添加POI

pom.xml

@@ -24,8 +24,33 @@
         <fastjson.version>1.2.29</fastjson.version>
         <alipay.version>4.8.10.ALL</alipay.version>
         <ijpay.version>2.3.2</ijpay.version>
+        <poi.version>4.1.0</poi.version>
     </properties>
     <dependencies>
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi</artifactId>
+            <version>${poi.version}</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-scratchpad</artifactId>
+            <version>${poi.version}</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-ooxml</artifactId>
+            <version>${poi.version}</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-ooxml-schemas</artifactId>
+            <version>${poi.version}</version>
+            <scope>compile</scope>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>

src/main/java/com/jpsoft/smart/modules/common/utils/POIUtils.java

@@ -0,0 +1,375 @@
+package com.jpsoft.smart.modules.common.utils;
+
+import org.apache.poi.hssf.converter.ExcelToHtmlConverter;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.apache.poi.ss.usermodel.*;
+import org.w3c.dom.Document;
+
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.transform.OutputKeys;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+import java.io.*;
+import java.math.BigDecimal;
+import java.text.DecimalFormat;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Description:POI解析Excel获取所有数据(支持xls/xlsx)
+ *
+ * @author zhjun 2015-11-5
+ */
+public class POIUtils {
+    InputStream ins = null;
+    Workbook wb = null;
+    List<Object[]> dataList = new ArrayList<Object[]>(100);
+
+    public static void CreateBorder(CellStyle cellStyle) {
+        if (cellStyle != null) {
+            cellStyle.setBorderTop(BorderStyle.THIN);
+            cellStyle.setBorderBottom(BorderStyle.THIN);
+            cellStyle.setBorderLeft(BorderStyle.THIN);
+            cellStyle.setBorderRight(BorderStyle.THIN);
+        }
+    }
+
+    public static Cell setCellValue(Row row, int i, String value) {
+        // TODO Auto-generated method stub
+        Cell cell = row.createCell(i);
+        cell.setCellValue(value);
+
+        return cell;
+    }
+
+    public static Cell setCellValue(Row row, int i, int value) {
+        // TODO Auto-generated method stub
+        Cell cell = row.createCell(i);
+        cell.setCellValue(value);
+
+        return cell;
+    }
+
+    public static Cell setCellValue(Row row, int cellIndex, CellStyle cellStyle, Object value) {
+        Cell cell = row.createCell(cellIndex);
+        cell.setCellStyle(cellStyle);
+
+        if (value != null) {
+            if (value instanceof BigDecimal) {
+                cell.setCellValue(((BigDecimal) value).doubleValue());
+            } else if (value instanceof String) {
+                cell.setCellValue(value.toString());
+            } else if (value instanceof Integer) {
+                cell.setCellValue(Double.valueOf(value.toString()));
+            } else if (value instanceof Long) {
+                cell.setCellValue(Double.valueOf(value.toString()));
+            }
+        }
+
+        return cell;
+    }
+
+    public static String xls2html(HSSFWorkbook wb) {
+        String result = "";
+
+        try {
+            ExcelToHtmlConverter converter = new ExcelToHtmlConverter(DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument());
+            converter.setOutputColumnHeaders(false);
+            converter.setOutputRowNumbers(false);
+
+            converter.processWorkbook(wb);
+
+            Document htmlDocument = converter.getDocument();
+            ByteArrayOutputStream out = new ByteArrayOutputStream();
+            DOMSource domSource = new DOMSource(htmlDocument);
+            StreamResult streamResult = new StreamResult(out);
+            TransformerFactory tf = TransformerFactory.newInstance();
+            Transformer serializer = tf.newTransformer();
+            serializer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
+            serializer.setOutputProperty(OutputKeys.INDENT, "yes");
+            serializer.setOutputProperty(OutputKeys.METHOD, "html");
+            serializer.transform(domSource, streamResult);
+            out.close();
+
+            result = new String(out.toByteArray(), "UTF-8");
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+
+        return result;
+    }
+
+    /**
+     * 通过流读取
+     *
+     * @param ins
+     */
+    public POIUtils(InputStream ins) {
+        try {
+            wb = WorkbookFactory.create(ins);
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            if (ins != null) {
+                try {
+                    ins.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    public Sheet getSheetAt(int sheetIndex){
+        return wb.getSheetAt(sheetIndex);
+    }
+
+    public Workbook getWorkbook(){
+        return wb;
+    }
+
+    /**
+     * 通过文件读取
+     *
+     * @param file
+     */
+    public POIUtils(File file) {
+        try {
+            ins = new FileInputStream(file);
+            wb = WorkbookFactory.create(ins);
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            if (ins != null) {
+                try {
+                    ins.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    /**
+     * 通过文件路径读取
+     *
+     * @param path
+     */
+    public POIUtils(String path) {
+        try {
+            ins = new FileInputStream(path);
+            wb = WorkbookFactory.create(ins);
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            if (ins != null) {
+                try {
+                    ins.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    /**
+     * 取Excel所有数据，包含header
+     *
+     * @return List<Object   [   ]>
+     */
+    public List<Object[]> getAllData(int sheetIndex) {
