通用導出excel(可控制內容)
阿新 • • 發佈:2017-09-18
timestamp data 設置 sheet 導出excel align ota 2.x getdate
實體類
package util; import java.sql.Timestamp; public class Book { private int bookId; private String name; private String author; private float price; private String isbn; private String pubName; private Timestamp date; public Book() { } public Book(intbookId, String name, String author, float price, String isbn, String pubName ,Timestamp date) { this.bookId = bookId; this.name = name; this.author = author; this.price = price; this.isbn = isbn; this.pubName = pubName; this.date=date; }public Timestamp getDate() { return date; } public void setDate(Timestamp date) { this.date = date; } public int getBookId() { return bookId; } public void setBookId(int bookId) { this.bookId = bookId; } public String getName() {return name; } public void setName(String name) { this.name = name; } public String getAuthor() { return author; } public void setAuthor(String author) { this.author = author; } public float getPrice() { return price; } public void setPrice(float price) { this.price = price; } public String getIsbn() { return isbn; } public void setIsbn(String isbn) { this.isbn = isbn; } public String getPubName() { return pubName; } public void setPubName(String pubName) { this.pubName = pubName; } }
導出通用類
package util; import java.io.OutputStream; import java.lang.reflect.Method; import java.sql.Timestamp; import java.text.SimpleDateFormat; import java.util.Collection; import java.util.Date; import java.util.Iterator; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; 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.HSSFRichTextString; 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; /** * * @author 通用導出 Excel 可以控制內容 * @name liuyi * @version 1.0 * @時間 2017-9-16 22:40 */ public class exportExcel{ /** * * @param title 標題 * @param headers 表頭 * @param dataset 數據集 -集合類型 * @param out 輸出流 * @param pattern 時間格式 * @param showAttribute 對象需要顯示的屬性 */ @SuppressWarnings({ "deprecation", "rawtypes" }) public void exportExcel(String title, String[] headers, Collection dataset, OutputStream out, String pattern,String[]showAttribute) throws Exception { // 聲明一個工作薄 HSSFWorkbook workbook = new HSSFWorkbook(); // 生成一個表格 HSSFSheet sheet = workbook.createSheet(title); // 設置表格默認列寬度為15個字節 sheet.setDefaultColumnWidth((short) 15); // 生成一個樣式 HSSFCellStyle style = workbook.createCellStyle(); // 設置這些樣式 /*style.setFillForegroundColor((short) 13); 表頭背景顏色*/ style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); style.setBorderBottom(HSSFCellStyle.BORDER_THIN); style.setBorderLeft(HSSFCellStyle.BORDER_THIN); style.setBorderRight(HSSFCellStyle.BORDER_THIN); style.setBorderTop(HSSFCellStyle.BORDER_THIN); style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 生成一個字體 HSSFFont font = workbook.createFont(); //設置字體顏色 為紅色---標題 font.setColor(HSSFColor.RED.index); font.setFontHeightInPoints((short) 12); font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 把字體應用到當前的樣式 style.setFont(font); // 生成並設置另一個樣式 HSSFCellStyle style2 = workbook.createCellStyle(); /*style2.setFillForegroundColor((short) 13); 內容背景顏色*/ style2.