匯出Word工具類（根據資料動態生成並跨列）
阿新 • • 發佈：2021-07-13
package com.ksource.modules.common;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import net.sf.json.util.JSONTokener;
import org.apache.poi.xwpf.usermodel.*;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.*;
import org.springframework.stereotype.Component;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;
/**
* @author dxy
*
*/
@Component
public class ExportWordUtil {
public void createTable(String name, JSONArray json, HttpServletRequest request, HttpServletResponse response) throws Exception {
XWPFDocument xdoc = new XWPFDocument();
XWPFParagraph xp = xdoc.createParagraph();
xp.setSpacingBefore(0);
XWPFRun r = xp.createRun();
r.setText(name+"查詢資訊");
r.setFontFamily("宋體");
r.setFontSize(18);
r.setTextPosition(10);
r.setBold(true);
r.addBreak(); // 換行
xp.setAlignment(ParagraphAlignment.CENTER);
int sign = 0;
for(int i = 0; i < json.size(); i++){
JSONObject jsonObject = JSONObject.fromObject(json.get(i).toString());
if ("1".equals(jsonObject.get("flag").toString())){
sign = ++sign;
xdoc.createParagraph();
XWPFParagraph xp1 = xdoc.createParagraph();
XWPFRun r1 = xp1.createRun();
r1.setText((sign) +"."+ jsonObject.get("resourceName").toString());
r1.setFontFamily("宋體");
r1.setFontSize(16);
r1.setBold(true);
r1.setTextPosition(10);
//r.addBreak(); // 換行
xp1.setAlignment(ParagraphAlignment.LEFT);
if (jsonObject.get("result") != null){
int index = 0;
JSONObject resultJsonObject = JSONObject.fromObject(jsonObject.get("result").toString());
for(Object key : resultJsonObject.keySet()){
String flag = parseJsonFormat(key.toString(),resultJsonObject.get(key).toString());
System.out.println(resultJsonObject.get(key).toString());
System.out.println(flag);
writeDoc(xdoc,(sign)+"."+(++index),key.toString(),resultJsonObject.get(key).toString(),flag);
}
}
}
}
downloadWord(xdoc,request,response);
}
private void writeDoc(XWPFDocument xdoc, String index, String key, String value, String flag){
xdoc.createParagraph();
XWPFParagraph xp = xdoc.createParagraph();
XWPFRun r = xp.createRun();
r.setText(index +"."+ key);
r.setFontFamily("宋體");
r.setFontSize(14);
r.setBold(true);
r.setTextPosition(10);
//r.addBreak(); // 換行
xp.setAlignment(ParagraphAlignment.LEFT);
if("1".equals(flag)){
getDetail(xdoc,value);
}else if("2".equals(flag)){
getList(xdoc,value);
}else if("3".equals(flag)){
getDetailList(xdoc,value);
}
}
/**
* 獲取詳情
* @param xdoc
* @param value
*/
public void getDetail(XWPFDocument xdoc, String value){
xdoc.createParagraph();
int keyCount = 0;
JSONObject valueJsonObject = JSONObject.fromObject(value);
List list = new ArrayList();
for(Object k : valueJsonObject.keySet()){
++keyCount;
list.add(k.toString());
list.add(valueJsonObject.get(k).toString());
}
int fromCellIndex = keyCount*2 % 6;
Integer row_total_count = (keyCount*2%6 == 0) ? keyCount*2/6 : (keyCount*2/6 + 1);
Integer col_total_count = 6; // 表格最多的列數
if(keyCount * 2 < 6){
col_total_count = keyCount * 2;
}
XWPFTable xTable = xdoc.createTable();
CTTbl ttbl = xTable.getCTTbl();
CTTblPr tblPr = ttbl.getTblPr() == null ? ttbl.addNewTblPr() : ttbl.getTblPr();
CTTblWidth tblWidth = tblPr.isSetTblW() ? tblPr.getTblW() : tblPr.addNewTblW();
tblWidth.setW(new BigInteger("9072"));
tblWidth.setType(STTblWidth.DXA);
for (int i = 0; i < row_total_count; i++) {
XWPFTableRow row = xTable.insertNewTableRow(i);
row.setHeight(450);
int t = i*col_total_count;
for (int j = 0; j < col_total_count; j++) {
XWPFTableCell cell = row.createCell();
XWPFParagraph p = cell.addParagraph();
p.setAlignment(ParagraphAlignment.CENTER);
p.setSpacingBefore(100);
XWPFRun xRun = p.createRun();
xRun.setFontSize(9);
if ((j+t) < list.size()){
if(j % 2 == 0){
xRun.setBold(true);//是否粗體
cell.setColor("f0f7ff");
}
if(!"".equals(list.get(j+t).toString())){
xRun.setText(list.get(j+t).toString());
}else{
xRun.setText("暫無");
}
}else if(i == row_total_count - 1 && j == col_total_count - 1){
mergeCellsHorizontal(xTable,row_total_count-1,col_total_count,fromCellIndex-1,col_total_count-1);
}
}
}
xTable.removeRow(row_total_count);
}
/**
* 獲取列表
* @param xdoc
* @param value
*/
public void getList(XWPFDocument xdoc, String value){
JSONArray valueJsonArray = JSONArray.fromObject(value);
for (int i = 0; i < valueJsonArray.size(); i++){
getDetail(xdoc,valueJsonArray.get(i).toString());
}
}
/**
* 獲取詳情和列表
* @param xdoc
* @param value
*/
public void getDetailList(XWPFDocument xdoc, String value){
