ExcelAnnotation.java;

package cn.chn.chen.dev.excel;import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;/*** <p>* ExcelAnnotation类主要用于-.* </p>* <p>* 创建时间 2011-4-18 - 下午10:05:47* </p>* <blockquote>* <h4>历史修改记录</h4>* <ul>* <li>修改人 修改时间 修改描述* </ul>* </blockquote>* <p>* copyright cd×××× 2010-2011, all rights reserved.* </p>* * @author IT山人* @since 1.0* @version 1.0*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface ExcelAnnotation {// excel导出时标题显示的名字，如果没有设置Annotation属性，将不会被导出和导入public String exportName();
}

ExcelStyle.java;

package cn.chn.chen.dev.excel;import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;/*** <p>* ExcelStyle类主要用于-excel导出样式控制.* </p>* <p>* 创建时间 2011-4-21 - 下午12:43:11* </p>* @author IT山人*/
public class ExcelStyle {public static HSSFCellStyle setHeadStyle(HSSFWorkbook workbook,HSSFCellStyle style) {style.setFillForegroundColor(HSSFColor.SKY_BLUE.index);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);// 生成字体HSSFFont font = workbook.createFont();font.setColor(HSSFColor.VIOLET.index);font.setFontHeightInPoints((short) 12);font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);// 把字体应用到当前的样样式style.setFont(font);return style;}public static HSSFCellStyle setbodyStyle(HSSFWorkbook workbook,HSSFCellStyle style) {style.setFillForegroundColor(HSSFColor.LIGHT_YELLOW.index);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);style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);// 生成字体HSSFFont font = workbook.createFont();font.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);// 把字体应用到当前的样样式style.setFont(font);return style;}
}

ImportExcel.java;

package cn.chn.chen.dev.excel;import java.io.File;
import java.io.FileInputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;/*** <p>* ImportExcel类主要用于-Excel导入（POI）.* </p>* <p>* 创建时间 2011-4-18 - 下午10:33:52* </p>* @author IT山人*/
public class ImportExcel<T> {Class<T> clazz;public ImportExcel (Class<T> clazz) {this.clazz = clazz;}public Collection<T> importExcel(File file, String...pattern) {Collection<T> dist = new ArrayList<T>();try {/*** 类反射得到调用方法*/// 得到目标目标类的所有的字段列表  Field[] fields = clazz.getDeclaredFields();// 将所有标有Annotation的字段，也就是允许导入数据的字段,放入到一个map中Map<String, Method> fieldMap = new HashMap<String, Method>();// 循环读取所有字段for (Field field : fields) {// 得到单个字段上的AnnotationExcelAnnotation excelAnnotation = field.getAnnotation(ExcelAnnotation.class);// 如果标识了Annotationdif (excelAnnotation != null) {String fieldName = field.getName();// 构造设置了Annotation的字段的Setter方法String setMethodName = "set" + fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1);// 构造调用的methodMethod setMethod = clazz.getMethod(setMethodName, new Class[] {field.getType()});// 将这个method以Annotaion的名字为key来存入fieldMap.put(excelAnnotation.exportName(), setMethod);}}/*** excel的解析开始*/// 将传入的File构造为FileInputStream;FileInputStream inputStream = new FileInputStream(file);// 得到工作表HSSFWorkbook book = new HSSFWorkbook(inputStream);// 得到第一页HSSFSheet sheet = book.getSheetAt(0);// 得到第一面的所有行Iterator<Row> row = sheet.rowIterator();/*** 标题解析*/// 得到第一行，也就是标题行Row titleRow = row.next();// 得到第一行的所有列Iterator<Cell> cellTitle = titleRow.cellIterator();// 将标题的文字内容放入到一个map中Map<Integer, String> titleMap = new HashMap<Integer, String>();// 从标题第一列开始int i = 0;// 循环标题所有的列while (cellTitle.hasNext()) {Cell cell = (Cell) cellTitle.next();String value = cell.getStringCellValue();titleMap.put(i, value);i++;}/*** 解析内容行*/while (row.hasNext()) {// 标题下的第一行Row rown = row.next();// 行的所有列Iterator<Cell> cellBody = rown.cellIterator();// 得到传入类的实例T tObject = clazz.newInstance();// 遍历一行的列int col = 0;while (cellBody.hasNext()) {Cell cell = (Cell) cellBody.next();// 这里得到此列的对应的标题String titleString = titleMap.get(col++);// 如果这一列的标题和类中的某一列的Annotation相同，那么则调用此类的的set方法，进行设值if (fieldMap.containsKey(titleString)) {Method setMethod = fieldMap.get(titleString);//得到setter方法的参数Type[] types = setMethod.getGenericParameterTypes();//只要一个参数String xclass = String.valueOf(types[0]);//判断参数类型if ("class java.lang.String".equals(xclass)) {setMethod.invoke(tObject, cell.getStringCellValue());} else if ("class java.util.Date".equals(xclass)) {setMethod.invoke(tObject, cell.getDateCellValue());} else if ("class java.lang.Boolean".equals(xclass)) {Boolean boolName = true;if ("否".equals(cell.getStringCellValue())) {boolName = false;}setMethod.invoke(tObject, boolName);} else if ("class java.lang.Integer".equals(xclass)) {setMethod.invoke(tObject, new Integer(String.valueOf((int)cell.getNumericCellValue())));} else if ("class java.lang.Long".equals(xclass)) {setMethod.invoke(tObject, new Long(cell.getStringCellValue()));} else {//}}}dist.add(tObject);}} catch (Exception e) {// TODO: handle exceptione.printStackTrace();return null;}return dist;}public static void main(String[] args) {ImportExcel<TestVo> test = new ImportExcel<TestVo>(TestVo.class);File file = new File("D:\\testOne.xls");List<TestVo> results = (List<TestVo>) test.importExcel(file);SimpleDateFormat simpleDateFormat;   simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");     for (TestVo testVo : results) {System.out.println(testVo.getName() + "\t" + testVo.getSex() + "\t" + simpleDateFormat.format(testVo.getBrith()));}}
}

