package com.oying.modules.hwc.utils;
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import com.oying.exception.BadRequestException;
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import org.dom4j.Document;
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import org.dom4j.Element;
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import org.dom4j.io.SAXReader;
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import org.xml.sax.InputSource;
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import javax.servlet.ServletInputStream;
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import javax.servlet.http.HttpServletRequest;
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import java.io.BufferedReader;
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import java.io.ByteArrayInputStream;
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import java.io.InputStreamReader;
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import java.util.*;
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/**
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* ClassName:Xml
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* Function: XML的工具方法
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* Date: 2014-8-10 下午10:48:21
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*/
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@SuppressWarnings({"rawtypes", "unchecked"})
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public class XmlUtils {
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/**
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* <一句话功能简述>
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* <功能详细描述>request转字符串
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*
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* @see [类、类#方法、类#成员]
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*/
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public static String parseRequest(HttpServletRequest request) {
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StringBuilder body = new StringBuilder();
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try {
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ServletInputStream inputStream = request.getInputStream();
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BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
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while (true) {
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String info = br.readLine();
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if (info == null) {
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break;
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}
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if (body.length() == 0) {
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body = new StringBuilder(info);
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} else {
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body.append(info);
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}
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}
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} catch (Exception e) {
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throw new BadRequestException("读取数据流异常：" + e.getMessage());
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}
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return body.toString();
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}
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public static String parseXML(SortedMap<String, String> parameters) {
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StringBuilder sb = new StringBuilder();
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sb.append("<xml>");
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Set es = parameters.entrySet();
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for (Object e : es) {
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Map.Entry entry = (Map.Entry) e;
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String k = (String) entry.getKey();
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String v = (String) entry.getValue();
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if (null != v && !v.isEmpty() && !"appkey".equals(k)) {
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sb.append("<").append(k).append(">").append(parameters.get(k)).append("</").append(k).append(">\n");
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}
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}
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sb.append("</xml>");
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return sb.toString();
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}
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/**
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* 从request中获得参数Map，并返回可读的Map
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*/
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public static SortedMap getParameterMap(HttpServletRequest request) {
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// 参数Map
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Map properties = request.getParameterMap();
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// 返回值Map
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SortedMap returnMap = new TreeMap();
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Iterator entries = properties.entrySet().iterator();
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Map.Entry entry;
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String name;
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String value = "";
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while (entries.hasNext()) {
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entry = (Map.Entry) entries.next();
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name = (String) entry.getKey();
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Object valueObj = entry.getValue();
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if (null == valueObj) {
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value = "";
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} else if (valueObj instanceof String[]) {
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String[] values = (String[]) valueObj;
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for (String s : values) {
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value = s + ",";
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}
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value = value.substring(0, value.length() - 1);
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} else {
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value = valueObj.toString();
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}
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returnMap.put(name, value.trim());
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}
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returnMap.remove("method");
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return returnMap;
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}
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/**
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* 转XML map
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*/
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public static Map<String, String> toMap(byte[] xmlBytes, String charset) throws Exception {
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SAXReader reader = new SAXReader(false);
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InputSource source = new InputSource(new ByteArrayInputStream(xmlBytes));
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source.setEncoding(charset);
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Document doc = reader.read(source);
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return XmlUtils.toMap(doc.getRootElement());
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}
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/**
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* 转MAP
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*/
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public static Map<String, String> toMap(Element element) {
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Map<String, String> rest = new HashMap<>();
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List<Element> els = element.elements();
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for (Element el : els) {
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rest.put(el.getName().toLowerCase(), el.getTextTrim());
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}
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return rest;
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}
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public static String toXml(Map<String, String> params) {
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StringBuilder buf = new StringBuilder();
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List<String> keys = new ArrayList<>(params.keySet());
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Collections.sort(keys);
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buf.append("<xml>");
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for (String key : keys) {
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buf.append("<").append(key).append(">");
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buf.append("<![CDATA[").append(params.get(key)).append("]]>");
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buf.append("</").append(key).append(">\n");
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}
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buf.append("</xml>");
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return buf.toString();
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}
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}
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