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@@ -2,30 +2,19 @@ package cn.hutool.poi.excel.sax;
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import cn.hutool.core.io.IORuntimeException;
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import cn.hutool.core.io.IoUtil;
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-import cn.hutool.core.text.StrBuilder;
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import cn.hutool.core.util.NumberUtil;
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-import cn.hutool.core.util.ObjectUtil;
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import cn.hutool.core.util.StrUtil;
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-import cn.hutool.poi.excel.cell.FormulaCellValue;
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import cn.hutool.poi.excel.sax.handler.RowHandler;
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import cn.hutool.poi.exceptions.POIException;
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import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
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import org.apache.poi.openxml4j.exceptions.OpenXML4JException;
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import org.apache.poi.openxml4j.opc.OPCPackage;
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-import org.apache.poi.ss.usermodel.BuiltinFormats;
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import org.apache.poi.xssf.eventusermodel.XSSFReader;
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-import org.apache.poi.xssf.model.SharedStringsTable;
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-import org.apache.poi.xssf.model.StylesTable;
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-import org.apache.poi.xssf.usermodel.XSSFCellStyle;
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-import org.xml.sax.Attributes;
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-import org.xml.sax.helpers.DefaultHandler;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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-import java.util.ArrayList;
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import java.util.Iterator;
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-import java.util.List;
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/**
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* Sax方式读取Excel文件<br>
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@@ -34,52 +23,11 @@ import java.util.List;
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* @author Looly
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* @since 3.1.2
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*/
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-public class Excel07SaxReader extends DefaultHandler implements ExcelSaxReader<Excel07SaxReader> {
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+public class Excel07SaxReader implements ExcelSaxReader<Excel07SaxReader> {
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// sheet r:Id前缀
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private static final String RID_PREFIX = "rId";
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-
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- // 单元格的格式表,对应style.xml
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- private StylesTable stylesTable;
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- // excel 2007 的共享字符串表,对应sharedString.xml
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- private SharedStringsTable sharedStringsTable;
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- // sheet的索引
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- private int sheetIndex;
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-
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- // 当前非空行
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- private int index;
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- // 当前列
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- private int curCell;
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- // 单元数据类型
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- private CellDataType cellDataType;
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- // 当前行号,从0开始
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- private long rowNumber;
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- // 当前列坐标, 如A1,B5
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- private String curCoordinate;
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- // 当前节点名称
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- private ElementName curElementName;
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- // 前一个列的坐标
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- private String preCoordinate;
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- // 行的最大列坐标
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- private String maxCellCoordinate;
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- // 单元格样式
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- private XSSFCellStyle xssfCellStyle;
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- // 单元格存储的格式化字符串,nmtFmt的formatCode属性的值
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- private String numFmtString;
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- // 是否处于sheetData标签内,sax只解析此标签内的内容,其它标签忽略
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- private boolean isInSheetData;
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-
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- // 上一次的内容
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- private final StrBuilder lastContent = StrUtil.strBuilder();
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- // 上一次的内容
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- private final StrBuilder lastFormula = StrUtil.strBuilder();
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- // 存储每行的列元素
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- private List<Object> rowCellList = new ArrayList<>();
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-
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- /**
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- * 行处理器
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- */
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- private RowHandler rowHandler;
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+ private final SheetDataSaxHandler handler;
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/**
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* 构造
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@@ -87,7 +35,7 @@ public class Excel07SaxReader extends DefaultHandler implements ExcelSaxReader<E
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* @param rowHandler 行处理器
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*/
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public Excel07SaxReader(RowHandler rowHandler) {
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- this.rowHandler = rowHandler;
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+ this.handler = new SheetDataSaxHandler(rowHandler);
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}
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/**
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@@ -97,7 +45,7 @@ public class Excel07SaxReader extends DefaultHandler implements ExcelSaxReader<E
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* @return this
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*/
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public Excel07SaxReader setRowHandler(RowHandler rowHandler) {
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- this.rowHandler = rowHandler;
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+ this.handler.setRowHandler(rowHandler);
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return this;
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}
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@@ -174,14 +122,14 @@ public class Excel07SaxReader extends DefaultHandler implements ExcelSaxReader<E
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public Excel07SaxReader read(XSSFReader xssfReader, String idOrRid) throws POIException {
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// 获取共享样式表
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try {
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- stylesTable = xssfReader.getStylesTable();
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+ this.handler.stylesTable = xssfReader.getStylesTable();
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} catch (Exception e) {
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//ignore
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}
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// 获取共享字符串表
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try {
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- this.sharedStringsTable = xssfReader.getSharedStringsTable();
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+ this.handler.sharedStringsTable = xssfReader.getSharedStringsTable();
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} catch (IOException e) {
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throw new IORuntimeException(e);
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} catch (InvalidFormatException e) {
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@@ -192,89 +140,6 @@ public class Excel07SaxReader extends DefaultHandler implements ExcelSaxReader<E
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}
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// ------------------------------------------------------------------------------ Read end
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- /**
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- * 读到一个xml开始标签时的回调处理方法
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- */
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- @Override
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- public void startElement(String uri, String localName, String qName, Attributes attributes) {
