CognosSDK Java登陆到Cognos

 cognos提供SDK，让开发者通过程序调用cognos上的一些实现，任何调用，首先是从程序登录cognos开始，下面是一个具体的例子，同时解决在weblogic上代码调用报异常的问题（登录cognos只使用了一个jar包文件---axisCrnpClient.jar）。具体代码示例如下：

package com.resoft.navigate.util;
//Cognos Sdk调用包
//axisCrnpClient.jar

import javax.xml.rpc.ServiceException;import org.apache.axis.AxisFault;import org.apache.axis.client.Stub;import com.cognos.developer.schemas.bibus._3.*;public class CognosLoginTest{private ContentManagerService_Port cmService = null;private ReportService_Port reportService = null;// connect to Cognos8 servicespublic void connectToReportServer(String endPoint){  try{   ContentManagerService_ServiceLocator cmServiceLocator = new ContentManagerService_ServiceLocator();   ReportService_ServiceLocator rsServiceLocator = new ReportService_ServiceLocator();   cmService = cmServiceLocator.getcontentManagerService(new java.net.URL(endPoint));   reportService = rsServiceLocator.getreportService(new java.net.URL(endPoint));  }catch (ServiceException ex){   System.out.println("Caught a ServiceException: " + ex.getMessage());   ex.printStackTrace();  }catch (Exception ex){   System.out.println("Cognos 8 server URL was: " + endPoint);  }}// logon to Cognos 8public String quickLogon(String namespace, String uid, String pwd){  StringBuffer credentialXML = new StringBuffer();  credentialXML.append("<credential>");  credentialXML.append("<namespace>").append(namespace).append("</namespace>");  credentialXML.append("<username>").append(uid).append("</username>");  credentialXML.append("<password>").append(pwd).append("</password>");  credentialXML.append("</credential>");  String encodedCredentials = credentialXML.toString();  XmlEncodedXML xmlCredentials = new XmlEncodedXML();  xmlCredentials.setValue(encodedCredentials);  try{   cmService.logon(xmlCredentials, null);   BiBusHeader CMbibus = (BiBusHeader) ((Stub) cmService).getHeaderObject("", "biBusHeader");   ((Stub) reportService).setHeader("", "biBusHeader", CMbibus);   System.out.println("login  0k");  }catch (Exception e){   e.printStackTrace();  }  System.out.println("Logon successful as " + uid);  return ("Logon successful as " + uid);}public static void main(String[] args){  String namespaceID = "dbAuth";  String userID = "dssadmin";  String password = "123";  String endPoint = "http://10.0.3.199:81/cognos8/cgi-bin/cognos.cgi";  CognosLoginTest gc = new CognosLoginTest();  gc.connectToReportServer(endPoint);  gc.quickLogon(namespaceID, userID, password);  System.out.println("OK"); }}

       上面的代码在tommcat/websphere都没问题，但是在一客户使用weblogic却发现问题，在执行   cmService.logon(xmlCredentials, null);代码时就抛出异常，查阅相关资料发现，weblogic在解释XML格式时有自己的方法，原因如下：
1、weblogic8自带的xml解析器不能解析GBK编码的，如果要让weblogic能够解析GBK编码，那么需要为weblogic8配置额外的xml解析器；
2、 一般使用apache的xml解析器，也就是Xerces.jar和Xalan.jar；

       需要在操作系统的当前用户下设定classpath指定上面的xml解析器， 在weblogic的控制台执行如下操作解决：
1、在控制台的导航树中找到Services->XML这一节点，点击该节点创建一个XML Registries，主要是填写一些类的全名，这些类在上面的xml解析器中，即上面的jar包中，配置如下
Document Builder Factory:org.apache.xerces.jaxp.DocumentBuilderFactoryImpl
SAX Parser Factory:org.apache.xerces.jaxp.SAXParserFactoryImpl
Transformer Factory:org.apache.xalan.processor.TransformerFactoryImpl
2、点击apply
3、如果在myeclipse中启动weblogic8，那么还需要做如下配置，启动后的weblogic8才能支持GBK，进入到window->preferences->MyEclipse->Application Server->weblogic8->paths将Xerces.jar和Xalan.jar的路径加入到prepend to classpath中

 

Cognos 集成jar

 

以下jar包的api：
axis.jar 
axisCrnpClient.jar 
axisCognosClient.jar 
commons-discovery.jar 
commons-logging.jar 
jaxrpc.jar 
saaj.jar 
wsdl4j.jar
xercesImpl.jar 
xml-apis.jar
dom4j.jar
xalan.jar