Org. springframework. transaction. CannotCreateTransactionException: cocould not open Hibernate Session, hibernatesession
Problem --
Org. springframework. transaction. CannotCreateTransactionException: cocould not open Hibernate SessionThis is not a problem with the driver jar package of the data source.
Solution --
Add the jar file, Maven dependency:
Throw an exception: [Java] org. hibernate. hibernateexception: Problem parsing configuration/hibernate. cfg. XML,
[Java] caused by: org. dom4j. Specify entexception: Invalid byte 2 of 2-byte UTF-8 sequence. nested exception: Invalid byte 2 of 2-byte UTF-8 sequence ..
The two are the same problem. The XML file encoding is incorrect.
Cause: CopyArticleInCodeWhen saved, because there are Chinese characters,
Spring manages hibernate, but it always reports an error and cannot create a database. After a long struggle, I thought my configuration was wrong.
Finally, the question of entity annotation was found.
Import javax. Persistence. ID; import javax. Persistence. joincolumn; import javax. Persistence. onetoone; import org. hibernate. Annotations. entity; // The question @ entitypublic class
In this way
Org
done after your reference,
Here I will only talk about solutions that may cause problems.
After writing the code, run, test, and an exception occurs:
Java. lang. noclassdeffounderror: ORG/Apache/Oro/text/perl/perl5util
The following error message indicates that the class definition is missing: ORG/Apache/Oro/text/perl/perl5util.
And this class exists with the jakarta-oro.jar package, this package g
Java. Lang. noclassdeffounderror: org. ksoap2.serialization. soapobject
This is becauseProgramThe Org. ksoap2.serialization. soapobject package is not marked or is not completed.
1. In project properties, right-click the project
Check whether the corresponding package is marked in Java build path --> libraries.
2. In order and export, select the corresponding package.
3. Delete the corresponding APK
. incincludelib kernel32.libincludelib masm32.libincludelib debug. lib. data V1 db 0 align 4; ensure that the starting address of the next variable is a multiple of 4 V2 db 0 V3 db 0. codemain proc printdec offset V1; 4206592 printdec offset V2; 4206596 (!) Printdec offset V3; 4206597 retmain endpend main; the parameter after align is 2n. It can also be tested as follows: 1, 2, 8, 16
The even is an even align 2
; Cmdflat, stdcallinclude windows. incinclude kernel32.incinclude masm3
Several basic shortcut key conversion keywordsUsed to convert a text to Todo, done, or converted back with SHIFT + Left/right buttonPriority levelshift+ Up/Down keyScheduled Dead Line timeC-c C-s C-c c-dThis will open the calendar with SHIFT + Left/right key to move the dateThe progress of TODO itemRefer to Parts 4 and 5 of http://www.cnblogs.com/holbrook/archive/2012/04/14/2447754.htmlAgenda commandM-x Org-agendaTimeline Display ScheduleL commandTh
If you see this article, you are expected to have encountered such a trap. When you appear to be the right code (should be the first encounter with similar code, these most rapeseed textbooks or networks) after a Thunderbolt roaster keyboard, with full of excitement running, but was ejected can ' t find the main class and so on similar dialog box, Look at the output information on the Eclipse console showing one or two lines of red characters java.lang.noclassdeffounderror:org/eclipse/core/runti
A recent web development, the use of the Struts2 spring2.5 hibernate3.3 project has been developed, and later need to use WebService, Added the axis1.4 up, in the absence of adding webservice, the program compiles without errors, then inexplicably wrong, appear org/apache/xml/serializer/treewalker Said on the Internet is Xalan-2.7.1.jar package did not add, later found that added Xalan-2.7.1.jar or errors, and finally feel that should not add a comple
Note:
A while ago in Java, because it is a small plug-in, so the operation is dependent on the previous project works, where the JSON conversion, the map to the JSON string, this should be a very simple code, the code is completed, the local IED test through, the following upgrade deployment to the test environment, Found that the test does not pass, always prompted this error:
Org/apache/commons/lang/exception/nestableruntimeexception See this prob
Org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass (classrealm.java:239) at Org.codehaus.plexus.classworlds.launcher.Launcher.getMainClass (launcher.java:144) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (launcher.java:266) at Org.codehaus.plexus.classworlds.launcher.Launcher.launch (launcher.java:229) at Org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (launcher.java:415) at Org.codehaus.plexus.classworlds.launcher.Launcher.main (launcher.java:3
Error: org. hibernate. queryexception: Expected positional parameter count: 2, actual parameters: [] [from user where username =? And Password =?]
