В этой части я продолжу демонстрировать интеграцию JSF, Guice и MyBatis. Пул соединений DBCP и база данных MYSQL используются на постоянном уровне. Посмотрите на часть 1 .
Интегрировать Google Guice с MyBatis
В предыдущем посте мы создали ServletContextListener. Теперь мы просто связываем BasicDataSourceProvider и JdbcTransactionFactory в методе contextInitialized.
GuiceContextListener.java
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package org.borislam; import java.util.Properties; import javax.servlet.ServletContext; import javax.servlet.ServletContextEvent; import javax.servlet.ServletContextListener; import org.apache.ibatis.transaction.jdbc.JdbcTransactionFactory; import org.apache.log4j.xml.DOMConfigurator; import org.borislam.mapper.StaffMapper; import org.borislam.service.SimpleService; import org.borislam.service.impl.SimpleServiceImpl; import org.mybatis.guice.MyBatisModule; import org.mybatis.guice.datasource.dbcp.BasicDataSourceProvider; import org.mybatis.guice.datasource.helper.JdbcHelper; import com.google.inject.Guice; import com.google.inject.Injector; import com.google.inject.Singleton; import com.google.inject.name.Names; public class GuiceContextListener implements ServletContextListener { public void contextDestroyed(ServletContextEvent servletContextEvent) { ServletContext servletContext = servletContextEvent.getServletContext(); servletContext.removeAttribute(Injector. class .getName()); } public void contextInitialized(ServletContextEvent servletContextEvent) { Injector injector = Guice.createInjector( new MyBatisModule() { @Override protected void initialize() { install(JdbcHelper.MySQL); environmentId( 'development' ); bindDataSourceProviderType(BasicDataSourceProvider. class ); bindTransactionFactoryType(JdbcTransactionFactory. class ); Names.bindProperties(binder(), createServerProperties()); //add singleton service class bind(SimpleService. class ).to(SimpleServiceImpl. class ).in(Singleton. class ); //add MyBatis Service class addMapperClass(StaffMapper. class ); } } ); ServletContext servletContext = servletContextEvent.getServletContext(); servletContext.setAttribute(Injector. class .getName(), injector); //log4J DOMConfigurator.configure( Thread.currentThread().getContextClassLoader() .getResource( 'log4j.xml' ) ); } protected static Properties createServerProperties() { Properties myBatisProperties = new Properties(); myBatisProperties.setProperty( 'JDBC.host' , 'localhost' ); myBatisProperties.setProperty( 'JDBC.port' , '3306' ); myBatisProperties.setProperty( 'JDBC.schema' , 'ttcoach' ); myBatisProperties.setProperty( 'JDBC.username' , 'root' ); myBatisProperties.setProperty( 'JDBC.password' , '' ); myBatisProperties.setProperty( 'JDBC.autoCommit' , 'false' ); return myBatisProperties; } } |
Подготовьте свой класс картографа MyBatis и класс модели
Staff.java
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package org.borislam.model; public class Staff { private String code; private String name; private String sex; private String tel; public String getCode() { return code; } public void setCode(String code) { this .code = code; } public String getName() { return name; } public void setName(String name) { this .name = name; } public String getSex() { return sex; } public void setSex(String sex) { this .sex = sex; } public String getTel() { return tel; } public void setTel(String tel) { this .tel = tel; } } |
StaffMapper.java
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package org.borislam.mapper; import java.util.List; import org.apache.ibatis.annotations.Result; import org.apache.ibatis.annotations.Results; import org.apache.ibatis.annotations.Select; import org.borislam.model.Staff; public interface StaffMapper { final String SELECT_ALL = 'SELECT * FROM FREELANCER' ; final String SELECT_BY_CODE = 'SELECT * FROM FREELANCER WHERE CODE = #{code}' ; /** * Returns the list of all Freelancer instances from the database. * @return the list of all Freelancer instances from the database. */ @Select (SELECT_ALL) @Results (value = { @Result (property= 'code' , column= 'code' ), @Result (property= 'name' , column= 'name' ), @Result (property= 'sex' , column= 'sex' ), @Result (property= 'tel' , column= 'tel' ) }) List<Staff> selectAll(); /** * Returns a Freelancer instance from the database. * @param id primary key value used for lookup. * @return A Freelancer instance with a primary key value equals to pk. null if there is no matching row. */ @Select (SELECT_BY_CODE) @Results (value = { @Result (property= 'code' , column= 'code' ), @Result (property= 'name' , column= 'name' ), @Result (property= 'sex' , column= 'sex' ), @Result (property= 'tel' , column= 'tel' ) }) Staff selectByCode(String code); } |
Подготовьте свой класс обслуживания
SimpleService.java
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package org.borislam.service; public interface SimpleService { public void doSimpleThing(); } |
SimpleServiceImpl.java
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package org.borislam.service.impl; import java.util.List; import org.borislam.mapper.StaffMapper; import org.borislam.model.Staff; import org.borislam.service.SimpleService; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.google.inject.Inject; public class SimpleServiceImpl implements SimpleService { private StaffMapper staffMapper; Logger logger = LoggerFactory.getLogger( this .getClass()); @Inject public void setStaffMapper(StaffMapper staffMapper) { this .staffMapper = staffMapper; } public void doSimpleThing() { List<Staff> staffList = staffMapper.selectAll(); logger.debug( 'size 1: ' + staffList.size()); Staff staff = staffMapper.selectByCode( 'c001' ); logger.debug( 'Code1 : ' + staff.getCode()); logger.debug( 'Name 1: ' + staff.getName());; } } |
Подготовьте страницу поддержки JSF и XML-страницу
TestBean.java
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package org.borislam.view; import javax.faces.bean.ManagedBean; import javax.faces.bean.SessionScoped; import javax.inject.Inject; import org.borislam.service.SimpleService; import org.borislam.service.TestService; @ManagedBean @SessionScoped public class TestBean extends BasePageBean { private SimpleService sService; @Inject public void setsService(SimpleService sService) { this .sService = sService; } public String doTest(){ System.out.println( 'test 1 inside backing bean...' ); sService.doSimpleThing(); return '' ; } public String doTest2(){ System.out.println( 'test 2 inside backing bean...' ); sService.doSimpleThing(); return '' ; } } |
index.xhtml
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< h:head > < style > .ui-widget, .ui-widget .ui-widget { font-size: 80% !important; } </ style > </ h:head > < h:body > < h:form > < h:outputText value = '#{msg[' website.title']}' /> < p:calendar id = 'popupButtonCal' showOn = 'button' /> < p:commandButton value = 'TEST2' action = '#{testBean.doTest}' /> < p:editor /> < br /> </ h:form > </ h:body > </ html > |
Это сделано! Теперь вы можете написать свое приложение JSF на основе этого фреймворка.
Ссылка: облегченная платформа веб-приложений: PrimeFaces (JSF) + Guice + MyBatis (ЧАСТЬ 2) от нашего партнера по JCG Бориса Лэма в блоге Programming Peaceful .