I'm trying to debug code that I've built from source. It is started with the wrapper from Tanuki. I'm debugging inside IntelliJ idea but I'm not sure that is the problem. The debugger correctly stops at all lines where I've put a break point but never else so F8, "step over" doesn't work. Very tiresome as I have to put break points every where :) Am I doi
我试图调试我从源代码构建的代码。 它是从Tanuki的包装开始的。 我正在调试IntelliJ的想法,但我不知道这是问题。 调试器正确地停止在我放置了一个断点的所有行,但从来没有其他人,所以F8,“跳过”不起作用。 非常烦人,因为我必须在每个地方放置折点:) 难道我做错了什么? 你如何建立这个项目? 如果使用Ant或其他工具构建它,请确保编译是在启用了调试信息的情况下执行的(对于Ant javac任务,debug = true)。 构
I am writing to a RabbitMQ queue with spring amqp using the RabbitTemplate class. I use the convertAndSend method to send messages to the queue. This works well under normal situations, but it seems to fail silently if the queue doesn't exist. No exception is thrown and no error/debug message is logged to the logger. What is the best way for me to make sure the message was delivered? H
我正在使用RabbitTemplate类与Spring amqp一起写入RabbitMQ队列。 我使用convertAndSend方法将消息发送到队列。 这在正常情况下运行良好,但如果队列不存在,它似乎无声无息地失败。 不会引发异常,也不会将错误/调试消息记录到记录器中。 什么是确保信息传递的最佳方式? 这是一个当前代码正在做什么的例子。 RabbitTemplate template = new RabbitTemplate(factory); template.setQueue(queueName); template.setRoutin
我知道静态内容首先在内存中加载,但为什么'IT'在'CT'之前打印,但我没有提到它是静态的? class Person { Person() { System.out.print(" CP"); } static { System.out.print("SP"); } } class Teacher extends Person { Teacher() { System.out.print(" CT"); } { System.out.print(" IT"); } } public class StaticTest {
我知道静态内容首先在内存中加载,但为什么'IT'在'CT'之前打印,但我没有提到它是静态的? class Person { Person() { System.out.print(" CP"); } static { System.out.print("SP"); } } class Teacher extends Person { Teacher() { System.out.print(" CT"); } { System.out.print(" IT"); } } public class StaticTest {
为什么这个第一if编译阱和第二失败? if(proceed) {int i;} // This compiles fine. if(proceed) int i;// This gives an error. (Syntax error on token ")", { expected after this token) Because the language spec says so: http://docs.oracle.com/javase/specs/jls/se7/html/jls-6.html A declaration introduces an entity into a program and includes an identifier (§3.8) that can be used in a name to refer to
为什么这个第一if编译阱和第二失败? if(proceed) {int i;} // This compiles fine. if(proceed) int i;// This gives an error. (Syntax error on token ")", { expected after this token) 因为语言规范如此说: http://docs.oracle.com/javase/specs/jls/se7/html/jls-6.html 声明将一个实体引入到一个程序中,并且包含一个标识符(§3.8),可以在名称中使用该标识符来引用该实体。 申报的实体是以下之一: ... 一个
My first attempt was: DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z"); Date date = formatter.parse(string); It throws ParseException, so I found this hack: DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z"); TimeZone timeZone = TimeZone.getTimeZone("Etc/GMT"); formatter.setTimeZone(timeZone); Date date = formatter.parse(string); It did not work either, a
我的第一次尝试是: DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z"); Date date = formatter.parse(string); 它抛出ParseException,所以我发现这个黑客: DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z"); TimeZone timeZone = TimeZone.getTimeZone("Etc/GMT"); formatter.setTimeZone(timeZone); Date date = formatter.parse(string); 它也没有工作,现在我卡住了。 如
