i am generating Excel Sheet using Spring MVC , for this reason i have the following in my appcontext.xml file
appcontext.xml
<bean class="org.springframework.web.servlet.view.XmlViewResolver">
<property name="order" value="1"/>
<property name="location" value="/WEB-INF/views.xml"/>
</bean>
views.xml
<bean id="excelView" class="com.xxxx.xx.util.MyListExcelView" />
Instead of having the bean reference excelView in a separate views.xml file .can we mention the below in the same appcontext.xml
<bean id="excelView" class="com.xxxx.xx.util.MyListExcelView" />
Sure, you can.
Just add BeanNameViewResolver to your ViewResolver chain.
Of course, you should remove excelView from views.xml in this case.
Here is an example:
appcontext.xml:
<bean class="org.springframework.web.servlet.view.BeanNameViewResolver">
<property name="order" value="0"/>
</bean>
<bean class="org.springframework.web.servlet.view.XmlViewResolver">
<property name="order" value="1"/>
<property name="location" value="/WEB-INF/views.xml"/>
</bean>
<bean id="excelView" class="com.xxxx.xx.util.MyListExcelView" />
YourController.java
#Controller
public class YourController {
// ...
#RequestMapping(value = "/test")
public String test() {
// populate your model here
return "excelView";
}
// ...
}
Related
I have a code that is an error in the Spring Framework
Error Cause I know
So I do not know how to solve it the question.
I am being used with mybatis library
I had multi DataSource of two Account DataBase
I created a root-context.xml
-----------------------root-context.xml -----------------------------------------------------------
Oracle Account 1 Test1
<bean id="dataSourceTest1" class="org.apache.commons.dbcp.BasicDataSource" destroy-m
ethod="close">
<property name="driverClassName" value="net.sf.log4jdbc.DriverSpy"/>
<property name="url" value="jdbc:log4jdbc:oracle:thin:#111.111.1111.1111:1111:Test1"/>
<property name="username" value="TEST1"/>
<property name="password" value="TEST1"/>
<property name="maxIdle" value="200"/>
<property name="maxActive" value="200"/>
<property name="minIdle" value="5"/>
</bean>
<bean id="sqlSessionFactoryTest1" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSourceTest1" />
<property name="mapperLocations" value="classpath*:test/service/server/test1/**/*.xml" />
</bean>
<bean id="sqlSessionTest1" class="org.mybatis.spring.SqlSessionTemplate" name="sqlSessionTest1">
<constructor-arg name="sqlSessionFactory" ref="sqlSessionFactoryTest1" />
</bean>
<mybatis-spring:scan base-package="test.service.server.test1" template-ref="sqlSessionTest1" />
Oracle Account test2
<bean id="dataSourceTest2" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="net.sf.log4jdbc.DriverSpy"/>
<property name="url" value="jdbc:log4jdbc:oracle:thin:#222.222.2222.222:2222:Test2"/>
<property name="username" value="Test2"/>
<property name="password" value="Test2"/>
<property name="maxIdle" value="200"/>
<property name="maxActive" value="200"/>
<property name="minIdle" value="5"/>
</bean>
<bean id="sqlSessionFactoryTest2" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSourceTest2" />
<property name="mapperLocations" value="classpath*:test/service/server/test2/**/*.xml" />
</bean>
<bean id="sqlSessionTest2" class="org.mybatis.spring.SqlSessionTemplate" name="sqlSessionTest2">
<constructor-arg name="sqlSessionFactory" ref="sqlSessionFactoryTest2" />
</bean>
<mybatis-spring:scan base-package="test.service.server.test2" template-ref="sqlSessionTest2"/>
-----------------------root-context.xml END ---------------------------------------------------------
i am not used context:component-scan
<!-- <context:component-scan base-package="test.service.server.test1.test1service"/>-->
<!-- <context:component-scan base-package="test.service.server.test2.test2service"/>-->
I use the SpringJUnit4 each unit test
Were sequentially to (DataSourceTest and SqlSessionFactory Test and SqlSession Test mapperScanTest).
did not have any problems until mapperScanTest.