ExcelExport.java;

package cn.chn.chen.dev.excel;import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;
import java.util.List;import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
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;/*** <p>* ExcelExport类主要用于-excel导出（POI）.* </p>* <p>* 创建时间 2011-4-21 - 下午12:34:33* </p>* @author IT山人*/
public class ExcelExport<T> {//格式化日期   SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");/*** <p>* exportExcel方法-poi Excel导出.* </p>* <p>* 创建人 IT山人 创建时间 2011-4-21 - 下午09:36:21* </p>* @param title 工作簿名称* @param dataset 导出的数据集* @param out 输出流*/@SuppressWarnings("unchecked")public void exportExcel(String title, Collection<T> dataset, OutputStream out) {// 声明一个工作薄  try {//首先检查数据看是否是正确的   Iterator<T> iterator = dataset.iterator();if (dataset == null || !iterator.hasNext() || title == null || out == null) {throw new Exception("传入的数据不对！");}//取得实际泛型类   T tObject = iterator.next();Class<T> clazz = (Class<T>) tObject.getClass();HSSFWorkbook workbook = new HSSFWorkbook();// 生成一个表格   HSSFSheet sheet = workbook.createSheet(title);// 设置表格默认列宽度为20个字节   sheet.setDefaultColumnWidth(20);// 生成一个样式   HSSFCellStyle style = workbook.createCellStyle();// 设置标题样式   style = ExcelStyle.setHeadStyle(workbook, style);// 得到所有字段   Field filed[] = tObject.getClass().getDeclaredFields();// 标题   List<String> exportfieldtile = new ArrayList<String>();// 导出的字段的get方法   List<Method> methodObj = new ArrayList<Method>();// 遍历整个filed   for (int i = 0; i < filed.length; i++) {Field field = filed[i];ExcelAnnotation excelAnnotation = field.getAnnotation(ExcelAnnotation.class);// 如果设置了annottion   if (excelAnnotation != null) {String exprot = excelAnnotation.exportName();// 添加到标题   exportfieldtile.add(exprot);// 添加到需要导出的字段的方法   String fieldname = field.getName();String getMethodName = "get" + fieldname.substring(0, 1).toUpperCase() + fieldname.substring(1);Method getMethod = clazz.getMethod(getMethodName, new Class[] {});methodObj.add(getMethod);}}// 产生表格标题行   HSSFRow row = sheet.createRow(0);for (int i = 0; i < exportfieldtile.size(); i++) {HSSFCell cell = row.createCell(i);cell.setCellStyle(style);HSSFRichTextString text = new HSSFRichTextString(exportfieldtile.get(i));cell.setCellValue(text);}// 循环整个集合   int index = 0;iterator = dataset.iterator();while (iterator.hasNext()) {//从第二行开始写，第一行是标题   index++;row = sheet.createRow(index);T t = (T) iterator.next();for (int k = 0; k < methodObj.size(); k++) {HSSFCell cell = row.createCell(k);Method getMethod = methodObj.get(k);Object value = getMethod.invoke(t, new Object[] {});String textValue = getValue(value);cell.setCellValue(textValue);}}workbook.write(out);} catch (Exception e) {e.printStackTrace();}}/*** <p>* getValue方法-cell值处理.* </p>* <p>* 创建人 IT山人 创建时间 2011-4-21 - 下午09:38:31* </p>* @param value* @return*/public String getValue(Object value) {String textValue = "";if (value == null) {return textValue;}if (value instanceof Boolean) {boolean bValue = (Boolean) value;textValue = "是";if (!bValue) {textValue = "否";}} else if (value instanceof Date) {Date date = (Date) value;textValue = sdf.format(date);} else {textValue = value.toString();}return textValue;}   public static void main(String[] args) throws IOException {OutputStream out = new FileOutputStream("D:\\testOne1.xls");ExcelExport<TestVo> ex = new ExcelExport<TestVo>();ImportExcel<TestVo> test = new ImportExcel<TestVo>(TestVo.class);File file = new File("D:\\testOne.xls");List<TestVo> results = (List<TestVo>) test.importExcel(file);ex.exportExcel("测试", results, out);out.close();}
}

