dubbo入門之springmvc+dubbo
阿新 • • 發佈：2018-11-19
1、新建maven專案：
2、修改pom.xml檔案，新增依賴：
<?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.ym</groupId> <artifactId>testdubbodemo</artifactId> <version>1.0-SNAPSHOT</version> <modules> <module>service</module> <module>serviceimpl</module> <module>testweb</module> </modules> <packaging>pom</packaging> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.0.8.RELEASE</version> </dependency> <!--引入dubbo--> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.9</version> <exclusions> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring</artifactId> </exclusion> </exclusions> </dependency> <!--引入zookeeper--> <dependency> <groupId>com.101tec</groupId> <artifactId>zkclient</artifactId> <version>0.10</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.25</version> </dependency> </dependencies> <build> <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --> <plugins> <plugin> <artifactId>maven-clean-plugin</artifactId> <version>3.0.0</version> </plugin> <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging --> <plugin> <artifactId>maven-resources-plugin</artifactId> <version>3.0.2</version> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.7.0</version> </plugin> <plugin> <artifactId>maven-surefire-plugin</artifactId> <version>2.20.1</version> </plugin> <plugin> <artifactId>maven-jar-plugin</artifactId> <version>3.0.2</version> </plugin> <plugin> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> <plugin> <artifactId>maven-deploy-plugin</artifactId> <version>2.8.2</version> </plugin> </plugins> </pluginManagement> </build> </project>
3、建立遠端介面模組，這個模組用於客戶端和介面實現呼叫，如controller，serviceImpl；
建立介面：
com.ym;
TestService {
String getData(String name);
}
4、建立介面實現模組：
實現遠端介面：
com.ym.service.impl;
com.ym.TestService;
org.springframework.stereotype.;
()
TestServiceImpl TestService {
String getData(String name) {
+ name;
}
}在spring配置檔案中，配置dubbo相關配置項：
<?<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
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://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-5.0.8.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">
<!--掃描註解-->
<context:component-scan base-package="com.ym"/>
<!--使用dubbo的另外一個原因，可以和spring無縫整合-->
<!--
目的：找到註冊中心，告訴他我是誰，埠是多少
-->
<!--1、配置別名，目的是在後臺看到這個服務的別名，好區分到底是誰-->
<dubbo:application name="test1"/>
<!--2、配置註冊中心
address表示註冊中心的地址，protocol表示註冊中心的協議格式
-->
<dubbo:registry address="192.168.1.224:2181" protocol="zookeeper"/>
<!--配置要註冊的服務-->
<dubbo:service interface="com.ym.TestService" ref="testServiceImpl" timeout="6000"/>
<!--配置埠，因為消費者要想連線服務提供者，必須知道ip和埠，ip在服務註冊到Zookeeper的時候就已經知道了-->
<dubbo:protocol name="dubbo" port="12345"/>
</beans>
配置web.xml檔案
Archetype Created Web Application contextConfigLocation classpath:applicationContext.xml org.springframework.web.context.ContextLoaderListener
5、啟動介面模組：clean tomcat7:run
6、開啟dubbo控制檯檢視服務資訊
7、建立客戶端模組
修改pom.xml檔案：
<?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"> <parent> <artifactId>testdubbodemo</artifactId> <groupId>com.ym</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>testweb</artifactId> <packaging>war</packaging> <name>testweb Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.ym</groupId> <artifactId>service</artifactId> <version>1.0-SNAPSHOT</version> </dependency> </dependencies> <build> <finalName>testweb</finalName> <plugins> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.2</version> <configuration> <port>9001</port> <path>/</path> </configuration> </plugin> </plugins> </build> </project>
配置springmvc檔案：
<?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.xml
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">
<context:component-scan base-package="com.ym"/>
<!--查詢遠端服務，找到對應的註冊中心，我需要什麼型別的服務-->
<!--1、配置應用名稱，我我是誰-->
<dubbo:application name="yangmi"/>
<!--2、配置註冊中心，我要連線的-->
<dubbo:registry address="192.168.1.224:2181" protocol="zookeeper"/>
<!--3、查×××，告訴註冊中心我需要啥-->
<dubbo:reference interface="com.ym.TestService" id="testService"/>
</beans>
修改web.xml:
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
8、啟動testweb,並觀察dubbo控制檯；