However, an error occurs when star using the annotation # Service
------------------------------------------service interface code ------------------------------------
public interface Test2_SERVICE {
public List<Test2_VO> GET_ListVO();
}
-------------------------------------------implement service code----------------------------------
#Service("Test2_SERVICE") *//<--Error annotaion*
public class Test2_SERVICEIMPLE implements Test2_SERVICE{
#Resource
Test2_MAPPER mapper;
#Override
public List<Test2_VO> GET_ListVO() {
return mapper.GET_ListMapperVO();
}
}
---------test Code------------------------------
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(locations = { "file:src/main/**/*-context.xml" })
public class TestService {
Logger logger = Logger.getLogger(Thread.currentThread().getClass());
#Autowired
#Qualifier("Test2_SERVICE")
Test2_SERVICE test2_SERVICE;
#Override
public void testString() {
logger.info("---------------------");
List<Test2_VO> listVO = test2_SERVICE.GET_ListVO();
logger.info(listVO );
logger.info("---------------------");
}
}
Error Messages-----------------------------------
Caused by:
org.springframework.context.annotation.ConflictingBeanDefinitionException:
Annotation-specified bean name 'Test2_SERVICE' for bean class
[test.service.server.test2.test2service.Test2_SERVICE] conflicts with
existing, non-compatible bean definition of same name and class
[test.service.server.test2.test2service.Test2_SERVICEIMPLE]
------------------------------------------------end---------------------------------------------
#Service("Test2_SERVICE") *//<--Error annotaion*
The problem did not exist until the object Test2_MAPPER
However, the error begins in Test2_SERVICE
# Service ("Test2_SERVICE") Where there is only used here (Test2_SERVICEIMPLE).
Because of this problem
I am suffering for three days..
Somebody tell me solve the problem for this error message.
Thank you for reading my article.
The problem is that you create a bean with the name "Test2_SERVICE" for Test2_SERVICEIMPLE with this annotation:
#Service("Test2_SERVICE")
//creates the bean with id="TEST2_Service" of the type Test2_SERVICEIMPLE
public class Test2_SERVICEIMPLE implements Test2_SERVICE
and then assign exactly this Test2_SERVICEIMPLE bean to the interface Test2Service
#Autowired
#Qualifier("Test2_SERVICE")
//here you assign the bean of the not matching type Test2_SERVICEIMPLE to
//a variable of type Test2_SERVICE
Test2_SERVICE test2_SERVICE;
That means that the interface wants to use the bean for the implementation...
So just remove/change the #Qualifier("Test2_SERVICE") or change the name of the #Service("Test2_SERVICE")
How to autowire annotation qualifiers and how to name autodetected components
I am using apache commons httpclient 4.3.x along with spring3. I am trying to wire up a connectionpool with it's associated socketconfig instance.
http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/impl/conn/PoolingHttpClientConnectionManager.html
http://hc.apache.org/httpcomponents-core-ga/httpcore/apidocs/org/apache/http/config/SocketConfig.html?is-external=true
My code looks like this:
<bean id="socketConfig" class="org.apache.http.config.SocketConfig" factory-method="custom" init-method="build">
<property name="soTimeout" value="60000"/>
<property name="soLinger" value="5" />
</bean>
<bean name="poolingHttpConnectionManager" class="org.apache.http.impl.conn.PoolingHttpClientConnectionManager" depends-on="socketConfig">
<property name="maxTotal" value="20" />
<property name="defaultMaxPerRoute" value="20" />
<property name="defaultSocketConfig" ref="socketConfig" />
</bean>
However, this is not working. The instance type that is used to setDefaultSocketConfig() on PoolingHttpClientConnectionManager is of type SocketConfig.Builder instead of SocketConfig.
What I want to have happen is as follows:
SocketConfig config = SocketConfig.custom()
.setSoTimeout(60000)
.setSoLinger(5)
.build()
So, I expect that the socketConfig bean type should be a SocketConfig instance, not a SocketConfig.Builder instance.
As per spring docs, I thought this should work.
http://docs.spring.io/spring/docs/3.0.x/spring-framework-reference/htmlsingle/spring-framework-reference.html#beans-factory-class-static-factory-method
is there anything I am doing wrong? Or is this just not supported in spring?
It turns out that the socketconfig builder instance is not designed to work with spring very well.
I had to use a spring beanfactory implementation to create the instance.
