WebService Axis2 MTOM大数据传输实现
WebService大数据传输原理采用MTOM(消息优化机制)处理。大概原理是二进制文件与
SOAP报文分开，SOAP报文body里面引用文件二进制（跟邮件传输机制差不多）。
MTOM服务端代码为
@MTOM //服务的标志MTOM协议发布
@WebService
public class MTOMServer {
/**
* 下载文件
*
* @return 数据句柄
*/
@XmlMimeType("application/octet-stream") //流形式返回
public DataHandler download(@WebParam(name = "fileName") String fileName) {
System.out.println(".......");
return new DataHandler(
new FileDataSource(new File("F:\\os\\win7.rar")));
}
public static void main(String[] args) {
Endpoint.publish(" http://localhost:45600/file", new MTOMServer());
}
}
axis2客户端代码为
public class WebServiceTest {
public static void main(String[] args) throws XMLStreamException {
try {
ServiceClient wsClient = new ServiceClient();
Options clientOptions = new Options();
clientOptions.setTo(new EndpointReference(" http://localhost:45600/file"));
clientOptions.setAction(" http://test.component.access.sunsheen.com/");
//开启MTOM协议
clientOptions.setProperty(Constants.Configuration.ENABLE_MTOM, Constants.VALUE_TRUE);
//设置缓存目录，不然MTOM会加载所有二进制就内存，或内存溢出。
clientOptions.setProperty(Constants.Configuration.CACHE_ATTACHMENTS,Constants.VALUE_TRUE);
clientOptions.setProperty(Constants.Configuration.ATTACHMENT_TEMP_DIR,"d:/demo");
clientOptions.setProperty(Constants.Configuration.FILE_SIZE_THRESHOLD, "102400");
wsClient.setOptions(clientOptions);
OMFactory fac = OMAbstractFactory.getOMFactory();
OMElement method = fac.createOMElement("download"," http://test.component.access.sunsheen.com/","test");
OMElement params = fac.createOMElement("fileName",null);
params.setText("xx");
method.addChild(params);
OMElement response;
System.out.println(method.toString());
response = wsClient.sendReceive(method);
OMElement dataElement = response.getFirstElement();
OMText binNode = (OMText) dataElement.getFirstOMChild();
DataHandler dataHandler = (DataHandler) binNode.getDataHandler();
InputStream in = dataHandler.getInputStream();
FileOutputStream fos = new FileOutputStream("e:/e.txt");
byte[] offer = new byte[1024];
while (in.read(offer) != -1) {
fos.write(offer);
}
in.close();
fos.close();
} catch (AxisFault e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
//
// try {
// test2();
// } catch (IOException e) {
// // TODO 自动生成的 catch 块
// e.printStackTrace();
// }
}
}
还有种方式是通过生成代码客服端进行访问
1.先用wsimport 生成客服端
2.运行代码
public class TestClient {
public static void main(String[] args) throws IOException {
MTOMServerService s = new MTOMServerService();
MTOMServer s1 = s.getMTOMServerPort();
DataHandler x = s1.download("xx");
InputStream in = x.getInputStream();
FileOutputStream fos = new FileOutputStream("e:/e.txt");
byte[] offer = new byte[1024];
while (in.read(offer) != -1) {
fos.write(offer);
}
in.close();
fos.close();
}
}