java 调用wsdl接口同时将返回数据解析成json
package com.haiersoft.ushequmobile.utils; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.StringReader; import java.util.List; import java.util.Map; import javax.xml.soap.MessageFactory; import javax.xml.soap.SOAPBody; import javax.xml.soap.SOAPElement; import javax.xml.soap.SOAPEnvelope; import javax.xml.soap.SOAPException; import javax.xml.soap.SOAPMessage; import javax.xml.soap.SOAPPart; import org.apache.commons.httpclient.HttpClient; import org.apache.commons.httpclient.HttpStatus; import org.apache.commons.httpclient.methods.InputStreamRequestEntity; import org.apache.commons.httpclient.methods.PostMethod; import org.apache.commons.httpclient.methods.RequestEntity; import org.apache.log4j.Logger; import org.jdom2.Document; import org.jdom2.Element; import org.jdom2.input.SAXBuilder; import org.xml.sax.InputSource; import com.alibaba.fastjson.JSONArray; import com.alibaba.fastjson.JSONObject; public class WSWorker { private static Logger logger = Logger.getLogger(WSWorker.class.getName()); /** * 返回JSONArray格式的结果 * * params中如果同一个层次有重名元素，需要将重名元素放到list中，key不变，value使用新的list * @param prefix 方法前缀 * @param methodName 方法名 * @param ns 命名空间 * @param params 参数 * @param wsdl wsdl * @return * @throws SOAPException 生成soap报文时发生异常 */ public static JSONArray performRequest(String prefix, String methodName, String ns, Map<String, Object> params, String wsdl) throws SOAPException { return parseXML(getSOAPMessage(prefix, methodName, ns, params, wsdl)); } /** * * @param prefix 方法前缀 * @param methodName 方法名 * @param ns 命名空间 * @param params 参数 * @param wsdl wsdl * @return * @throws SOAPException * @throws IOException */ @SuppressWarnings("unchecked") private static String getSOAPMessage(String prefix, String methodName, String ns, Map<String, Object> params, String wsdl) throws SOAPException { MessageFactory messageFactory = MessageFactory.newInstance(); SOAPMessage message = messageFactory.createMessage(); message.setProperty(SOAPMessage.CHARACTER_SET_ENCODING, "UTF-8"); SOAPPart soapPart = message.getSOAPPart();// 创建soap部分 SOAPEnvelope envelope = soapPart.getEnvelope(); envelope.setAttribute("xmlns:" + prefix, ns); SOAPBody body = envelope.getBody(); SOAPElement bodyElement = body.addChildElement(envelope.createName(methodName, prefix, "")); if (null != params) { for (Map.Entry<String, Object> entry : params.entrySet()) { if (entry.getValue() instanceof Map) { SOAPElement inputParam = bodyElement.addChildElement(entry.getKey()); addParams((Map<String, Object>)entry.getValue(), inputParam); } else if (entry.getValue() instanceof String) { bodyElement.addChildElement(entry.getKey()).addTextNode((String)entry.getValue()); } else if (entry.getValue() instanceof List) { for(Object item : (List)entry.getValue()) { SOAPElement inputParam = bodyElement.addChildElement(entry.getKey()); addParams((Map<String, Object>)item, inputParam); } } else if (entry.getValue() instanceof Integer || entry.getValue() instanceof Long || entry.getValue() instanceof Double || entry.getValue() instanceof Short || entry.getValue() instanceof Float) { bodyElement.addChildElement(entry.getKey()).addTextNode(String.valueOf(entry.getValue())); } } } message.saveChanges(); String xmlString = ""; try { xmlString = getXMLMessage(message); // logger.debug(xmlString); } catch (IOException e) { e.printStackTrace(); } return getResultFromWebService(xmlString, wsdl); }
@SuppressWarnings("unchecked") private static void addParams(Map<String, Object> params, SOAPElement parentElement) throws SOAPException { if (null != params) { for (Map.Entry<String, Object> entry : params.entrySet()) { if (entry.getValue() instanceof Map) { SOAPElement element = parentElement.addChildElement(entry.getKey()); addParams((Map<String, Object>)entry.getValue(), element); } else if (entry.getValue() instanceof String) { parentElement.addChildElement(entry.getKey()).addTextNode((String)entry.getValue()); } else if (entry.getValue() instanceof List) { for(Object item : (List)entry.getValue()) { SOAPElement inputParam = parentElement.addChildElement(entry.getKey()); addParams((Map<String, Object>)item, inputParam); } } } } } private static String getXMLMessage(SOAPMessage msg) throws SOAPException, IOException { ByteArrayOutputStream baos = new