+        int columnNum = 0;
+        Sheet sheet = wb.getSheetAt(sheetIndex);
+        if (sheet.getRow(0) != null) {
+            columnNum = sheet.getRow(0).getLastCellNum() - sheet.getRow(0).getFirstCellNum();
+        }
+        if (columnNum > 0) {
+            for (Row row : sheet) {
+                Object[] singleRow = new Object[columnNum];
+                int n = 0;
+
+                for (int i = 0; i < columnNum; i++) {
+                    Cell cell = row.getCell(i, Row.MissingCellPolicy.CREATE_NULL_AS_BLANK);
+                    singleRow[n] = getCellValue(cell);
+                    n++;
+                }
+
+                //在后续方法中校验
+//				if("".equals(singleRow[0])){continue;}//如果第一列为空，跳过
+
+                dataList.add(singleRow);
+            }
+        }
+        return dataList;
+    }
+
+    public List<Object[]> getAllData(int sheetIndex, int firstRowNum) {
+        int columnNum = 0;
+        Sheet sheet = wb.getSheetAt(sheetIndex);
+        if (sheet.getRow(0) != null) {
+            columnNum = sheet.getRow(firstRowNum).getLastCellNum();
+        }
+        if (columnNum > 0) {
+            for (Row row : sheet) {
+                Object[] singleRow = new Object[columnNum];
+                int n = 0;
+                for (int i = 0; i < columnNum; i++) {
+                    Cell cell = row.getCell(i, Row.MissingCellPolicy.CREATE_NULL_AS_BLANK);
+                    singleRow[n] = getCellValue(cell);
+                    n++;
+                }
+                if ("".equals(singleRow[0])) {
+                    continue;
+                }//如果第一行为空，跳过
+                dataList.add(singleRow);
+            }
+        }
+        return dataList;
+    }
+
+    public Object getCellValue(int sheetIndex,int rowIndex,int colIndex){
+        Row row = wb.getSheetAt(sheetIndex).getRow(rowIndex);
+        Cell cell = row.getCell(colIndex, Row.MissingCellPolicy.CREATE_NULL_AS_BLANK);
+
+        return getCellValue(cell);
+    }
+
+    /**
+     * 获取列的数据信息
+     *
+     * @param cell
+     * @return
+     */
+    private Object getCellValue(Cell cell) {
+        Object cellValue = null;
+        FormulaEvaluator evaluator = wb.getCreationHelper().createFormulaEvaluator();
+
+        switch (cell.getCellType()) {
+            case BLANK:
+                cellValue = "";
+                break;
+            case BOOLEAN:
+                cellValue = Boolean.toString(cell.getBooleanCellValue());
+                break;
+            //数值
+            case NUMERIC:
+                DecimalFormat df = new DecimalFormat("0");
+                double value = cell.getNumericCellValue();
+
+                if (value > Math.floor(value)) {
+                    df = new DecimalFormat("0.00");
+                }
+
+                cellValue = df.format(value);
+                break;
+            case STRING:
+                cellValue = cell.getStringCellValue().trim();
+                break;
+            case ERROR:
+                cellValue = "";
+                break;
+            case FORMULA:
+                CellValue cv = evaluator.evaluate(cell);
+
+                if (cv.getCellType() == CellType.STRING) {
+                    cellValue = cv.getStringValue();
+                } else if (cv.getCellType() == CellType.NUMERIC) {
+                    cellValue = cv.getNumberValue();
+                } else {
+                    cellValue = cell.getCellFormula();
+                }
+
+                break;
+            default:
+                cellValue = "";
+        }
+
+        return cellValue;
+    }
+
+
+    /**
+     * 返回Excel最大行index值，实际行数要加1
+     *
+     * @return
+     */
+    public int getRowNum(int sheetIndex) {
+        Sheet sheet = wb.getSheetAt(sheetIndex);
+        return sheet.getLastRowNum();
+    }
+
+    /**
+     * 返回数据的列数
+     *
+     * @param sheetIndex
+     * @return
+     */
+    public int getColumnNum(int sheetIndex) {
+        Sheet sheet = wb.getSheetAt(sheetIndex);
+        Row row = sheet.getRow(0);
+        if (row != null && row.getLastCellNum() > 0) {
+            return row.getLastCellNum();
+        }
+        return 0;
+    }
+
+    /**
+     * 获取某一行数据
+     *
+     * @param rowIndex 计数从0开始，rowIndex为0代表header行
+     * @return
+     */
+    public Object[] getRowData(int sheetIndex, int rowIndex) {
+        Object[] dataArray = null;
+        if (rowIndex > this.getColumnNum(sheetIndex)) {
+            return dataArray;
+        } else {
+//			dataArray = new Object[this.getColumnNum(sheetIndex)];
+            return this.dataList.get(rowIndex);
+        }
+    }
+
+
+    /**
+     * 获取某一列数据
+     *
+     * @param colIndex
+     * @return
+     */
+    public Object[] getColumnData(int sheetIndex, int colIndex) {
+        Object[] dataArray = null;
+        if (colIndex > this.getColumnNum(sheetIndex)) {
+            return dataArray;
+        } else {
+            if (this.dataList != null && this.dataList.size() > 0) {
+                dataArray = new Object[this.getRowNum(sheetIndex) + 1];
+                int index = 0;
+                for (Object[] rowData : dataList) {
+                    if (rowData != null) {
+                        dataArray[index] = rowData[colIndex];
+                        index++;
+                    }
+                }
+            }
+        }
+
+        return dataArray;
+    }
+
+    public static void main(String[] args) {
+        POIUtils re = new POIUtils("D:\\fpb.xlsx");
+
+        List<Object[]> objList = re.getAllData(0);
+
+        for (int i = 0; i < objList.size(); i++) {
+            String result = "";
+            for (int j = 0; j < objList.get(i).length; j++) {
+                result += objList.get(i)[j] + "_";
+            }
+
+            System.out.println(result);
+        }
+    }
+}