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cxf学习札记之传递附件

热度：143   发布时间：2012-10-25 10:58:57.0
cxf学习笔记之传递附件
cxf是jws的实现，上传二进制文件主要借助MTOM来实现，只须在发布服务时进行简单的配置即可。

一、服务端
先建web工程
1、创建包括附件的复杂对象
package cn.ibeans.ws.pojo;

import javax.activation.DataHandler;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlMimeType;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class Person {
	private String name;
	private String sex;
	@XmlMimeType("application/octet-stream")		//注意，必不可少
	private DataHandler photo;
	/*public Person(String name, String sex) {
		super();
		this.name = name;
		this.sex = sex;
	}*/
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getSex() {
		return sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}
	
	public DataHandler getPhoto() {
		return photo;
	}
	public void setPhoto(DataHandler photo) {
		this.photo = photo;
	}
	@Override
	public String toString() {
		return "Person [name=" + name + ", sex=" + sex + "]";
	}
	
}


2、创建web服务接口
package cn.ibeans.ws;

import java.util.List;

import javax.jws.WebService;

import cn.ibeans.ws.pojo.Person;

/**
 * 设计一个人员报名的web服务,人员信息是一个复杂对象。
 * 服务端接收该对象后进行必要的处理，并将报名结果回传客户端
 * @author llf
 *
 */
@WebService
public interface RegisterWebService {
	public String toRegister(Person person);
	
	public String toBatchRegister(List<Person> persons);
}

3、创建web服务接口的实现类
package cn.ibeans.ws.impl;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;

import javax.activation.DataHandler;
import javax.jws.WebService;

import org.springframework.web.context.ContextLoader;
import org.springframework.web.context.WebApplicationContext;

import cn.ibeans.ws.RegisterWebService;
import cn.ibeans.ws.pojo.Person;

/**
 * @author llf
 *
 */
@WebService(endpointInterface="cn.ibeans.ws.RegisterWebService")
public class RegisterWebServiceImpl implements RegisterWebService {

	@Override
	public String toRegister(Person person) {
		if(person!=null){
			System.out.print("注册信息是："+person);
			
			//处理附件
			DataHandler data = person.getPhoto();
			try {
				//定义客户端上传的附件在服务器的存储路径和名称
				String path = this.getClass().getResource("/").getPath();	//类路径（classes）在服务器上约绝对地址
				System.out.println("："+path);
				
				WebApplicationContext ctx = ContextLoader.getCurrentWebApplicationContext();//获得web应用的上下文对象			
				String root = ctx.getServletContext().getRealPath("/");		//获得web应用在服务器的根路径的绝对地址
				root+="upload";
				File f = new File(root,person.getName()+".png");
				
				//进行流操作，将附件写到服务器硬盘
				InputStream is = data.getInputStream();
				OutputStream os = new FileOutputStream(f);
				byte[] bytes = new byte[1024];
				int len = 0;
				while((len=is.read(bytes))>0){
					os.write(bytes, 0, len);
				}
				is.close();
				os.close();
				
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return person.getName();
	}

	@Override
	public String toBatchRegister(List<Person> persons) {
		if(persons!=null){
			for(Person person:persons){
				System.out.println(person);
			}
		}
		return "ok";
	}
}


4、在spring中配置web服务
<?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:jaxws="http://cxf.apache.org/jaxws"  
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
                        http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd">  
      
    <import resource="classpath:META-INF/cxf/cxf.xml" />  
    <import resource="classpath:META-INF/cxf/cxf-extension-soap.xml" />  
    <import resource="classpath:META-INF/cxf/cxf-servlet.xml" />   
     
    <jaxws:endpoint id="register"  implementor="cn.ibeans.ws.impl.RegisterWebServiceImpl" address="/ws/register">
    	<jaxws:properties>
    		<entry key="mtom-enabled" value="true"/>	<!--注意：传递附件的必须配置-->
    	</jaxws:properties>
    </jaxws:endpoint>
    
