目录1常见的通讯故障以及E2E机制能够检出的通讯故障2Functionalsafety功能安全对通信的要求3通信故障的原因3.1软件故障3.2随机硬件故障3.3外部影响、环境压力4常见的“E2E通讯保护”解决方案4.1无E2E保护的信号数据流示例4.2E2EProtectionWrapper解决方案示例4.3E2ETransformer解决方案示例4.3COME2ECallout解决方案介绍5E2Eprofile介绍5.1E2EProfile1机制5.2E2EProfile2机制5.3E2EProfile4机制5.4E2EProfile5机制5.5E2EProfile6机制5.6E2EProf

在EffectiveJava在“第22项:优先考虑静态成员类而不是非静态”项中，JoshBloch说:Eachinstanceofanonstaticmemberclassisimplicitlyassociatedwithanenclosinginstanceofitscontainingclass.Withininstancemethodsofanonstaticmemberclass,youcaninvokemethodsontheenclosinginstanceorobtainareferencetotheenclosinginstanceusingthequalifiedt

在EffectiveJava在“第22项:优先考虑静态成员类而不是非静态”项中，JoshBloch说:Eachinstanceofanonstaticmemberclassisimplicitlyassociatedwithanenclosinginstanceofitscontainingclass.Withininstancemethodsofanonstaticmemberclass,youcaninvokemethodsontheenclosinginstanceorobtainareferencetotheenclosinginstanceusingthequalifiedt

com.google.common.base.Function接口(interface)(来自GoogleGuava)将apply定义为:@NullableT应用(@NullableF输入);该方法有以下javadoc注释:@throwsNullPointerException如果{@codeinput}为null并且此函数不接受null参数。FindBugs提示我的Function实现:privatestaticfinalclassExampleimplementsFunction{@Override@NullablepublicStringapply(@NullableMyBean

com.google.common.base.Function接口(interface)(来自GoogleGuava)将apply定义为:@NullableT应用(@NullableF输入);该方法有以下javadoc注释:@throwsNullPointerException如果{@codeinput}为null并且此函数不接受null参数。FindBugs提示我的Function实现:privatestaticfinalclassExampleimplementsFunction{@Override@NullablepublicStringapply(@NullableMyBean

当我执行以下代码时:publicstaticvoidmain(String[]args){try{FirefoxDriverdriver=newFirefoxDriver();driver.get("http:www.yahoo.com");}catch(NoClassDefFoundErrorex){System.out.println("error:"+ex.getStackTrace());}}我遇到以下错误:error:[Ljava.lang.StackTraceElement;@80f4cbExceptioninthread"main"java.lang.NoClassDef

当我执行以下代码时:publicstaticvoidmain(String[]args){try{FirefoxDriverdriver=newFirefoxDriver();driver.get("http:www.yahoo.com");}catch(NoClassDefFoundErrorex){System.out.println("error:"+ex.getStackTrace());}}我遇到以下错误:error:[Ljava.lang.StackTraceElement;@80f4cbExceptioninthread"main"java.lang.NoClassDef

发送键不起作用。请帮我解决这个问题..WebElementusername=driver.findElement(By.xpath("//*[@id='username']"));username.sendKeys("123456");控制台:Exceptioninthread"main"org.openqa.selenium.WebDriverException:unknownerror:callfunctionresultmissing'value'(Sessioninfo:chrome=65.0.3325.31)(Driverinfo:chromedriver=2.33.5061

发送键不起作用。请帮我解决这个问题..WebElementusername=driver.findElement(By.xpath("//*[@id='username']"));username.sendKeys("123456");控制台:Exceptioninthread"main"org.openqa.selenium.WebDriverException:unknownerror:callfunctionresultmissing'value'(Sessioninfo:chrome=65.0.3325.31)(Driverinfo:chromedriver=2.33.5061

我有以下代码：@Qualifier("dateObjectMapper")privateObjectMappermapper;@AutowiredDefaultProjectTweetSearchProvider(Clientclient,ObjectMappermapper){this.client=client;this.mapper=mapper;}以上代码不起作用。我收到一条错误消息，说明弹簧容器无法决定在构造函数中使用哪个beanObjectMapper。如果我放置@Resource(name="dateObjectMapper")在我的上方mapper字段，它有效。为什么在这种情况