java—（6）OpenAdaptor：基于webservice传输大文件

OpenAdaptor支持XFire和CXF开发的webservice，所以开发CXF webservice，基于myeclipse开发比较容易。参照网上webrvice传输大文件示例修改 http://blog.csdn.net/kongxx/article/details/7540930

1. 首先是一个封装了服务器端文件路径，客户端文件路径和要传输的字节数组的MyFile类。

package com.cattsoft.baseplatform.webservice.fileltransfer;public class MyFile {private String clientFile;private String serverFile;// 统计总共上传下载字节数private long position;// 每次上传或下载的字节数组private byte[] bytes;public String getClientFile() {return clientFile;}public void setClientFile(String clientFile) {this.clientFile = clientFile;}public String getServerFile() {return serverFile;}public void setServerFile(String serverFile) {this.serverFile = serverFile;}public long getPosition() {return position;}public void setPosition(long position) {this.position = position;}public byte[] getBytes() {return bytes;}public void setBytes(byte[] bytes) {this.bytes = bytes;}}

2. 文件传输的Web Service接口

package com.cattsoft.baseplatform.webservice.fileltransfer;import javax.jws.WebMethod;import javax.jws.WebService;@WebServicepublic interface FileTransferService {@WebMethodvoid uploadFile(String address, String clientFile, String serverFile)throws FileTransferException;@WebMethodvoid uploadFile1(MyFile myFile, String address) throws FileTransferException;@WebMethodvoid uploadFile2(MyFile myFile) throws FileTransferException;@WebMethodvoid downloadFile(String address, String clientFile, String serverFile)throws FileTransferException;@WebMethodvoid downloadFile1(MyFile myFile, String address) throws FileTransferException;@WebMethodMyFile downloadFile2(MyFile myFile) throws FileTransferException;}

3. 文件传输的Web Service接口实现类，主要是一些流的操作

package com.cattsoft.baseplatform.webservice.fileltransfer;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.Arrays;import javax.jws.WebService;import org.apache.commons.io.FileUtils;import org.apache.commons.io.IOUtils;import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;@WebService(endpointInterface = "com.cattsoft.baseplatform.webservice.fileltransfer.FileTransferService", serviceName = "FileTransferService")public class FileTransferServiceImpl {// 以byte[]传输文件，每次传输1024*1024，传输完后myFile.setPosition记录总共传输的字节数public void uploadFile(String address, String clientFile, String serverFile)throws FileTransferException {InputStream is = null;try {MyFile myFile = new MyFile();is = new FileInputStream(clientFile);byte[] bytes = new byte[1024 * 1024];while (true) {int size = is.read(bytes);// 从输入流读取数据存储在缓冲数组bytes，返回读取的字节数，直到检测到文件结束。读取最多等同于read(bytes,// 0, bytes.length)if (size <= 0) {// 返回-1表示文件结束break;}byte[] fixedBytes = Arrays.copyOfRange(bytes, 0, size);// 将bytes数组拷贝到fixedBytes数组，从0到sizemyFile.setClientFile(clientFile);myFile.setServerFile(serverFile);myFile.setBytes(fixedBytes);uploadFile1(myFile, address);myFile.setPosition(myFile.getPosition() + fixedBytes.length);// 总共传输的字节数}} catch (IOException e) {throw new FileTransferException(e.getMessage(), e);} finally {IOUtils.closeQuietly(is);}}public void uploadFile1(MyFile myFile, String address) throws FileTransferException {JaxWsProxyFactoryBean factoryBean = new JaxWsProxyFactoryBean();factoryBean.setAddress(address);factoryBean.setServiceClass(FileTransferService.class);Object obj = factoryBean.create();FileTransferService service = (FileTransferService) obj;service.uploadFile2(myFile);}public void uploadFile2(MyFile myFile) throws FileTransferException {OutputStream os = null;try {if (myFile.getPosition() != 0) {// 使用Apache commons-io的FileUtils工具类// 打开流，如果不存在创建文件及其目录结构，第二个参数表示 文件流是否是追加方式os = FileUtils.openOutputStream(new File(myFile.getServerFile()), true);} else {os = FileUtils.openOutputStream(new File(myFile.getServerFile()), false);}os.write(myFile.getBytes());} catch (IOException e) {throw new FileTransferException(e.getMessage(), e);} finally {IOUtils.closeQuietly(os);}}public void downloadFile(String address, String clientFile, String serverFile)throws FileTransferException {MyFile myFile = new MyFile();myFile.setServerFile(serverFile);long position = 0;while (true) {myFile.setPosition(position);myFile = downloadFile1(myFile, address);if (myFile.getBytes().length <= 0) {break;}OutputStream os = null;try {if (position != 0) {os = FileUtils.openOutputStream(new File(clientFile), true);} else {os = FileUtils.openOutputStream(new File(clientFile), false);}os.write(myFile.getBytes());} catch (IOException e) {throw new FileTransferException(e.getMessage(), e);} finally {IOUtils.closeQuietly(os);}position += myFile.getBytes().length;}}public MyFile downloadFile1(MyFile myFile, String address) throws FileTransferException {JaxWsProxyFactoryBean factoryBean = new JaxWsProxyFactoryBean();factoryBean.setAddress(address);factoryBean.setServiceClass(FileTransferService.class);Object obj = factoryBean.create();FileTransferService service = (FileTransferService) obj;return service.downloadFile2(myFile);}public MyFile downloadFile2(MyFile myFile) throws FileTransferException {InputStream is = null;try {is = new FileInputStream(myFile.getServerFile());is.skip(myFile.getPosition());byte[] bytes = new byte[1024 * 1024];int size = is.read(bytes);if (size > 0) {byte[] fixedBytes = Arrays.copyOfRange(bytes, 0, size);myFile.setBytes(fixedBytes);} else {myFile.setBytes(new byte[0]);}} catch (IOException e) {throw new FileTransferException(e.getMessage(), e);} finally {IOUtils.closeQuietly(is);}return myFile;}}

