webservice文件上传下载

使用DataHandler实现webservice的文件上传下载

服务端代码：

package com.hello.weChat.controller;



import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;



/**

 * Created by winkey on 15-2-10.

 */

public class FileController {

    /*

     * 文件上传服务

     */

    public String upload(DataHandler handler, String fileName) {

        String fullPath = "F:\\test\\testupload\\" + fileName;

        File file = new File(fullPath);

        int flag = 0;

        if (handler == null)

            return "failure";

        if (fileName == null)

            return "failure";

        InputStream input = null;

        FileOutputStream fos = null;

        try {

            input = handler.getInputStream();

            fos = new FileOutputStream(file);

            byte[] buffer = new byte[4096];

            while ((flag = input.read(buffer)) != -1) {

                fos.write(buffer, 0, flag);

            }

        } catch (IOException e) {

            e.printStackTrace();

            return "failure";

        } finally {

            try {

                if (input != null) {

                    input.close();

                }

                if (fos != null) {

                    fos.close();

                }

            } catch (IOException e) {

                e.printStackTrace();

            }

        }

        return "Success";

    }



    /*

     * 文件下载服务

     */

    public DataHandler downloadFile() {

        String filepath = "F:\\test\\head.jpg";

        DataHandler dataHandler = new DataHandler(new FileDataSource(filepath));

        System.out.println("-------------------------下载");

        return dataHandler;

    }





}

服务端wsdd文件配置

<service name="FileController" provider="java:RPC">  

         <parameter name="className" value="com.hello.weChat.controller.FileController"/>  

         <parameter name="allowedMethods" value="downloadFile,upload"/> 

        <parameter name="scope" value="session"/>

        <operation name="upload" qname="operNS:upload" xmlns:operNS="upload" returnType="rns:string" xmlns:rns="http://www.w3.org/2001/XMLSchema">

            <parameter name="handler" type="ns:DataHandler" xmlns:ns="http://www.w3.org/2001/XMLSchema"/>

            <parameter name="fileName" type="ns:string"  xmlns:ns="http://www.w3.org/2001/XMLSchema"/>

        </operation>

        <typeMapping qname="hns:DataHandler" xmlns:hns="ns:FileHandler"

                     languageSpecificType="java:javax.activation.DataHandler"

                     serializer="org.apache.axis.encoding.ser.JAFDataHandlerSerializerFactory"

                     deserializer="org.apache.axis.encoding.ser.JAFDataHandlerDeserializerFactory"

                     encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />

    </service>

下载的时候只需配置typeMapping，上传的时候需要同时配置operation和typeMaping

客户端：

下载测试类：

package com.hello.weChat.controller;



import org.apache.axis.client.Call;

import org.apache.axis.client.Service;

import org.apache.axis.encoding.ser.JAFDataHandlerDeserializerFactory;

import org.apache.axis.encoding.ser.JAFDataHandlerSerializerFactory;



import javax.activation.DataHandler;

import javax.xml.namespace.QName;

import javax.xml.rpc.ServiceException;

import java.io.*;

import java.rmi.RemoteException;



/**

 * Created by winkey on 15-2-10.

 */

public class downloadTest {

    public static void main(String[] args) {   // TODO Auto-generated method stub

        String url = "http://192.168.129.245:8080/btm-szny/services/FileController";

        Service service = new Service();

        Call call;

        DataHandler handler;

        InputStream input = null;

        FileOutputStream fos = null;

        String filepath = "f:/test/";

        String filename = filepath + "tests.jpg";

        File file = new File(filename);

        try {

            call = (Call) service.createCall();

            /**

             *

             * 注册异常类信息和序列化类

             * ns:FileHandler 和 wsdd 配置文件中的typeMapping中的xmlns:hns="ns:FileHandler" 的对应

             * DataHandler和 wsdd 配置文件中的typeMapping中的qname="hns:DataHandler"的DataHandler对应

             *

             */

            QName qn = new QName("ns:FileHandler", "DataHandler");

            call.setTargetEndpointAddress(url);

            call.setOperationName(new QName("FileController", "downloadFile"));

            call.registerTypeMapping(DataHandler.class, qn, JAFDataHandlerSerializerFactory.class, JAFDataHandlerDeserializerFactory.class); 
　　　　　　　//设置入参名字

            //call.addParameter("source", XMLType.XSD_STRING ,ParameterMode.IN); //设置服务调用方法的传入参数类型

            call.setReturnType(qn, DataHandler.class);//需要返回的QName以及返回的类型是DataHandler.class
　　　　　　　//设置入参的值，放到object数组中

            handler = (DataHandler) call.invoke(new Object[]{});

            input = handler.getInputStream();

            fos = new FileOutputStream(file);

            byte[] buffer = new byte[1024];

            while (input.read(buffer) != -1) {

                fos.write(buffer);

            }

        } catch (ServiceException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (RemoteException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } finally {

            if (input != null) {

                try {

                    input.close();

                } catch (Exception e2) {      // TODO: handle exception

                }

            }

            if (fos != null) {

                try {

                    fos.close();

                } catch (Exception e2) {      // TODO: handle exception

                }

            }

        }

    }

}

上传测试类：

package com.hello.weChat.controller;



import java.rmi.RemoteException;

import javax.activation.DataHandler;

import javax.activation.FileDataSource;

import javax.xml.namespace.QName;

import javax.xml.rpc.ParameterMode;

import javax.xml.rpc.ServiceException;

import org.apache.axis.client.Call;

import org.apache.axis.client.Service;

import org.apache.axis.encoding.XMLType;

import org.apache.axis.encoding.ser.JAFDataHandlerDeserializerFactory;

import org.apache.axis.encoding.ser.JAFDataHandlerSerializerFactory;



/**

 * Created by winkey on 15-2-10.

 */

public class uploadTest {

    public static void main(String[] args) throws ServiceException, RemoteException {

        String url = "http://192.168.129.245:8080/btm-szny/services/FileController";

        String fileName = "head.jpg";

        String path = "f:/test/" + fileName;

        System.out.println(path);



        //这样就相当于构造了一个带文件路径的File了

        DataHandler handler = new DataHandler(new FileDataSource(path));



        Service service = new Service();

        Call call = (Call) service.createCall();

        call.setTargetEndpointAddress(url);



        /**

         * 注册异常类信息和序列化类 ns:FileUploadHandler 和 wsdd 配置文件中的typeMapping中的xmlns:hns="ns:FileUploadHandler" 的对应 DataHandler

         * 和 wsdd 配置文件中的typeMapping中的qname="hns:DataHandler"的DataHandler对应

         */

        QName qn = new QName("ns:FileHandler", "DataHandler");

        call.registerTypeMapping(DataHandler.class, qn,

                JAFDataHandlerSerializerFactory.class,

                JAFDataHandlerDeserializerFactory.class);

        call.setOperationName(new QName(url, "upload"));



        //设置方法形参，注意的是参数1的type的DataHandler类型的，和上面的qn的类型是一样的

        call.addParameter("dataHandler", qn, ParameterMode.IN);

        call.addParameter("fileName", XMLType.XSD_STRING, ParameterMode.IN);



        //设置返回值类型，下面2种方法都可以

        call.setReturnClass(String.class);

        //call.setReturnType(XMLType.XSD_STRING);



        String result = (String) call.invoke(new Object[] { handler, "remote_server_head.jpg" });

        System.out.println(result);

    }

}