基于ssm的poi反射bean实例
一:该例子是笔者在实际项目应用过程中,针对项目完成的一套基于poi的导入导出例子,其中一些与项目有关的代码大家直接替换成自己的需求即可。
二:笔者在项目中使用的是poi的XSSF,对应maven的pom依赖如下:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | <poi.version>3.9</poi.version> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>${poi.version}</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>${poi.version}</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml-schemas</artifactId> <version>${poi.version}</version> </dependency> |
接下来首先是jsp页面:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | < script type="text/javascript"> $(document).ready(function() { $("#btnExport").click(function(){ top.$.jBox.confirm("确认要导出工单数据吗?","系统提示",function(v,h,f){ if(v=="ok"){ $("#searchForm").attr("action","${ctx}/wxpt/workorder/wxptWorkorderInfo/export"); $("#searchForm").submit(); } },{buttonsFocus:1}); top.$('.jbox-body .jbox-icon').css('top','55px'); }); $("#btnImportSubmit").click(function(){ $.jBox($("#importBox").html(), {title:"导入数据", buttons:{"关闭":true}, bottomText:"导入文件不能超过5M,仅允许导入“xls”或“xlsx”格式文件!"}); }); }); </ script > < script type="text/javascript" src="${ctxStatic}/js/modules/wxpt/workorder/wxptWorkorderInfo.js"></ script > </ head > < body > < div id="importBox"> < form id="importForm" action="${ctx}/wxpt/workorder/wxptWorkorderInfo/import" method="post" enctype="multipart/form-data" class="form-search" style="padding-left:20px;text-align:center;" onsubmit="loading('正在导入,请稍等...');">< br /> < input id="uploadFile" name="file" type="file" style="width:330px"/>< br />< br /> < input id="btnImportSubmit" class="btn btn-primary" type="submit" value=" 导 入 "/> < input id="btnExport" class="btn btn-primary" type="button" value="导出"/> < a href="${ctx}/sys/user/import/template">下载模板</ a > </ form > </ div > </ body > |
其中导出涉及不到表单数据的提交,笔者为了操作简便,直接将查询的表单的action换成了导出的地址,在此并没有列出来,大家换成a标签也可。
然后是控制层代码:
导出:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | /** *导出数据 *@version 2018-04-02 */ @RequiresPermissions ( "wxpt:workorder:wxptWorkorderInfo:view" ) @RequestMapping (value = "export" , method = RequestMethod.POST) public String exportToFile(HttpServletRequest request, HttpServletResponse response, RedirectAttributes redirectAttributes, WxptWorkorderInfo wxptWorkorderInfo) { try { String fileName = DateUtils.getDate( "工单yyyyMMddHHmmss" ) + ".xlsx" ; List<WxptWorkorderInfo> list = wxptWorkorderInfoService.findList(wxptWorkorderInfo); new ExportExcel( "工单" , WxptWorkorderInfo. class ).setDataList(list).write(response, fileName).dispose(); return null ; } catch (Exception e) { addMessage(redirectAttributes, "导出工单失败!失败信息:" + e.getMessage()); } return "redirect:" + Global.getAdminPath() + "/wxpt/workorder/wxptWorkorderInfo/?repage" ; } |
exportExcel:(一个工具类,直接复制粘贴即可,注释很明确)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 | /** * Copyright © 2012-2016 <a href="https://github.com/thinkgem/smkj">smkj</a> All rights reserved. */ package com.sm.modules.wxpt.utils.excel; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.lang.reflect.Field; import java.lang.reflect.Method; import java.util.Collections; import java.util.Comparator; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang3.StringUtils; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.ss.usermodel.Comment; import org.apache.poi.ss.usermodel.Font; import org.apache.poi.ss.usermodel.IndexedColors; import