CloudStack4.4开发，API调用java实例
CloudStack API开发没有java例子很是苦恼，原站点文档只有python，所以研究了一把源码自己写了一个java版本开发的例子：
代码如下：
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.HashMap;
import java.util.Map;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.parsers.DocumentBuilder;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.methods.GetMethod;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import javax.xml.parsers.DocumentBuilderFactory;
public class test1 {
private static DocumentBuilderFactory factory = DocumentBuilderFactory
.newInstance();
/**
* @param args
* @throws NoSuchAlgorithmException
* @throws InvalidKeyException
* @throws IOException
* @throws HttpException
*/
public static void main(String[] args) throws InvalidKeyException,
NoSuchAlgorithmException, HttpException, IOException {
// TODO Auto-generated method stub
String developerServer = "http://10.11.1.212:8080/client/api";
String ApiKey = "7hyD4QRRcNkC59ARxCRCO3cFoowcGmBDY5F23qmWwxYdQT22plI6GY7R1EDBWdiRj4-ktSE00HeDlk38EXZszw";
String s_secretKey = "bR493wms46oujIJxKST6qkTH069pFdnzeQYFGgKqLsaotU5Dgugolnbx48Dq3NJSjYu06qXmINYVBkC0K-b2jQ";
String encodedApiKey = URLEncoder.encode(ApiKey, "UTF-8");
String encodedPublicIpId = "", encodedVmId = "";
String urlold = "apikey=" + encodedApiKey + "&command=listUsers";
urlold = urlold.toLowerCase();
String signature = signRequest(urlold, s_secretKey);
String encodedSignature = URLEncoder.encode(signature, "UTF-8");
String url = developerServer + "?command=listUsers&apikey="
+ encodedApiKey + "&signature=" + encodedSignature;
HttpClient client = new HttpClient();
GetMethod method = new GetMethod(url);
System.out.println(url);
int responseCode = client.executeMethod(method);
// s_logger.info("url is " + url);
// s_logger.info("list ip addresses for user " + userId +
// " response code: " + responseCode);
if (responseCode == 200) {
InputStream is = method.getResponseBodyAsStream();
Map<String, String> success = getSingleValueFromXML(is,
new String[] { "accountid" });
System.out.print(success.get("accountid"));
// s_logger.info("Enable Static NAT..success? " +
// success.get("success"));
} else {
// s_logger.error("Enable Static NAT failed with error code: " +
// responseCode + ". Following URL was sent: " + url);
// return responseCode;
}
}
public static String signRequest(String request, String secretkey)
throws NoSuchAlgorithmException, InvalidKeyException {
Mac mac = Mac.getInstance("HmacSHA1");
SecretKeySpec keySpec = new SecretKeySpec(secretkey.getBytes(),
"HmacSHA1");
mac.init(keySpec);
mac.update(request.getBytes());
byte[] encryptedBytes = mac.doFinal();
// System.out.println("HmacSHA1 hash: " + encryptedBytes);
return new String(Base64.encodeBase64(encryptedBytes));
}
public static Map<String, String> getSingleValueFromXML(InputStream is,
String[] tagNames) {
Map<String, String> returnValues = new HashMap<String, String>();
try {
DocumentBuilder docBuilder = factory.newDocumentBuilder();
Document doc = docBuilder.parse(is);
Element rootElement = doc.getDocumentElement();
for (int i = 0; i < tagNames.length; i++) {
NodeList targetNodes = rootElement
.getElementsByTagName(tagNames[i]);
if (targetNodes.getLength() <= 0) {
// s_logger.error("no " + tagNames[i] +
// " tag in XML response...returning null");
} else {
returnValues.put(tagNames[i], targetNodes.item(0)
.getTextContent());
}
}
} catch (Exception ex) {
// s_logger.error("error processing XML", ex);
}
return returnValues;
}
}
=================================================
控制台返回结果：
