一.今日完成

1.使用tuscany在本地做分布式,分离service和web

(1)SCA Java运行时由core和extension组成。Core本质上来说是一个多VM的wiring引擎。该引擎使用IOC(控制反转)和DI(依赖注入)原则来连接组件。

　　Core

　　Core在性能方面是简单而有限的。它将功能单元连接在一起，并提供可以和extension交互的SPI机制。例如象服务发现，可靠性，对传输协议的支持等特性都是通过extension来做的。

　　Extension

　　Extension增强SCA运行时的功能。Extesion类型不是固定的。而core则是通过提供对extension模块开放支持来使得设计尽量灵活。

　　组件实现类型，例如：Spring, Groovy 和Javascript

　　绑定类型，比如：Axis, CXF ,AMQP ,ActiveMQ, JXTA

　　数据绑定类型，比如：JAXB, SDO ,XmlBean

　　接口绑定类型，比如：WSDL, Java

(2)项目结构如下:

serviceX和serviceY中引入的spring依赖和tuscany sca依赖版本分别为3.0.5.RELEASE和2.0.1.为引入tuscany sca,需要在每个service子模块中额外增加两个配置文件

spring-tusacny.xml

<?xml version= "1.0" encoding ="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:sca="http://www.springframework.org/schema/sca"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans.xsd
     http://www.springframework.org/schema/sca
     http://www.osoa.org/xmlns/sca/1.0/spring-sca.xsd" >

    <sca:service name="StudentServiceX" type="com.jnshu.serviceImpl.StudentService" target="StudentServiceX"/>
    <bean id="StudentServiceX" name="StudentServiceX" class="com.jnshu.serviceImpl.StudentServiceimpl"/>
    <import resource="springConfig.xml"/>
</beans>

studentserviceX.xml

<?xml version="1.0" encoding="UTF-8"?>
<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200912"
           xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.1"
           xmlns:xsd="http://www.w3.org/2001/XMLSchema"
           name="UserService"  targetNamespace="http://StudentService">

    <component name="StudentComponent">
        <implementation.spring location="spring-tuscany.xml"/>
        <service name="StudentServiceX" >
            <tuscany:binding.rmi  uri="rmi://127.0.0.1:9090/StudentSrviceX"/>
        </service>
    </component>
</composite>

(3)为了方便在本地部署服务,直接写一个测试类,启动rmi端口服务

public class ServiceXtest {

    private static Logger logger = LogManager.getLogger(ServiceXtest.class);

    public static void main(String[ ] args) throws IOException, NotBoundException {
        Node node = NodeFactory.newInstance().createNode("StudentServiceX.composite");
        node.start();
        logger .info("serviceX启动");
        StudentService studentService = (StudentService) Naming.lookup("//127.0.0.1:9090/StudentServiceX");
        logger .info("查询所有用户信息");
        List<Student> stuList = studentService.getAllStu();
        logger .info(stuList);
    }
}

(4)运行test#main();时报错,

Exception in thread "main" java.lang.IllegalStateException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'StudentServiceX': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.jnshu.dao.StudentDao com.jnshu.serviceImpl.StudentServiceimpl.studentDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.jnshu.dao.StudentDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

计划明天根据报错信息解决bug,提交任务9.

二.明日计划

1.梳理HTTP相关知识点,准备小课堂

2.调试代码,提交任务9

三.遇到问题

暂无.

四.收获

以上.

进度:今天提交任务9,比原计划延迟两天.