I'm looking for alternatives for my team to create simple REST services which respond in JSON format to several clients. As far these services are developed on Spring MVC with Hibernate. It is a mandatory to connect and work with legacy databases (SQLServer, DB2 and MySQL - depends on project). Now I'm looking for alternatives to take the service development to a lighter approach. Don
我正在寻找我的团队的替代品来创建简单的REST服务,这些服务以JSON格式向多个客户端进行响应。 迄今为止,这些服务是在Spring MVC和Hibernate上开发的。 连接和使用遗留数据库是必需的(SQLServer,DB2和MySQL - 取决于项目)。 现在我正在寻找替代方案,将服务开发转变为更轻松的方法。 不要误会我的意思:Spring做得很好,但遗憾的是,我们团队中的每个人都不熟悉Spring甚至Hibernate。 对此的补充:在大多数情况下,甚
I'm triying to consume a Local EJB in the same Glassfish, but different ears. But Glassfish can't found the local EJB or can't consume I read this: According to the JavaEE tutorial, the client of a @Local bean "must run in the same JVM as the enterprise bean it accesses." In the first ear , I have the local Interface inside a jar @Local public interface MyLocalBean {
我试图在同一个Glassfish中使用本地EJB,但使用不同的耳朵。 但Glassfish无法找到本地EJB或无法使用 我读到: 根据JavaEE教程,@Local bean的客户端“必须与它访问的企业bean在同一个JVM中运行。” 在第一个耳朵里 ,我有一个罐子里的本地接口 @Local public interface MyLocalBean { int getNumber(int num3); } 在另一个jar中,我有这个实现 @Stateless @LocalBean public class MyLocalBeanImpl implements MyLocalBe
In C# I can do this: IEnumerable<long> ids = things.select(x => x.Id); In Java I have to do this: Collection<Long> ids = new ArrayList<Long>(things.size()); for(Thing x : things) ids.add(x.getId()); Have to do this sort of thing quite a lot now and wonder if there is a more generic way to do this in Java. Could create a method to do it, but then I would have to add an
在C#中,我可以这样做: IEnumerable<long> ids = things.select(x => x.Id); 在Java中,我必须这样做: Collection<Long> ids = new ArrayList<Long>(things.size()); for(Thing x : things) ids.add(x.getId()); 现在必须做很多这类事情,并想知道在Java中是否有更通用的方法来实现这一点。 可以创建一个方法来做到这一点,但接下来我将不得不添加一个接口与getId方法或类似的东西......我不能.
We are developing an app in which we have to support multiple browser tabs/windows. Our setup: MyFaces 2.1, Spring, Orchestra By default the org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION is set to 20. This means that if you open 21 tabs in browser, then the page in the first tab stops working - no view state for given view. The same will happen if you open 2 tabs and request 21 view updates
我们正在开发一个应用程序,我们必须支持多个浏览器选项卡/窗口。 我们的设置:MyFaces 2.1,Spring,Orchestra 默认情况下,org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION设置为20.这意味着如果您在浏览器中打开了21个选项卡,则第一个选项卡中的页面停止工作 - 给定视图无视图状态。 如果您在第二个选项卡中打开2个选项卡并请求21个视图更新(即,Ajax事件),则会发生同样的情况。 然后在第一个选项卡中单击将生成相
I want to compare two Long objects values using if conditions. When these values are less than 128 , the if condition works properly, but when they are greater than or equal to 128 , comparison fails. Example: Long num1 = 127; Long num2 = 127; if (num1 == num2) { // Works ok } Comparison on the code above works properly, but fails in the code below: Long num1 = 128; Long num2 = 128; i
我想使用if条件比较两个Long对象值。 当这些值小于128时 , if条件正常工作,但是当它们大于或等于128时 ,比较失败。 例: Long num1 = 127; Long num2 = 127; if (num1 == num2) { // Works ok } 上面的代码比较正常工作,但在下面的代码中失败: Long num1 = 128; Long num2 = 128; if (num1 == num2) { // Does NOT work } 为什么比较Long变量与大于127的值有问题? 如果变量数据类型更改为长基元 ,则比