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z90708833_yp的博客

java技术飞升

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原创 多个微信公众号同时对接一台服务器接口的疑问

一个公众号对一台服务器这个我们都知晓但多个微信公众号同时需要访问和配置在同一个服务器配置接口上时,以下有几个问题:1. 在微信服务器验证 接口这边时,不知道对面发过来的是哪个微信公众号的Token,这个看项目是否都需要严格校验,不需要则直接返回echostr 即可;需要校验,个人见解可在配置发送链接时带上私有定义好的参数, 进行配置区分!2. 第二个问题不太好避免,获取access_token时,不知道是哪个appid,也不知道是哪个应该返回那个token, 返回的参数没有一个已知的值 ...

2021-10-08 15:56:12 1085 1

原创 java程序无故报错:jdk/jre/bin/java:free() invalid pointer:ox00007f01440bd6b0***

记录下碰到的java的tomcat无故错误重启,有碰到的大神请指点指点小弟,万分感谢!!!

2019-04-19 16:56:07 1291 1

原创 linux的系统无故报错,SIGSEGV (0xb) at pc=0x00007f7ba8eebfc1, pid=55066, tid=140167750223616

linux的系统herr_err.log的记录

2019-04-11 22:07:26 5895 4

原创 javax.imageio.IIOException: Unsupported Image TypeUnsupported marker type 0x20

最近遇到了批量导入图片的时候的imageio的异常,先记录下:javax.imageio.IIOException: Unsupported marker type 0x20        at com.sun.imageio.plugins.jpeg.JPEGImageReader.readImage(Native Method)        at com.sun.imageio.pl...

2018-11-22 17:40:06 1245

原创 java.lang.NullPointerException     at org.apache.jsp.WEB_002dINF.pages.login_jsp._jspService(login_j

今天在登录linux上的项目的时候,发现出现以下的错误,先记录下,看下有哪位大神也碰到:这个问题是偶尔再次登录的时候出现的错误,不好复现的问题,所以不知道是不是网上大神们说的class的lib的server-api的jar包和tomcat的冲突了,先记录下来吧!java.lang.NullPointerException    at org.apache.jsp.WEB_002dINF....

2018-11-16 15:39:14 2472 1

原创 MyBatis的构建,动态sql的语句

MyBatis是一个半自动的映射框架,之所以称为半自动,是因为它需要手工匹配提供的POJO、SQL、和映射关系,而Hibernate只需提供POJO和映射关系即可。下载地址:https://github.com/mybatis/mybatis-3/releases创建项目,导入jar包Mybatis的基本构成1、SqlSessionFactoryBuilder(构造器),根据配

2018-01-22 09:25:34 1028

原创 多线程的相关知识点

一、什么是线程,理解线程和进程的关系线程理解:影分身线程是进程里面的一条执行路径,每个线程同享进程里面的内存空间和系统资源一个进程 -- 多线程:各个线程都有不同的分工进程:进程之间的内存空间和系统资源是独立的线程:线程之间是共享内存空间和系统资源的进程里:可以有一条或一条以上的线程进程里只有一条线程的情况下,这条线程就叫做主线程进程里有多条线程

2018-01-14 20:03:32 206

java head space.txt

以下的问题是由于java的堆内存已满,需要java运行时加大java的堆内存空间 2019-10-09 18:02:32.858 [http-nio-8239-exec-6] ERROR c.a.b.c.exceptionHandler.CodeBaseExceptionHandler:69 - Handler dispatch failed; nested exception is java.lang.OutOfMemoryError: Java heap space org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.OutOfMemoryError: Java heap space at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1006) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:877) at javax.servlet.http.HttpServlet.service(HttpServlet.java:661) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.github.xiaoymin.swaggerbootstrapui.filter.SecurityBasicAuthFilter.doFilter(SecurityBasicAuthFilter.java:80) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.github.xiaoymin.swaggerbootstrapui.filter.ProductionSecurityFilter.doFilter(ProductionSecurityFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.OutOfMemoryError: Java heap space

2019-10-12

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