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  • HSF服务的开发与使用

    1.HSF服务的开发

    1) 基于Maven创建一个web工程HSFService,如下图,其他的可以自定义。

    2)创建好好在src/main目录下创建一个java目录,并将其设置为sources folder,如下图所示:

    3) 配置项目的pom.xml,如下

     1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     2   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     3   <modelVersion>4.0.0</modelVersion>
     4   <groupId>com.hsf</groupId>
     5   <artifactId>HSFService</artifactId>
     6   <packaging>war</packaging>
     7   <version>1.0-SNAPSHOT</version>
     8   <name>HSFService Maven Webapp</name>
     9   <url>http://maven.apache.org</url>
    10   <properties>
    11     <java-version>1.7.0_67</java-version>
    12   </properties>
    13   <dependencies>
    14     <!-- Junit依赖包-->
    15     <dependency>
    16       <groupId>junit</groupId>
    17       <artifactId>junit</artifactId>
    18       <version>3.8.1</version>
    19       <scope>test</scope>
    20     </dependency>
    21     <!--spring和servlet的依赖包-->
    22     <dependency>
    23       <groupId>javax.servlet</groupId>
    24       <artifactId>servlet-api</artifactId>
    25       <version>2.5</version>
    26     </dependency>
    27     <dependency>
    28       <groupId>org.springframework</groupId>
    29       <artifactId>spring</artifactId>
    30       <version>2.5.6</version>
    31       <type>jar</type>
    32       <scope>compile</scope>
    33     </dependency>
    34     <!-- mysql依赖包-->
    35     <dependency>
    36       <groupId>mysql</groupId>
    37       <artifactId>mysql-connector-java</artifactId>
    38       <version>5.1.6</version>
    39     </dependency>
    40     <dependency>
    41       <groupId>commons-dbcp</groupId>
    42       <artifactId>commons-dbcp</artifactId>
    43       <version>1.2.2</version>
    44     </dependency>
    45     <!-- Ibatits依赖包-->
    46     <dependency>
    47       <groupId>org.apache.servicemix.bundles</groupId>
    48       <artifactId>org.apache.servicemix.bundles.ibatis-sqlmap</artifactId>
    49       <version>2.3.4.726_4</version>
    50     </dependency>
    51     <!-- 淘宝HSF服务的依赖包-->
    52     <dependency>
    53       <groupId>com.taobao.hsf</groupId>
    54       <artifactId>hsf.app.spring</artifactId>
    55       <version>1.4.9.2</version>
    56     </dependency>
    57   </dependencies>
    58   <build>
    59     <finalName>HSFService</finalName>
    60     <plugins>
    61       <plugin>
    62         <artifactId>maven-compiler-plugin</artifactId>
    63         <configuration>
    64           <source>${java-version}</source>
    65           <target>${java-version}</target>
    66         </configuration>
    67       </plugin>
    68     </plugins>
    69   </build>
    70 </project>

    4) 编写服务接口和服务的实现

    代码如下:

     1 package com.hsf.services;
     2 import java.lang.String;
     3 public interface SayHelloService{
     4     public String sayHello(String user);
     5 }
     6 package com.hsf.services.impl;
     7 import com.hsf.services.SayHelloService;
     8 public class SayHelloServiceImpl implements SayHelloService {
     9       public String sayHello(String user) {
    10         return "Hello "+user+" ,Time is "+System.currentTimeMillis()+"(ms)";
    11       }
    12     }

    5) 在Spring的配置文件中配置HSFSpringProviderBean

     1 <?xml version="1.0" encoding="UTF-8"?>
     2 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns="http://www.springframework.org/schema/beans"       xsi:schemaLocation="            http://www.springframework.org/schema/beans   http://www.springframework.org/schema/beans/spring-beans-3.1.xsd                ">
     3     <!-- HSF服务配置-->
     4     <!--配置SayHelloService服务的实现 -->
     5     <bean id="SayHelloServiceImpl" class="com.hsf.services.impl.SayHelloServiceImpl"/>
     6     <!--配置SayHelloService服务提供者-->
     7     <bean id="SayHelloService" class="com.taobao.hsf.app.spring.util.HSFSpringProviderBean" init-method="init">
     8         <!--配置服务提供者对外提供的接口SayHelloService-->
     9         <property name="serviceInterface">
    10             <value>com.hsf.services.SayHelloService</value>
    11         </property>
    12         <!--服务的实现者-->
    13         <property name="target">
    14             <ref bean="SayHelloServiceImpl"/>
    15         </property>
    16         <property name="serviceVersion">
    17             <value>1.0.0.0.dev</value>
    18         </property>
    19         <!-- 组别一致的服务才能互相调用-->
    20         <property name="serviceGroup">
    21             <value>HSF</value>
    22         </property>
    23         <property name="serviceName">
    24             <value>SayHello</value>
    25         </property>
    26     </bean>
    27     <!--配置SayHelloService服务的消费者-->
    28     <bean id="SayHelloServiceConsumer" class="com.taobao.hsf.app.spring.util.HSFSpringConsumerBean" init-method="init">
    29      <!--服务的接口名和版本号须与服务提供者定义的一致-->
    30         <property name="interfaceName">
    31             <value>com.hsf.services.SayHelloService</value>
    32         </property>
    33         <property name="version">
    34             <value>1.0.0.0.dev</value>
    35         </property>
    36     </bean>
    37 </beans>