ImportExcell.java;

package cn.chn.chen.dev.excel;import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;/*** <p>* ImportExcell类主要用于-.* </p>* <p>* 创建时间 2011-4-21 - 下午04:45:33* </p>* @author IT山人*/
public class ImportExcell {private static final Log log = LogFactory.getLog(ImportExcell.class);/*** <p>* readExcel方法-读取excel，行为list，列为Map.* </p>* <p>* 创建人 IT山人 创建时间 2011-4-21 - 下午09:46:33* </p>* @param file excel文件* @return excel表数据集合-行为list，列为Map*/public List<Map<String, String>> readExcel(File file) {log.info("读取excel开始...");List<Map<String, String>> dataset = new ArrayList<Map<String, String>>();try {// 将传入的File构造为FileInputStream;FileInputStream inputStream = new FileInputStream(file);// 得到工作表HSSFWorkbook book  = new HSSFWorkbook(inputStream);// 得到第一页HSSFSheet sheet = book.getSheetAt(0);// 得到第一面的所有行Iterator<Row> rowIterator = sheet.rowIterator();// 得到第一行，也就是标题行@SuppressWarnings("unused")Row titleRow = rowIterator.next();while (rowIterator.hasNext()) {Row row = rowIterator.next();Map<String, String> map = this.creatObjectByRow(row);dataset.add(map);}} catch (FileNotFoundException e1) {// TODO Auto-generated catch blocke1.printStackTrace();} catch (IOException e2) {// TODO Auto-generated catch blocke2.printStackTrace();} catch (Exception e) {// TODO: handle exception}log.info("读取excel结束...");return dataset;}/*** <p>* creatObjectByRow方法-将每行的数据装载Map中.* </p>* <p>* 创建人 IT山人 创建时间 2011-4-21 - 下午09:48:17* </p>* @param row* @return*/private Map<String, String> creatObjectByRow(Row row) {// 行的所有列Iterator<Cell> cellBody = row.cellIterator();// 遍历一行的列int col = 1;Map<String, String> map = new HashMap<String, String>();while (cellBody.hasNext()) {String field = String.valueOf(col++);Cell cell = cellBody.next();if (cell != null) {switch (cell.getCellType()) {case HSSFCell.CELL_TYPE_STRING:        // 字符map.put(field, StringUtils.trim(cell.getStringCellValue()));break;case HSSFCell.CELL_TYPE_BOOLEAN: // 布尔map.put(field, StringUtils.trim(cell.getStringCellValue()));break;case HSSFCell.CELL_TYPE_NUMERIC: // 数字if (HSSFDateUtil.isCellDateFormatted(cell)) {// 是否为日期格式map.put(field, String.valueOf(cell.getDateCellValue()));} else {Double cellValue_dob = cell.getNumericCellValue();// 读取cell内数据if (String.valueOf(cellValue_dob).length() > 11) { // 如果读取到的是手机号码,需要匹配数字格式DecimalFormat format = (DecimalFormat) NumberFormat.getInstance();//format.applyPattern("00000000000");map.put(field, format.format(cellValue_dob));} else { // 如果读取到的是比较短的数字，则去掉尾数（.0）后显示map.put(field, cellValue_dob.toString().substring(0, cellValue_dob.toString().length() - 2));}}break;case HSSFCell.CELL_TYPE_FORMULA: // 公式 map.put(field, String.valueOf(cell.getNumericCellValue()));break;case HSSFCell.CELL_TYPE_BLANK:       // 空map.put(field, StringUtils.trim(cell.getStringCellValue()));break;case HSSFCell.CELL_TYPE_ERROR:        // 异常map.put(field, StringUtils.trim(cell.getStringCellValue()));break;default:map.put(field, StringUtils.trim(cell.getStringCellValue()));break;}}}return map;}public static void main(String[] args) {// TODO Auto-generated method stubImportExcell inport = new ImportExcell();File file = new File("D:\\testOne.xls");List<Map<String, String>> mapList = inport.readExcel(file);for (Map<String, String> map : mapList) {
//          Iterator<Entry<String, String>> iterator = map.entrySet().iterator();
//          while (iterator.hasNext()) {
//              Map.Entry<String, String> entry = iterator.next();
//              String key = entry.getKey();
//              String value = entry.getValue();
//              System.out.println("key:" + key + "\tvalue:" + value);
//          }TestVo t = new TestVo();t.setName(map.get("1"));System.out.println(t.getName());}}
}

TestVo.java;

public class TestVo {@ExcelAnnotation(exportName="姓名")private String name;@ExcelAnnotation(exportName="性别")private Integer sex;@ExcelAnnotation(exportName="出生年月")private Date brith;/*** @return 返回 name*/public String getName() {return name;}/*** @param name 设置 name*/public void setName(String name) {this.name = name;}/*** @return 返回 sex*/public Integer getSex() {return sex;}/*** @param sex 设置 sex*/public void setSex(Integer sex) {this.sex = sex;}/*** @return 返回 brith*/public Date getBrith() {return brith;}/*** @param brith 设置 brith*/public void setBrith(Date brith) {this.brith = brith;}}