import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class BlobService {

    /*
     * 文件上传服务
     */
    public boolean uploadFile(String fileName,byte[] bytes)
    {
        FileOutputStream fos = null;
        try{
            fos = new FileOutputStream("F:\\"+fileName);
            
            //将字节数组bytes中的数据，写入文件输出流fos中
            fos.write(bytes);
            fos.flush();
        }catch (Exception e){
            e.printStackTrace();
            return false;
        }finally{
            try {
                fos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }      
        }
        return true;
    }
    /*
     * 文件下载服务
     */
    public byte[] downloadFile()
    {
        String filepath = "F:\\head.jpg";
        FileInputStream in = null;
        byte bytes[] = null;
        try {
            in = new FileInputStream(filepath);
            bytes = new byte[in.available()];
            
            //从输入流in中,将 bytes.length 个字节的数据读入字节数组bytes中
            in.read(bytes);
        } catch (Exception e) {
            e.printStackTrace();
        }finally{        
            try {
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return bytes;
    }
}

package client;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Date;
import javax.xml.namespace.QName;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.rpc.client.RPCServiceClient;

public class BlobRPCClient
{
    public static void main(String[] args) throws Exception
    {
        RPCServiceClient serviceClient = new RPCServiceClient();
        Options options = serviceClient.getOptions();
        EndpointReference targetEPR = new EndpointReference("http://localhost:8080/axis2/services/BlobService");
        options.setTo(targetEPR);
       
        //=================测试文件上传==================================
        
        String filePath = "f:\\head.jpg";
        FileInputStream fis = new FileInputStream(filePath);
       
        // 创建保存要上传的图像文件内容的字节数组
        byte[] buffer = new byte[fis.available()];
        
        //将输入流fis中的数据读入字节数组buffer中
        fis.read(buffer);  
      
        //设置入参（1、文件名，2、文件字节流数组）
        Object[] opAddEntryArgs = new Object[]{"我是上传的文件.jpg", buffer};
        
        //返回值类型
        Class<?>[] classes = new Class<?>[]{ Boolean.class };
        
        //指定要调用的方法名及WSDL文件的命名空间
        QName opAddEntry = new QName("http://ws.apache.org/axis2","uploadFile");
        
        //关闭流
        fis.close();
     
        //执行文件上传
        System.out.println(new Date()+" 文件上传开始");
        Object returnValue = serviceClient.invokeBlocking(opAddEntry,opAddEntryArgs, classes)[0];
        System.out.println(new Date()+" 文件上传结束，返回值="+returnValue);
      
        //=================测试文件下载==================================

        opAddEntry = new QName("http://ws.apache.org/axis2", "downloadFile");
        
        System.out.println(new Date()+" 文件下载开始");
        byte bytes[] = (byte[]) serviceClient.invokeBlocking(opAddEntry, new Object[]{}, new Class[]{byte[].class})[0];
        FileOutputStream fileOutPutStream = new FileOutputStream("F:\\我是下载的文件.jpg");
       
        //将字节数组bytes中的数据，全部写入输出流fileOutPutStream中
        fileOutPutStream.write(bytes);
        fileOutPutStream.flush();
        fileOutPutStream.close();
        System.out.println(new Date()+" 文件下载完成");
    }
}