    6) 在Web.xml中配置spring的上下文环境

     1 <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" >
     2 <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_3_0.xsd"         id="WebApp_ID" version="3.0">
     3   <display-name>HSFService</display-name>
     4  <!-- 默认显示界面 -->
     5   <welcome-file-list>
     6       <welcome-file>index.jsp</welcome-file>
     7       <welcome-file>index.html</welcome-file>
     8   </welcome-file-list>
     9    <!-- 配置spring上下文环境applicationContext -->
    10    <context-param>
    11        <param-name>contextConfigLocation</param-name>
    12        <!-- 应用上下文配置文件 -->
    13        <param-value>classpath*:applicationContext.xml</param-value>
    14    </context-param>
    15     <!--配置spring启动listener入口 -->
    16     <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    17     </listener>
    18 </web-app>

    7) 将HSFService部署,启动tomcat,即可在HSF服务治理中心http://ops.jm.taobao.net/hsfops中根据自己主机的IP查找自己发布的服务

     

    8) 将服务接口SayHelloService打成Jar包(二方包)以供客户端使用

    2.HSF服务的使用

    1) 在客户端的pom.xml文件中添加对HSF的依赖

    1 <dependency>
    2   <groupId>com.taobao.hsf</groupId>
    3   <artifactId>hsf.app.spring</artifactId>
    4   <version>1.4.9.2</version>
    5 </dependency>

    2) 在客户端的Spring配置文件中配置HSFSpringConsumerBean

     1 <!--配置SayHelloService服务的消费者-->
     2 <bean id="SayHelloServiceConsumer" class="com.taobao.hsf.app.spring.util.HSFSpringConsumerBean" init-method="init">
     3     <!--服务的接口名和版本号须与服务提供者定义的一致-->
     4     <property name="interfaceName">
     5         <value>com.hsf.services.SayHelloService</value>
     6     </property>
     7     <property name="version">
     8         <value>1.0.0.0.dev</value>
     9     </property>
    10 </bean>

    3)引入服务端打好的二方Jar包com.hsf.services.jar,创建SayHelloServlet使用服务

    SayHelloServlet的代码如下:

     1 package com.hsf.consumer;
     2 import com.hsf.services.SayHelloService;
     3 import org.springframework.web.context.WebApplicationContext;
     4 import org.springframework.web.context.support.WebApplicationContextUtils;
     5 import javax.servlet.ServletException;
     6 import javax.servlet.http.HttpServlet;
     7 import javax.servlet.http.HttpServletRequest;
     8 import javax.servlet.http.HttpServletResponse;
     9 import java.io.IOException;
    10 import java.io.PrintWriter;
    11 
    12 public class SayHelloServlet extends HttpServlet {
    13     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    14         //通过ServletContext获取Spring的上下文
    15         WebApplicationContext context= WebApplicationContextUtils.getWebApplicationContext(getServletContext());
    16         //通过BeanFactory获取服务的消费者SayHelloServiceConsumer
    17         SayHelloService sayHelloService= (SayHelloService) context.getBean("SayHelloServiceConsumer");
    18 
    19         PrintWriter out=response.getWriter();
    20         //调用服务
    21         out.println(sayHelloService.sayHello("xiwu.xxw"));
    22         out.close();
    23         return;
    24     }
    25     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    26         doPost(request,response);
    27     }
    28 }

    5)部署该web工程到tomcat,启动tomcat后访问http://localhost:8079/ SayHello?name=zhangsna 即可看到打印出“Hello zhangsan,Time is xxxxx (ms)

     

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  • 原文地址:https://www.cnblogs.com/cloudml/p/4675705.html
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