大约有 30,000 项符合查询结果（耗时：0.0356秒） [XML]
How to specify the default error page in web.xml?
...
java.sun.com/xml/ns/javaee/web-app_2_5.xsd specifies no <description> child for the <error-page> element, so pasting the above code as-is in a Servlet 2.5 web.xml will cause XSD validation errors. If I comment the...
Closing JDBC Connections in Pool
...order in the finally block of the try block where you've acquired them. In Java 7 this can be further simplified by using try-with-resources statement.
Is the following method anything close to standard? Looks like an attempt to get a connection from the pool, and if DataSource cannot be establish...
Can you make just part of a regex case-insensitive?
...single-line mode and multi-line mode.
Not all regex flavors support this. JavaScript and Python apply all mode modifiers to the entire regular expression. They don't support the (?-ismx) syntax, since turning off an option is pointless when mode modifiers apply to the whole regular expressions. All...
Variable is accessed within inner class. Needs to be declared final
...
@the_prole I think you can use final in Java, but I am not sure if you can use it when building Android app, so Googling it might be a good idea :-)
– Kevin Zhao
Oct 12 '15 at 20:15
...
Downloading all maven dependencies to a directory NOT in repository?
... libraries for redundant API definitions (e.g. some libraries will include Javax APIs, which can conflict with other versions of the same API), but it's also good if your app needs its dependencies packaged with it for distribution, or just whatever.
– Spanky Quigman
...
What is the Scala annotation to ensure a tail recursive function is optimized?
...tricks):
C:\Prog\Scala\tests>scala
Welcome to Scala version 2.8.0.RC5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_18).
Type in expressions to have them evaluated.
Type :help for more information.
scala> import scala.annotation.tailrec
import scala.annotation.tailrec
scala> class Tails...
裁员！裁员！创业者们的2016“寒冬大逃杀” - 资讯 - 清泛网 - 专注IT技能提升
...，真的有比这个小电摩高吗？
爱鲜蜂有冷链货运车，有系统来统计订单，一个数百人的地推和物流团队。但这个小店老板，只有一个小电摩，选夜里十点不堵车的时间来送货，一次性送尽可能多的货。小电摩和所谓的互联网平...
Postgres: “ERROR: cached plan must not change result type”
...ot change result type when trying to solve the problem in the context of a Java / JDBC application.
I was able to reliably reproduce the error by running schema upgrades (i.e. DDL statements) while my back-end app that used the DB was running. If the app was querying a table that had been changed ...
What exactly is Apache Camel?
...h code samples. In it, Jonathan writes:
Apache Camel is an open source Java framework that focuses on making integration easier and more accessible to developers. It does this by providing:
concrete implementations of all the widely used Enterprise Integration Patterns (EIPs)
connectiv...
How to read a file in Groovy into a string?
...ention that this works even if the File object originated from an ordinary java jar. I wasn't sure if maybe Groovy had its own special File class with the text attribute, or something, but it seems that it doesn't matter where the File object comes from, whether it's instantiated by Groovy code or J...