package com.example.excel;
import java.io.*;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class ExcelOperate {
public static void main(String[] args) throws Exception {
//File file = new File(" ");
// File file = new File(" ");
//getSheetData(file);
File file = new File(" ");
String[][] result = getData(file, 1);
int rowLength = result.length;
/* 寫入Txt文件 */
File writename = new File("E:\\two.txt"); // 相對路徑，如果沒有則要建立一個新的output。txt文件
writename.createNewFile(); // 創建新文件
BufferedWriter out = new BufferedWriter(new FileWriter(writename));
for(int i=0;i<61;i++) {
//for(int j=0;j<7;j++) {
///System.out.print(result[i][j]+"\t\t");
out.write(
"UPDATE SET FULL_NAME_ ='"+result[i][2]+"',DESC_ = '"+result[i][3]+"' , = '"+result[i][5]+"' , ='"+result[i][6]+"'\n" +
"WHERE NAME_ = '"+result[i][1]+"' ;"+
"\r\n"); // \r\n即為換行
//}
System.out.println();
}
/*for(int i=0;i<rowLength;i++) {
for(int j=0;j<result[i].length;j++) {
System.out.print(result[i][j]+"\t\t");
out.write(result[i][j]+"\r\n"); // \r\n即為換行
}
System.out.println();
}*/
out.flush(); // 把緩存區內容壓入文件
out.close(); // 最后記得關閉文件
}
static void getSheetData(File file)throws IOException{
FileInputStream inp = new FileInputStream(file);
XSSFWorkbook wb = new XSSFWorkbook(inp);
XSSFSheet sheet = wb.getSheetAt(3); // 獲得第三個工作薄(2008工作薄)
// 填充上面的表格,數據需要從數據庫查詢
// HSSFRow row5 = sheet.getRow(4); // 獲得工作薄的第五行
// HSSFCell cell54 = row5.getCell(3);// 獲得第五行的第四個單元格
// cell54.setCellValue("測試納稅人名稱");// 給單元格賦值
//獲得總列數
int coloumNum=sheet.getRow(0).getPhysicalNumberOfCells();
int rowNum=sheet.getLastRowNum();//獲得總行數
System.out.println(coloumNum);
System.out.println(rowNum);
System.out.println(sheet.getSheetName());
int cellCount = 0;
for (int i = 0; i < rowNum; i++) {
XSSFRow row = sheet.getRow(i);
if (row != null) {//row 該行所有單元格為空時，row是null值 2017-01-05 pelin
System.out.println( i +"索引行getPhysicalNumberOfCells:" + row.getPhysicalNumberOfCells());
System.out.println( i +"索引行getLastCellNum:" + row);
}
}
System.out.println(cellCount);
}
/**
* 讀取Excel的內容，第一維數組存儲的是一行中格列的值，二維數組存儲的是多少個行
* @param file 讀取數據的源Excel
* @param ignoreRows 讀取數據忽略的行數，比喻行頭不需要讀入 忽略的行數為1
* @return 讀出的Excel中數據的內容
* @throws FileNotFoundException
* @throws IOException
*/
public static String[][] getData(File file, int ignoreRows)
throws FileNotFoundException, IOException {
List<String[]> result = new ArrayList<String[]>();
int rowSize = 0;
BufferedInputStream in = new BufferedInputStream(new FileInputStream(
file));
// 打開HSSFWorkbook
FileInputStream inp = new FileInputStream(file);
XSSFWorkbook wb = new XSSFWorkbook(inp);
// XSSFSheet sheet = wb.getSheetAt(3);
XSSFCell cell = null;
for (int sheetIndex = 0; sheetIndex < wb.getNumberOfSheets(); sheetIndex++) {
XSSFSheet st = wb.getSheetAt(sheetIndex);
if (st.getSheetName().equals("GEE1.0 ECU Master List")) {
// 第一行為標題，不取
for (int rowIndex = ignoreRows; rowIndex <= st.getLastRowNum(); rowIndex++) {
XSSFRow row = st.getRow(rowIndex);
if (row == null) {
continue;
}
int tempRowSize = row.getLastCellNum() + 1;
if (tempRowSize > rowSize) {
rowSize = tempRowSize;
}
String[] values = new String[rowSize];
Arrays.fill(values, "");
boolean hasValue = false;
for (short columnIndex = 0; columnIndex <= row.getLastCellNum(); columnIndex++) {
String value = "";
cell = row.getCell(columnIndex);
if (cell != null) {
// 注意：一定要設成這個，否則可能會出現亂碼
// cell.setEncoding(HSSFCell.ENCODING_UTF_16);
switch (cell.getCellType()) {
case STRING:
value = cell.getStringCellValue();
break;
case NUMERIC:
if (HSSFDateUtil.isCellDateFormatted(cell)) {
Date date = cell.getDateCellValue();
if (date != null) {
value = new SimpleDateFormat("yyyy-MM-dd")
.format(date);
} else {
value = "";
}
} else {
value = new DecimalFormat("0").format(cell
.getNumericCellValue());
}
break;
case FORMULA:
// 導入時如果為公式生成的數據則無值
if (!cell.getStringCellValue().equals("")) {
value = cell.getStringCellValue();
} else {
value = cell.getNumericCellValue() + "";
}
break;
case BLANK:
break;
case ERROR:
value = "";
break;
case BOOLEAN:
value = (cell.getBooleanCellValue() == true ? "Y"
: "N");
break;
default:
value = "";
}
}
if (columnIndex == 0 && value.trim().equals("")) {
break;
}
values[columnIndex] = rightTrim(value);
hasValue = true;
}
if (hasValue) {
result.add(values);
}
}
}
}
in.close();
String[][] returnArray = new String[result.size()][rowSize];
for (int i = 0; i < returnArray.length; i++) {
returnArray[i] = (String[]) result.get(i);
}
return returnArray;
}
/**
* 去掉字符串右邊的空格
* @param str 要處理的字符串
* @return 處理后的字符串
*/
public static String rightTrim(String str) {
if (str == null) {
return "";
}
int length = str.length();
for (int i = length - 1; i >= 0; i--) {
if (str.charAt(i) != 0x20) {
break;
}
length--;
}
return str.substring(0, length);
}
}
