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java excel 多表头_POI EXCEL多表头的处理代码 | 学步园

import java.io.File;

import java.io.FileOutputStream;

import java.util.HashMap;

import java.util.Map;

import org.apache.poi.hssf.usermodel.HSSFCell;

import org.apache.poi.hssf.usermodel.HSSFCellStyle;

import org.apache.poi.hssf.usermodel.HSSFFont;

import org.apache.poi.hssf.usermodel.HSSFRow;

import org.apache.poi.hssf.usermodel.HSSFSheet;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import org.apache.poi.hssf.util.HSSFColor;

import org.apache.poi.hssf.util.Region;

public class test{

public static void main(String[] args) {

// TODO Auto-generated method stub

FileOutputStream fileOut = null;

File file = new File("c:/1.xls");

String[] header = { "服务器名", "IP地址", "库cache命中率_最大值", "库cache命中率_平均值",

"连接数_最大值", "连接数_平均值", "游标数_最大值", "游标数_平均值", "session数_最大值",

"session数_平均值", "事务数_最大值", "事务数_平均值", "数据库锁数_最大值", "数据库锁数_平均值",

"缓冲池命中数_最大值", "缓冲池命中数_平均值", "表空间_使用率_最大值", "表空间_使用率_平均值",

"表空间_已用空间_最大值", "表空间_已用空间_平均值", "表空间_剩余率_最大值", "表空间_剩余率_平均值",

"表空间_剩余空间_最大值", "表空间_剩余空间_平均值", "表空间_总容量_最大值", "表空间_总容量_平均值",

"连接状态" };

try {

HSSFWorkbook wb = new HSSFWorkbook();

HSSFSheet sheet = wb.createSheet("new sheet");

HSSFFont fontinfo = wb.createFont();

fontinfo.setFontHeightInPoints((short) 8); // 字体大小

HSSFFont fonthead = wb.createFont();

fonthead.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);// 加粗

HSSFCellStyle cellStylename = wb.createCellStyle();// 表名样式

cellStylename.setFont(fonthead);

HSSFCellStyle cellStyleinfo = wb.createCellStyle();// 表信息样式

cellStyleinfo.setAlignment(HSSFCellStyle.ALIGN_RIGHT);// 对齐

cellStyleinfo.setFont(fontinfo);

HSSFCellStyle cellStylehead = wb.createCellStyle();// 表头样式

cellStylehead.setFont(fonthead);

cellStylehead.setAlignment(HSSFCellStyle.ALIGN_CENTER);

cellStylehead.setBorderBottom(HSSFCellStyle.BORDER_THIN);// 边框

cellStylehead.setBottomBorderColor(HSSFColor.BLACK.index);

cellStylehead.setBorderLeft(HSSFCellStyle.BORDER_THIN);

cellStylehead.setLeftBorderColor(HSSFColor.BLACK.index);

cellStylehead.setBorderRight(HSSFCellStyle.BORDER_THIN);

cellStylehead.setRightBorderColor(HSSFColor.BLACK.index);

cellStylehead.setBorderTop(HSSFCellStyle.BORDER_THIN);

cellStylehead.setTopBorderColor(HSSFColor.BLACK.index);

cellStylehead.setFillForegroundColor(HSSFColor.ORANGE.index);

cellStylehead.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

HSSFCellStyle cellStyle = wb.createCellStyle();// 数据单元样式

cellStyle.setWrapText(true);// 自动换行

cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);

cellStyle.setBottomBorderColor(HSSFColor.BLACK.index);

cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);

cellStyle.setLeftBorderColor(HSSFColor.BLACK.index);

cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);

cellStyle.setRightBorderColor(HSSFColor.BLACK.index);

cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);

cellStyle.setTopBorderColor(HSSFColor.BLACK.index);

int col = header.length;

HSSFRow row = sheet.createRow((short) 0);

HSSFCell cell = row.createCell((short) 0);

cell.setEncoding(HSSFCell.ENCODING_UTF_16);

cell.setCellStyle(cellStylename);

cell.setCellValue("oracle");// 表名

sheet.addMergedRegion(new Region(0, (short) 0, 0, (short) 1));

cell = row.createCell((short) 2);

cell.setEncoding(HSSFCell.ENCODING_UTF_16);

cell.setCellStyle(cellStyleinfo);

cell.setCellValue("oracle"); // 信息

sheet.addMergedRegion(new Region(0, (short) 2, 0, (short) col));

int rows_max = 0;

for (int i = 0; i < header.length; i++) {

String h = header[i];

if (h.split("_").length > rows_max) {

rows_max = h.split("_").length;

}

}

Map map = new HashMap();

for (int k = 0; k < rows_max; k++) {

row = sheet.createRow((short) k + 1);

if (k == 0) {

cell = row.createCell((short) (0));

cell.setEncoding(HSSFCell.ENCODING_UTF_16);

cell.setCellStyle(cellStylehead);

cell.setCellValue("序号");

sheet.addMergedRegion(new Region(k + 1, (short) 0, k

+ rows_max, (short) 0));

}

for (int i = 0; i < header.length; i++) {

String headerTemp = header[i];

String[] s = headerTemp.split("_");

String sk = "";

int num = i + 1;

if (s.length == 1) {

cell = row.createCell((short) (num));

cell.setEncoding(HSSFCell.ENCODING_UTF_16);

cell.setCellStyle(cellStylehead);

sheet.addMergedRegion(new Region(1, (short) (num),

rows_max, (short) (num)));

sk = headerTemp;

cell.setCellValue(sk);

} else {

System.out.println(sk);

cell = row.createCell((short) (num));

cell.setEncoding(HSSFCell.ENCODING_UTF_16);

cell.setCellStyle(cellStylehead);

int cols = 0;

if (map.containsKey(headerTemp)) {

continue;

}

for (int d = 0; d <= k; d++) {

if (d != k) {

sk += s[d] + "_";

} else{

sk += s[d];

}

}

if(map.containsKey(sk)){

continue;

}

for (int j = 0; j < header.length; j++) {

if (header[j].indexOf(sk) != -1) {

cols++;

}

}

cell.setCellValue(s[k]);

sheet

.addMergedRegion(new Region(k + 1,

(short) num, k + 1,

(short) (num + cols-1)));

if (sk.equals(headerTemp)) {

sheet.addMergedRegion(new Region(k + 1,

(short) num, k + 1 + rows_max

- s.length, (short) num));

}

}

if (s.length > k) {

if (!map.containsKey(sk)) {

String key = "";

if (k > 0) {

key = sk;

} else {

key = s[k];

}

map.put(key, null);

}

}

}

}

fileOut = new FileOutputStream(file);

// modify by xywang(2007-11-19) end

wb.write(fileOut);

} catch (Exception e) {

e.printStackTrace();

}

}

}