5.Dubbo之Spring XML配置
一、演示
1.包结构
2.dubbo-spring-xml
maven父工程
2.1pom.xml配置
<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>org.niugang</groupId> <artifactId>dubbo-spring-xml</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>pom</packaging> <modules> <module>dubbo-spring-xml-provider</module> <module>dubbo-spring-xml-customer</module> <module>dubbo-spring-xml-api</module> </modules> <properties> <!-- Generic properties --> <java.version>1.7</java.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <!-- Web --> <jsp.version>2.2</jsp.version> <jstl.version>1.2</jstl.version> <servlet.version>3.1.0</servlet.version> <!-- Spring --> <spring-framework.version>4.3.10.RELEASE</spring-framework.version> <!-- Logging --> <logback.version>1.0.13</logback.version> <slf4j.version>1.7.5</slf4j.version> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>javax</groupId> <artifactId>javaee-web-api</artifactId> <version>7.0</version> <scope>provided</scope> </dependency> <!-- Spring MVC --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring-framework.version}</version> </dependency> <!-- 其他web依赖 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>${jstl.version}</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>${servlet.version}</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>${jsp.version}</version> <scope>provided</scope> </dependency> <!-- Spring and Transactions --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring-framework.version}</version> </dependency> <!-- 使用SLF4J和LogBack作为日志 --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.16</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>${logback.version}</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-core</artifactId> <version>${logback.version}</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-access</artifactId> <version>${logback.version}</version> </dependency> <!--对json和xml格式的支持 --> <!-- <dependency> <groupId>com.fasterxml.jackson.dataformat</groupId> <artifactId>jackson-dataformat-xml</artifactId> <version>2.5.3</version> </dependency> --> <!--配置springmvc信息转化为json所需的json包 --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.6</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.6</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.8.6</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.8.6</version> </dependency> <!-- 非必需，可简化IO操作 --> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.3</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring-framework.version}</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring-framework.version}</version> <scope>test</scope> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.8.6</version> </dependency> <!--aspectj依赖 --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjtools</artifactId> <version>1.8.9</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.7.4</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!--dubbo --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.8</version> </dependency> <!--redis --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version> </dependency> </dependencies> </dependencyManagement> </project>
3.dubbo-spring-xml-api
对外暴露RPC接口模块
3.1pom.xml
<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> <parent> <groupId>org.niugang</groupId> <artifactId>dubbo-spring-xml</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>dubbo-spring-xml-api</artifactId> </project>
3.2Bean配置
package org.niugang.bean; /** * * @ClassName: DefaultBean * @Description:默认Bean * @author: niugang * @date: 2018年8月22日 下午5:30:27 * @Copyright: 863263957@qq.com. All rights reserved. * */ public class DefaultBean { private String str; private String methodName; private long timestamp; public String getStr() { return str; } public void setStr(String str) { this.str = str; } public String getMethodName() { return methodName; } public void setMethodName(String methodName) { this.methodName = methodName; } public long getTimestamp() { return timestamp; } public void setTimestamp(long timestamp) { this.timestamp = timestamp; } @Override public String toString() { return "DefaultBean [str=" + str + ", methodName=" + methodName + ", timestamp=" + timestamp + "]"; } }
3.3Service
package org.niugang.service; /** * * @ClassName: DefaultApiService * @Description:对外暴露API接口 * @author: niugang * @date: 2018年8月22日 下午5:27:21 * @Copyright: 863263957@qq.com. All rights reserved. * */ public interface DefaultApiService { /** * 默认方法 * @param str * @return */ String defaultMethod(String str); }
4.dubbo-spring-xml-provider
服务提供者
将dubbo-spring-xml-api 打成jar包dubbo-spring-xml-provider中。
4.1pom.xml