The error code is:
Query q = session. createquery ("from user where username =? And Password =? ");
Cause:
There are two placeholders "?" In the hql statement. In query. setparameter (), a relative bit must be passed in. Otherwise, the above exception will occur.
Solution:
Query q = session. createquery
Today I encountered another error.
Org. hibernate. lazyinitializationexception-cocould not initialize proxy-the owning session was closed
I tested and found several solutions:
1. Change lazy = true to lazy = false.
2. If XXX. Load (class, ID) is used in the query, it is changed to XXX, get (class, ID)3. Add the following content to the Web. xml file:
>
When running a Java application, the following error occurs.
Org. logicalcobwebs. proxool. Housekeeper sweepWarning: #0002 was active for 634297 milliseconds and has been removed automaticaly. the thread responsible was named 'HTTP-8080-1 ', but the last SQL it timed med is unknown because the trace property is not enabled.
Error code:
Try {
Analysis:
According to the prompt, the database connection in the program is not released. The connection may
Calling a WebServices service today throws an exception: org. xml. Sax. saxexception: simpledeserializer encountered a child element, which is not expected, in SOMETH ing it was trying to deserialize.
It took one day to find information online.
Call the WebServices code:
Getsubscriptionreq input = new getsubscriptionreq ();
If the getsubscriptionrsp class object returned by services is not associated with another subinfo class object. this exception
The exception as following:
[Fatal error] server. msdk. Perf. All. xml: 192: 1: content is not allowed in trailing section.
Org. xml. Sax. saxparseexception: content is not allowed in trailing section.
At com.sun.org. Apache. xerces. Internal. parsers. domparser. parse (unknown source)
At com.sun.org. Apache. xerces. Internal. JAXP. documentbuilderimpl. parse (unknown source)
At javax. xml. parsers. documentbuilder. parse (unknown source)
...
...
W
Org. hibernate. Id. identifiergenerationexception: IDs for this class must be manually assigned before calling save ()
The cause of this error may be that your table has a primary key. But when you insert (call save), the value is null.
The ID (primary key) type in the data table you want to operate on is set to "auto-increment type ".
In hibernate. cfg. XML, the ID generation method is assigned, that is
Solution:
The primary key generation
Org. apache. commons. beanutils is a sub-project under Apache commons. Because of tracking struts, we tracked this package in depth and found that some static tool functions provided by the beanutils class are still very useful. This toolkit is widely used in struts to operate the struts actionform object.
Clonebean: copy a bean object. The reflect method is used to call getter and setter to copy bean objects, which is equally effective for bean ob
The following problems were encountered during project implementation:
Info: couldn't set dynamic validation feature org. xml. Sax. saxnotrecognizedexception: sax feature 'HTTP: // apache.org/xml/features/validation/dynamic' not recognized .......
After careful analysis, the cause of this error is that the XML parser in WebLogic 10.3 has a problem. In WebLogic Server 10.3, weblogic. jar META-INF/services/javax. XML. parsers. saxparserfactory specifies
Environment
JBoss 6.0 + myeclipse 8.6 + MySQL 5.1 + Struts 2.3 + EJB 3.0
Problem
When JBoss is started, "Java. Lang. noclassdeffounderror ORG/Apache/commons/lang3/stringutils jar" exception occurs.
Solution
The commons-lang3-3.1.jar is missing, add this jar to the build path of the project or under webroot/WEB-INF/lib.
References
Http://snowfigure.diandian.com/post/2012-07-20/40029447675
Http://blog.csdn.net/jeffyu328/article/details/7721022
Data do
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.