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package com.dsideal.base.Tools.Test;
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import com.dsideal.base.Tools.FillData.ExcelKit.ExcelKit;
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import org.dom4j.Document;
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import org.dom4j.DocumentException;
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import org.dom4j.Element;
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import org.dom4j.io.SAXReader;
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import java.io.File;
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import java.util.*;
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public class TestXml {
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public static void main(String[] args) throws DocumentException {
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String xml = "D:\\dsWork\\YunNanDsBase\\src\\main\\java\\com\\dsideal\\base\\Tools\\Test\\Sample.xml";
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//3、开始读取
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// 创建 SAXReader 对象，读取 XML 文件
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SAXReader reader = new SAXReader();
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Document document = reader.read(new File(xml));
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// 获取根元素
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Element root = document.getRootElement();
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//折线图
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//将xml用IDEA打开，搜索关键的数据值，然后右键查看XPATH完整路径可以获取到下面的路径
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///c:chartSpace/c:chart/c:plotArea/c:lineChart/c:ser/c:cat/c:numRef/c:numCache/c:pt/c:v
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//声明一个数组,图表的所有类型
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String[] CHART_TYPES = {"lineChart", "barChart"};//折线，柱状
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List<List<String>> tList = new ArrayList<>();
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List<Element> children = root.element("chart").element("plotArea").elements();//工作区
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List<Element> xList = new ArrayList<>();
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for (Element child : children) {
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//将CHART_TYPES数组转换为List
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List<String> CHART_TYPES_LIST = Arrays.asList(CHART_TYPES);
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if (CHART_TYPES_LIST.contains(child.getName())) {//如果当前遍历到的子元素是折线图或者柱状图
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//System.out.println("找到图表类型：" + child.getName());
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String type = child.getName();
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Element ce = root.element("chart").element("plotArea").element(type);
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for (int i = 0; i < ce.elements("ser").size(); i++) {
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Element ser = ce.elements("ser").get(i);
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//cat 标签
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Element cat = ser.element("cat");
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Element numRef = cat.element("numRef");
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//数据
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Element numCache = numRef.element("numCache");
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//多个数据组，xList一定是一样的，并且它是最全的
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if (xList.isEmpty()) {
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xList = numCache.elements("pt");
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//构造横向的年份列表
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List<String> yearList = new ArrayList<>();
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for (Element pt : xList) {
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String v = pt.element("v").getText();
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yearList.add(v);
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}
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//添加到横向的表中
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tList.add(yearList);
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}
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//======================================================
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//val标签
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Element val = ser.element("val");
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numRef = val.element("numRef");
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numCache = numRef.element("numCache");
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List<Element> yList = numCache.elements("pt");
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//将客观存在的索引号保存到HashMap中
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Map<String, String> existsMap = new HashMap<>();
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for (Element pt : yList) {
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String idx = pt.attribute("idx").getValue();
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String v = pt.element("v").getText();
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// 保留两位小数
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try {
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double d = Double.parseDouble(v);
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if (d == (int) d) {
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v = String.valueOf((int) d);
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} else {
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v = String.format("%.2f", d);
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}
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} catch (Exception err) {
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//do nothing
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}
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//是不是有效的，存在的数据，因为有的数据是未填写的
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if (!existsMap.containsKey(idx)) {
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existsMap.put(idx, v);
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}
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}
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//枚举一遍全的xList
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List<String> vList = new ArrayList<>();
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//首行就是年份行，它的size()就是标准宽度
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for (int j = 0; j < tList.getFirst().size(); j++) {
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vList.add(existsMap.getOrDefault(String.valueOf(j), null));
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}
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tList.add(vList);
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}
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}
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}
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//下面要实现行与列的转置
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// 创建一个一维列表，用于存储转换后的列
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List<List<String>> transposed = new ArrayList<>();
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//上面生成的数据格式需要行转列,横坐标是年份，纵坐标是数据
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int rowCount = tList.size();// 计算行数和列数
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int colCount = tList.getFirst().size();
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// 遍历每一列
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for (int col = 0; col < colCount; col++) {
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// 创建一个新的内部列表，用于存储当前列的所有行
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List<String> column = new ArrayList<>();
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// 遍历每一行，将当前列的值添加到新的内部列表中
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for (int row = 0; row < rowCount; row++) {
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String x = tList.get(row).get(col);
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column.add(x);
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}
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// 将当前列添加到结果列表中
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transposed.add(column);
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}
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//输出转置后的数据
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ExcelKit.printTable(transposed);
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}
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}
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