将项目拆分搭建dubbo项目（二）dubbo项目搭建实例与应用

- 日理万妓 2022-05-31 14:40 251阅读 0赞

## dubbo项目的配置 ##

根据上一篇文章，我们已经创建好两项目一个xxx-common一个xxx-service并创建好相应的目录结构

开始配置配置文件内容

一、配置pom.xml 文件，

（1）payment-common的pom.xml文件配置

配置上使用的父项目或者建立上jar包依赖即可

（2）payment-service的pom.xml文件配置

配置上除了配置父项目以外还要配置对payment-common项目的依赖因为service要使用到common中的实体和接口工具类等。还有很重要的一个配置打包

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.dxl.payment</groupId>
        <artifactId>payment-service</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        <parent>
            <groupId>org.uz.dxt</groupId>
            <artifactId>manager</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </parent>
    
        <dependencies>
            <dependency>
                <groupId>com.dxl.payment</groupId>
                <artifactId>payment-common</artifactId>
                <version>1.0-SNAPSHOT</version>
            </dependency>
    
            <dependency>
                <groupId>com.dxl.util</groupId>
                <artifactId>common-util</artifactId>
                <version>0.0.1-SNAPSHOT</version>
            </dependency>
    
        </dependencies>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-shade-plugin</artifactId>
                    <version>2.4.1</version>
                    <executions>
                        <execution>
                            <phase>package</phase>
                            <goals>
                                <goal>shade</goal>
                            </goals>
                            <configuration>
                                <filters>
                                    <filter>
                                        <artifact>*:*</artifact>
                                        <excludes>
                                            <exclude>META-INF/*.SF</exclude>
                                            <exclude>META-INF/*.DSA</exclude>
                                            <exclude>META-INF/*.RSA</exclude>
                                        </excludes>
                                    </filter>
                                </filters>
                                <transformers>
                                    <transformer
                                            implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                        <mainClass>com.dxl.payment.main.Application</mainClass>
                                    </transformer>
                                    <transformer
                                            implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                        <resource>META-INF/spring.handlers</resource>
                                    </transformer>
                                    <transformer
                                            implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                        <resource>META-INF/spring.schemas</resource>
                                    </transformer>
                                </transformers>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>
    </project>

二、配置payment-service项目的resources中的配置文件

一般的ssm项目配置文件

1、配置applicationContext.xml 文件

特殊地方引入applicationContext\_dubbo\_zookeeper.xml

2、配置jdbc.properties

3、mybatis.xml

4、log4j.properties

5、spring-mybatis-transaction.xml

dubbo    atomikos分布式数据库事务组件相关配置文件 在applicationContext.xml中引用

1 applicationContext\_dubbo\_zookeeper.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:dubbo="http://code.alibabatech.com/schema/dubbo"
           xsi:schemaLocation="
    		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    		http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
        
        <dubbo:application name="Adminuser" />
        
        
        <dubbo:registry protocol="zookeeper"  address="192.168.10.14:2181,192.168.10.17:2181,192.168.10.18:2181" />
        
        
        
        
        <dubbo:protocol name="dubbo" port="20891" />
        
        
        <dubbo:service interface="com.dxl.payment.service.payment.TRepaymentService" ref="tRepaymentService" timeout="300000"/>
    </beans>

<dubbo:service interface="com.dxl.payment.service.payment.TRepaymentService" ref="tRepaymentService" timeout="300000"/>

这句话是代表暴露给外部的接口。interface是payment-common项目中定义的接口

ref是payment-service项目接口实现类的的名称在@Service("tRepaymentService")中声明的名称

示例：

payment-common的接口

package com.dxl.payment.service.payment;
    import com.dxl.payment.model.payment.TRepayment;
    import com.dxl.payment.service.base.BaseService;
    import java.util.List;
    
    public interface TRepaymentService extends BaseService<TRepayment> {
    	
    	public List<TRepayment>  selectAllRepayment(TRepayment tRepayment);
    
    }

payment-service的接口实现类

package com.dxl.payment.service.payment.impl;
    import com.dxl.payment.dao.payment.TRepaymentMapper;
    import com.dxl.payment.model.payment.TRepayment;
    import com.dxl.payment.service.TipsService;
    import com.dxl.payment.service.base.impl.BaseServiceImpl;
    import com.dxl.payment.service.payment.TRepaymentService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    import java.text.Format;
    import java.text.SimpleDateFormat;
    import java.util.*;
    
