poi 导出word,导出表格（复杂表格合并行列）解决方法
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如下图：一个table表格，需要作为表格插入到word中；
1、首先对表格做拆分处理
代码如下：
private String simplifyTable(String tableContent) {
if(StringUtils.isEmpty(tableContent)) return null;
Document tableDoc = Jsoup.parse(tableContent);
Elements trElements = tableDoc.getElementsByTag("tr");
if(trElements !=null){
Iterator<Element> eleIterator = trElements.iterator();
Integer rowNum = 0;
// 针对于colspan操作
while(eleIterator.hasNext()){
rowNum ++;
Element trElement = eleIterator.next();
//去除所有样式
trElement.removeAttr("class");
Elements tdElements = trElement.getElementsByTag("td");
List<Element> tdEleList = covertElements2List(tdElements);
for(int i=0;i<tdEleList.size();i++){
Element curTdElement = tdEleList.get(i);
//去除所有样式
curTdElement.removeAttr("class");
Element ele = curTdElement.clone();
String colspanValStr = curTdElement.attr("colspan");
if(!StringUtils.isEmpty(colspanValStr)){
ele.removeAttr("colspan");
Integer colspanVal = Integer.parseInt(colspanValStr);
for(int k=0;k<colspanVal-1;k++){
curTdElement.after(ele.outerhtml());
}
}
}
}
// 针对于rowspan操作
List<Element> trEleList = covertElements2List(trElements);
Element firstTrEle = trElements.first();
Elements tdElements = firstTrEle.getElementsByTag("td");
Integer tdCount = tdElements.size();
for(int i=0;i<tdElements.size();i++){ //获取该列下所有单元格
for(Element trElement:trEleList){
List<Element> tdElementList = covertElements2List(trElement.getElementsByTag("td"));
try{
tdElementList.get(i);
}catch(Exception e){
continue;
}
Node curTdNode = tdElementList.get(i);
Node cNode = curTdNode.clone();
String rowspanValStr = curTdNode.attr("rowspan");
if(!StringUtils.isEmpty(rowspanValStr)){
cNode.removeAttr("rowspan");
Element nextTrElement = trElement.nextElementSibling();
Integer rowspanVal = Integer.parseInt(rowspanValStr);
for(int j=0;j<rowspanVal-1;j++){
Node tempNode = cNode.clone();
List<Node> nodeList = new ArrayList<Node>();
nodeList.add(tempNode);
if(j > 0)
nextTrElement = nextTrElement.nextElementSibling();
Integer indexNum = i+1;
if(i == 0) indexNum = 0;
if(indexNum == tdCount) nextTrElement.appendChild(tempNode);
else nextTrElement.insertChildren(indexNum,nodeList);
}
}
}
}
}
Element tableEle = tableDoc.getElementsByTag("table").first();
String tableHtml = tableEle.outerHtml();
return tableHtml;
}
private static List<Element> covertElements2List(Elements curElements){
List<Element> elementList = new ArrayList<Element>();
Iterator<Element> eleIterator = curElements.iterator();
while(eleIterator.hasNext()){
Element curlement = eleIterator.next();
elementList.add(curlement);
}
return elementList;
}处理后的表格会稍有变形，如下图：
2、将处理后的表格写入word
String tableHtmlStr = ele.outerHtml();
System.out.println(tableHtmlStr);
String simpleTableHtml = simplifyTable(tableHtmlStr);
System.out.println(simpleTableHtml);
Document tableDoc = Jsoup.parse(simpleTableHtml);
Elements trList = tableDoc.getElementsByTag("tr");
Elements tdList = trList.get(0).getElementsByTag("td");
XWPFTable xwpfTable = document.createTable(trList.size(),tdList.size());
Map<String,Boolean>[][] array = new Map[trList.size()][tdList.size()];
for (int row = 0; row < trList.size(); row++) {
Element trElement = trList.get(row);
Elements tds = trElement.getElementsByTag("td");
for(int col = 0; col < tds.size(); col++) {
Element colElement = tds.get(col);
String colspan = colElement.attr("colspan");
String rowspan = colElement.attr("rowspan");
String style = colElement.attr("style");
StringBuilder styleSB = new StringBuilder();
if(!StringUtils.isEmpty(colspan)){