4. 一个简单的文件传输异常类

package com.cattsoft.baseplatform.webservice.fileltransfer;public class FileTransferException extends Exception {private static final long serialVersionUID = 1L;public FileTransferException() {super();}public FileTransferException(String message, Throwable cause) {super(message, cause);}public FileTransferException(String message) {super(message);}public FileTransferException(Throwable cause) {super(cause);}}

5. 下面是Server类用来发布web service

package com.cattsoft.baseplatform.webservice.fileltransfer;import javax.xml.ws.Endpoint;public class FileTransferServer {public static void main(String[] args) throws Exception {Endpoint.publish("http://localhost:9000/ws/jaxws/fileTransferService",new FileTransferServiceImpl());// Endpoint.publish(args[0], new FileTransferServiceImpl());}}

6. 最后是Client类，用来发送文件上传和下载请求。

package com.cattsoft.baseplatform.webservice.fileltransfer;/* * uploadFile是从clientFile传到serverFile * downloadFile是从serverFile传到clientFile * 参数args[0], args[1],args[2]依次为address, clientFile, serverFile */public class FileTransferClient {private static final String address = "http://192.168.100.169:9000/ws/jaxws/fileTransferService1";private static final String clientFile = "F:/ftp/test.txt";private static final String serverFile = "D:/share/portal_ESB/ftp/test.txt";public static void main(String[] args) throws Exception {long start = System.currentTimeMillis();FileTransferServiceImpl fts = new FileTransferServiceImpl();fts.uploadFile(args[0], args[1], args[2]);// downloadFile(args[0], args[1], args[2]);long stop = System.currentTimeMillis();System.out.println("Time: " + (stop - start));}}

7、配置openAdaptor文件

<?xml version="1.0" encoding="UTF-8"?><!--   $Id: step01.xml 696 2007-06-27 13:04:36Z higginse $  $HeadURL: https://openadaptor3.openadaptor.org/svn/openadaptor3/tags/3.4.7/example/tutorial/step01.xml $ --><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">   <description><![CDATA[  Adaptor for step 1 of the tutorial.  ]]></description>  <bean id="Adaptor" class="org.openadaptor.core.adaptor.Adaptor">    <property name="messageProcessor" ref="Router"/>  </bean>    <bean id="Router" class="org.openadaptor.core.router.Router">    <property name="processors">      <list>        <ref bean="Reader"/><ref bean="BuyWriter"/>      </list>    </property>  </bean>      <bean id="Reader" class="org.openadaptor.auxil.connector.soap.WebServiceCXFReadConnector">    <property name="wsEndpoint" value="http://localhost:9000/ws/jaxws/fileTransferService1?wsdl"/>  <property name="serviceName">      <bean class="javax.xml.namespace.QName">        <constructor-arg type="java.lang.String" index="0" value="http://filetransfer.cxfstudy.garbagecan.googlecode.com/"></constructor-arg>    <constructor-arg type="java.lang.String" index="1" value="uploadFile"></constructor-arg>      </bean>    </property><property name="parameters"><list><value type="java.lang.String">http://localhost:9000/ws/jaxws/fileTransferService1</value><value type="java.lang.String">F:/ftp/test.txt</value><value type="java.lang.String">F:/ftp1/test1.txt</value></list>   </property>  </bean>     <bean id="Writer" class="org.openadaptor.auxil.connector.soap.WebServiceCXFWriteConnector">    <property name="endpoint" value="http://192.168.223.142:9763/AddService_1.0.0/services/add_service?wsdl"/><property name="methodName" value="add"/></bean>  <bean id="BuyWriter" class="org.openadaptor.auxil.connector.iostream.writer.FileWriteConnector">   <property name="filename" value="output/1.txt" />  </bean></beans>