org.apache.poi.ss.usermodel.Row; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Workbook; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.xssf.streaming.SXSSFWorkbook; import org.apache.poi.xssf.usermodel.XSSFClientAnchor; import org.apache.poi.xssf.usermodel.XSSFRichTextString; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.google.common.collect.Lists; import com.sm.modules.sys.utils.DictUtils; import com.sm.utils.Encodes; import com.sm.utils.Reflections; import com.sm.utils.excel.annotation.ExcelField; /** * 导出Excel文件(导出“XLSX”格式,支持大数据量导出 @see org.apache.poi.ss.SpreadsheetVersion) * @author 冯文哲 * @version 2013-04-21 */ public class ExportExcel { private static Logger log = LoggerFactory.getLogger(ExportExcel. class ); /** * 工作薄对象 */ private SXSSFWorkbook wb; /** * 工作表对象 */ private Sheet sheet; /** * 样式列表 */ private Map<String, CellStyle> styles; /** * 当前行号 */ private int rownum; /** * 注解列表(Object[]{ ExcelField, Field/Method }) */ List<Object[]> annotationList = Lists.newArrayList(); /** * 构造函数 * @param title 表格标题,传“空值”,表示无标题 * @param cls 实体对象,通过annotation.ExportField获取标题 */ public ExportExcel(String title, Class<?> cls){ this (title, cls, 1 ); } /** * 构造函数 * @param title 表格标题,传“空值”,表示无标题 * @param cls 实体对象,通过annotation.ExportField获取标题 * @param type 导出类型(1:导出数据;2:导出模板) * @param groups 导入分组 */ public ExportExcel(String title, Class<?> cls, int type, int ... groups){ // Get annotation field Field[] fs = cls.getDeclaredFields(); for (Field f : fs){ ExcelField ef = f.getAnnotation(ExcelField. class ); if (ef != null && (ef.type()== 0 || ef.type()==type)){ if (groups!= null && groups.length> 0 ){ boolean inGroup = false ; for ( int g : groups){ if (inGroup){ break ; } for ( int efg : ef.groups()){ if (g == efg){ inGroup = true ; annotationList.add( new Object[]{ef, f}); break ; } } } } else { annotationList.add( new Object[]{ef, f}); } } } // Get annotation method Method[] ms = cls.getDeclaredMethods(); for (Method m : ms){ ExcelField ef = m.getAnnotation(ExcelField. class ); if (ef != null && (ef.type()== 0 || ef.type()==type)){ if (groups!= null && groups.length> 0 ){ boolean inGroup = false ; for ( int g : groups){ if (inGroup){ break ; } for ( int efg : ef.groups()){ if (g == efg){ inGroup = true ; annotationList.add( new Object[]{ef, m}); break ; } } } } else { annotationList.add( new Object[]{ef, m}); } } } // Field sorting Collections.sort(annotationList, new Comparator<Object[]>() { @Override public int compare(Object[] o1, Object[] o2) { return new Integer(((ExcelField)o1[ 0 ]).sort()).compareTo( new Integer(((ExcelField)o2[ 0 ]).sort())); }; }); // Initialize List<String> headerList = Lists.newArrayList(); for (Object[] os : annotationList){ String t = ((ExcelField)os[ 0 ]).title(); // 如果是导出,则去掉注释 if (type== 1 ){ String[] ss = StringUtils.split(t, "**" , 2 ); if (ss.length== 2 ){ t = ss[ 0 ]; } } headerList.add(t); } initialize(title, headerList); } /** * 构造函数 * @param title 表格标题,传“空值”,表示无标题 * @param headers 表头数组 */ public ExportExcel(String title, String[] headers) { initialize(title, Lists.newArrayList(headers)); } /** * 构造函数 * @param title 表格标题,传“空值”,表示无标题 * @param headerList 表头列表 */ public ExportExcel(String title, List<String> headerList) { initialize(title, headerList); } /** * 初始化函数 * @param title 表格标题,传“空值”,表示无标题 * @param headerList 表头列表 */ private void initialize(String title, List<String> headerList) { this .wb = new SXSSFWorkbook( 