基於javaConfig的springDataJpa+dubbo+springMvc搭建(一)

很遺憾dubbo的幾個創始人好像不維護dubbo了，最近有些人更新到了2.8.4:http://code.taobao.org/p/dubbox/src/trunk/dubbox/
dubbo的官網:http://dubbo.io/

此maven項目分三個子模塊:sdk,app和web.其中sdk主要放一些公共的文件,app和web都依賴sdk.
一.在sdk模塊:聲明一個接口

package org.exam.sdk.service;
import org.exam.sdk.domain.User;
/**
 * Created by xin on 15.12.27.
 */
public interface UserService {
    User save(User user);
}

二.在app模塊:
1.實現這個接口(在這裏不贅述spring data jpa的使用)

package org.exam.app.service;
import com.alibaba.dubbo.config.annotation.Service;
import org.exam.sdk.domain.User;
import org.exam.app.repository.UserRepository;
import org.exam.sdk.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
/**
 * Created by xin on 15.12.27.
 */
@Service
public class UserServiceImpl implements UserService {
    @Autowired
    private UserRepository userRepository;
    @Override
    public User save(User user){
        return userRepository.save(user);
    }
}

2.寫單元測試

package org.exam.app.service;
import org.exam.app.config.AppConfig;
import org.exam.sdk.base.ObjectId;
import org.exam.sdk.domain.User;
import org.exam.sdk.service.UserService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.annotation.Rollback;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.AnnotationConfigContextLoader;
import org.springframework.transaction.annotation.Transactional;
/**
 * Created by xin on 2015/12/27.
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(loader=AnnotationConfigContextLoader.class,classes={AppConfig.class})
@Transactional(transactionManager = "transactionManager")
public class UserServiceTest {
    @Autowired
    private UserService userService;
    @Test
    @Rollback(false)
    public void testInitData(){
        User user=new User();
        user.setId(new ObjectId().toString());
        user.setUsername("username");
        user.setPassword("password");
        user.setEnable(true);
        userService.save(user);
    }
}

三.在web模塊:
1.單元測試,看一下userService是否注入成功

package org.exam.web.service;
import com.alibaba.dubbo.config.annotation.Reference;
import org.exam.sdk.service.UserService;
import org.exam.web.config.AppConfig;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
 * Created by xin on 2015/12/27.
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes={AppConfig.class})
public class UserServiceTest {
    @Reference
    private UserService userService;
    @Test
    public void testSave(){
        System.out.println("userService = " + userService);
    }
}

2.在controller使用

package org.exam.web.controller;
import com.alibaba.dubbo.config.annotation.Reference;
import org.exam.sdk.domain.User;
import org.exam.sdk.service.UserService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("user")
public class UserController {
    @Reference
    private UserService userService;
    @RequestMapping(value = "save")
    public String save(User user) {
        if (user.getId()==null){
            user.setId(new Object().toString());
        }
        userService.save(user);
        return "user/test";
    }
}

四.再看看最關鍵的配置:
1.app的主要配置

package org.exam.app.config;

import com.alibaba.dubbo.config.ApplicationConfig;
import com.alibaba.dubbo.config.RegistryConfig;
import com.alibaba.dubbo.config.spring.AnnotationBean;
import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.Database;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;
import java.beans.PropertyVetoException;

/**
 * Created by xin on 15.12.27.
 */
@Configuration
@PropertySource("classpath:config.properties")
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = {"org.exam.app.repository"})
public class AppConfig implements EnvironmentAware {
    private Environment env;

    @Override
    public void setEnvironment(Environment environment) {
        env = environment;
    }
    /*與<dubbo:annotation/>相當.提供方掃描帶有@com.alibaba.dubbo.config.annotation.Service的註解類*/
    @Bean
    public static AnnotationBean annotationBean() {
        AnnotationBean annotationBean = new AnnotationBean();
        annotationBean.setPackage("org.exam.app.service");//所以含有@com.alibaba.dubbo.config.annotation.Service的註解類都應在此包中,多個包名可以使用英文逗號分隔.
        return annotationBean;
    }
    /*與<dubbo:application/>相當.*/
    @Bean
    public ApplicationConfig applicationConfig() {
        ApplicationConfig applicationConfig = new ApplicationConfig();
        applicationConfig.setLogger("slf4j");
        applicationConfig.setName(env.getProperty("dubbo.applicationName"));
        return applicationConfig;
    }
    /*與<dubbo:registry/>相當*/
    @Bean
    public RegistryConfig registryConfig() {
        RegistryConfig registryConfig = new RegistryConfig();
        registryConfig.setAddress(env.getProperty("dubbo.registryAddress"));
        return registryConfig;
    }
    /*與<dubbo:protocol/>相當*/
    @Bean
    public ProtocolConfig protocolConfig(){
        ProtocolConfig protocolConfig=new ProtocolConfig("dubbo",20880);
        protocolConfig.setSerialization("java");//默認爲hessian2,但不支持無參構造函數類,而這種方式的效率很低
        return protocolConfig;
    }
    @Bean(destroyMethod = "close")
    public DataSource dataSource() {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        try {
            dataSource.setDriverClass(env.getProperty("db.driverClass"));
        } catch (PropertyVetoException e) {
            e.printStackTrace();
        }
        dataSource.setJdbcUrl(env.getProperty("db.jdbcUrl"));
        dataSource.setUser(env.getProperty("db.user"));
        dataSource.setPassword(env.getProperty("db.password"));
        dataSource.setInitialPoolSize(Integer.valueOf(env.getProperty("db.initialPoolSize")));
        dataSource.setAcquireIncrement(Integer.valueOf(env.getProperty("db.acquireIncrement")));
        dataSource.setMinPoolSize(Integer.valueOf(env.getProperty("db.minPoolSize")));
        dataSource.setMaxPoolSize(Integer.valueOf(env.getProperty("db.maxPoolSize")));
        dataSource.setMaxIdleTime(Integer.valueOf(env.getProperty("db.maxIdleTime")));
        dataSource.setIdleConnectionTestPeriod(Integer.valueOf(env.getProperty("db.idleConnectionTestPeriod")));
        return dataSource;
    }

