ofbiz的服务(service)export成web service的方法(7)

xmlrpc调用可以使用压缩

xmlrpc的报文的冗余是很多的，大量的标签将会消耗掉你的带宽，所以对xmlrpc的返回的报文进行压缩很有必要的。以前写的代码：

1. import java.net.MalformedURLException;
2. import java.net.URL;
3. import java.util.ArrayList;
4. import java.util.HashMap;
5. import java.util.Iterator;
6. import java.util.List;
8. import org.apache.xmlrpc.XmlRpcException;
9. import org.apache.xmlrpc.client.XmlRpcClient;
10. import org.apache.xmlrpc.client.XmlRpcClientConfigImpl;
12.     
13. public class testFindPersonByFirstName {
15.     /**
16.      * @param args
17.      * @throws MalformedURLException 
18.      * @throws XmlRpcException 
19.      */
20.     public static void main(String[] args) throws MalformedURLException, XmlRpcException {
21.         // TODO Auto-generated method stub
22.         XmlRpcClientConfigImpl config = new XmlRpcClientConfigImpl();
23.         config.setServerURL(new URL("http://127.0.0.1:18080/webtools/control/xmlrpc"));
24.         XmlRpcClient client = new XmlRpcClient();
25.         client.setConfig(config);
26.         Object[] params = new Object[]{"John"};
27.         HashMap result = (HashMap) client.execute("findPersonByfirstName", params);
28.         
29.         Object[] oz = (Object [])result.get("personList");
30.         System.out.println("partyId firstName   lastName");
31.         for(int i=0;i<oz.length;i++){
32.             HashMap person = (HashMap)oz[i];
33.             System.out.println(person.get("partyId")+"  "+person.get("firstName")+" "+person.get("lastName"));
34.         }
35.     }
36. }

我们用TcpMon抓一下包，返回的数据：

1. HTTP/1.1 200 OK
2. Server: Apache-Coyote/1.1
3. Set-Cookie: JSESSIONID=B5E7115DD5E2568D75AF6CD19B0DB2E4.jvm1; Path=/webtools
4. Set-Cookie: OFBiz.Visitor=10311; Expires=Sat, 28-Nov-2009 07:57:12 GMT; Path=/
5. Content-Type: text/xml;charset=UTF-8
6. Transfer-Encoding: chunked
7. Date: Fri, 28 Nov 2008 07:57:12 GMT
9. 1011
10. <?xml version="1.0" encoding="UTF-8"?><methodResponse><params><param><value><struct><member><name>personList</name><value><array><data><value><struct><member><name>partyId</name><value>10000</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10001</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10002</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10003</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10004</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10010</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10020</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10030</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10040</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10050</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10060</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10070</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10071</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10072</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10080</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10081</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10082</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10090</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value><value><struct><member><name>partyId</name><value>10100</value></member><member><name>firstName</name><value>John</value></member><member><name>lastName</name><value>Tower</value></member></struct></value></data></array></value></member></struct></value></param></params></methodResponse>
11. 0

恐怖吧！！！！数据长度为1011。

我们修改一下代码，增加一行：

1. config.setGzipRequesting(true);

再试试，数据返回成功，但是返回部分已经用gzip压缩过了，可惜的是tcpmon看不到压缩后有多长，是107吗？不清楚，但是从gzip的算法来看，上述的报文的压缩率应该是很高的，因为有太多的冗余