500 ); this .sheet = wb.createSheet( "Export" ); this .styles = createStyles(wb); // Create title if (StringUtils.isNotBlank(title)){ Row titleRow = sheet.createRow(rownum++); titleRow.setHeightInPoints( 30 ); Cell titleCell = titleRow.createCell( 0 ); titleCell.setCellStyle(styles.get( "title" )); titleCell.setCellValue(title); sheet.addMergedRegion( new CellRangeAddress(titleRow.getRowNum(), titleRow.getRowNum(), titleRow.getRowNum(), headerList.size()- 1 )); } // Create header if (headerList == null ){ throw new RuntimeException( "headerList not null!" ); } Row headerRow = sheet.createRow(rownum++); headerRow.setHeightInPoints( 16 ); for ( int i = 0 ; i < headerList.size(); i++) { Cell cell = headerRow.createCell(i); cell.setCellStyle(styles.get( "header" )); String[] ss = StringUtils.split(headerList.get(i), "**" , 2 ); if (ss.length== 2 ){ cell.setCellValue(ss[ 0 ]); Comment comment = this .sheet.createDrawingPatriarch().createCellComment( new XSSFClientAnchor( 0 , 0 , 0 , 0 , ( short ) 3 , 3 , ( short ) 5 , 6 )); comment.setString( new XSSFRichTextString(ss[ 1 ])); cell.setCellComment(comment); } else { cell.setCellValue(headerList.get(i)); } sheet.autoSizeColumn(i); } for ( int i = 0 ; i < headerList.size(); i++) { int colWidth = sheet.getColumnWidth(i)* 2 ; sheet.setColumnWidth(i, colWidth < 3000 ? 3000 : colWidth); } log.debug( "Initialize success." ); } /** * 创建表格样式 * @param wb 工作薄对象 * @return 样式列表 */ private Map<String, CellStyle> createStyles(Workbook wb) { Map<String, CellStyle> styles = new HashMap<String, CellStyle>(); CellStyle style = wb.createCellStyle(); style.setAlignment(CellStyle.ALIGN_CENTER); style.setVerticalAlignment(CellStyle.VERTICAL_CENTER); Font titleFont = wb.createFont(); titleFont.setFontName( "Arial" ); titleFont.setFontHeightInPoints(( short ) 16 ); titleFont.setBoldweight(Font.BOLDWEIGHT_BOLD); style.setFont(titleFont); styles.put( "title" , style); style = wb.createCellStyle(); style.setVerticalAlignment(CellStyle.VERTICAL_CENTER); style.setBorderRight(CellStyle.BORDER_THIN); style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderLeft(CellStyle.BORDER_THIN); style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderTop(CellStyle.BORDER_THIN); style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setBorderBottom(CellStyle.BORDER_THIN); style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex()); Font dataFont = wb.createFont(); dataFont.setFontName( "Arial" ); dataFont.setFontHeightInPoints(( short ) 10 ); style.setFont(dataFont); styles.put( "data" , style); style = wb.createCellStyle(); style.cloneStyleFrom(styles.get( "data" )); style.setAlignment(CellStyle.ALIGN_LEFT); styles.put( "data1" , style); style = wb.createCellStyle(); style.cloneStyleFrom(styles.get( "data" )); style.setAlignment(CellStyle.ALIGN_CENTER); styles.put( "data2" , style); style = wb.createCellStyle(); style.cloneStyleFrom(styles.get( "data" )); style.setAlignment(CellStyle.ALIGN_RIGHT); styles.put( "data3" , style); style = wb.createCellStyle(); style.cloneStyleFrom(styles.get( "data" )); // style.setWrapText(true); style.setAlignment(CellStyle.ALIGN_CENTER); style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex()); style.setFillPattern(CellStyle.SOLID_FOREGROUND); Font headerFont = wb.createFont(); headerFont.setFontName( "Arial" ); headerFont.setFontHeightInPoints(( short ) 10 ); headerFont.setBoldweight(Font.BOLDWEIGHT_BOLD); headerFont.setColor(IndexedColors.WHITE.getIndex()); style.setFont(headerFont); styles.put( "header" , style); return styles; } /** * 添加一行 * @return 行对象 */ public Row addRow(){ return sheet.createRow(rownum++); } /** * 添加一个单元格 * @param row 添加的行 * @param column 添加列号 * @param val 添加值 * @return 单元格对象 */ public Cell addCell(Row row, int column, Object val){ return this .addCell(row, column, val, 0 , Class. class ); } /** * 添加一个单元格 * @param row 添加的行 * @param column 添加列号 * @param val 添加值 * @param align 对齐方式(1:靠左;2:居中;3:靠右) * @return 单元格对象 */ public Cell addCell(Row row, int column, Object val, int align, Class<?> fieldType){ Cell cell = row.createCell(column); String cellFormatString = "@" ; try { if (val == null ){ cell.setCellValue( "" ); } else if (fieldType != Class. class ){ cell.setCellValue((String)fieldType.getMethod( "setValue" , Object. class ).invoke( null , val)); } else { if (val instanceof String) { cell.setCellValue((String) val); } else if (val instanceof Integer) { cell.setCellValue((Integer) val); cellFormatString = "0" ; } else if (val instanceof Long) { cell.setCellValue((Long) val); cellFormatString = "0" ; } else if (val instanceof Double) { cell.setCellValue((Double) val); cellFormatString = "0.00" ; } else if (val instanceof Float) { cell.setCellValue((Float) val); cellFormatString = "0.00" ; } else if (val instanceof Date) { cell.setCellValue((Date) val); cellFormatString = "yyyy-MM-dd HH:mm" ; } else { cell.setCellValue((String)Class.forName( this .getClass().getName().replaceAll( this .getClass().getSimpleName(), "fieldtype." +val.getClass().getSimpleName()+ "Type" )).getMethod( "setValue" , Object. class ).invoke( null , val)); } } if (val != null ){ CellStyle style = styles.get( "data_column_" +column); if (style == null ){ style = wb.createCellStyle(); style.cloneStyleFrom(styles.get( "data" +(align>= 1 &&align<= 3 ?align: "" ))); style.setDataFormat(wb.createDataFormat().getFormat(cellFormatString)); styles.put( "data_column_" + column, style); } cell.setCellStyle(style); } } catch (Exception ex) { log.info( "Set cell value [" +row.getRowNum()+ "," +column+ "] error: " + ex.toString()); cell.setCellValue(val.toString()); } return cell; } /** * 添加数据(通过annotation.ExportField添加数据) * @return list 数据列表 */ public <E> ExportExcel setDataList(List<E> list){ for (E e : list){ int colunm = 0 ; Row row = this .addRow(); StringBuilder sb = new StringBuilder(); for (Object[] os : annotationList){ ExcelField ef = (ExcelField)os[ 0 ]; Object val = null ; // Get entity value try { if (StringUtils.isNotBlank(ef.value())){ val = Reflections.invokeGetter(e, ef.value()); } else { if (os[ 1 ] instanceof Field){ val = Reflections.invokeGetter(e, ((Field)os[ 1 ]).getName()); } else if (os[ 1 ] instanceof Method){ val = Reflections.invokeMethod(e, ((Method)os[ 1 ]).getName(), new Class[] {}, new Object[] {}); } } // If is dict, get dict label if (StringUtils.isNotBlank(ef.dictType())){ val = DictUtils.getDictLabel(val== null ? "" :val.toString(), ef.dictType(), "" ); } } catch (Exception ex) { // Failure to ignore log.info(ex.toString()); val = "" ; } this .addCell(row, colunm++, val, ef.align(), ef.fieldType()); sb.append(val + ", " ); } log.debug( "Write success: [" +row.getRowNum()+ "] " +sb.toString()); } return this ; } /** * 输出数据流 * @param os 输出数据流 */ public ExportExcel