481.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:)
at com.xinchan.xcauto.merchants.common.service.impl.FeignServiceImpl$$EnhancerBySpringCGLIB$$2747d965.sendCouponMassage(<generated>)
at com.xinchan.xcauto.merchants.common.controller.FeignController.sendCouponMassage(FeignController.java:)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:)
at java.lang.reflect.Method.invoke(Method.java:)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at com.xinchan.xcauto.core.config.filter.HttpServletRequestReplacedFilter.doFilter(HttpServletRequestReplacedFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:)
at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:)
at java.lang.Thread.run(Thread.java:)
-- ::58.247 [http-nio--exec-] ERROR c.x.xcauto.common.controller.BaseControllerAdvice - 检测到未捕捉异常:IP:172.21.0.1 invoke url:http://172.17.244.191:9850/common/sendCouponMassage/v1 Exception:public class java.lang.NullPointerException
java.lang.NullPointerException: null
at com.xinchan.xcauto.merchants.common.service.local.WechatManager.sendWechantTextMessageToOa(WechatManager.java:)
at com.xinchan.xcauto.merchants.common.service.impl.FeignServiceImpl.sendOpenIdMessage(FeignServiceImpl.java:)
at com.xinchan.xcauto.merchants.common.service.impl.FeignServiceImpl.sendCouponMassage(FeignServiceImpl.java:)
at com.xinchan.xcauto.merchants.common.service.impl.FeignServiceImpl$$FastClassBySpringCGLIB$$e3661481.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:)
at com.xinchan.xcauto.merchants.common.service.impl.FeignServiceImpl$$EnhancerBySpringCGLIB$$2747d965.sendCouponMassage(<generated>)
at com.xinchan.xcauto.merchants.common.controller.FeignController.sendCouponMassage(FeignController.java:)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:)
at java.lang.reflect.Method.invoke(Method.java:)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at com.xinchan.xcauto.core.config.filter.HttpServletRequestReplacedFilter.doFilter(HttpServletRequestReplacedFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:)
at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:)
at java.lang.Thread.run(Thread.java:)
二、原因分析
1.官网解释是
org.apache.commons.httpclient.NoHttpResponseException: In some circumstances, usually when under heavy load, the web server may be able to receive requests but unable to process them.
A lack of sufficient resources like worker threads is a good example.
This may cause the server to drop the connection to the client without giving any response.
HttpClient throws NoHttpResponseException when it encounters such a condition.
In most cases it is safe to retry a method that failed with NoHttpResponseException.
在某些情况下,通常是在高负载下,web服务器可能能够接收请求,但无法处理它们。缺乏足够的资源(比如工作线程)就是一个很好的例子。这可能导致服务器在不给出任何响应的情况下断开到客户机的连接。HttpClient在遇到这种情况时抛出NoHttpResponseException。在大多数情况下,重试使用NoHttpResponseException失败的方法是安全的。
官网给出的解决办法就是:重试调用失败的方法
2.自我验证及复现该问题到底什么情况下会发生(待定)
【异常(待解决)】org.apache.http.NoHttpResponseException: api.weixin.qq.com:443 failed to respond的更多相关文章
- getaddrinfo ENOTFOUND https://api.weixin.qq.com https://api.weixin.qq.com:443
原因:这是由于你当前的主机不能够连接到你填写的url. 解决方法: 先ping api.weixin.qq.com ping不通的话,就是外网访问的问题. 开通外网访问就可以了.
- [Jmeter并发报错解决方案]org.apache.http.NoHttpResponseException: 10.0.4.147:8000 failed to respond
背景:公司模型框架是Nginx+uwsgi+Django+nginx,一开始使用Jmeter进行高并发请求测试,发现成功率只有50%,换用postman,成功率100%,代码进行高并发一样不会报错. ...
- org.apache.http.NoHttpResponseException: XX.XX.XX.XX:80 failed to respond
解决: Finally I fix the issue and it is caused by buffer size. By default, buffer size of httpclient i ...
- 微信小程序模板发送,openid获取,以及api.weixin.qq.com不在合法域名内解决方法
主要内容在标题三,老手可直接跳到标题三. 本文主要解决个人开发者模板消息发送的问题(没有服务器,不能操作服务器的情况) 针对api.weinxin.qq.com不在以下合法域名列表内的问题提出的解决方 ...