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- if("sheetData".equals(qName)){
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- this.isInSheetData = true;
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- return;
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- }
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-
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- if(false == this.isInSheetData){
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- // 非sheetData标签,忽略解析
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- return;
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- }
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-
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- final ElementName name = ElementName.of(qName);
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- this.curElementName = name;
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-
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- if(null != name){
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- switch (name){
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- case row:
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- // 行开始
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- startRow(attributes);
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- break;
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- case c:
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- // 单元格元素
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- startCell(attributes);
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- break;
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- }
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- }
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- }
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-
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- /**
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- * 标签结束的回调处理方法
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- */
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- @Override
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- public void endElement(String uri, String localName, String qName) {
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- if("sheetData".equals(qName)){
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- // sheetData结束,不再解析别的标签
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- this.isInSheetData = false;
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- return;
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- }
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-
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- if(false == this.isInSheetData){
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- // 非sheetData标签,忽略解析
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- return;
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- }
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-
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- this.curElementName = null;
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- if (ElementName.c.match(qName)) { // 单元格结束
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- endCell();
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- } else if (ElementName.row.match(qName)) {// 行结束
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- endRow();
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- }
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- // 其它标签忽略
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- }
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-
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- /**
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- * s标签结束的回调处理方法
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- */
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- @Override
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- public void characters(char[] ch, int start, int length) {
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- if(false == this.isInSheetData){
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- // 非sheetData标签,忽略解析
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- return;
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- }
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-
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- final ElementName elementName = this.curElementName;
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- if(null != elementName){
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- switch (elementName){
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- case v:
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- // 得到单元格内容的值
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- lastContent.append(ch, start, length);
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- break;
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- case f:
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- // 得到单元格内容的值
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- lastFormula.append(ch, start, length);
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- break;
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- }
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- }
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- // 其它标签忽略
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- }
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-
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// --------------------------------------------------------------------------------------- Private method start
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/**
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@@ -295,25 +160,25 @@ public class Excel07SaxReader extends DefaultHandler implements ExcelSaxReader<E
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idOrRid = rid;
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}
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}
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- this.sheetIndex = Integer.parseInt(StrUtil.removePrefixIgnoreCase(idOrRid, RID_PREFIX));
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+ this.handler.sheetIndex = Integer.parseInt(StrUtil.removePrefixIgnoreCase(idOrRid, RID_PREFIX));
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InputStream sheetInputStream = null;
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try {
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- if (this.sheetIndex > -1) {
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+ if (this.handler.sheetIndex > -1) {
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// 根据 rId# 或 rSheet# 查找sheet
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- sheetInputStream = xssfReader.getSheet(RID_PREFIX + (this.sheetIndex + 1));
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- ExcelSaxUtil.readFrom(sheetInputStream, this);
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- rowHandler.doAfterAllAnalysed();
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+ sheetInputStream = xssfReader.getSheet(RID_PREFIX + (this.handler.sheetIndex + 1));
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+ ExcelSaxUtil.readFrom(sheetInputStream, this.handler);
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+ this.handler.rowHandler.doAfterAllAnalysed();
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} else {
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- this.sheetIndex = -1;
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+ this.handler.sheetIndex = -1;
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// 遍历所有sheet
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final Iterator<InputStream> sheetInputStreams = xssfReader.getSheetsData();
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while (sheetInputStreams.hasNext()) {
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// 重新读取一个sheet时行归零
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- index = 0;
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- this.sheetIndex++;
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+ this.handler.index = 0;
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+ this.handler.sheetIndex++;
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sheetInputStream = sheetInputStreams.next();
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- ExcelSaxUtil.readFrom(sheetInputStream, this);
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- rowHandler.doAfterAllAnalysed();
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+ ExcelSaxUtil.readFrom(sheetInputStream, this.handler);
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+ this.handler.rowHandler.doAfterAllAnalysed();
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}
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}
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} catch (RuntimeException e) {
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@@ -325,143 +190,5 @@ public class Excel07SaxReader extends DefaultHandler implements ExcelSaxReader<E
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}
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return this;
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}
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-
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- /**
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- * 行开始
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- *
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- * @param attributes 属性列表
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- */
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- private void startRow(Attributes attributes) {
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- final String rValue = AttributeName.r.getValue(attributes);
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- if(null != rValue){
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- this.rowNumber = Long.parseLong(rValue) - 1;
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- }
