使用webservice中使用的类型可以是好多种，string、element、document等等甚至可以使对象！

　　我使用element来传输xml文件，写了一个文件，源码如下

import java.io.Reader;
import java.io.StringReader;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.apache.xpath.XPathAPI;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;
/**
工单查询接口 boos提供serialNumber、serviceNum输入参数
@author joypen
 */
public class WidebandBusinessQueryService {
  // 提供的查询方法
  public Element queryWideband(Element requestXml) throws Exception {
  Map map = this.databaseMethod(requestXml);
  String responseXml = this.dealResponseXml(map);
  System.out.println("111 "+responseXml);
  Document doc = null;
      Reader strreader=new StringReader(responseXml);
      DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
      doc = builder.parse(new InputSource(strreader));
  return  doc.getDocumentElement();
  }
  // 连接数据库，并且执行sql语句
  private Map databaseMethod(Element requestXml) {
  Connection conn = null;
  PreparedStatement ps = null;
  ResultSet rs = null;
  Map map = null;
  String serialNumber = null;
  String serviceNum = null;
  try {
      map = this.parseXml(requestXml);
      serialNumber = (String) map.get("SERIALNUMBER");
      serviceNum = (String) map.get("SERVICENUM");
      if(TextUtil.isNull(serialNumber) || "".equals(serialNumber) || TextUtil.isNull(serviceNum) || "".equals(serviceNum)){
          map.put("ERRORCODE", "1");
          map.put("DESCRIPTION", "SERIALNUMBER OR SERVICENUM IS WORING!");
      }else{
          conn = Helper.getDBCnn();
          conn.setAutoCommit(false);
          String sqlString = this.sqlQueryString(serialNumber, serviceNum);
          ps = conn.prepareStatement(sqlString);
          rs = ps.executeQuery();
          map = this.dealResult(rs);
      }
  } catch (Exception e) {
      System.out.print("WidebandBusinessQueryService--数据库连接出错！");
      e.printStackTrace();
  }finally{
      try {
          rs = null;
          ps = null;
          if(conn!=null){
              conn.setAutoCommit(true);
              conn.close();
          }
      } catch (SQLException e) {
          e.printStackTrace();
      }
  }
  return map;
  }
  // 拼接sql语句
  private String sqlQueryString(String serialNumber, String serviceNum) {
  StringBuffer sql = new StringBuffer();
  sql.append("select * from t_pbb_open_main where SERIALNUMBER = +serialNumber+ and SERVICE_NUM = +serviceNum+ ");
  return sql.toString();
  }
  // 处理返回的结果集
  private Map dealResult(ResultSet rs) {
  HashMap map = null;
  try {
      map = new HashMap();
      if(rs.next()){
          map.put("ERRORCODE", "0");
          map.put("SERIALNUMBER", rs.getString("SERIALNUMBER"));
          map.put("SERVICENUM", rs.getString("SERVICE_NUM"));
          map.put("FORMNO", rs.getString("FORM_NO"));
          map.put("STATE", rs.getString("PROCESS_STATE"));
          map.put("OPERATORNAME", rs.getString("SERVICE_NUM"));
      }else{
          map.put("ERRORCODE", "1");
          map.put("DESCRIPTION", "WITHOUT THIS RECORD!");
      }
  } catch (SQLException e) {
      e.printStackTrace();
  }
  return map;
  }
  // 解析xml，得到serialNumber和serviceNum
  private Map parseXml(Element requestXml) throws Exception {
  Map map = new HashMap();
      String serialNumber="";
      Node tmpNode = XPathAPI.selectSingleNode(requestXml, "//SERIALNUMBER");
      if (tmpNode != null)
      {
          Node txtNode = tmpNode.getFirstChild();
          if (txtNode != null)
              serialNumber = txtNode.getNodeValue();
      }
      String serviceNum="";
      tmpNode = XPathAPI.selectSingleNode(requestXml, "//SERVICENUM");
      if (tmpNode != null)
      {
          Node txtNode = tmpNode.getFirstChild();
          if (txtNode != null)
              serviceNum = txtNode.getNodeValue();
      }
      map.put("SERIALNUMBER", serialNumber);
      map.put("SERVICENUM", serviceNum);
  return map;
  }
  // 拼接responseXml
  private String dealResponseXml(Map responseMap) {
  String resultCode = (String) (TextUtil.isNull(responseMap.get("ERRORCODE")) ? "" : responseMap.get("ERRORCODE"));
  String serialNumber = (String) (TextUtil.isNull(responseMap.get("SERIALNUMBER")) ? "" : responseMap.get("SERIALNUMBER"));
  String serviceNum = (String) (TextUtil.isNull(responseMap.get("SERVICENUM")) ? "" : responseMap.get("SERVICENUM"));
  String formNo = (String) (TextUtil.isNull(responseMap.get("FORMNO")) ? "" : responseMap.get("FORMNO"));
  String description = (String) (TextUtil.isNull(responseMap.get("DESCRIPTION")) ? "" : responseMap.get("DESCRIPTION"));
  String time = (String) (TextUtil.isNull(responseMap.get("time")) ? "" : responseMap.get("time"));
  String state = (String) (TextUtil.isNull(responseMap.get("STATE")) ? "" : responseMap.get("STATE"));
  String operatorName = (String) (TextUtil.isNull(responseMap.get("OPERATORNAME")) ? "" : responseMap.get("OPERATORNAME"));
  String operatorPhone = (String) (TextUtil.isNull(responseMap.get("OPERATORPHONE")) ? "" : responseMap.get("OPERATORPHONE"));
  StringBuffer sb = new StringBuffer();
  sb.append("
");
        sb.append("
");
            sb.append(""+resultCode+"
");
            sb.append(""+serialNumber+"
");
            sb.append(""+serviceNum+"
");
            sb.append(""+formNo+"
");
            sb.append("响应时间
");
            sb.append("失败原因
");
                sb.append("
");
                    sb.append("当前环节
");
                    sb.append("操作人姓名
");
                    sb.append("操作人电话
");
                sb.append("
");
        sb.append("
");
        return sb.toString();
    }
    public static void main(String[] args) throws Exception {
        String reqeustXml = "321312陶宏辉请求时间";
        Document doc = null;
        Reader strreader=new StringReader(reqeustXml);
        DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        doc = builder.parse(new InputSource(strreader));
        Element responseXml = new WidebandBusinessQueryService().queryWideband(doc.getDocumentElement());
        String testXml = "";
        Node tempNode = XPathAPI.selectSingleNode(responseXml, "//OPERATORNAME");
        if(tempNode!=null){
            Node txtNode = tempNode.getFirstChild();
            if(txtNode!=null){
                testXml = txtNode.getTextContent();
            }
        }
        System.out.println("reqeust: "+reqeustXml);
        System.out.println("testXml: "+testXml);
    }
}