小编Raf*_*fal的帖子

请看下面的代码:

Method methodInfo = MyClass.class.getMethod("myMethod");

这可行,但方法名称作为字符串传递,因此即使myMethod不存在,这也将编译.

另一方面,Java 8引入了方法引用功能.它在编译时检查.可以使用此功能获取方法信息吗？

printMethodName(MyClass::myMethod);

完整示例:

@FunctionalInterface
private interface Action {

    void invoke();
}

private static class MyClass {

    public static void myMethod() {
    }
}

private static void printMethodName(Action action) {
}

public static void main(String[] args) throws NoSuchMethodException {
    // This works, but method name is passed as a string, so this will compile
    // even if myMethod does not exist
    Method methodInfo = MyClass.class.getMethod("myMethod");

    // Here we pass reference to a method. It …

我想从Python脚本访问Windows共享(例如\ backupserver\backups).共享受用户名和密码保护.如何使用用户名和密码打开此共享,例如列出其内容？

我有Richfaces应用程序,我部署到Glassfish v3.好几个星期(差不多)一切正常,但今天突然出现了以下错误.我的pom.xml中有jsf-facelets-1.1.14.jar依赖项.我不知道如何解决这个问题.救命!!

Source Document: jndi:/server/swmind.rcp.web/WEB-INF/faces-config.xml Cause: Unable to find class 'com.sun.facelets.FaceletViewHandler'
    at com.sun.faces.config.processor.AbstractConfigProcessor.createInstance(AbstractConfigProcessor.java:275)
    at com.sun.faces.config.processor.ApplicationConfigProcessor.setViewHandler(ApplicationConfigProcessor.java:527)
    at com.sun.faces.config.processor.ApplicationConfigProcessor.processViewHandlers(ApplicationConfigProcessor.java:847)
    at com.sun.faces.config.processor.ApplicationConfigProcessor.process(ApplicationConfigProcessor.java:331)
    at com.sun.faces.config.processor.AbstractConfigProcessor.invokeNext(AbstractConfigProcessor.java:114)
    at com.sun.faces.config.processor.LifecycleConfigProcessor.process(LifecycleConfigProcessor.java:116)
    at com.sun.faces.config.processor.AbstractConfigProcessor.invokeNext(AbstractConfigProcessor.java:114)
    at com.sun.faces.config.processor.FactoryConfigProcessor.process(FactoryConfigProcessor.java:223)
    at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:335)
    at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:223)
    at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:4591)
    at com.sun.enterprise.web.WebModule.contextListenerStart(WebModule.java:535)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:5193)
    at com.sun.enterprise.web.WebModule.start(WebModule.java:499)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:928)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:912)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:694)
    at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1933)
    at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1605)
    at com.sun.enterprise.web.WebApplication.start(WebApplication.java:90)
    at org.glassfish.internal.data.EngineRef.start(EngineRef.java:126)
    at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:241)
    at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:236)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:339)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:183)
    at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:272)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:305)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:320)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1176)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$900(CommandRunnerImpl.java:83)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1235)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1224)
    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:365)
    at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:204)
    at …