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); style2.setBorderBottom(HSSFCellStyle.BORDER_THIN); style2.setBorderLeft(HSSFCellStyle.BORDER_THIN); style2.setBorderRight(HSSFCellStyle.BORDER_THIN); style2.setBorderTop(HSSFCellStyle.BORDER_THIN); style2.setAlignment(HSSFCellStyle.ALIGN_CENTER); style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 生成另一個字體 HSSFFont font2 = workbook.createFont(); //--內容字體顏色 為黑-- font2.setColor(HSSFColor.BLACK.index); font2.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL); // 把字體應用到當前的樣式 style2.setFont(font2); //格式話時間類型 SimpleDateFormat sdf = new SimpleDateFormat(pattern); // 產生表格標題行 HSSFRow row = sheet.createRow(0); for (short i = 0; i < headers.length; i++) { HSSFCell cell = row.createCell(i); cell.setCellStyle(style); HSSFRichTextString text = new HSSFRichTextString(headers[i]); cell.setCellValue(text); } // 遍歷集合數據,產生數據行 Iterator it = dataset.iterator(); int index = 0; while (it.hasNext()) { //獲得 單個對象 Object t =it.next(); index++; row = sheet.createRow(index); for (short i = 0; i < showAttribute.length; i++) { HSSFCell cell = row.createCell(i); cell.setCellStyle(style2); Object value=getValue(t,showAttribute[i]); // 判斷值的類型後進行強制類型轉換 String textValue = null; if (value instanceof Boolean) { boolean bValue = (Boolean) value; textValue = "男"; if (!bValue) { textValue = "女"; } } else if (value instanceof Date) { Date date = (Date) value; textValue = sdf.format(date); } else if(value instanceof Timestamp){ Timestamp timestamp= (Timestamp) value; textValue=sdf.format(timestamp); } else { // 其它數據類型都當作字符串簡單處理 textValue = value.toString(); } // 如果不是圖片數據,就利用正則表達式判斷textValue是否全部由數字組成 if (textValue != null) { Pattern p = Pattern.compile("^//d+(//.//d+)?$"); Matcher matcher = p.matcher(textValue); if (matcher.matches()) { // 是數字當作double處理 cell.setCellValue(Double.parseDouble(textValue)); } else { HSSFRichTextString richString = new HSSFRichTextString( textValue); System.out.println(richString); cell.setCellValue(richString); } } } workbook.write(out); } } /** * * @param title 標題 * @param headers 表頭 * @param dataset 數據集---數組類型 * @param out 輸出對象 * @param pattern 時間格式 * @param showIndex 要實現內容的下標 */ @SuppressWarnings("deprecation") public void exportExcel(String title, String[] headers, List<Object[]> dataset, OutputStream out, String pattern,Integer[]showIndex) throws Exception { // 聲明一個工作薄 HSSFWorkbook workbook = new HSSFWorkbook(); // 生成一個表格 HSSFSheet sheet = workbook.createSheet(title); // 設置表格默認列寬度為15個字節 sheet.setDefaultColumnWidth((short) 15); // 生成一個樣式 HSSFCellStyle style = workbook.createCellStyle(); // 設置這些樣式 /*style.setFillForegroundColor((short) 13); 表頭背景顏色*/ style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); style.setBorderBottom(HSSFCellStyle.BORDER_THIN); style.setBorderLeft(HSSFCellStyle.BORDER_THIN); style.setBorderRight(HSSFCellStyle.BORDER_THIN); style.setBorderTop(HSSFCellStyle.BORDER_THIN); style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 生成一個字體 HSSFFont font = workbook.createFont(); //設置字體顏色 為紅色---標題 font.setColor(HSSFColor.RED.index); font.setFontHeightInPoints((short) 12); font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 把字體應用到當前的樣式 style.setFont(font); // 生成並設置另一個樣式 HSSFCellStyle style2 = workbook.createCellStyle(); /*style2.setFillForegroundColor((short) 13); 內容背景顏色*/ style2.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); style2.setBorderBottom(HSSFCellStyle.BORDER_THIN); style2.setBorderLeft(HSSFCellStyle.BORDER_THIN); style2.setBorderRight(HSSFCellStyle.BORDER_THIN); style2.setBorderTop(HSSFCellStyle.BORDER_THIN); style2.setAlignment(HSSFCellStyle.ALIGN_CENTER); style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 生成另一個字體 HSSFFont font2 = workbook.createFont(); //--內容字體顏色 為黑-- font2.setColor(HSSFColor.BLACK.index); font2.