<?xml version="1.0"?> <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.niugang</groupId> <artifactId>dubbo-spring-xml</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>dubbo-spring-xml-provider</artifactId> <packaging>jar</packaging> <name>dubbo-spring-xml-provider</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>javax</groupId> <artifactId>javaee-web-api</artifactId> <scope>provided</scope> </dependency> <!-- Spring MVC --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> </dependency> <!-- 其他web依赖 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <scope>provided</scope> </dependency> <!-- Spring and Transactions --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> </dependency> <!-- 使用SLF4J和LogBack作为日志 --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-core</artifactId> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-access</artifactId> </dependency> <!--对json和xml格式的支持 --> <!-- <dependency> <groupId>com.fasterxml.jackson.dataformat</groupId> <artifactId>jackson-dataformat-xml</artifactId> <version>2.5.3</version> </dependency> --> <!--配置springmvc信息转化为json所需的json包 --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> </dependency> <!-- 非必需，可简化IO操作 --> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> </dependency> <!--aspectj依赖 --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjtools</artifactId> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <scope>test</scope> </dependency> <!--dubbo --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> </dependency> <!--redis --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> </dependency> <dependency> <groupId>org.niugang</groupId> <artifactId>dubbo-spring-xml-api</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>${java.version}</source> <target>${java.version}</target> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>2.3</version> <configuration> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> </plugins> </build> </project>
4.2service对外暴露接口实现类
package org.niugang.service; import java.util.ArrayList; import java.util.List; import java.util.Random; import org.niugang.bean.DefaultBean; /** * * @ClassName: DefaultDemoService * @Description:对外暴露接口实现类 * @author: niugang * @date: 2018年8月21日 下午8:18:29 * @Copyright: 863263957@qq.com. All rights reserved. * */ public class DefaultServiceImpl implements DefaultApiService { //模拟数据 public static List<DefaultBean> list = new ArrayList<DefaultBean>(); static { DefaultBean defaultBean = new DefaultBean(); defaultBean.setStr("1"); defaultBean.setMethodName("defaultMethod"); defaultBean.setTimestamp(System.currentTimeMillis()); list.add(defaultBean); DefaultBean defaultBean2 = new DefaultBean(); defaultBean2.setStr("2"); defaultBean2.setMethodName("defaultMethod2"); defaultBean2.setTimestamp(System.currentTimeMillis()); list.add(defaultBean2); DefaultBean defaultBean3 = new DefaultBean(); defaultBean3.setStr("3"); defaultBean3.setMethodName("defaultMethod3"); defaultBean3.setTimestamp(System.currentTimeMillis()); list.add(defaultBean); DefaultBean defaultBean4 = new DefaultBean(); defaultBean4.setStr("4"); defaultBean4.setMethodName("defaultMethod4"); defaultBean4.setTimestamp(System.currentTimeMillis()); list.add(defaultBean4); DefaultBean defaultBean5 = new DefaultBean(); defaultBean5.setStr("5"); defaultBean5.setMethodName("defaultMethod5"); defaultBean5.setTimestamp(System.currentTimeMillis()); list.add(defaultBean5); } @Override public String defaultMethod(String str) { Random random = new Random(); int nextInt = random.nextInt(6); String res = null; if (nextInt > 0) { DefaultBean defaultBean = list.get(nextInt - 1); res = defaultBean.getStr() + "#" + defaultBean.getMethodName() + "#" + defaultBean.getTimestamp() + "###^^^^^^^^^^^" + str + "^^^^^^^^^^^^"; } else { DefaultBean defaultBean = list.get(nextInt); res = defaultBean.getStr() + "#" + defaultBean.getMethodName() + "#" + defaultBean.getTimestamp() + "###^^^^^^^^^^^" + str + "^^^^^^^^^^^^"; } return res; } }
4.3application.xml配置
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:dubbo="http://dubbo.apache.org/schema/dubbo" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <import resource="provider.xml" /> <!--組件扫描 --> <context:component-scan base-package="org.niugang" /> <!--注解扫描 --> <mvc:annotation-driven /> </beans>
4.4provider.xml配置
dubbo配置
<?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"> <!-- http://dubbo.apache.org/schema/dubbo/dubbo.xsd 上面配置为这个一直报错，改为 http://code.alibabatech.com/schema/dubbo/dubbo.xsd --> <!--用于配置当前应用信息，不管该应用是提供者还是消费者 --> <dubbo:application name="hello-world-app" /> <!-- 用于配置连接注册中心相关信息 --> <dubbo:registry address="redis://localhost:6379" timeout="30000"> <!--配置redis连接参数 --> <!--具体参数配置见com.alibaba.dubbo.registry.redis.RedisRegistry.class --> <dubbo:parameter key="max.idle" value="10" /> <dubbo:parameter key="min.idle" value="5" /> <dubbo:parameter key="max.active" value="20" /> <dubbo:parameter key="max.total" value="100" /> </dubbo:registry> <!-- 用于配置提供服务的协议信息，协议由提供方指定，消费方被动接受 --> <dubbo:protocol name="dubbo" port="20880" accesslog="true" /> <!-- 实现类 --> <bean id="defaultService" class="org.niugang.service.DefaultServiceImpl" /> <!--用于暴露一个服务，定义服务的元信息，一个服务可以用多个协议暴露，一个服务也可以注册到多个注册中心 --> <dubbo:service interface="org.niugang.service.DefaultApiService" ref="defaultService" /> </beans>
redis注册源码见com.alibaba.dubbo.registry.redis.RedisRegistry.class
