SSM和Dubbox服務入門講解及原始碼Demo
阿新 • • 發佈：2018-12-15
開始前準備環境：
編譯器：IDEA
開發環境：Win 10
Linux：安裝好Zookeeper註冊中心
一、使用VM搭建好JDK環境等
這個就不在此說明如何搭建了，後面直接上乾貨；
二、搭建zookeeper環境
將 zookeeper-3.4.6.tar.gz(後面會提供資源) 上傳到linux上你喜歡的目錄下，博主就直接傳到root目錄下，上傳成功會將其解壓 。
1、解壓zookeeper-3.4.6.tar.gz
tar -zxvf zookeeper-3.4.6.tar.gz
2、進入 zookeeper-3.4.6 目錄，建立 data 資料夾
mkdir data
3、進入conf目錄 ，把 zoo_sample.cfg 改名為 zoo.cfg
cd conf
mv zoo_sample.cfg zoo.cfg
4、開啟zoo.cfg , 修改 data 屬性：
dataDir=/root/zookeeper-3.4.6/data
5、進入bin目錄，啟動服務輸入命令
./zkServer.sh start
三、將dubbo-2.8.4.jar 部署到Maven庫中
由於duboox並沒有上傳座標到Maven倉庫中，所以使用Maven進行開發時，需要我們自己將jar包安裝到倉庫中。
1、複製我提供的dubbo-2.8.4.jar （後面會提供） 到任意非中文路徑的目錄下，博主放在d:\setup
2、然後輸入cmd命令進行打包
mvn install:install-file -Dfile=d:\setup\dubbo-2.8.4.jar -DgroupId=com.alibaba -DartifactId=dubbo -Dversion=2.8.4 -Dpackaging=jar四、工程的搭建
在上面三步，我們以及搭建好了基本的環境，下面我們將進入正題。
1、建立服務提供者工程(war) DubboService
1.1、pom.xml中引入依賴
<?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>lhz.lx</groupId> <artifactId>Dubbox-service</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <properties> <spring.version>4.2.4.RELEASE</spring.version> </properties> <dependencies> <!-- Spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <!-- dubbo相關 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.8.4</version> </dependency> <dependency> <groupId>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.4.6</version> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency> <dependency> <groupId>javassist</groupId> <artifactId>javassist</artifactId> <version>3.11.0.GA</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <configuration> <!-- 指定埠 --> <port>8081</port> <!-- 請求路徑 --> <path>/</path> </configuration> </plugin> </plugins> </build> </project>
1.2、建立web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>ssm0523</display-name>
<!-- 載入spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:ApplicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>1.3、建立業務介面
package lhz.lx.service;
public interface UserService {
public String getName();
}
1.4、建立業務實現類
package lhz.lx.service.impl;
import com.alibaba.dubbo.config.annotation.Service;
import lhz.lx.service.UserService;
@Service
public class UserServiceImpl implements UserService {
@Override
public String getName() {
return "使用了Dubbo進行連線";
}
}
注意：Service註解與原來不同，需要引入com.alibaba包下的，import com.alibaba.dubbo.config.annotation.Service;
1.5、編寫配置檔案ApplicationContext-service.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
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-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!--暴露服務-->
<dubbo:application name="Dubbox-service"/>
<dubbo:registry address="zookeeper://192.168.25.128:2181"/>
<dubbo:annotation package="lhz.lx.service.impl" />
</beans>1.6、執行測試
配置Maven的執行
2、服務的消費者工程(war) DubboWeb開發
2.1、引入pom檔案
區別就是把tomcat外掛的執行埠。
2.2、建立web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>ssm0523</display-name>
<!-- springmvc前端控制器 -->
<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:SpringMvc.xml</param-value>
</init-param>
<!-- 在tomcat啟動的時候就載入這個servlet -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 配置Post請求亂碼 -->
<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>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>2.3、拷貝業務介面
將Dubbo-Service工程下的介面（lhz.lx.service）內容考到Dubbo-Web下。
2.4、編寫Controller
package lhz.lx.controller;
import com.alibaba.dubbo.config.annotation.Reference;
import lhz.lx.service.UserService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
@RequestMapping("/user")
public class UserController {
@Reference
private UserService userService;
@RequestMapping("/showName")
@ResponseBody
public String showName(){
System.out.println("訪問了");
return userService.getName();
}
}
注意：使用註解 @Reference 來引入Service介面
2.5、建立SpringMvc.xml 檔案
<?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://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<mvc:annotation-driven >
<mvc:message-converters register-defaults="false">
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg value="UTF-8" />
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
</bean>
<!-- 引用dubbo 服務 -->
<dubbo:application name="Dubbo-web" />
<dubbo:registry address="zookeeper://192.168.25.128:2181"/>
<dubbo:annotation package="lhz.lx.controller" />
</beans>
五、注意
Zookeeper的地址一定要和虛擬機器裡面的ip地址一直。