ssh学习笔记二：cxfServlet简单实现

1 spring配置学习

1.1 配置bean

学习一个例子。测试配置bean，配置两个family，family1和family2都有相同的属性但是属性值不同，加入配置文件，可以配置如下：

1.1.1 配置bean的属性值spring-base.xml

<!-- 使用class属性指定类的默认构造方法创建实例 名称由id属性指定 加上scope="prototype" 表示每次生成新的实例-->
    <bean id="family" class="com.study.spring.Family" >
        <property name="mother" value="Lily"></property>
        <property name="father" value="Bob"></property>
        <property name="sister" value="Jerry"></property>
        <property name="brother" value="Ham"></property>
    </bean>
    <bean id="familyUtil1" class="com.study.spring.FamilyUtil">
        <property name="family" ref="family"></property>
    </bean>
    <bean id="family2" class="com.study.spring.Family" >
        <property name="mother" value="family2-Lily"></property>
        <property name="father" value="family2-Bob"></property>
        <property name="sister" value="family2-Jerry"></property>
        <property name="brother" value="family2-Ham"></property>
    </bean>
    <bean id="familyUtil2" class="com.study.spring.FamilyUtil">
        <property name="family" ref="family2"></property>
    </bean>

1.1.2 Family是个实体类

package com.study.spring;

public class Family{
    private String mother;
    private String father;  
    private String sister;  
    private String brother;
    public String getMother() {
        return mother;
    }
    public void setMother(String mother) {
        this.mother = mother;
    }
    public String getFather() {
        return father;
    }
    public void setFather(String father) {
        this.father = father;
    }
    public String getSister() {
        return sister;
    }
    public void setSister(String sister) {
        this.sister = sister;
    }
    public String getBrother() {
        return brother;
    }
    public void setBrother(String brother) {
        this.brother = brother;
    }   
}

1.1.3 FamilyUtil类，包含family属性

package com.study.spring;

public class FamilyUtil {
    private Family family = new Family();
    public Family getFamily() {
        return family;
    }
    public void setFamily(Family family) {
        this.family = family;
    }
    public String listFamily() {
        if(family.getMother() != null){
            System.out.println(family.getMother());
            System.out.println(family.getFather());
            System.out.println(family.getBrother());
            System.out.println(family.getSister());
            return "success";
        }else{
            System.out.println("为空");
            return "fail";
        }       
    }
}

1.1.4 测试类TestFamily

package com.study.spring;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import com.study.utils.struts.BaseAction;
@Controller("testFamily")
@Scope("prototype")
public class TestFamily extends BaseAction{

    /** * @Fields serialVersionUID : TODO(用一句话描述这个变量表示什么) */ 
    private static final long serialVersionUID = 1L;
    @Autowired
    @Qualifier("familyUtil1")
    private FamilyUtil familyUtil1;

    @Autowired
    @Qualifier("familyUtil2")
    private FamilyUtil familyUtil2;

    public void listFamily(){
        if("success".equals(familyUtil1.listFamily())){
            writeJson2Page("success");
        }else{
            writeJson2Page("fail");
        }
    }

    public void listFamily2(){
        if("success".equals(familyUtil2.listFamily())){
            writeJson2Page("success");
        }else{
            writeJson2Page("fail");
        }
    }
}

1.1.5 调用方法

调用TestFamily.listFamily()时，控制台打印结果

Lily
Bob
Ham
Jerry

调用TestFamily.ListFamily2()时，控制台打印结果

family2-Lily
family2-Bob
family2-Ham
family2-Jerry

结果与预期的一样。

1.1.6 结果分析

TestFamily通过注解的方式加载bean “familyUtil1”,在spring-base.xml配置文件中

即，familyUtil1有family属性，且指向bean “family”,而bean “family”又有以下属性

        <property name="mother" value="Lily"></property>
        <property name="father" value="Bob"></property>
        <property name="sister" value="Jerry"></property>
        <property name="brother" value="Ham"></property>

故调用familyUtil1.listFamily()时会显示配置文件的family属性配置。调用familyUtil2.listFamily同理会显示family2的属性配置。

2 简单的cxfServlet实例

2.1 什么是cxfServlet

CXF implements the JAX-WS APIs which make building web services easy.
即是apache的一个webservice引擎。

2.2 依赖的jar包

spring4依赖的包

 <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.0.3.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>4.0.3.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>4.0.3.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>4.0.3.RELEASE</version>
    </dependency>

cxf3依赖的jar包

<dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-core</artifactId>
        <version>3.0.0-milestone2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxrs</artifactId>
        <version>3.0.0-milestone2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-rs-extension-providers</artifactId>
        <version>3.0.0-milestone2</version>
    </dependency>
    <dependency>
      <groupId>org.apache.cxf</groupId>
      <artifactId>cxf-rt-rs-client</artifactId>
      <version>3.0.0-milestone1</version>
    </dependency>   

2.3 web.xml配置

<?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_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>gyh</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
  </welcome-file-list>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:*.xml</param-value>
  </context-param>
  <!-- CXF implements the JAX-WS APIs which make building web services easy.apache的一个webservice引擎。 -->
    <servlet>
    <servlet-name>CXFServlet</servlet-name>
    <servlet-class>
        org.apache.cxf.transport.servlet.CXFServlet
    </servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>CXFServlet</servlet-name>
    <url-pattern>/service/*</url-pattern>
  </servlet-mapping>

   <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener> 
</web-app>

2.4 spring-cxf.xml加入配置

<import resource="classpath:META-INF/cxf/cxf.xml"/>
  <import resource="classpath:META-INF/cxf/cxf-servlet.xml"/>

  <bean id="helloService" class="com.study.spring.HelloServiceImpl"></bean>

  <jaxrs:server id="defaultService" address="/">
       <jaxrs:serviceBeans>
             <ref bean="helloService"/>
       </jaxrs:serviceBeans>
  </jaxrs:server>

2.5 代码如下

接口类IHelloService

package com.study.spring;

import javax.ws.rs.FormParam;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

import com.study.utils.spring.IBaseAction;

@Path("/hello")
public interface IHelloService extends IBaseAction{
    @GET
    @Path("/sayHello")
    @Produces({MediaType.TEXT_HTML,MediaType.APPLICATION_XML,MediaType.APPLICATION_JSON})
    public String sayHello(@FormParam("msg")String msg); 
}

接口实现类HelloServiceImpl

package com.study.spring;

public class HelloServiceImpl implements IHelloService{

    @Override
    public String sayHello(String msg) {
        System.out.println("Hello World!" + msg);
        return "success";
    }
}

2.6 访问接口

启动tomcat，访问地址由tomcat的地址+项目名称（tomcat下的server.xml可以修改）+web.xml中cxfServlet配置的 地址+spring-cxf.xml中配置的address+interface配置path
如我的ip地址 192.168.100.115:8081,项目名gyh，
web.xml配置 “/service”,
spring-cxf.xml配置 “/”
类Path: “/hello”
方法Path: “/sayHello”
则访问地址 ：http://192.168.100.115:8081/gyh/service/hello/sayHello
加参数访问：http://192.168.100.115:8081/gyh/service/hello/sayHello?msg=Sweet
浏览器结果

控制台输出,上面为加参数访问结果