4.5web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2eehttp://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <!-- 上下文配置文件位置 --> <context-param> <param-name>contextConfigLocation</param-name> <!-- spring 配置文件所在位置，启动 spring 时会去该路径下查找该配置文件 --> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- spring 上下文监听器，初始化启动容器时启动 spring --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <!-- spring 核心转发器，拦截指定目录下的请求，分配到配置的拦截路径下处理 --> <servlet> <servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet </servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- spring 编码过滤器 --> <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <!-- 编码过滤器过滤的路径 --> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
5.dubbo-spring-xml-customer
服务消费者
需要引入dubbo-spring-xml-api.jar文件
5.1pom.xml
<?xml version="1.0"?> <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.niugang</groupId> <artifactId>dubbo-spring-xml</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>dubbo-spring-xml-customer</artifactId> <packaging>jar</packaging> <name>dubbo-spring-xml-customer</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>javax</groupId> <artifactId>javaee-web-api</artifactId> <scope>provided</scope> </dependency> <!-- Spring MVC --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> </dependency> <!-- 其他web依赖 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <scope>provided</scope> </dependency> <!-- Spring and Transactions --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> </dependency> <!-- 使用SLF4J和LogBack作为日志 --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-core</artifactId> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-access</artifactId> </dependency> <!--对json和xml格式的支持 --> <!-- <dependency> <groupId>com.fasterxml.jackson.dataformat</groupId> <artifactId>jackson-dataformat-xml</artifactId> <version>2.5.3</version> </dependency> --> <!--配置springmvc信息转化为json所需的json包 --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> </dependency> <!-- 非必需，可简化IO操作 --> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> </dependency> <!--aspectj依赖 --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjtools</artifactId> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> </dependency> <!--dubbo --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> </dependency> <!--redis --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> </dependency> <!--引入服务提供者 rpc接口--> <dependency> <groupId>org.niugang</groupId> <artifactId>dubbo-spring-xml-api</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>${java.version}</source> <target>${java.version}</target> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>2.3</version> <configuration> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> </plugins> <finalName>dubbo-spring-xml-customer</finalName> </build> </project>
5.1消费服务
package org.niugang.controller; import javax.annotation.Resource; import org.niugang.service.DefaultApiService; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; /** * * @ClassName: DemoConsumerController * @Description:web调用服务提供者对外暴露的rpc接口 * @author: niugang * @date: 2018年8月18日 上午9:41:30 * @Copyright: 863263957@qq.com. All rights reserved. * */ @RestController public class DemoConsumerController { /** * 引入服务提供者 */ @Resource(name = "defaultService") private DefaultApiService defaultService; @RequestMapping("/sayHello") public String sayHello(@RequestParam String name) { return defaultService.defaultMethod(name); } }
5.3applicationContentxt.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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:dubbo="http://dubbo.apache.org/schema/dubbo" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <import resource="classpath:consumer.xml" /> <!--組件扫描 --> <context:component-scan base-package="org.niugang" /> <!--注解扫描 --> <mvc:annotation-driven /> </beans>
5.4customer.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"> <!-- 消费方应用名，用于计算依赖关系，不是匹配条件，不要与提供方一样 --> <dubbo:application name="hello-world-customer" /> <dubbo:registry address="redis://localhost:6379" timeout="30000" check="false" /> <!-- 生成远程服务代理，可以和本地bean一样使用demoService --> <dubbo:reference id="defaultService" interface="org.niugang.service.DefaultApiService" /> </beans>
5.5web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2eehttp://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <!-- 上下文配置文件位置 --> <context-param> <param-name>contextConfigLocation</param-name> <!-- spring 配置文件所在位置，启动 spring 时会去该路径下查找该配置文件 --> <param-value>classpath*:applicationContext.xml</param-value> </context-param> <!-- spring 上下文监听器，初始化启动容器时启动 spring --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <!-- spring 核心转发器，拦截指定目录下的请求，分配到配置的拦截路径下处理 --> <servlet> <servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet </servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*：applicationContext.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- spring 编码过滤器 --> <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <!-- 编码过滤器过滤的路径 --> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
以上配置完成。将服务提供者，服务消费分别部署到不同的tomcat中。
启动服务提供者，启动服务消费者。
源码地址：
https://gitee.com/niugangxy/dubbo
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