JSONObject valueJsonObject = JSONObject.fromObject(value);
for(Object k : valueJsonObject.keySet()){
String flag = parseJsonFormat(k.toString(),valueJsonObject.get(k).toString());
if("1".equals(flag)){
getDetail(xdoc,valueJsonObject.get(k).toString());
}else if("2".equals(flag)){
getList(xdoc,valueJsonObject.get(k).toString());
}
}
}
/**
* 判斷json格式
* @param key
* @param value
* @return
*/
public String parseJsonFormat(String key, String value){
//當flag=1時json格式為詳情，當flag=2時json格式為列表，當flag=3時json格式為詳情+列表
String flag = "";
Object json = new JSONTokener(value).nextValue();
if(json instanceof JSONObject){
JSONObject jsonObject = (JSONObject)json;
for(Object k : jsonObject.keySet()){
boolean isJSON = isJSON(jsonObject.get(k).toString());
if(isJSON){
flag = "3";
break;
}else{
flag = "1";
}
}
}else if (json instanceof JSONArray){
JSONArray jsonArray = (JSONArray)json;
flag = "2";
}
return flag;
}
/**
* 判斷是否為json
* @param str
* @return
*/
public boolean isJSON(String str) {
boolean result = false;
try {
Object obj = JSONObject.fromObject(str);
result = true;
} catch (Exception e) {
result=false;
}
return result;
}
/**
* 設定表頭內容
* @param cell
* @param text
* @param bgcolor
* @param width
*/
private static void setCellText(XWPFDocument xdoc, XWPFTableCell cell,
String text, String bgcolor, int width) {
CTTc cttc = cell.getCTTc();
CTTcPr cellPr = cttc.addNewTcPr();
cellPr.addNewTcW().setW(BigInteger.valueOf(width));
XWPFParagraph paragraph = cell.getParagraphs().get(0);
paragraph.setAlignment(ParagraphAlignment.CENTER); //設定表頭單元格居中
XWPFRun run = paragraph.createRun();
run.setFontFamily("仿宋_GB2312");
run.setFontSize(16); //設定表頭單元格字號
//run.setBold(true); //設定表頭單元格加粗
run.setText(text);
}
/**
* 設定列寬
*
* @param index
* @return
*/
private static int getCellWidth(int index) {
int cwidth = 1000;
if (index == 0) {
cwidth = 1000;
} else if (index == 1) {
cwidth = 2100;
} else if (index == 2) {
cwidth = 3200;
} else if (index == 3) {
cwidth = 2100;
}
return cwidth;
}
/**
* 跨列合併
* @param table
* @param row 所合併的行
* @param fromCell 起始列
* @param toCell 終止列
*/
public void mergeCellsHorizontal(XWPFTable table, int row, int colNum, int fromCell, int toCell) {
table.getRow(row).getCell(fromCell).getCTTc().addNewTcPr().addNewTcW()
.setW(BigInteger.valueOf((9072 / colNum) * (toCell - fromCell + 1)));
for (int cellIndex = fromCell; cellIndex <= toCell; cellIndex++) {
XWPFTableCell cell = table.getRow(row).getCell(cellIndex);
if ( cellIndex == fromCell ) {
// The first merged cell is set with RESTART merge value
cell.getCTTc().addNewTcPr().addNewHMerge().setVal(STMerge.RESTART);
} else {
// Cells which join (merge) the first one, are set with CONTINUE
cell.getCTTc().addNewTcPr().addNewHMerge().setVal(STMerge.CONTINUE);
}
}
}
/**
* 跨行合併
*
* @param table
* @param col
* @param fromRow
* @param toRow
*/
public static void mergeCellsVertically(XWPFTable table, int col,
int fromRow, int toRow) {
for (int rowIndex = fromRow; rowIndex <= toRow; rowIndex++) {
XWPFTableCell cell = table.getRow(rowIndex).getCell(col);
if (rowIndex == fromRow) {
// The first merged cell is set with RESTART merge value
cell.getCTTc().addNewTcPr().addNewVMerge()
.setVal(STMerge.RESTART);
} else {
// Cells which join (merge) the first one, are set with CONTINUE
cell.getCTTc().addNewTcPr().addNewVMerge()
.setVal(STMerge.CONTINUE);
}
}
}
/**
* 將檔案轉換成byte陣列
* @return
*/
public byte[] fileToByte(File file){
byte[] buffer = null;
try
{
FileInputStream fis = new FileInputStream(file);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] b = new byte[1024];
int n;
while ((n = fis.read(b)) != -1)
{
bos.write(b, 0, n);
}
fis.close();
bos.close();
buffer = bos.toByteArray();
}catch (FileNotFoundException e){
e.printStackTrace();
}catch (IOException e){
e.printStackTrace();
}
return buffer;
}
/**
* 下載
* @param xdoc
* @param request
* @param response
* @throws Exception
*/
public static void downloadWord(XWPFDocument xdoc, HttpServletRequest request, HttpServletResponse response) throws Exception {
response.setCharacterEncoding("UTF-8");
//response.setHeader("Content-disposition", "attachment;filename=" + fileName);
response.setContentType("application/force-download");// 設定強制下載不開啟
response.setHeader("Content-disposition", "attachment");
//重新整理緩衝
response.flushBuffer();
OutputStream ouputStream = response.getOutputStream();
//將word寫入到response的輸出流中，供頁面下載該Excel檔案
xdoc.write(ouputStream);
ouputStream.flush();
ouputStream.close();
}
}