write(OutputStream os) throws IOException{ wb.write(os); return this ; } /** * 输出到客户端 * @param fileName 输出文件名 */ public ExportExcel write(HttpServletResponse response, String fileName) throws IOException{ response.reset(); response.setContentType( "application/octet-stream; charset=utf-8" ); response.setHeader( "Content-Disposition" , "attachment; filename=" +Encodes.urlEncode(fileName)); write(response.getOutputStream()); return this ; } /** * 输出到文件 * @param fileName 输出文件名 */ public ExportExcel writeFile(String name) throws FileNotFoundException, IOException{ FileOutputStream os = new FileOutputStream(name); this .write(os); return this ; } /** * 清理临时文件 */ public ExportExcel dispose(){ wb.dispose(); return this ; } // /** // * 导出测试 // */ // public static void main(String[] args) throws Throwable { // // List<String> headerList = Lists.newArrayList(); // for (int i = 1; i <= 10; i++) { // headerList.add("表头"+i); // } // // List<String> dataRowList = Lists.newArrayList(); // for (int i = 1; i <= headerList.size(); i++) { // dataRowList.add("数据"+i); // } // // List<List<String>> dataList = Lists.newArrayList(); // for (int i = 1; i <=1000000; i++) { // dataList.add(dataRowList); // } // // ExportExcel ee = new ExportExcel("表格标题", headerList); // // for (int i = 0; i < dataList.size(); i++) { // Row row = ee.addRow(); // for (int j = 0; j < dataList.get(i).size(); j++) { // ee.addCell(row, j, dataList.get(i).get(j)); // } // } // // ee.writeFile("target/export.xlsx"); // // ee.dispose(); // // log.debug("Export success."); // // } } |
该导出是基于bean的导出,就要用到java的反射机制,关于bean的配置是在java实体类上通过注解来实现的:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | /** * Copyright © 2012-2016 <a href="http://www.yh3m.com">smkj</a> All rights reserved. */ package com.sm.modules.wxpt.workorder.entity; import java.util.Date; import javax.validation.constraints.NotNull; import org.hibernate.validator.constraints.Length; import org.hibernate.validator.constraints.NotEmpty; import com.fasterxml.jackson.annotation.JsonFormat; import com.sm.common.persistence.DataEntity; /** * 工单表Entity * @author 冯文哲 * @version 2018-04-02 */ public class WxptWorkorderInfo extends DataEntity<WxptWorkorderInfo> { private static final long serialVersionUID = 1L; private String systemId; // 工单导入或录入时自动生成的系统编号 private String oldSystemId; // 工单导入时原厂家自带的编号 private String uname; // 用户姓名 public WxptWorkorderInfo() { super (); } public WxptWorkorderInfo(String id){ super (id); } @Length (min= 0 , max= 64 , message= "工单导入时原厂家自带的编号长度必须介于 0 和 64 之间" ) @com .sm.utils.excel.annotation.ExcelField(title = "服务报告" , align = 2 , sort = 1 ) public String getOldSystemId() { return oldSystemId; } public void setOldSystemId(String oldSystemId) { this .oldSystemId = oldSystemId; } @Length (min= 0 , max= 64 , message= "用户姓名长度必须介于 0 和 64 之间" ) @NotEmpty (message= "用户姓名不能为空" ) @com .sm.utils.excel.annotation.ExcelField(title = "客户信息" , align = 2 , sort = 3 ) public String getUname() { return uname; } public void setUname(String uname) { this .uname = uname; } } |