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL); // 把字體應用到當前的樣式 style2.setFont(font2); //格式話時間類型 SimpleDateFormat sdf = new SimpleDateFormat(pattern); // 產生表格標題行 HSSFRow row = sheet.createRow(0); for (short i = 0; i < headers.length; i++) { HSSFCell cell = row.createCell(i); cell.setCellStyle(style); HSSFRichTextString text = new HSSFRichTextString(headers[i]); cell.setCellValue(text); } // 遍歷集合數據,產生數據行 int index = 0; for (Object[] data : dataset) { //獲得 單個對象 index++; row = sheet.createRow(index); for (short i = 0; i < showIndex.length; i++) { HSSFCell cell = row.createCell(i); cell.setCellStyle(style2); System.out.println("i="+i+"\t value="+data[showIndex[i]]); Object value=data[showIndex[i]]; // 判斷值的類型後進行強制類型轉換 String textValue = null; if (value instanceof Boolean) { boolean bValue = (Boolean) value; textValue = "男"; if (!bValue) { textValue = "女"; } } else if (value instanceof Date) { Date date = (Date) value; textValue = sdf.format(date); } else if(value instanceof Timestamp){ Timestamp timestamp= (Timestamp) value; textValue=sdf.format(timestamp); } else { // 其它數據類型都當作字符串簡單處理 textValue = value.toString(); } // 如果不是圖片數據,就利用正則表達式判斷textValue是否全部由數字組成 if (textValue != null) { Pattern p = Pattern.compile("^//d+(//.//d+)?$"); Matcher matcher = p.matcher(textValue); if (matcher.matches()) { // 是數字當作double處理 cell.setCellValue(Double.parseDouble(textValue)); } else { HSSFRichTextString richString = new HSSFRichTextString( textValue); cell.setCellValue(richString); } } } workbook.write(out); } } /** * * @param obj 取值的對象 * @param nameValue 取值的屬性 * @return 返回需要的屬性值 */ public Object getValue(Object obj,String nameValue) throws Exception, SecurityException{ Object objValue=null; Method m = obj.getClass().getMethod(nameValue); objValue=m.invoke(obj); return objValue; } }
測試類
public class Test { public static void main(String[] args) throws Exception { String[] headers2 = { "圖書編號", "圖書名稱", "圖書作者", "圖書價格", "圖書ISBN", "圖書出版社"}; exportExcel ex2 = new exportExcel(); OutputStream out1 = new FileOutputStream("D:\\book1.xls"); OutputStream out2 = new FileOutputStream("D:\\book2.xls"); //對象 List<Book> dataset2 = new ArrayList<Book>(); dataset2.add(new Book(1, "jsp", "leno", 300.33f, "1234567", "清華出版社",Timestamp.valueOf("2017-5-5 00:00:00"))); dataset2.add(new Book(2, "java編程思想", "brucl", 300.33f, "1234567", "陽光出版社",Timestamp.valueOf("2017-5-5 00:00:00"))); dataset2.add(new Book(3, "DOM藝術", "lenotang", 300.33f, "1234567", "清華出版社",Timestamp.valueOf("2017-5-5 00:00:00"))); dataset2.add(new Book(4, "c++經典", "leno", 400.33f, "1234567", "清華出版社",Timestamp.valueOf("2017-5-5 00:00:00"))); dataset2.add(new Book(5, "c#入門", "leno", 300.33f, "1234567", "湯春秀出版社",Timestamp.valueOf("2017-5-5 00:00:00"))); //指定 要顯示的屬性 String [] showAttribute= {"getName","getPrice","getDate"}; //數組 List<Object[]>dataset1=new ArrayList<Object[]>(); dataset1.add(new Object[]{1,"小白",Timestamp.valueOf("2017-5-5 00:00:00")}); //指定要顯示的下標 Integer[] showIndex={1,2}; ex2.exportExcel("測試", headers2, dataset2, out2,"yyyy-MM-dd HH:mm:ss", showAttribute); ex2.exportExcel("測試",headers2, dataset1, out1,"yyyy-MM-dd HH:mm:ss",showIndex); } }
通用導出excel(可控制內容)