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- }
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-
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- /**
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- * 单元格开始
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- *
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- * @param attributes 属性列表
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- */
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- private void startCell(Attributes attributes) {
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- // 获取当前列坐标
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- final String tempCurCoordinate = AttributeName.r.getValue(attributes);
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- // 前一列为null,则将其设置为"@",A为第一列,ascii码为65,前一列即为@,ascii码64
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- if (preCoordinate == null) {
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- preCoordinate = String.valueOf(ExcelSaxUtil.CELL_FILL_CHAR);
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- } else {
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- // 存在,则前一列要设置为上一列的坐标
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- preCoordinate = curCoordinate;
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- }
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- // 重置当前列
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- curCoordinate = tempCurCoordinate;
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- // 设置单元格类型
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- setCellType(attributes);
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-
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- // 清空之前的数据
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- lastContent.reset();
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- lastFormula.reset();
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- }
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-
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- /**
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- * 一个单元格结尾
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- */
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- private void endCell() {
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- // 补全单元格之间的空格
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- fillBlankCell(preCoordinate, curCoordinate, false);
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-
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- final String contentStr = StrUtil.trim(lastContent);
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- Object value = ExcelSaxUtil.getDataValue(this.cellDataType, contentStr, this.sharedStringsTable, this.numFmtString);
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- if(false == this.lastFormula.isEmpty()){
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- value = new FormulaCellValue(StrUtil.trim(lastFormula), value);
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- }
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- addCellValue(curCell++, value);
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- }
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-
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- /**
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- * 一行结尾
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- */
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- private void endRow() {
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- // 最大列坐标以第一个非空行的为准
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- if (index == 0) {
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- maxCellCoordinate = curCoordinate;
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- }
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-
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- // 补全一行尾部可能缺失的单元格
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- if (maxCellCoordinate != null) {
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- fillBlankCell(curCoordinate, maxCellCoordinate, true);
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- }
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-
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- rowHandler.handle(sheetIndex, rowNumber, rowCellList);
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-
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- // 一行结束
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- // 新建一个新列,之前的列抛弃(可能被回收或rowHandler处理)
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- rowCellList = new ArrayList<>(curCell + 1);
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- // 行数增加
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- index++;
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- // 当前列置0
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- curCell = 0;
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- // 置空当前列坐标和前一列坐标
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- curCoordinate = null;
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- preCoordinate = null;
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- }
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-
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- /**
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- * 在一行中的指定列增加值
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- *
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- * @param index 位置
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- * @param value 值
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- */
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- private void addCellValue(int index, Object value) {
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- this.rowCellList.add(index, value);
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- this.rowHandler.handleCell(this.sheetIndex, this.rowNumber, index, value, this.xssfCellStyle);
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- }
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-
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- /**
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- * 填充空白单元格,如果前一个单元格大于后一个,不需要填充<br>
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- *
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- * @param preCoordinate 前一个单元格坐标
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- * @param curCoordinate 当前单元格坐标
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- * @param isEnd 是否为最后一个单元格
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- */
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- private void fillBlankCell(String preCoordinate, String curCoordinate, boolean isEnd) {
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- if (false == curCoordinate.equals(preCoordinate)) {
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- int len = ExcelSaxUtil.countNullCell(preCoordinate, curCoordinate);
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- if (isEnd) {
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- len++;
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- }
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- while (len-- > 0) {
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- addCellValue(curCell++, StrUtil.EMPTY);
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- }
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- }
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- }
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-
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- /**
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- * 设置单元格的类型
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- *
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- * @param attributes 属性
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- */
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- private void setCellType(Attributes attributes) {
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- // numFmtString的值
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- numFmtString = StrUtil.EMPTY;
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- this.cellDataType = CellDataType.of(AttributeName.t.getValue(attributes));
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-
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- // 获取单元格的xf索引,对应style.xml中cellXfs的子元素xf
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- if (null != this.stylesTable) {
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- final String xfIndexStr = AttributeName.s.getValue(attributes);
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- if (null != xfIndexStr) {
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- this.xssfCellStyle = stylesTable.getStyleAt(Integer.parseInt(xfIndexStr));
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- // 单元格存储格式的索引,对应style.xml中的numFmts元素的子元素索引
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- final int numFmtIndex = xssfCellStyle.getDataFormat();
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- this.numFmtString = ObjectUtil.defaultIfNull(
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- xssfCellStyle.getDataFormatString(),
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- BuiltinFormats.getBuiltinFormat(numFmtIndex));
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- if (CellDataType.NUMBER == this.cellDataType && ExcelSaxUtil.isDateFormat(numFmtIndex, numFmtString)) {
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- cellDataType = CellDataType.DATE;
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- }
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- }
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- }
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-
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- }
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// --------------------------------------------------------------------------------------- Private method end
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}
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