该注解定义:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /** * Copyright © 2012-2016 <a href="https://github.com/thinkgem/smkj">smkj</a> All rights reserved. */ package com.sm.common.utils.excel.annotation; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; /** * Excel注解定义 * @author ThinkGem * @version 2013-03-10 */ @Target ({ElementType.METHOD, ElementType.FIELD, ElementType.TYPE}) @Retention (RetentionPolicy.RUNTIME) public @interface ExcelField { /** * 导出字段名(默认调用当前字段的“get”方法,如指定导出字段为对象,请填写“对象名.对象属性”,例:“area.name”、“office.name”) */ String value() default "" ; /** * 导出字段标题(需要添加批注请用“**”分隔,标题**批注,仅对导出模板有效) */ String title(); /** * 字段类型(0:导出导入;1:仅导出;2:仅导入) */ int type() default 0 ; /** * 导出字段对齐方式(0:自动;1:靠左;2:居中;3:靠右) */ int align() default 0 ; /** * 导出字段字段排序(升序) */ int sort() default 0 ; /** * 如果是字典类型,请设置字典的type值 */ String dictType() default "" ; /** * 反射类型 */ Class<?> fieldType() default Class. class ; /** * 字段归属组(根据分组导出导入) */ int [] groups() default {}; } |
注解的title即导出的标题。
导入: 首先创造一个map做excel标题和实体类字段映射用,即下面代码的header。
然后调用:
1 | bindToModels方法将excel映射到实体类上,后续代码可自行处理业务逻辑。 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | /** * 导入数据 * * @param file * @param redirectAttributes * @return */ @RequiresPermissions ( "wxpt:workorder:wxptWorkorderInfo:edit" ) @RequestMapping (value = "import" , method = RequestMethod.POST) public String importFile(MultipartFile file, RedirectAttributes redirectAttributes) { Map<String, String> header = new HashMap<String, String>(); header.put( "服务报告" , "oldSystemId" ); header.put( "服务类别" , "serviceType" ); header.put( "客户信息" , "uname" ); header.put( "市" , "areaCode" ); header.put( "地址" , "uaddress" ); header.put( "产品信息" , "brand" ); header.put( "附加保修文档号" , "fujiabaoxiu" ); header.put( "维修建议" , "weixiujianyi" ); header.put( "配件建议" , "peijianjianyi" ); header.put( "申请备注" , "notesAndInstructions" ); header.put( "申请时间" , "serviceTime" ); header.put( "技术文档" , "jishuwendang" ); try { int successNum = 0 ; int failureNum = 0 ; StringBuilder failureMsg = new StringBuilder(); ImBeanExcel export = new ImBeanExcel(header); export.init(file); //List<WxptWorkorderInfo> list = ei.getDataList(WxptWorkorderInfo.class); List<WxptWorkorderInfo> list = export.bindToModels(WxptWorkorderInfo. class , true ); if (export.hasError()) { System.out.println(export.getError().toString()); } for (WxptWorkorderInfo workorder : list) { String indent = randomIndentnum.getIndent(); workorder.setSystemId(indent); for ( int j = 0 ; j < workorder.getUname().length(); j++) { //处理导入数据 //拆分用户和电话 if (workorder.getUname().charAt(j)>= 48 && workorder.getUname().charAt(j)<= 57 ){ String uname = workorder.getUname().substring( 0 ,j); String uphone = workorder.getUname().substring(j,workorder.getUname().length()); workorder.setUname(uname); workorder.setUphone(uphone.trim()); } } //拆分品牌,产品类别,服务,型号 String [] bra = workorder.getBrand().split( "\\s+" ); List<WxptBrandsDict> brandsDict = wxptBrandsDictService.findList( new WxptBrandsDict()); List<WxptProductDict> productDict = wxptProductDictService.findList( new WxptProductDict()); List<WxptServiceDict> serviceDict = wxptServiceDictService.findList( new WxptServiceDict()); workorder = ImportDivision.divisionBrand(bra,workorder,brandsDict,productDict,serviceDict); } for (WxptWorkorderInfo workorder : list) { try { if ( "true" .equals(checkOldSystemId( "" , workorder.getOldSystemId()))) { BeanValidators.validateWithException(validator, workorder); wxptWorkorderInfoService.save(workorder); successNum++; } else { failureMsg.append( "<br/>工单编号 " + workorder.getOldSystemId() + " 已存在; " ); failureNum++; } } catch (ConstraintViolationException ex) { failureMsg.append( "<br/>工单编号 " + workorder.getOldSystemId() + " 导入失败:" ); List<String> messageList = BeanValidators.extractPropertyAndMessageAsList(ex, ": " ); for (String message : messageList) { failureMsg.append(message + "; " ); failureNum++; } } catch (Exception ex) { failureMsg.append( "<br/>工单编号 " + workorder.getOldSystemId() + " 导入失败:" + ex.getMessage()); } } if (failureNum > 0 ) { failureMsg.insert( 0 , ",失败 " + failureNum + " 条工单,导入信息如下:" ); } addMessage(redirectAttributes, "已成功导入 " + successNum + " 条工单" + failureMsg); } catch (Exception e) { addMessage(redirectAttributes, "导入工单失败!