#LD

The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path解决方案

0.环境:  win7系统,Tomcat9配置无误。1.错误:  项目中某一.jps页面忽然出现错误,鼠标点上去为:Thesuperclass"javax.servlet.http.HttpServlet"wasnotfoundontheJavaBuildPath.2.解决:2.1.在Eclipse中,Window--...

GoldenGate对接 mysql

环境:centos7.4mysql5.5.58glibc64位版,下载链接:https://dev.mysql.com/downloads/mysql/5.5.html#downloadsGoldenGateformysql12.3.0.1.0linux版本,下载链接:http://www.oracle.com/tec...
代码星球 ·2020-04-05

Oracle GoldenGate对接 Oracle 11g和Kafka

 本文主要是向读者介绍如何通过ogg为oracle数据库的变更操作实时同步到大数据产品kafka上。开始介绍前,先为读者介绍一下环境背景机器ip和其对应的服务192.168.88.166【ogg目标端】【ogg的mgr(端口1357),rep_test】192.168.88.128【ogg源端】 【...

update cdh version ,but cdh use old conf ,problem solve

最近升级cdh版本,从4.5升级到5.0.0beta-2但是升级后,发现/etc/alternatives路径下的软链接还是只想旧的4.5版本,而且hadoop环境也是沿用4.5的版本conf,导致hive不能正常使用,报错为hdfs的版本不对。后面使用strace工具查看,发现它会与/var/lib/alternat...
代码星球 ·2020-04-05

Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

错误日志:2019-07-1316:04:26.318INFO21144---[main]o.apache.catalina.core.StandardService:Stoppingservice[Tomcat]2019-07-1316:04:26.325WARN21144---[main]o.a.c.loader....

Field redisTemplate in xxxxxx required a bean of type 'org.springframework.data.redis.core.RedisTemplate' that could not be found.

***************************APPLICATIONFAILEDTOSTART***************************Description:FieldredisTemplateincom.demo.service.UserServiceImplrequiredabeanoftyp...

Docker从安装部署到Hello World

Docker是PaaS提供商dotCloud开源的一个基于LXC的高级容器引擎,源代码托管在Github上,基于go语言并遵从Apache2.0协议开源。Docker是一个开源的应用容器引擎,基于Go语言并遵从Apache2.0协议开源。Docker可以让开发者打包他们的应用以及依赖包到一个轻量级、可移植的容器中,然后...

org.apache.ibatis.builder.IncompleteElementException: Could not find result map java.lang.Integer

如图:详细错误信息如下:org.apache.ibatis.builder.IncompleteElementException:Couldnotfindresultmapjava.lang.Integeratorg.apache.ibatis.builder.MapperBuilderAssistant.getSta...

springmvc框架第一帖HelloWorld

1,导入所需jar包2,配置web.xml,配置一个全局的servlet,将所有的请求都交给这个servlet处理<servlet><servlet-name>DispatcherServlet</servlet-name><servlet-class>org.sprin...

Status bar could not find cached time string image. Rendering in-process?

(1)在 Info.plist 中添加如下配置  12>UIViewControllerBasedStatusBarAppearance</<...
代码星球 ·2020-04-04

Caused by: java.lang.IllegalArgumentException: Can not set int field reyo.sdk.enity.xxx.xxx to java.lang.Long

由于数据库字段设置不正确引起的,不能选中alter <table> modify <column> int unsigned;关于unsigned int类型,可以看看它的帮助:INT[(M)] [UNSIGNED] ...

HikariCP 脑火Failed to obtain JDBC Connection: You need to run the CLI build and you need target/classes in your classpath to run.

测试了一下HikariCP连接池报错,无解十一月16,20175:31:59下午org.apache.catalina.core.StandardContextloadOnStartup严重:Servlet[InitTaskServlet]inwebapplication[]threwload()exceptionor...

Tomcat启动log打印到INFO: At least one JAR was scanned for TLDs yet contained no TLD各种解决方式

问题:启动tomcat时,catalina.out日志打印到如下内容就停止不动了,也不报错SEVERE:FarmWarDeployercanonlyworkashostclustersubelement!Dec02,20164:27:39PMorg.apache.catalina.startup.HostConfigd...

设计模式总结篇系列:建造者模式(Builder)

关于建造者模式网上有很多文章,也有些不同的理解。在此结合网上其他文章对建造者模式进行总结。总体说来,建造者模式适合于一个具有较多的零件(属性)的产品(对象)的创建过程。根据产品创建过程中零件的构造是否具有一致的先后顺序,可以将其分为如下两种形式。一、通过Client、Director、Builder和Product形成...

Circular view path [home]: would dispatch back to the current handler URL [/home] again. Check your ViewResolver setup!

Circularviewpath[home]:woulddispatchbacktothecurrenthandlerURL[/home]again.CheckyourViewResolversetup!(Hint:Thismaybetheresultofanunspecifiedview,duetodefaultvi...
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