- couldn't resolve host api.weixin.qq.com
1.代理服务器突然出现 couldn't resolve host api.weixin.qq.com 不知原因 2.重启nginx无效-----代码肯定没有动过(之前出现过,过了一天恢复) 3.防火 ...
- 微信小程序获取二维码(直接上代码)https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=ACCESS_TOKEN
应为是直接返回二进制数据所有与其他接口些许差别,希望能帮助现在的你! 谢谢!!! /** * 37.微信二维码生成 */ public String getWeiXinCourseMap() { ...
- Java企业微信开发_11_异常:java.net.UnknownHostException: qyapi.weixin.qq.com
原因: 网络原因导致 dns解析失败. 解决方案: 方案一 : 1.查看你的服务器能否ping通外网,不过不行说明你的网络出了问题. (我的情况是客户的应用服务器只能内网访问,所以是网络出问题 ...
- org/apache/commons/pool/impl/GenericObjectPool异常的解决办法
org/apache/commons/pool/impl/GenericObjectPool异常的解决办法 webwork+spring+hibernate框架的集成, 一启动Tomcat服务器就出了 ...
- Jmeter返回org.apache.http.NoHttpResponseException: The target server failed to respond解决办法
1.问题:这段时间使用jmeter压测时(300个请求,持续压300s,加速期10s),压力平稳时偶然错误,部分请求失败事务报错信息如下 org.apache.http.NoHttpResponseE ...
随机推荐
- 【GMT43智能液晶模块】例程二十二:USB_HID实验——双向数据传输
源代码下载链接: 链接:https://pan.baidu.com/s/1iSAUQnHoLI3WRPm-DimeSA 提取码:69vp 复制这段内容后打开百度网盘手机App,操作更方便哦 GMT43 ...
- windows下安装zk
1 下载安装包并解压 2 修改conf下配置文件名字 zoo_sample.cfg 文件名改为 zoo.cfg 3 启动zk zKServer.cmd 4启动客户端连接测试 zKCli.cmd 127 ...
- Promise.resolve解析
总结自:https://blog.csdn.net/lq15310444798/article/details/81275278 Promise.resolve返回一个Promise实例 参数分4种情 ...
- Javacript Remove Elements from Array
參考自: https://love2dev.com/blog/javascript-remove-from-array/ 1. Removing Elements from End of Array ...
- Google Adsense(谷歌网站联盟)广告申请指南
Google AdSense 是一种获取收入的快速简便的方法,适合于各种规模的网站发布商.它可以在网站的内容网页上展示相关性较高的 Google 广告,并且这些广告不会过分夸张醒目.由于所展示的广告同 ...
- 世界视频编码器大赛结果揭晓,腾讯V265编码器勇夺两项第一
2019年10月22日,由莫斯科国立大学(Moscow State University)举办的MSU世界视频编码器大赛成绩揭晓, 腾讯内部开源协同的V265编码器再创佳绩,一举拿下PSNR(峰值信噪 ...
- 01.在Java中如何创建PDF文件
1.简介 在这篇快速文章中,我们将重点介绍基于流行的iText和PdfBox库从头开始创建 PDF 文档. 2. Maven 依赖 <dependency> <groupId> ...
- [Linux] 树莓派 4B 安装 Ubuntu 19.10 (Eoan Ermine) IOT 版
硬件:Raspberry Pi 4B系统:Ubuntu 19.10 (Eoan Ermine) for IOT官网:https://ubuntu.com/download/iot/raspberry- ...
- 三、SpringBoot整合Thymeleaf视图
目录 3.1 Thymeleaf视图介绍 3.2 创建SpringBoot项目 3.2 配置Thymeleaf 3.3 编写Demo 3.4 小结 3.1 Thymeleaf视图介绍 先看下官网的介绍 ...
- stm32f103c8串口USART1发送多一字节
用UART写了一段Bootloader代码,遇到了一个很奇怪的现象. 代码如下:简单介绍一下就是先统一配置MCU的IO端口,然后配置串口参数,然后循环发送‘0’和'\r’.16进制是0x30 0x0d ...