The bean class:
import org.apache.http.config.SocketConfig;
import org.springframework.beans.factory.FactoryBean;
public class SocketConfigFactoryBean implements FactoryBean<SocketConfig> {
int soLinger;
int soTimeout;
public SocketConfig getObject() throws Exception {
return SocketConfig.custom()
.setSoLinger(soLinger)
.setSoTimeout(soTimeout)
.build();
}
public Class<?> getObjectType() {
return SocketConfig.class;
}
public boolean isSingleton() {
return true;
}
public int getSoLinger() {
return soLinger;
}
public void setSoLinger(int soLinger) {
this.soLinger = soLinger;
}
public int getSoTimeout() {
return soTimeout;
}
public void setSoTimeout(int soTimeout) {
this.soTimeout = soTimeout;
}
}
The bean definition
<bean name="poolingHttpConnectionManager" class="org.apache.http.impl.conn.PoolingHttpClientConnectionManager">
<property name="maxTotal" value="20" />
<property name="defaultMaxPerRoute" value="20" />
<property name="defaultSocketConfig">
<bean class="org.apache.http.config.SocketConfig" factory-method="custom" init-method="build">
<bean class="com.ex.spring.beans.factory.SocketConfigFactoryBean">
<property name="soTimeout" value="60000"/>
<property name="soLinger" value="5" />
</bean>
</property>
</bean>
I was able to achieve it by doing the next configuration in spring:
<bean id="socketConfig" class="org.apache.http.config.SocketConfig" factory-method="custom">
<property name="soTimeout" value="1000" />
<property name="soLinger" value="5" />
</bean>
<bean name="poolingHttpConnectionManager" class="org.apache.http.impl.conn.PoolingHttpClientConnectionManager">
<property name="maxTotal" value="20" />
<property name="defaultMaxPerRoute" value="20" />
<property name="defaultSocketConfig">
<bean factory-bean="socketConfig" factory-method="build" />
</property>
</bean>
I have two spring profiles: development and production.
There should be a common properties file (placed in classpath:properties/common/*.properties) which will be overridden by the profile's properties file (placed in classpath:properties/development/*.properties.
This is my context config snippet to clarify my intention:
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="packagesToScan" value="com.example.entities.*" />
<property name="hibernateProperties" ref="hibernateProperties" />
</bean>
<beans profile="development">
<context:property-placeholder location="classpath:properties/development/jdbc.properties" />
<bean id="hibernateProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="ignoreResourceNotFound" value="true" />
<property name="location" value="classpath:properties/development/hibernate.properties" />
</bean>
</beans>
<beans profile="production">
<context:property-placeholder location="classpath:properties/production/jdbc.properties" />
<bean id="hibernateProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="ignoreResourceNotFound" value="true" />
<property name="location" value="classpath:properties/production/hibernate.properties" />
</bean>
</beans>
Currently there's no common properties somewhere. How to merge a common properties file with the one in each profile for both jdbc.properties and hibernate.properties?
I've used JavaConfig for this:
#Configuration
#Profile("development")
public class DevelopmentConfig {
public #Bean String profile() {
return "development";
}
}
#Configuration
#Profile("production")
public class ProductionConfig {
public #Bean String profile() {
return "production";
}
}
public class PropertyUtils {
public static Properties getProperties(String profile, String filename) throws IOException {
Properties ret = new Properties();
ClassPathResource resource;
resource = new ClassPathResource("properties/common/" + filename + ".properties");
ret.putAll(PropertiesLoaderUtils.loadProperties(resource));
resource = new ClassPathResource("properties/" + profile + "/" + filename + ".properties");
if (resource.exists()) {
ret.putAll(PropertiesLoaderUtils.loadProperties(resource));
}
return ret;
}
}
#Configuration
public class MainConfig {
private #Autowired String profile;
// Here you can use: PropertyUtils.getProperties(profile, "jdbc"))
}
This should get you started
<bean id="allProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="singleton" value="true"/>
<property name="ignoreResourceNotFound" value="true"/>
<property name="locations">
<list>
<value>classpath*:default.properties</value>
<value>classpath*:overrides.properties</value>
<value>file:${APP_HOME}/**/*.properties</value>
</list>
</property>
</bean>
I would like to register XStream JavaBeanConverter in Spring config. I see test examples where JavaBeanConverter is registered as below.
xstream.registerConverter(new JavaBeanConverter(xstream.getClassMapper(), "class"), -20);
But how do I set it up in my spring config.
Currently my spring config is setup as below
<bean
class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<property name="order" value="1" />
<property name="mediaTypes">
<map>
<entry key="json" value="application/json" />
<entry key="xml" value="application/xml" />
</map>
</property>
<property name="defaultViews">
<list>
<bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" >
<property name="renderedAttributes" value="document" />
</bean>
<bean class="org.springframework.web.servlet.view.xml.MarshallingView">
<property name="marshaller">
<bean class="org.springframework.oxm.xstream.XStreamMarshaller" p:autodetectAnnotations="true">
<property name="encoding" value="UTF-8" />
</bean>
</property>
<property name="contentType" value="application/xml;charset=UTF-8" />
<property name="modelKey" value="person" />
</bean>
</list>
</property>
<property name="ignoreAcceptHeader" value="true" />
</bean>
I am using xstream annotation for Alias and Converter.