ByteArrayOutputStream(); msg.writeTo(baos); String str = baos.toString("utf-8"); baos.close(); return str; } /** * 请求WebService获取结果 * * @param xml * @param endPoint * @return */ private static String getResultFromWebService(String xml, String endPoint) { String result = ""; // 创建连接实例 PostMethod postMethod = new PostMethod(endPoint); try { byte[] b = xml.getBytes("utf-8"); InputStream is = new ByteArrayInputStream(b, 0, b.length); RequestEntity re = new InputStreamRequestEntity(is, b.length, "text/xml; charset=utf-8"); postMethod.setRequestEntity(re); HttpClient httpClient = new HttpClient(); // 执行 int statusCode = httpClient.executeMethod(postMethod); // 判断是否执行成功 if (statusCode != HttpStatus.SC_OK) { logger.error("Method failed: " + postMethod.getStatusLine()); } else { // 返回数据 result = postMethod.getResponseBodyAsString(); } } catch (Exception e) { e.printStackTrace(); } finally { // 释放连接，无论执行方法是否成功，都必须释放连接。 if (postMethod != null) { postMethod.releaseConnection(); } } // logger.debug("结果：" + result); return result; } /** * 解析xml字符串 * * @param xmlDoc * 调用wsdl返回的数据 * @return 请求结果，如果网络连接失败，返回null */ private static JSONArray parseXML(String xmlDoc) { JSONArray resultArray = null; StringReader read = new StringReader(xmlDoc); // 创建新的输入源SAX 解析器将使用 InputSource 对象来确定如何读取 XML 输入 InputSource source = new InputSource(read); // 创建一个新的SAXBuilder SAXBuilder sb = new SAXBuilder(); // List infoList = new ArrayList(); try { // 通过输入源构造一个Document Document doc = sb.build(source); // 取的根元素 Element root = doc.getRootElement(); // 得到根元素所有子元素的集合 // Namespace ns = root.getNamespace(); List<Element> bodyList = root.getChildren(); if (bodyList != null && bodyList.size() > 0) { Element body = (Element) bodyList.get(0);// Body List<Element> responses = body.getChildren(); if (responses != null && responses.size() > 0) { Element response = (Element) responses.get(0); List<Element> results = response.getChildren(); if (results != null && results.size() > 0) { resultArray = new JSONArray(); for (int i = 0; i < results.size(); i++) { Element result = (Element) results.get(i); resultArray.add(convertToJSONOrText(result)); } } } } } catch (Exception e) { e.printStackTrace(); } return resultArray; } private static Object convertToJSONOrText(Element item) { List<Element> elements = item.getChildren(); if(elements.size() != 0) { JSONObject map = new JSONObject(); for(Element element : elements) { int count = 0; String key = element.getName(); //有些接口，返回的数据是重名的 if(map.containsKey(key)) { count = getSameKeyCount(map, key); if(0 != count) { if(1 == count) { key = element.getName() + "_@@_start_" + count; } else { key = element.getName() + "_@@_" + count; } } } map.put(key, convertToJSONOrText1(element)); } map = reformatMap(map); return map; } else { return item.getText(); } } private static Object convertToJSONOrText1(Element item) { List<Element> elements = item.getChildren(); if(elements.size() != 0) { JSONObject map = new JSONObject(); for(Element element : elements) { int count = 0; String key = element.getName(); //有些接口，返回的数据是重名的 if(map.containsKey(key)) { count = getSameKeyCount(map, key); if(0 != count) { if(1 == count) { key = element.getName() + "_@@_start_" + count; } else { key = element.getName() + "_@@_" + count; } } } map.put(key, convertToJSONOrText1(element)); } map = reformatMap(map); return map; } else { return item.getText(); } } /** * map中以key为开始的条目数量 * @param map * @return */ private static int getSameKeyCount(JSONObject map, String key) { int count = 0; for(Map.Entry<String, Object> tmp : map.entrySet()) { if(tmp.getKey().startsWith(key)) { count++; } } return count; } /** * 将带索引的key对应的数据下移一层 * @param map */ private static JSONObject reformatMap(JSONObject map) { JSONObject result = new JSONObject(); for(Map.Entry<String, Object> entry : map.entrySet()) { //当前key还有后续带索引的数据 String key = entry.getKey(); if(map.containsKey(key+"_@@_start_1")) { JSONArray array = new JSONArray(); array.add(map.get(key)); array.add(map.get(key+"_@@_start_1")); int size = map.entrySet().size(); for(int i=2; i<size; i++) { Object object = map.get(key + "_@@_" + i); if(null != object) { array.add(object); } } result.put(key, array); } else if(-1 == key.indexOf("_@@_")) { result.put(key, entry.getValue()); } } return result; } }
非原创，来源于项目工程
