微信在线视频系统JAVA源码

package net.xdclass.xdvideo.utils; import org.w3c.dom.Entity; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.transform.OutputKeys; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import java.io.ByteArrayInputStream; import java.io.InputStream; import java.io.StringWriter; import java.util.*; /** * 微信支付工具类，xml转map,map转xml，生成签名 */ public class WXPayUtil { /** * XML格式字符串转换为Map * * @param strXML XML字符串 * @return XML数据转换后的Map * @throws Exception */ public static Map<String, String> xmlToMap(String strXML) throws Exception { try { Map<String, String> data = new HashMap<String, String>(); DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder(); InputStream stream = new ByteArrayInputStream(strXML.getBytes("UTF-8")); org.w3c.dom.Document doc = documentBuilder.parse(stream); doc.getDocumentElement().normalize(); NodeList nodeList = doc.getDocumentElement().getChildNodes(); for (int idx = 0; idx < nodeList.getLength(); ++idx) { Node node = nodeList.item(idx); if (node.getNodeType() == Node.ELEMENT_NODE) { org.w3c.dom.Element element = (org.w3c.dom.Element) node; data.put(element.getNodeName(), element.getTextContent()); } } try { stream.close(); } catch (Exception ex) { // do nothing } return data; } catch (Exception ex) { throw ex; } } /** * 将Map转换为XML格式的字符串 * * @param data Map类型数据 * @return XML格式的字符串 * @throws Exception */ public static String mapToXml(Map<String, String> data) throws Exception { DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder documentBuilder= documentBuilderFactory.newDocumentBuilder(); org.w3c.dom.Document document = documentBuilder.newDocument(); org.w3c.dom.Element root = document.createElement("xml"); document.appendChild(root); for (String key: data.keySet()) { String value = data.get(key); if (value == null) { value = ""; } value = value.trim(); org.w3c.dom.Element filed = document.createElement(key); filed.appendChild(document.createTextNode(value)); root.appendChild(filed); } TransformerFactory tf = TransformerFactory.newInstance(); Transformer transformer = tf.newTransformer(); DOMSource source = new DOMSource(document); transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); StringWriter writer = new StringWriter(); StreamResult result = new StreamResult(writer); transformer.transform(source, result); String output = writer.getBuffer().toString(); //.replaceAll("\n|\r", ""); try { writer.close(); } catch (Exception ex) { } return output; } /** * 生成微信支付sign * @return */ public static String createSign(SortedMap<String, String> params, String key){ StringBuilder sb = new StringBuilder(); Set<Map.Entry<String, String>> es = params.entrySet(); Iterator<Map.Entry<String,String>> it = es.iterator(); //生成 stringA="appid=wxd930ea5d5a258f4f&body=test&device_info=1000&mch_id=10000100&nonce_str=ibuaiVcKdpRxkhJA"; while (it.hasNext()){ Map.Entry<String,String> entry = (Map.Entry<String,String>)it.next(); String k = (String)entry.getKey(); String v = (String)entry.getValue(); if(null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)){ sb.append(k+"="+v+"&"); } } sb.append("key=").append(key); String sign = CommonUtils.MD5(sb.toString()).toUpperCase(); return sign; } /** * 校验签名 * @param params * @param key * @return */ public static boolean isCorrectSign(SortedMap<String, String> params, String key){ String sign = createSign(params,key); String weixinPaySign = params.get("sign").toUpperCase(); return weixinPaySign.equals(sign); } /** * 获取有序map * @param map * @return */ public static SortedMap<String,String> getSortedMap(Map<String,String> map){ SortedMap<String, String> sortedMap = new TreeMap<>(); Iterator<String> it = map.keySet().iterator(); while (it.hasNext()){ String key = (String)it.next(); String value = map.get(key); String temp = ""; if( null != value){ temp = value.trim(); } sortedMap.put(key,temp); } return sortedMap; } }