java完整的webService客户端之soap+xml请求，dom4j解析返回报文xml

 

package com.zhw.test;

 

 

import java.io.BufferedReader;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import java.util.Collections;

import java.util.Iterator;

import java.util.List;

 

import javax.xml.bind.DatatypeConverter;

 

import org.apache.commons.lang.StringUtils;

import org.dom4j.Document;

import org.dom4j.DocumentException;

import org.dom4j.DocumentHelper;

import org.dom4j.Element;

import org.dom4j.xpath.DefaultXPath;

 

 

 

public class Test20 {

public static void main(String[] args) throws IOException, DocumentException {

StringBuffer result = null;

//此地址为别人提供的地址（替换即可）

String urlString = "http://xxxxx:8000/sap/bc/srt/rfc/sap/d_010/500/d_11111/zsd_11111?sap-client=500";

URL url = new URL(urlString);

HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();

System.out.println(httpConn);

//拼接请求体（注意拼接请求参数xml的时候一定根据提供的格式拼接，""的地方要用转义字符隔开\）

String soap=""+

""

+""

+" "

+" "

+" "

+" "

+" "

+" "

+" "

+""

+" "

+" "

+" "

+" "

+""

+""

+" "

+" "

+""

+" "

+""

+" 1000116"

+" 1300"

+" "

+" "

+" "

+" "

+"";

byte[] buf = soap.getBytes();

//设置一些头参数

httpConn.setRequestProperty("Content-Length", String.valueOf(buf.length));

httpConn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");

//用户授权不然（401未授权）

String encoding = DatatypeConverter.printBase64Binary(("COMzjj:admin1234").getBytes("UTF-8"));

httpConn.setRequestProperty("Authorization", "Basic " + encoding);

httpConn.setRequestMethod("POST");

httpConn.setDoOutput(true);

httpConn.setDoInput(true);

OutputStream out = httpConn.getOutputStream();

out.write(buf);

out.close();

System.out.println(out);

System.out.println("HTTP Response code is " + httpConn.getResponseCode());

InputStreamReader isr = new InputStreamReader(

httpConn.getInputStream(), "utf-8");

BufferedReader inReader = new BufferedReader(isr);

System.out.println("返回数据:"+inReader);

String inputLine;

result = new StringBuffer();

while ((inputLine = inReader.readLine()) != null) {

result.append(inputLine);

}

//获取返回的soap型消息xml数据

System.out.println(result);

//下面利用 dom4j的只是来解析这个xml

Document doc = DocumentHelper.parseText(result.toString());

//找到所取参数的节点//+节点的名字

DefaultXPath xpath = new DefaultXPath("//CREDITEXPOSURE");

//找到该节点的命名空间xmlns:后面的两个参数

xpath.setNamespaceURIs(Collections.singletonMap("n0","urn:sap-com:document:sap:rfc:functions"));

List list = xpath.selectNodes(doc);

//遍历结果找到节点里面的内容（迭代器遍历）

Iterator iterator = list.iterator();

while (iterator.hasNext()) {

Element node = (Element) iterator.next();

System.out.println("获取到的节点上的数据:"+node.getText());

}

}

 

}

下面是控制台的打印结果：

 

（post请求参数的request）

1000116 1300

HTTP Response code is 200（200为成功，401为未授权没有进行用户名密码校验，500为没有该服务检查下url地址的正确性）

返回数据:java.io.BufferedReader@b97cf78

（post请求返回的报文response）

100011613000.00.00.00.010001161300

（最后解析得到所需要的数据）

获取到的节点上的数据:0.0