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An error occurred while configuring SSHUnable to load configuration.-Bean-jar:file:/d:/program%20files/apache%20software%20foundation/tomcat%206.0/webapps/testjson/web-inf/lib/ struts2-core-2.1.8.1.jar!/struts-default.xml:53:89For the novice who just started to configure Struts2 , may encounter these problems, I also encountered this problem, online search for half a day did not find very satisfied with the explanation, most of the explanations are no

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merge them together　 Public classBraveknightImplementsKnight {PrivateQuest Quest; PrivateMinstrel Minstrel; Publicbraveknight (Quest Quest, Minstrel Minstrel) { This. Quest =Quest; This. Minstrel =Minstrel; } Public voidEmbarkonquest ()throwsquestexception {minstrel.singbeforequest (); Quest.embark (); Minstrel.singafterquest (); }} It should be able to run, all you have to do is go back to your config file and then declare a minstrel bean and inject it into the Braveknight c

committed (Read Committed): prevents dirty reads from occurring.④ Read uncommitted (READ UNCOMMITTED): lowest level, no case is guaranteed.The top four isolation levels are the serializable level, the lowest is the read uncommitted level, and the higher the level, the lower the efficiency of execution. A level like serializable is a lock table (similar to a lock in Java Multi-threading) so that other threads can only wait outside the lock, so what is

1. Create Mail transmitter First define the Javamailsenderimpl object and set it SMTP-related information, which is equivalent to our own mailbox, as follows: Java code Javamailsenderimpl MailSender = new Javamailsenderimpl (); Mailsender.sethost ("smtp.qq.com"); Mailsender.setusername ("mosaic@qq.com"); Mailsender.setpassword ("asterisks"); Of course, the better way is to use configuration files for config

describes the "injected object relies on the IOC container configuration dependent object". Type Matching: Although we make service calls through interfaces (or abstract classes), the service itself is implemented in a specific service type, which requires a type registration mechanism to solve the matching relationship between the service interface and the service type; Constructor Injection (Constructor injection): The IOC container intelligently chooses to select and invoke the