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
        jpaVendorAdapter.setDatabase(Database.valueOf(env.getProperty("jpa.database")));
        jpaVendorAdapter.setGenerateDdl(Boolean.parseBoolean(env.getProperty("jpa.generateDdl")));
        jpaVendorAdapter.setShowSql(Boolean.parseBoolean(env.getProperty("jpa.showSql")));
        LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
        emf.setDataSource(dataSource());
        emf.setPackagesToScan("org.exam.sdk.domain");
        emf.setJpaVendorAdapter(jpaVendorAdapter);
        return emf;
    }

    @Bean
    public PlatformTransactionManager transactionManager() {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
        return transactionManager;
    }

}

app模塊的config.properties

#DATABASE START
db.driverClass=com.mysql.jdbc.Driver
db.jdbcUrl=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8
db.user=root
db.password=123456
#db.driverClass=oracle.jdbc.driver.OracleDriver
#db.jdbcUrl=jdbc:oracle:thin:@127.0.0.1:1521:orcl
#db.user=ieco2o
#db.password=ieco2o

db.initialPoolSize=5
db.acquireIncrement=3
db.minPoolSize=3
db.maxPoolSize=50
db.maxIdleTime=60
db.idleConnectionTestPeriod=120
#DATABASE END

#JPA START
jpa.generateDdl=true
jpa.showSql=true
#DEFAULT,DB2,DERBY,H2,HSQL,INFORMIX,MYSQL,ORACLE,POSTGRESQL,SQL_SERVER,SYBASE
jpa.database=MYSQL
#JPA END

#DUBBO START
dubbo.applicationName=provider-mall-app
dubbo.registryAddress=zookeeper://127.0.0.1:2181
#DUBBO END

2.web的主要配置

package org.exam.web.config;

import com.alibaba.dubbo.config.ApplicationConfig;
import com.alibaba.dubbo.config.RegistryConfig;
import com.alibaba.dubbo.config.spring.AnnotationBean;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;

/**
 * Created by xin on 15/12/27.
 */
@Configuration
@PropertySource("classpath:config.properties")
@ComponentScan(basePackages = "org.exam.web.controller")
public class AppConfig implements EnvironmentAware {
    private Environment env;
    @Override
    public void setEnvironment(Environment environment) {
        env = environment;
    }

    /*與<dubbo:annotation/>相當.提供方掃描帶有@com.alibaba.dubbo.config.annotation.Reference的註解類*/
    @Bean
    public static AnnotationBean annotationBean() {
        AnnotationBean annotationBean = new AnnotationBean();
        annotationBean.setPackage("org.exam.web.service,org.exam.web.controller");
        return annotationBean;
    }
    /*與<dubbo:application/>相當.*/
    @Bean
    public ApplicationConfig applicationConfig() {
        ApplicationConfig applicationConfig = new ApplicationConfig();
        applicationConfig.setLogger("slf4j");
        applicationConfig.setName(env.getProperty("dubbo.applicationName"));
        return applicationConfig;
    }
    /*與<dubbo:registry/>相當*/
    @Bean
    public RegistryConfig registryConfig() {
        RegistryConfig registryConfig = new RegistryConfig();
        registryConfig.setAddress(env.getProperty("dubbo.registryAddress"));
        return registryConfig;
    }
    /*與<dubbo:protocol/>相當*/
    @Bean
    public ProtocolConfig protocolConfig(){
        ProtocolConfig protocolConfig=new ProtocolConfig("dubbo",20880);
        protocolConfig.setSerialization("java");//默認爲hessian2,但不支持無參構造函數類,而這種方式的效率很低
        return protocolConfig;
    }
     /*dubbo end*/
}

web模塊的config.properties

#DUBBO START
dubbo.applicationName=consumer-mall-web
dubbo.registryAddress=zookeeper://127.0.0.1:2181
#DUBBO END

五.其它不重要的,就省略,過行測試.先啓動zookeeper(即使開發環境,註冊中心也不使用廣播,因爲不穩定),再啓動app的單元測試是否正常,再啓動App,再啓動web的單元測試是否正常,最後測試controller是否注入成功.

源碼下載:http://download.csdn.net/detail/xiejx618/9383015