失败信息:" + e.getMessage()); } return "redirect:" + adminPath + "/wxpt/workorder/wxptWorkorderInfo?repage" ; } |
ImBeanExcel.java工具类:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 | package com.sm.modules.wxpt.utils.excel; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.lang.reflect.Method; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.log4j.Logger; import org.apache.poi.ss.usermodel.DateUtil; import org.apache.poi.xssf.usermodel.XSSFCell; import org.apache.poi.xssf.usermodel.XSSFDataFormat; import org.apache.poi.xssf.usermodel.XSSFRow; import org.apache.poi.xssf.usermodel.XSSFSheet; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import org.springframework.web.multipart.MultipartFile; /** * 将excel数据装换成数据模型 * * @author * */ public class ImBeanExcel { private static final int HEADER = 0 ; private static final int START = 1 ; private Logger log = Logger.getLogger( this .getClass()); private XSSFWorkbook book; /** * key:excel对应标题 ,value:对象属性 */ private Map<String, String> associations; /** * 装换失败的数据信息,记录行数 */ private StringBuffer error = new StringBuffer( 0 ); private Map<Integer, String> header; /** * 默认的日期格式 */ private String date_format = "yyyy-MM-dd" ; private SimpleDateFormat format; /** * 初始化工作簿 * * @param file */ public void init(MultipartFile file) { FileInputStream in; try { in = (FileInputStream) file.getInputStream(); book = new XSSFWorkbook(in); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } public ImBeanExcel(Map<String, String> associations) { this .associations = associations; format = new SimpleDateFormat(date_format); } public ImBeanExcel(Map<String, String> associations, String date_format) { this .associations = associations; this .date_format = date_format; format = new SimpleDateFormat(date_format); } /** * * @return true 存在错误,false 不存在错误 */ public boolean hasError() { return error.capacity() > 0 ; } public StringBuffer getError() { return error; } /** * 获取第一行标题栏数据 * * @param sheet * @return map key:标题栏列下标(0开始) value 标题栏值 */ private void loadHeader(XSSFSheet sheet) { this .header = new HashMap<Integer, String>(); XSSFRow row = sheet.getRow(HEADER); int columns = row.getLastCellNum(); for ( int i = 0 ; i < columns; i++) { log.debug( "加载标题栏:" + row.getCell(i).getStringCellValue()); String value = row.getCell(i).getStringCellValue(); if ( null == value) { throw new RuntimeException( "标题栏不能为空!" ); } header.put(i, value); } log.debug( "<<<<<<<<<<<<标题栏加载完毕>>>>>>>>>>>" ); } /** * * @param clazz * @param required * 是否每个属性都是必须的 * @return */ public <T> List<T> bindToModels(Class clazz, boolean required) throws Exception { // 获取第一页 XSSFSheet sheet = this .book.getSheetAt( 0 ); int rowNum = sheet.getLastRowNum(); // 获取行数 if (rowNum < 1 ) { return new ArrayList<T>(); } // 加载标题栏数据 this .loadHeader(sheet); List<T> result = new ArrayList<T>(); for ( int i = START; i < rowNum; i++) { XSSFRow row = sheet.getRow(i); int