    @Service("tRepaymentService")
    public class TRepaymentServiceImpl extends BaseServiceImpl<TRepayment>
    		implements TRepaymentService, TipsService<TRepayment> {
    
    	@Autowired
    	private TRepaymentMapper tRepaymentMapper;
    	
    	
    	private Format fmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    
    	@Override
    	public boolean setTips(TRepayment t) {
    		// TODO Auto-generated method stub
    		return false;
    	}
    
    	@Override
    	public boolean removeTips(TRepayment t) {
    		// TODO Auto-generated method stub
    		return false;
    	}
    
    
    	@Override
    	public List<TRepayment> selectAllRepayment(TRepayment tRepayment) {
    		return  tRepaymentMapper.selectAllRepayment(tRepayment);
    	}
    }

dao层与sql正常写即可

在applicationContext\_dubbo\_zookeeper.xml中暴露出接口信息

<dubbo:service interface="com.dxl.payment.service.payment.TRepaymentService" ref="tRepaymentService" timeout="300000"/>

payment-common与payment-service相当于生产者。而其他web项目调用相当于消费者

## 使用dubbo项目的方法： ##

1首先必须确认dubbo项目已经暴露好接口

2在要调用dubbo项目的项目中配置spring-dubbo.xml

这里演示在其他项目的serivce中调用dubbo，由于web本身就对自身项目的service具有依赖关系所以此处将dubbo的配置文件放在service中。如果不想放在service可以直接在web中配置spring-dubbo.xml文件

spring-dubbo.xml

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
    	xmlns:mvc="http://www.springframework.org/schema/mvc" 
    	xmlns:context="http://www.springframework.org/schema/context"
    	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
    	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    	
    	xsi:schemaLocation="
    					http://www.springframework.org/schema/beans
    					http://www.springframework.org/schema/beans/spring-beans.xsd
    					http://www.springframework.org/schema/mvc
    					http://www.springframework.org/schema/mvc/spring-mvc.xsd
    					http://www.springframework.org/schema/context
            			http://www.springframework.org/schema/context/spring-context.xsd
            			http://code.alibabatech.com/schema/dubbo 
            			http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
    	
        
        <dubbo:application name="callphone-service123123"/>
    
    	
    	
    
    	
    	
    
    
    	
    	
    	 <dubbo:registry protocol="zookeeper" address="192.168.10.14:2181,192.168.10.17:2181,192.168.10.18:2181" check="false"/>
    	
    	 
            
    	<dubbo:reference id="tRepaymentService" interface="com.dxl.payment.service.payment.TRepaymentService" check="false"/>
    </beans>

配置好之后，将payment-common项目编译成jar包，并添加到要使用的项目中示例此处将jar包添加到service项目中和web项目张

测试时可直接加入项目，如果要发布生产，需要将dubbo的payment-common项目jar包放到私库中引用，这样就确保了其他项目只能查看到common中暴露的接口而看不到具体的实现编码，从而使项目和逻辑分离。独立维护。

spring-dubbo.xml中配置的

<dubbo:reference id="tRepaymentService" interface="com.dxl.payment.service.payment.TRepaymentService" check="false"/>

是dubbo的消费者。配置此处可以使调用的payment-service使用到jdbc数据库等。

3测试

编写controller方法

@RequestMapping("/testPaymentDubbo")
    	@ResponseBody
    	public void testPaymentDubbo(){
    		TRepayment tRepayment=new TRepayment();
    		tRepayment.setCompanyCode("ceshilvsuo");
    		List<TRepayment> list=tRepaymentService.selectAllRepayment(tRepayment);
    		for (TRepayment t:list) {
    			System.out.println(t.toString());
    		}
    	}

自己测试时手动启动payment-service中的main层的application类的main方法启动dubbo生产者服务

注意运行时要保证payment-service项目和payment-common项目都编译install一遍之后

![20180228115943866][]

dubbo生产者已经启动了

可以用postman直接测试接口是否可用，dubug查看运行。

测试通过即成功完成

[20180228115943866]: /images/20220531/1d97e1c5945745c0b9eae3c61febca4b.png