com.hupubao.common.http.utils.XmlUtils Maven / Gradle / Ivy
/*
* Copyright 2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hupubao.common.http.utils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* @author ysdxz207
* @date 2018-07-12
*
* xml解析工具
*/
public class XmlUtils {
private static class El implements Serializable {
private static final long serialVersionUID = -1016024230871811400L;
private int level = 0;
private String text = "";
private String tagName;
private List children = new ArrayList<>();
public El() {
}
public El(String tagName) {
this.tagName = tagName;
}
public String html() {
return getHtml(this);
}
private String getHtml(El el) {
String blank = blank(el.level);
boolean hasChildren = !el.children.isEmpty();
StringBuilder sb = new StringBuilder(blank + "<" + el.tagName + ">" + (hasChildren ? "\n" : ""));
if (hasChildren) {
for (El child :
el.children) {
sb.append(getHtml(child));
}
sb.append(blank);
sb.append("\n");
return sb.toString();
}
sb.append(el.text);
sb.append(" ");
sb.append("\n");
return sb.toString();
}
private String blank(int level) {
if (level <= 0) {
return "";
}
return String.format("%-" + level * 4 + "s", "");
}
private String appendEnter(String str) {
if (StringUtils.isBlank(str)) {
return "\n";
}
if (str.endsWith("\n")) {
return str;
}
return str + "\n";
}
public El append(String tagName) {
El child = new El(tagName);
child.level = level + 1;
this.children.add(child);
return child;
}
public void text(String text,
boolean addXmlCDATA) {
this.text = addXmlCDATA ? "" : text;
}
}
/**
* @param extractXMLCDATA 是否提取CDATA值
* @return
* @throws UnsupportedJsonFormatException
*/
public static Object xmlToJson(String xml,
boolean extractXMLCDATA) throws UnsupportedJsonFormatException {
Object result = null;
try {
result = JSON.parse(xml);
} catch (Exception ignored) {
}
if (result == null) {
Element element = Jsoup.parse(xml).body();
result = elementToJson(element, extractXMLCDATA);
}
if (result == null) {
throw new UnsupportedJsonFormatException("Can not convert to json.");
}
return result;
}
/**
* Json转xml
*
* @param rootTagName
* @param json Json对象字符串
* @return
*/
public static String jsonToXml(String rootTagName,
String json,
boolean addXMLCDATA) {
if (StringUtils.isEmpty(json)) {
return "";
}
rootTagName = StringUtils.isBlank(rootTagName) ? "root" : rootTagName;
El root = new El(rootTagName);
convertJsonToElement(root, JSON.parseObject(json), addXMLCDATA);
return root.html();
}
private static void convertJsonToElement(El parentEl,
JSONObject json,
boolean addXMLCDATA) {
if (json == null) {
return;
}
for (Map.Entry entry : json.entrySet()) {
Object key = entry.getKey();
Object value = entry.getValue();
El el = parentEl.append((String) key);
if (value instanceof JSONObject) {
convertJsonToElement(el, (JSONObject) value, addXMLCDATA);
} else {
el.text(value == null ? "" : value.toString(), addXMLCDATA);
}
}
}
/**
* @param element
* @return
*/
private static Object elementToJson(Element element,
boolean extractXMLCDATA) {
JSONObject json = new JSONObject();
Elements children = element.children();
int childSize = children.size();
if (childSize == 0) {
return extractXMLCDATA ? element.text() : element.html();
} else {
for (Element e : element.children()) {
json.put(e.tagName(), elementToJson(e, extractXMLCDATA));
}
return json;
}
}
private static class UnsupportedJsonFormatException extends RuntimeException {
private static final long serialVersionUID = 2515892027385048310L;
UnsupportedJsonFormatException(String message) {
super(message);
}
}
}