Configure spring to manage JDO in Google App Engine

The reason is that I don't know how to design the update method of JDO. Then I would like to refer to some other specific operations when I directly import objects during General update operations, then download a complete set of spring source code for reference. I found that the spring ORM package not only encapsulates mainstream cash storage methods, but also supports JDO and JPA, therefore, I don't need to write the JDO encapsulation of the base class myself, so use it directly. Since there are relatively few examples of combining spring and JDO on the internet, I am also very depressed, how can I configure it badly?

<Bean id = "persistencemanagerfactory" class = "org. springframework. Orm. JDO. localpersistencemanagerfactorybean">

Some configuration information under this bean. In the absence of spring, persistencemanagerfactory is directly returned through a factory class,

Private Static final persistencemanagerfactory pmfinstance = jdohelper. getpersistencemanagerfactory ("transactions-optional ");

Therefore, when I see similar configurations on the internet, I am particularly sensitive. <property name = "persistencemanagerfactoryname" value = "transactions-optional"/>, of course, I will also check whether this parameter exists in this class. The younger brother hasn't fully understood the source code of spring. After a little reading, I found this class in this class, try it first. Unfortunately, when you actually use it, the result will be thrown incorrectly. In a difficult search, I found a copy of this address so that I can start the service without throwing any errors.Code(Http://wjing63.javaeye.com/blog/464310), but unexpectedly, when performing the makepersistent operation, the hateful error comes again, exception is as follows:
Java. Lang. nosuchmethoderror: javax. JDO. persistencemanager. makepersistent (ljava/lang/object;) V
At org. springframework. Orm. JDO. jdotemplate $9. doinjdo (jdotemplate. Java: 374)
At org.springframework.orm.jdo.jdotemplate.exe cute (jdotemplate. Java: 228)
At org. springframework. Orm. JDO. jdotemplate. makepersistent (jdotemplate. Java: 372)
Since at this moment I have been tired of bombing, so continue Google, found a pretty convincing post in a forum (http://www.jpox.org/servlet/forum/viewthread? Thread = 3500) index by graph and re-update spring. jar in the application. The result is fine.

 

The complete configuration is summarized as follows:
<Bean id = "persistencemanagerfactory"
Class = "org. springframework. Orm. JDO. localpersistencemanagerfactorybean">
<Property name = "jdoproperties">
<Props>
<Prop key = "javax. JDO. persistencemanagerfactoryclass">
Org. datanucleus. Store. appengine. JDO. datastorejdopersistencemanagerfactory
</Prop>
<Prop key = "javax. JDO. Option. connectionurl">
Appengine
</Prop>
<Prop key = "javax. JDO. Option. nontransactionalread">
True
</Prop>
<Prop key = "javax. JDO. Option. nontransactionalwrite">
True
</Prop>
<Prop key = "javax. JDO. Option. retainvalues">
True
</Prop>
<Prop key = "datanucleus. appengine. autocreatedatastoretxns">
True
</Prop>
</Props>
</Property>
<! -- Property name = "persistencemanagerfactoryname" value = "transactions-optional"/-->

</Bean>

<Bean id = "jdotransactionmanager" class = "org. springframework. Orm. JDO. jdotransactionmanager">
<Property name = "persistencemanagerfactory" ref = "persistencemanagerfactory"/>
</Bean>

<Bean id = "transactioninterceptor" class = "org. springframework. transaction. Interceptor. transactionproxyfactorybean">
<Property name = "transactionmanager" ref = "jdotransactionmanager"/>
<Property name = "target" ref = "employeeservice"/>
<Property name = "transactionattributes">
<Props>
<Prop key = "Save *"> propagation_required </prop>
<Prop key = "Update *"> propagation_required </prop>
<Prop key = "del *"> propagation_required </prop>
<Prop key = "*"> propagation_required, readonly </prop>
</Props>
</Property>
</Bean>