[英]static weaving eclipselink jpa with spring and tomcat
我正在嘗試使用maven使用Eclipselink + Spring + JPA實現靜態編織。 我已經用Java配置(沒有context.xml)配置了spring項目。 我嘗試了以下操作:
添加了以下編織規范。
<property name="eclipselink.weaving" value="static" />
如下 :
@Bean()
public DataSource getDataSource() {
BoneCPDataSource ds = new BoneCPDataSource();
log.debug("Driver Name : " + driverClassName);
try {
Class.forName(driverClassName);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
log.debug("DB Url : " + url);
ds.setDriverClass(driverClassName);
ds.setJdbcUrl(url);
ds.setUsername(username);
ds.setPassword(password);
ds.setMaxConnectionsPerPartition(5);
ds.setMinConnectionsPerPartition(2);
ds.setAcquireIncrement(2);
ds.setDefaultAutoCommit(false);
Properties props = new Properties();
props.put("eclipselink.weaving", "static");
try {
ds.setProperties(props);
} catch (Exception e) {
e.printStackTrace();
}
return ds;
}
@Bean(name = "em")
public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(getDataSource());
em.setJpaDialect(jpaDialect());
em.setPackagesToScan("com.cdl.hp50.model", "com.cdl.hp50.model.person");
em.setPersistenceUnitName(persistenceUnitName);
DatabasePlatform dp = new MySQLPlatform();
em.setJpaVendorAdapter(getEclipseLinkJpaVendorAdapter());
return em;
}
如下:
<plugin>
<groupId>de.empulse.eclipselink</groupId>
<artifactId>staticweave-maven-plugin</artifactId>
<version>1.0.0</version>
<executions>
<execution>
<phase>process-classes</phase>
<goals>
<goal>weave</goal>
</goals>
<configuration>
<persistenceXMLLocation>META-INF/persistence.xml</persistenceXMLLocation>
<logLevel>FINE</logLevel>
</configuration>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>org.eclipse.persistence.jpa</artifactId>
<version>${eclipselink.version}</version>
</dependency>
</dependencies>
</plugin>
我已明確指定使用靜態(構建時間)編織。 當我使用maven install
發動戰爭時,persistence.xml中列出的實體已成功編織。 但是,當我向雄貓部署戰爭時,它會出現以下異常:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'em' defined in class com.cdl.hp50.config.DBConfig: Invocation of init method failed; nested exception is java.lang.IllegalStateException: Cannot apply class transformer without LoadTimeWeaver specified
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1568)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:540)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:956)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:747)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4992)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5492)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:649)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1245)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1895)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: Cannot apply class transformer without LoadTimeWeaver specified
at org.springframework.orm.jpa.persistenceunit.SpringPersistenceUnitInfo.addTransformer(SpringPersistenceUnitInfo.java:80)
at org.eclipse.persistence.jpa.PersistenceProvider.createContainerEntityManagerFactory(PersistenceProvider.java:348)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:341)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1627)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1564)
... 25 more
我嘗試將eclipselink.weaving
設置為false
。 但是仍然會給出相同的錯誤。 我不知道為什么要尋找LoadTimeWeaver
。 請建議我在這里我想念的。
更新:
我在github上上傳了包含eclipselink,spring mvc,spring data jpa,sitemesh的入門項目
編輯:我想我找到了你的問題
props.put("eclipselink.weaving", "static");
try {
ds.setProperties(props);
您是否正在嘗試將eclipselink屬性應用於數據源? 如果檢查我的示例context.xml(形成下面的應用程序),則需要將jpaPropertyMap應用於LocalContainerEntityManagerFactoryBean。
因此,您應該將代碼更改為
em.setjpaPropertyMap(props)
舊答案:
首先,對於此類問題,一個示例項目將非常好。 好吧,我為您做了,可以在以下網址找到: https : //github.com/baumgartner/eclipselink-static-weaving
壞消息是:我無法重現您的問題,我的應用程序在Tomcat 7上正常工作。
您是否檢查過.class文件是否被static-weaving-plugin擴展了? 編織的文件是否在您的tomcat文件夾中? tomcat wtpwebapps-folder中的文件正確嗎? (有時同步只是失敗)您是否使用JAD(java反編譯器)對類進行反編譯並檢查它們是否得到了增強? 增強的實體如下所示:
public class asdf.User implements java.lang.Cloneable, org.eclipse.persistence.internal.weaving.PersistenceWeaved, org.eclipse.persistence.internal.descriptors.PersistenceEntity, org.eclipse.persistence.internal.descriptors.PersistenceObject, org.eclipse.persistence.queries.FetchGroupTracker, org.eclipse.persistence.internal.weaving.PersistenceWeavedFetchGroups, org.eclipse.persistence.descriptors.changetracking.ChangeTracker, org.eclipse.persistence.internal.weaving.PersistenceWeavedChangeTracking, org.eclipse.persistence.internal.weaving.PersistenceWeavedRest {
如果部署戰爭,您的應用程序能正常工作嗎? 如果您從IDE運行應用程序,是否可以正常工作?
我也嘗試使用maven使用Eclipselink + Spring + JPA實現靜態編織。 一切都工作得很好,除了訪存類型永遠不會工作懶惰 。 最后,我發現這個文章與工作對我來說完美的解決方案。
解決的辦法是向我的maven pom.xml中添加一個插件。
<plugin>
<artifactId>eclipselink-staticweave-maven-plugin</artifactId>
<groupId>au.com.alderaan</groupId>
<version>1.0.4</version>
<executions>
<execution>
<goals>
<goal>weave</goal>
</goals>
<phase>process-classes</phase>
<configuration>
<logLevel>ALL</logLevel>
</configuration>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>${eclipselink.version}</version>
</dependency>
</dependencies>
</plugin>
EclipseLink也建議。
靜態編織的唯一問題是,即使您願意,也無法獲取渴望的東西。 因此,我不是在使用編織,而是批量或聯接獲取
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