I tried extending my custom converter from JavaBeanConverter. It serializes normal properties fine but I want it to serialize getXXX method.
public class MyCustomConverter extends JavaBeanConverter {
public MyCustomConverter(Mapper mapper) {
super(mapper);
}
#Override... marshal.. unmarshal... canConvert methods...
}
Thanks a lot!
Add this to your marshaller bean definition:
<property name="converters">
<util:list>
<bean class="com.MyBeanConverter">
<constructor-arg value="com.MyBean" index="0" />
</bean>
</util:list>
</property>
And then, define the following class that will implement the conversion
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.converters.javabean.JavaBeanConverter;
public class MyBeanConverter extends JavaBeanConverter {
public MyBeanConverter(Class<?> theClass) {
super(new XStream().getMapper(), theClass);
}
}
i need to use bean from spring application context not in a spring managed bean, so i do next: annotate bean with #Service annotation, so instance of bean created during spring loading.
<bean id="customRevisionListener" class="ru.csbi.registry.services.impl.envers.CustomRevisionListener" />
This instance is ApplicationContextAware, so application context is injected in this bean instance and i save it to static variable:
#Service
public class CustomRevisionListener implements EntityTrackingRevisionListener, ApplicationContextAware {
private static ApplicationContext applicationContext;
private ModelInformationService modelInformationService;
#Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
CustomRevisionListener.applicationContext = applicationContext;
}
private ModelInformationService getModelInformationService() {
if (modelInformationService == null) {
modelInformationService = applicationContext.getBean(ModelInformationService.class);
}
// TransactionProxyFactoryBean
return modelInformationService;
}
After that another instance of CustomRevisionListener created in not spring context(hibernate envers context). Here i use static variable to receive spring applicationContext
after that i'm getting beans from application context:
private ModelInformationService getModelInformationService() {
if (modelInformationService == null) {
modelInformationService = applicationContext.getBean(ModelInformationService.class);
}
the problem is that this bean has all #Autowired properties injected correctly:
#Service
public class ModelInformationServiceImpl implements ModelInformationService {
#Autowired
private EntityChangeService entityChangeService; // injected correctly
#Autowired
private PropertyService propertyService; // injected correctly
#Autowired
private ru.csbi.registry.services.reflection.HibernateDomainService hibernateService; // injected correctly
, but they are simple instances of java classes not Proxies supporting #Transactional annotation, which they are for my regular spring code:
getModelInformationService().getClass().getName() is "ru.csbi.registry.services.impl.envers.ModelInformationServiceImpl"
and must be something like
$Proxy71
How to get transaction supporting proxies, which spring genereates for example when injecting beans in #Controller, in bean not managed by spring?
i'm using next spring config:
<bean id="dataSource" class="org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy">
<constructor-arg ref="lazyConnectionDataSourceProxy"/>
</bean>
<bean id="lazyConnectionDataSourceProxy" class="org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy">
<property name="targetDataSource">
<ref local="dataSourceTarget" />
</property>
</bean>
<bean id="dataSourceTarget" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${ds.driver}" />
<property name="url" value="${ds.url}" />
<property name="username" value="${ds.user}" />
<property name="password" value="${ds.password}" />
<property name="initialSize" value="${ds.initialSize}" />
<property name="maxActive" value="${ds.maxActive}" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<!--property name="entityInterceptor">
<bean class="ru.csbi.registry.utils.audit.AuditLogInterceptor">
<property name="sessionFactory" ref="auditSessionFactory" />
</bean>
</property-->
<property name="dataSource" ref="dataSource" />
<property name="lobHandler" ref="oracleLobHandler" />
<property name="packagesToScan" value="ru.csbi.registry.domain" />
<property name="hibernateProperties">
<bean id="hibernatePropertiesFactoryBean" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<property name="locations">
<list>
<value>file:${realtyregistry.settings.path}/hibernate-config.properties</value>
</list>
</property>
</bean>
</property>
<property name="eventListeners">
<map>
<entry key="post-insert" value-ref="auditEventListener" />
<entry key="post-update" value-ref="auditEventListener" />
<entry key="post-delete" value-ref="auditEventListener" />
<entry key="pre-collection-update" value-ref="auditEventListener" />
<entry key="pre-collection-remove" value-ref="auditEventListener" />
<entry key="post-collection-recreate" value-ref="auditEventListener" />
</map>
</property>
</bean>
<bean id="auditEventListener" class="org.hibernate.envers.event.AuditEventListener" />
<bean id="persistenceManagerHibernate" class="ru.csbi.registry.utils.PersistenceManagerHibernate">
<property name="sessionFactory" ref="sessionFactory" />
</bean>