</beans>

4、发布web服务
启动web应用，并测试

二、客户端
1、创建web服务接口在客户端的副本和用来传递DTO对象
可以通过wsdl2java，如果有条件了可直接从服务端copy过来

package cn.ibeans.ws;

import javax.activation.DataHandler;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlMimeType;
import javax.xml.bind.annotation.XmlType;


/**
 * <p>Java class for person complex type.
 * 
 * 
 */
@XmlAccessorType(XmlAccessType.FIELD)
//@XmlType(name = "person", propOrder = {"name", "sex"})
public class Person {

    protected String name;
    protected String sex;
    @XmlMimeType("application/octet-stream")	//注意，传递附件的必要配置
    private DataHandler photo;


    public String getName() {
        return name;
    }

    public void setName(String value) {
        this.name = value;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String value) {
        this.sex = value;
    }

	public DataHandler getPhoto() {
		return photo;
	}

	public void setPhoto(DataHandler photo) {
		this.photo = photo;
	}
}




package cn.ibeans.ws;

import java.util.List;

import javax.jws.WebParam;
import javax.jws.WebService;

/**
 * This class was generated by Apache CXF 2.3.0
 * Tue Jan 10 12:58:50 CST 2012
 * Generated source version: 2.3.0
 * 
 */
 
@WebService(targetNamespace = "http://ws.ibeans.cn/", name = "RegisterWebService")
//@XmlSeeAlso({ObjectFactory.class})
public interface RegisterWebService {

    public java.lang.String toRegister(@WebParam(name = "arg0", targetNamespace = "") cn.ibeans.ws.Person arg0);
    
    public String toBatchRegister(List<Person> persons);
}


3、调用web服务，上传递附件
写一个JUnit类，测试一下：
/**
 * 
 */
package cn.ibeans.test.ws.client;

import java.io.File;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;

import junit.framework.Assert;

import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
import org.junit.Before;
import org.junit.Test;

import cn.ibeans.ws.Person;
import cn.ibeans.ws.RegisterWebService;


/**
 * @author llf
 *
 */
public class RegisterWSTest {

	private JaxWsProxyFactoryBean factory;
	private Person person;
	private List<Person> persons;
	@Before
	public void setUp() throws Exception {
		factory = new JaxWsProxyFactoryBean();
	}
	@Test
	public void testRegister(){
		factory.setServiceClass(RegisterWebService.class);
		factory.setAddress("http://localhost:9090/cxfServer/ws/register");
		//以下三行设置客激活mtom功能，必不可少，
		Map<String,Object> map = new HashMap<String,Object>();
		map.put("mtom-enabled", true);
		factory.setProperties(map);
		
		RegisterWebService client = (RegisterWebService)factory.create();	//若没有上面三行，此处创建不成功
		//以上语句的功能 可以通过spring来实现
		person = new Person();
		person.setName("zhangsan");
		person.setSex("man");
		DataSource ds = new FileDataSource(new File("D://wsdl.png"));//注意！
		person.setPhoto(new DataHandler(ds));	//
		
		String result = client.toRegister(person);
		System.out.println("web service调用结果是："+result);
		Assert.assertEquals("zhangsan", result);
	}
}


4、就是测试了，运行测试类，会发现服务调用成功。检查web工程下的upload目录，查看服务是否传递过来了。

三、注意事项
1、服务端和客户端的数据对象中，用来存储附件的属性都要用“@XmlMimeType("application/octet-stream")”进行注解，如下：
@XmlMimeType("application/octet-stream")
private DataHandler photo;


2、服务端和客户端的web服务配置都要声明mtom-enabled=true
服务端如果在spring中配置，如下：
<jaxws:endpoint id="register"  implementor="cn.ibeans.ws.impl.RegisterWebServiceImpl" address="/ws/register">
    <jaxws:properties>
    	<entry key="mtom-enabled" value="true"/>	
    </jaxws:properties>
</jaxws:endpoint>


客户端，如果用代码配置（也可用spring配置，类似服务端），如下：
Map<String,Object> map = new HashMap<String,Object>();
map.put("mtom-enabled", true);
factory.setProperties(map);
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