#DID

Caused by: java.lang.ClassNotFoundException: Didn't find class "io.grpc.helloworldexample.HelloworldActivity" on path: DexPathList

FAQ: Androidapp编译好后安装到手机,运行时闪退,报如下错误:java.lang.RuntimeException:UnabletoinstantiateactivityComponentInfo{io.grpc.helloworldexample/io.grpc.helloworldexampl...

吴裕雄--天生自然轻量级JAVA EE企业应用开发Struts2Sping4Hibernate整合开发学习笔记:HibernateEmbeddedId

<?xmlversion="1.0"encoding="GBK"?><projectname="hibernate"basedir="."default=""><propertyname="src"value="src"/><propertyname="dest"value="...

jmeter-The JVM should have exitted but did not

修改jmeterengine.force.system.exit=true...

android搭建环境错误 daemon not running. starting it now on port 5037 ADB server didn't ACK

1、输入cmd进入dos界面,进入android-sdk-windowsplatform-tools目录,执行下面命令启动adbstart-server出现下面错误*daemonnotrunning.startingitnowonport5037*ADBserverdidn'tACK*failedtostartdaem...

mybatis expected at least 1 bean which qualifies as autowire candidate for this dependency

错误原因:没有引入相应mapper接口,导致spring没有找到依赖解决方法一:使用注解的方法:首先在spring配置文件中添加<beanclass="org.mybatis.spring.mapper.MapperScannerConfigurer">    <...

Codeforces Round #434 (Div. 2, based on Technocup 2018 Elimination Round 1)&&Codeforces 861C Did you mean...【字符串枚举,暴力】

timelimitpertest:1secondmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputBerofficetexteditorhasawiderangeoffeaturesthathelpworkingwithtext...

警告: [SetPropertiesRule]{Context/Loader} Setting property 'useSystemClassLoaderAsParent' to 'false' did not find a matching property.

警告:[SetPropertiesRule]{Context/Loader}Settingproperty'useSystemClassLoaderAsParent'to'false'didnotfindamatchingproperty. 意思是:警告(SetPropertiesRule):装载机}/{上下...

二、gulp报错The following tasks did not complete

gulp4.0存在的错误信息Thefollowingtasksdidnotcomplete:default,Didyouforgettosignalasynccompletion?当gulp为如下代码的时候://以下代码会执行在node环境下constgulp=require("gulp");//创建一个gulp的任务...

React在componentDidMount里面发送请求

总结一下:componentDidmount 是在组件完全挂载后才会执行,在此方法中调用setState 会触发重新渲染,最重要的是,这是官方推荐的!constructor 调用是在一开始,组件未挂载,所以不能用。componentWillMount 调用在 const...

Jmeter执行java脚本结束时提示:The JVM should have exited but did not.

使用jmeter对dubbo进行压测时,需要使用jmeter的sampler里的java请求 使用./jmeter.sh-n-ttest.jmx-ltest.jmx-o-etest后台启动任务,执行结束出现“TheJVMshouldhaveexitedbutdidnot.”现象,jme...

No qualifying bean of type '***' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations:

  搭建springmvc项目的dao层之后,经常出现这样的错误。一般是由于spring扫描时候没有配置具体的目录,或者配置了但是包名不对造成的。但是今天自己出这个问题,找了半天没找到哪里出问题。最后仔细看配置文件,发现是自己的applicationContext-springmvc.xml一处配置...
代码星球 ·2020-04-05

awakeFromNib与viewDidLoad的区别

当一个nib文件对应两个类,File'sOwner的class为XXXViewController,Objects下的View对应的为XXXView时:awakeFromNib:在XXXView.m文件中有效,即只有写在这个类文件中才会调用,写在XXXViewController.m文件中时,不会被调用。viewDid...
代码星球 ·2020-04-05

Maven使用package打包Spring Boot时出现:Unable to find a single main class from the following candidates的问题解决

问题如下:[ERROR]Failedtoexecutegoalorg.springframework.boot:spring-boot-maven-plugin:1.3.5.RELEASE:repackage(default)onprojectinformation:Executiondefaultofgoalorg....

react.js 生命周期componentDidUpdate的另类用法:防止页面过渡刷新

场景:数据新增成功之后,需要返回原来的查询表,这时候的查询,需要使用react的生命周期:componentDidUpdatecomponentDidUpdate()这个生命周期的作用是当props或state更新之后,使用它更新DOM节点。如果使用不当,则查询页面会不停的调用查询的方法,不停的执行刷新操作。因此,需要...

IOS 视图控制对象生命周期-init、viewDidLoad、viewWillAppear、viewDidAppear、viewWillDisappear等的区别及用途

iOS视图控制对象生命周期-init、viewDidLoad、viewWillAppear、viewDidAppear、viewWillDisappear、viewDidDisappear的区别及用途init-初始化程序viewDidLoad-加载视图viewWillAppear-UIViewController对象的...
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