cellNum = row.getLastCellNum(); T instance = (T) clazz.newInstance(); for ( int columns = 0 ; columns < cellNum; columns++) { XSSFCell cell = row.getCell(columns); // 判断单元格的数据类型 String value = loadCellType(cell); // 获取单元格的值 if ( null == value) { // 如果为必填的则将错误信息记录 if (required) { this .error.append( "第" + (i + 1 ) + "行," + header.get(columns) + "字段,数据为空,跳过!" ).append( "\n" ); log.debug( "第" + (i + 1 ) + "行," + header.get(columns) + "字段,数据为空,跳过!" ); continue ; } } else if ( "" .equals(value.trim())){ // 如果为必填的则将错误信息记录 if (required) { this .error.append( "第" + (i + 1 ) + "行," + header.get(columns) + "字段,数据为空,跳过!" ).append( "\n" ); log.debug( "第" + (i + 1 ) + "行," + header.get(columns) + "字段,数据为空,跳过!" ); continue ; } } else { String key = header.get(columns); // 加载实际值 value = value.replaceAll( "\\\\" , "" ); this .loadValue(clazz, instance, this .associations.get(key), value); } } result.add(instance); } log.debug( "<<<<<装换完成" + ( this .hasError() ? "有错误信息" : "" ) + ",共有对象:" + result.size() + "个" + ">>>>>>" ); return result; } /** * 将单元格数据转换成string类型 * * @param cellType * @param cell * @return */ private String loadCellType(XSSFCell cell) { String value = null ; switch (cell.getCellType()) { case XSSFCell.CELL_TYPE_BOOLEAN: value = String.valueOf(cell.getBooleanCellValue()); break ; case XSSFCell.CELL_TYPE_NUMERIC: // 判断当前的cell是否为Date if (DateUtil.isCellDateFormatted(cell)) { value = this .formateDate(cell.getDateCellValue()); } else { value = String.valueOf(( long ) cell.getNumericCellValue()); } break ; case XSSFCell.CELL_TYPE_STRING: value = cell.getStringCellValue(); break ; case XSSFCell.CELL_TYPE_FORMULA: log.debug( "不支持函数!" ); break ; } return value; } /** * 注入属性值 * * @param instance * @param pro * 属性对象 * @param value * 属性值 */ @SuppressWarnings ( "unchecked" ) private <T> void loadValue(Class clazz, T instance, String pro, String value) throws SecurityException, NoSuchMethodException, Exception { String getMethod = this .initGetMethod(pro); Class type = clazz.getDeclaredMethod(getMethod, null ).getReturnType(); Method method = clazz.getMethod( this .initSetMethod(pro), type); if (type == String. class ) { method.invoke(instance, value); } else if (type == int . class || type == Integer. class ) { method.invoke(instance, Integer.parseInt(value)); } else if (type == long . class || type == Long. class ) { method.invoke(instance, Long.parseLong(value)); } else if (type == float . class || type == Float. class ) { method.invoke(instance, Float.parseFloat(value)); } else if (type == double . class || type == Double. class ) { method.invoke(instance, Double.parseDouble(value)); } else if (type == Date. class ) { method.invoke(instance, this .parseDate(value)); } } private Date parseDate(String value) throws ParseException { value = value.replaceAll( "/" , "-" ); return format.parse(value); } private String formateDate(Date date) { return format.format(date); } public String initSetMethod(String field) { return "set" + field.substring( 0 , 1 ).toUpperCase() + field.substring( 1 ); } public String initGetMethod(String field) { return "get" + field.substring( 0 , 1 ).toUpperCase() + field.substring( 1 ); } public String getDate_format() { return date_format; } public void setDate_format(String date_format) { this .date_format = date_format; } } |
至此一套完整流程的导入导出基本完成,可复用。
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