maven 依賴

<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.0.0</version> </dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>3.15</version> </dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>3.15</version> </dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml-schemas</artifactId><version>3.15</version> </dependency><dependency><groupId>org.apache.xmlbeans</groupId><artifactId>xmlbeans</artifactId><version>2.6.0</version> </dependency><dependency><groupId>com.fasterxml.jackson.dataformat</groupId><artifactId>jackson-dataformat-xml</artifactId><version>2.0.0</version> </dependency>

package?excel;import?org.apache.poi.ss.usermodel.CellType; 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;import?java.io.InputStream; import?java.text.SimpleDateFormat; import?java.util.ArrayList; import?java.util.HashMap; import?java.util.List; import?java.util.Map;/***?Created?by?xiaominzh?on?2016/11/14.*/ public?class?ExcelExportNew?{private?static?String?getCellValue(XSSFCell?cell,String?columnType)throws?Exception{if("i".equals(columnType)){return?String.valueOf(cell.getNumericCellValue());}if("d".equals(columnType)){SimpleDateFormat?sdf?=?new?SimpleDateFormat("yyyy-MM-dd");return?sdf.format(cell.getDateCellValue());}cell.setCellType(CellType.STRING);return?cell.getRichStringCellValue().toString();}private?static?List<String>?loadColumnNames(XSSFRow?row){List<String>?array?=?new?ArrayList<String>();int?maxCellNum?=?row.getLastCellNum();for(int?i=0;i<maxCellNum;i++){XSSFCell?cell?=?row.getCell(i);String?name?=?cell.getStringCellValue();array.add(name);}return?array;}private?static?List<String>?loadColumnTypes(XSSFRow?row){List<String>?array?=?new?ArrayList<String>();int?maxCellNum?=?row.getLastCellNum();for(int?i=0;i<maxCellNum;i++){XSSFCell?cell?=?row.getCell(i);String?name?=?cell.getStringCellValue();array.add(name);}return?array;}private?static?void?convertExcelToJSON(String?fileName,String?sheetName)throws?Exception?{InputStream?is?=?ExcelExportNew.class.getResourceAsStream(fileName);XSSFWorkbook?hssfWorkbook?=?new?XSSFWorkbook(is);XSSFSheet?sheet?=?hssfWorkbook.getSheet(sheetName);int?rows?=?sheet.getLastRowNum();List<Map<String,?Object>>?result?=?new?ArrayList<Map<String,?Object>>();List<String>?columnTypes?=?loadColumnTypes(sheet.getRow(0));List<String>?columnNames?=?loadColumnNames(sheet.getRow(1));for?(int?i?=?3;?i?<=?rows;?i++)?{XSSFRow?row?=?sheet.getRow(i);int?maxCellNum?=?row.getLastCellNum();Map<String,?Object>?item?=?new?HashMap<String,?Object>();for?(int?cellIndex?=?0;?cellIndex?<?maxCellNum;?cellIndex++)?{XSSFCell?cell?=?row.getCell(cellIndex);String?columnName?=?columnNames.get(cellIndex);String?columnType?=?columnTypes.get(cellIndex);String?value?=?null;try?{ //????????????????????cell.setCellType(CellType.STRING);value?=?getCellValue(cell,columnType);}?catch?(Exception?e)?{System.err.println("row:"+i+",column:"+cellIndex);System.err.println(e.getMessage());break;}item.put(columnName,?value);}result.add(item);}System.out.println(JSONUtil.getJSONString(result));}public?static?void?main(String[]?args)?throws?Exception?{convertExcelToJSON("shop_sale_type_list.xlsx","shop_sale_type_list");} }

測試excel文件

輸出

轉載于:https://blog.51cto.com/antlove/1874907

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