httpclient远程调用，返回xml

/**
     * 解析根据客户查询域名的xml返回域名信息
     * @param 调用客户编号查询域名xml。格式为：
     * <data>
     *      <method>domain</method>
     *        <dnion>
     *            <tGroup />
     *            <cGroup />
     *            <cusnumber>1300000741</cusnumber>
     *            <back>domain</back>
     *        </dnion>
     *</data>
     * yanglei
     * 2015.2.6
     * 得到的是一个map，key是域名id value是一个数组，[0]=类型，[1]=名称，[2]=后台客户id
*/
    public Map getDomainList(String cusnumber)throws CDNBandwidthAPIException {
        Map domainmap = new HashMap();
        //获取xml
        XmlDecryption xmldp = new XmlDecryption();
        String strXml =xmldp.XmlToString(xmldp.buildDomainnameXML(null , null , cusnumber));//根据buildDomainnameXML方法得到xml并且调用XmlToString方法转换成字符串
        if(strXml != null){
            //解析xml获取数据
            InputStream in = getBandwidthStream(strXml, 0);
            SAXBuilder saxbuilder = new SAXBuilder();
            if (null != in) {
                Document doc = null;
                try {
                    doc = saxbuilder.build(in);
                } catch (Exception e1) {
                    e1.printStackTrace();
                }
                
                Element root = doc.getRootElement();
                Element msg = root.getChild("msg");
                String code = msg.getChildTextTrim("code");
                if("100".equals(code)){
                    Element dnion = root.getChild("dnion");
                    Element detail = dnion.getChild("detail");
                    if(detail != null){
                        List<Element> clist = detail.getChildren();
                        for(int i = 0;i < clist.size();i++){
                            String id = clist.get(i).getAttributeValue("dnid");
                            String type = clist.get(i).getAttributeValue("dtype");
                            String name = clist.get(i).getAttributeValue("dname");
                            String custid = clist.get(i).getAttributeValue("custid");
                            String typename [] = new String[3];
                            typename[0] = type;
                            typename[1] = name;
                            typename[2] = custid;
                            domainmap.put(id, typename);
                        }
                    }
                }
            }
        }

        return domainmap;
    }

    
    /**
     * 调用CDN带宽查询接口返回流
     * @param xml 请求接口内容
     * @param times 请求次数。默认失败后休眠2秒后重复尝试一次
     * @return
     * @throws CDNBandwidthAPIException
     */
    public InputStream getBandwidthStream(String xml, int times) throws CDNBandwidthAPIException {
        String bandwidthclient_path = System.getProperty("bandwidthclient_path", "http://dcp.dnion.com/dayuDataReport.action");//调用远程服务器的DayuDataReportAction的execute方法
        HttpPost post = new HttpPost(bandwidthclient_path);//用post方式请求
        CloseableHttpClient httpclient = HttpClients.createDefault();
        StringEntity entity = new StringEntity(ParameraterEncryption.parameraterBlur(xml), "UTF-8");//parameraterBlur方法XML参数加密
        post.setEntity(entity);
        CloseableHttpResponse response = null;
        try {
            response = httpclient.execute(post);
            int result = response.getStatusLine().getStatusCode();
            if (result == 200) {
                InputStream iStream = response.getEntity().getContent();
                return iStream;
            } 
            else{
                throw new CDNBandwidthAPIException("Request cdn bandwidth api exception. Remote api return http status code: " + result + " 
 request body: " + xml);
            }
        } catch (IOException e) {
            //接口网络异常，休眠2s后重新尝试一次
            if(times < 1){
                Threads.sleep(2000);
                times++;
                return getBandwidthStream(xml, times);
            }
            e.printStackTrace();
            return null;
        }
        
    }

设置xml参数，将xml转换成String

package com.dnion.dayu.zk.cdnbusiness;

import java.io.IOException;
import java.io.StringWriter;

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;
  
public class XmlDecryption{  

    /**
     * 生成好带宽获取接口xml
     * @author yanglei
     * @date 2014.4.30
     * */
    public static Document buildBandwidthXML(String method,String begindate,String enddate,String domain,String outlay,String back){
        Element root = new Element("data");
        Document doc = new Document(root);
        Element method_element = new Element("method").setText(method);
        Element elements = new Element("dnion");
        elements.addContent(new Element("beginDate").setText(begindate));
        elements.addContent(new Element("endDate").setText(enddate));
        elements.addContent(new Element("domain").setText(domain));
        elements.addContent(new Element("outlay").setText(outlay));
        elements.addContent(new Element("back").setText(back));
        root.addContent(method_element);
        root.addContent(elements);
        return doc;
    }
   
    /**
     * 将jdom下的Document转换为xml字符串
     * @param document jdom下的Document
     * */
    public String XmlToString(Document document){ 
        Format format = Format.getPrettyFormat();      
        format.setEncoding("UTF-8");//设置编码格式   
          
        StringWriter out = new StringWriter();    //输出对象  
        String sReturn = ""; //输出字符串  
        XMLOutputter outputter = new XMLOutputter();   
        try {  
           outputter.output(document, out);  
        } catch (IOException e) {  
           e.printStackTrace();  
        }   
        sReturn = out.toString();   
        return sReturn;  
    } 
}