http://10.11.1.212:8080/client/api?command=listUsers&apikey=7hyD4QRRcNkC59ARxCRCO3cFoowcGmBDY5F23qmWwxYdQT22plI6GY7R1EDBWdiRj4-ktSE00HeDlk38EXZszw&signature=YKesN%2FiaEkkS36iue6RSE0ZYvVU%3D
0001dcae-1c4e-11e4-9ef8-000c29cff73b
==================================
在浏览器中将url贴上去，也可以返回整个XML：
<listusersresponse cloud-stack-version="4.4.0"><count>1</count><user><id>0001e898-1c4e-11e4-9ef8-000c29cff73b</id><username>admin</username><firstname>admin</firstname><lastname>cloud</lastname><created>2014-08-05T19:10:06+0800</created><state>enabled</state><account>admin</account><accounttype>1</accounttype><domainid>c4bf5d1a-1c4d-11e4-9ef8-000c29cff73b</domainid><domain>ROOT</domain><apikey>7hyD4QRRcNkC59ARxCRCO3cFoowcGmBDY5F23qmWwxYdQT22plI6GY7R1EDBWdiRj4-ktSE00HeDlk38EXZszw</apikey><secretkey>bR493wms46oujIJxKST6qkTH069pFdnzeQYFGgKqLsaotU5Dgugolnbx48Dq3NJSjYu06qXmINYVBkC0K-b2jQ</secretkey><accountid>0001dcae-1c4e-11e4-9ef8-000c29cff73b</accountid><iscallerchilddomain>false</iscallerchilddomain><isdefault>true</isdefault></user></listusersresponse>
=======================================================================================
java引用了几个apache的公用类包：
commons-codec-1.3.jar
commons-httpclient-3.1.jar
commons-logging.jar
jdk版本为1.7
=======================================================================================
官网API参考地址：
http://cloudstack.apache.org/docs/api/
=======================================================================================
测试另外一个API，listNetworks,API说明在此：http://cloudstack.apache.org/docs/api/apidocs-4.4/root_admin/listNetworks.html
修改main()方法：
public static void main(String[] args) throws InvalidKeyException,
NoSuchAlgorithmException, HttpException, IOException {
// TODO Auto-generated method stub
String developerServer = "http://10.11.1.212:8080/client/api";
String ApiKey = "7hyD4QRRcNkC59ARxCRCO3cFoowcGmBDY5F23qmWwxYdQT22plI6GY7R1EDBWdiRj4-ktSE00HeDlk38EXZszw";
String s_secretKey = "bR493wms46oujIJxKST6qkTH069pFdnzeQYFGgKqLsaotU5Dgugolnbx48Dq3NJSjYu06qXmINYVBkC0K-b2jQ";
String encodedApiKey = URLEncoder.encode(ApiKey, "UTF-8");
String encodedPublicIpId = "", encodedVmId = "";
//String urlold = "apikey=" + encodedApiKey + "&command=listUsers";
String urlold = "apikey=" + encodedApiKey + "&command=listNetworks";
urlold = urlold.toLowerCase();
String signature = signRequest(urlold, s_secretKey);
String encodedSignature = URLEncoder.encode(signature, "UTF-8");
//String url = developerServer + "?command=listUsers&apikey="
String url = developerServer + "?command=listNetworks&apikey="
+ encodedApiKey + "&signature=" + encodedSignature;
HttpClient client = new HttpClient();
GetMethod method = new GetMethod(url);
System.out.println(url);
int responseCode = client.executeMethod(method);
// s_logger.info("url is " + url);
// s_logger.info("list ip addresses for user " + userId +
// " response code: " + responseCode);
if (responseCode == 200) {
InputStream is = method.getResponseBodyAsStream();
Map<String, String> success = getSingleValueFromXML(is,
new String[] { "accountid","id","account","name" });
System.out.print(success.get("id")+success.get("name")+success.get("account"));
// s_logger.info("Enable Static NAT..success? " +
// success.get("success"));
} else {
// s_logger.error("Enable Static NAT failed with error code: " +
// responseCode + ". Following URL was sent: " + url);
// return responseCode;
}
}
返回结果：
http://10.11.1.212:8080/client/api?command=listNetworks&apikey=7hyD4QRRcNkC59ARxCRCO3cFoowcGmBDY5F23qmWwxYdQT22plI6GY7R1EDBWdiRj4-ktSE00HeDlk38EXZszw&signature=NPHxoT08ArbHJSLKBCnCjUA7MOQ%3D
a7ec78ae-0dd6-42f7-8015-cdb2ca14ec66defaultGuestNetworknull
==============================================================