int colCount = Integer.parseInt(colspan);
for(int i=0;i<colCount-1;i++){
array[row][col+i+1] = new HashMap<String, Boolean>();
array[row][col+i+1].put("mergeCol", true);
}
}
if(!StringUtils.isEmpty(rowspan)){
int rowCount = Integer.parseInt(rowspan);
for(int i=0;i<rowCount-1;i++){
array[row+i+1][col] = new HashMap<String, Boolean>();
array[row+i+1][col].put("mergeRow", true);
}
}
XWPFTableCell tableCell = xwpfTable.getRow(row).getCell(col);
if(StringUtils.isEmpty(colspan)){
if(col == 0){
if(tableCell.getCTTc().getTcPr() == null){
tableCell.getCTTc().addNewTcPr().addNewHMerge().setVal(STMerge.RESTART);
}else{
if(tableCell.getCTTc().getTcPr().getHMerge() == null){
tableCell.getCTTc().getTcPr().addNewHMerge().setVal(STMerge.RESTART);
}else{
tableCell.getCTTc().getTcPr().getHMerge().setVal(STMerge.RESTART);
}
}
}else{
if(array[row][col]!=null && array[row][col].get("mergeCol")!=null && array[row][col].get("mergeCol")){
if(tableCell.getCTTc().getTcPr() == null){
tableCell.getCTTc().addNewTcPr().addNewHMerge().setVal(STMerge.CONTINUE);
}else{
if(tableCell.getCTTc().getTcPr().getHMerge() == null){
tableCell.getCTTc().getTcPr().addNewHMerge().setVal(STMerge.CONTINUE);
}else{
tableCell.getCTTc().getTcPr().getHMerge().setVal(STMerge.CONTINUE);
}
}
continue;
}else{
if(tableCell.getCTTc().getTcPr() == null){
tableCell.getCTTc().addNewTcPr().addNewHMerge().setVal(STMerge.RESTART);
}else{
if(tableCell.getCTTc().getTcPr().getHMerge() == null){
tableCell.getCTTc().getTcPr().addNewHMerge().setVal(STMerge.RESTART);
}else{
tableCell.getCTTc().getTcPr().getHMerge().setVal(STMerge.RESTART);
}
}
}
}
}else{
if(tableCell.getCTTc().getTcPr() == null){
tableCell.getCTTc().addNewTcPr().addNewHMerge().setVal(STMerge.RESTART);
}else{
if(tableCell.getCTTc().getTcPr().getHMerge() == null){
tableCell.getCTTc().getTcPr().addNewHMerge().setVal(STMerge.RESTART);
}else{
tableCell.getCTTc().getTcPr().getHMerge().setVal(STMerge.RESTART);
}
}
}
if(StringUtils.isEmpty(rowspan)){
if(array[row][col]!=null && array[row][col].get("mergeRow")!=null && array[row][col].get("mergeRow")){
if(tableCell.getCTTc().getTcPr() == null){
tableCell.getCTTc().addNewTcPr().addNewVMerge().setVal(STMerge.CONTINUE);
}else{
if(tableCell.getCTTc().getTcPr().getVMerge() == null){
tableCell.getCTTc().getTcPr().addNewVMerge().setVal(STMerge.CONTINUE);
}else{
tableCell.getCTTc().getTcPr().getVMerge().setVal(STMerge.CONTINUE);
}
}
continue;
}else{
if(tableCell.getCTTc().getTcPr() == null){
tableCell.getCTTc().addNewTcPr().addNewVMerge().setVal(STMerge.RESTART);
}else{
if(tableCell.getCTTc().getTcPr().getVMerge() == null){
tableCell.getCTTc().getTcPr().addNewVMerge().setVal(STMerge.RESTART);
}else{
tableCell.getCTTc().getTcPr().getVMerge().setVal(STMerge.RESTART);
}
}
}
}else{
if(tableCell.getCTTc().getTcPr() == null){
tableCell.getCTTc().addNewTcPr().addNewVMerge().setVal(STMerge.RESTART);
}else{
if(tableCell.getCTTc().getTcPr().getVMerge() == null){
tableCell.getCTTc().getTcPr().addNewVMerge().setVal(STMerge.RESTART);
}else{
tableCell.getCTTc().getTcPr().getVMerge().setVal(STMerge.RESTART);
}
}
}
tableCell.removeParagraph(0);
XWPFParagraph paragraph = tableCell.addParagraph();
paragraph.setStyle(styleSB.toString());
if(!StringUtils.isEmpty(style) && style.contains("text-align:center")){
paragraph.setAlignment(ParagraphAlignment.CENTER);
}
XWPFRun run = paragraph.createRun();
run.setText(colElement.text());
}
}写入word后表格如下图：
注：上述内容处理的表格为html代码的table表格
本文出自 “BrightAries” 博客，谢绝转载！
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