我正在尝试使用Apache Poi将ResultSet写入Excel(* .xlsx)表.
Office Excel中的表对象错误无效
但是,即使它写入Excel文件没有任何错误,当我尝试在Office Excel 2013中打开它时,它会显示错误并删除表对象以仅提供纯数据视图.
这是粗略的示例代码using this example：
public static void writeExcel(ResultSet rs,int sqliteRowCount,String dir) {
System.out.println("Writing Excel(*.xlsx) File...");
XSSFWorkbook workbook = null;
try {
if (rs != null) {
// Get ResultSet MetaData
ResultSetMetaData rsmd = rs.getMetaData();
// Number of columns
int numColumns = rsmd.getColumnCount();
// Number of rows
// + 1 for headers
int numRows = sqliteRowCount + 1;
workbook = new XSSFWorkbook();
// Create Excel Table
XSSFSheet sheet = workbook.createSheet("Text");
XSSFTable table = sheet.createTable();
table.setdisplayName("Test");
CTTable cttable;
cttable = table.getCTTable();
// Style configurations
CTTableStyleInfo style = cttable.addNewTableStyleInfo();
style.setName("TableStyleMedium16");
style.setShowColumnStripes(false);
style.setShowRowStripes(true);
// Set Table Span Area
AreaReference reference = new AreaReference(new CellReference(0,0),new CellReference(numRows - 1,numColumns - 1));
cttable.setRef(reference.formatAsstring());
cttable.setId(1);
cttable.setName("Test");
cttable.setdisplayName("Test");
cttable.setTotalsRowCount(numRows);
cttable.setTotalsRowShown(false);
// Create Columns
CTTableColumns columns = cttable.addNewTableColumns();
columns.setCount(numColumns);
// Create Column,Row,Cell Objects
CTTableColumn column;
XSSFRow row;
// Add Header and Columns
XSSFRow headerRow = sheet.createRow(0);
for (int i = 0; i < numColumns; i++) {
column = columns.addNewTableColumn();
column.setName("Column" + (i + 1));
column.setId(i + 1);
headerRow.createCell(i).setCellValue(rsmd.getColumnLabel(i + 1));
}
// Write each row from ResultSet
int rowNumber = 1;
while (rs.next()) {
row = sheet.createRow(rowNumber);
for (int y = 0; y < numColumns; y++) {
row.createCell(y).setCellValue(rs.getString(y + 1));
}
rowNumber++;
}
// Set AutoFilter
CTAutoFilter fltr = CTAutoFilter.Factory.newInstance();
fltr.setRef((new AreaReference(new CellReference(0,numColumns - 1))).formatAsstring());
cttable.setAutoFilter(fltr);
// sheet.setAutoFilter(CellRangeAddress.valueOf((new AreaReference(new CellReference(0,numColumns - 1))).formatAsstring()));
// Freeze Pan
sheet.createFreezePane(0,1,2);
}
} catch (sqlException ex) {
System.out.println("sql Error while writing Excel file!");
} finally {
try {
// Let's write the excel file Now
if (workbook != null) {
String excelDir = dir + File.separator + "workbook.xlsx";
try (final FileOutputStream out = new FileOutputStream(excelDir)) {
workbook.write(out);
}
}
} catch (IOException ex) {
System.out.println("IO Error while writing Excel summary file!");
}
}
}
我知道我的代码有问题,但无法弄明白.
任何想法,为什么会发生这种情况,我的代码中可能存在错误.
更新1：
如果使用Apache POI创建,则在Excel存档中使用表格XML文件
<?xml version="1.0" encoding="UTF-8"?> <table displayName="Test" ref="A1:B881" id="1" name="Test" totalsRowCount="881" xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" totalsRowShown="0"><autoFilter ref="A1:B881"/><tableColumns count="2"><tableColumn name="ID" id="1"/><tableColumn name="Name" id="2"/><tableStyleInfo name="TableStyleMedium2" showColumnStripes="true" showRowStripes="true"/></table>
如果手动创建表,则在Excel归档中使用表格XML文件
<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <table xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" id="1" name="Table1" displayName="Table1" ref="A1:B881" totalsRowShown="0"><autoFilter ref="A1:B881"/><tableColumns count="2"><tableColumn id="1" name="ID"/><tableColumn id="2" name="Name"/></tableColumns><tableStyleInfo name="TableStyleLight9" showFirstColumn="0" showLastColumn="0" showRowStripes="1" showColumnStripes="0"/></table>
此外,如果我打开Excel存档,它在Apache POI创建的主题文件夹中没有主题文件夹,但它存在于Office Excel中手动创建的主题文件夹中.奇怪.
更新2：
示例可执行代码(使用Netbeans)：
/*
* To change this license header,choose License Headers in Project Properties.
* To change this template file,choose Tools | Templates
* and open the template in the editor.
*/
package apachepoi_exceltest;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.apache.poi.ss.util.AreaReference;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellReference;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFTable;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTable;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableColumn;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableColumns;
import org.openxmlformats.schemas.spreadsheetml.x2006.main.CTTableStyleInfo;
/**
*
*/
public class ApachePOI_ExcelTest {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
String outputDir = "Your Local Directory Here";
// Todo code application logic here
HashMap<String,String> dataMap = new HashMap<>();
dataMap.put("ID 1","Dummy Name 1");
dataMap.put("ID 2","Dummy Name 2");
dataMap.put("ID 3","Dummy Name 3");
dataMap.put("ID 4","Dummy Name 4");
writeExcel(dataMap,outputDir);
}
private static void writeExcel(HashMap<String,String> dataMap,String outputDir) {
System.out.println("Writing Excel(*.xlsx) Summary File...");
XSSFWorkbook workbook = null;
try {
// Number of columns
int numColumns = 2; // ID and Name
// Number of rows
int numRows = dataMap.size() + 1; // +1 for header
// Create Workbook
workbook = new XSSFWorkbook();
// Create Excel Table
XSSFSheet sheet = workbook.createSheet("Summary");
XSSFTable table = sheet.createTable();
table.setdisplayName("Test");
CTTable cttable;
cttable = table.getCTTable();
// Style configurations
CTTableStyleInfo style = cttable.addNewTableStyleInfo();
style.setName("TableStyleMedium16");
style.setShowColumnStripes(false);
style.setShowRowStripes(true);
// Set Tabel Span Area
AreaReference reference = new AreaReference(new CellReference(0,numColumns - 1));
cttable.setRef(reference.formatAsstring());
cttable.setId(1);
cttable.setName("Test");
cttable.setdisplayName("Test");
cttable.setTotalsRowCount(numRows);
cttable.setTotalsRowShown(false);
// Create Columns
CTTableColumns columns = cttable.addNewTableColumns();
columns.setCount(numColumns);
// Create Column,Cell Objects
CTTableColumn column;
XSSFRow row;
// Add ID Header
column = columns.addNewTableColumn();
column.setName("Column" + (1));
column.setId(1);
// Add Name Header
column = columns.addNewTableColumn();
column.setName("Column" + (1));
column.setId(1);
// Add Header Row
XSSFRow headerRow = sheet.createRow(0);
headerRow.createCell(0).setCellValue("ID");
headerRow.createCell(1).setCellValue("Name");
int rowNumber = 1;
for (Map.Entry<String,String> entry : dataMap.entrySet()) {
String id = entry.getKey();
String name = entry.getValue();
row = sheet.createRow(rowNumber);
row.createCell(0).setCellValue(id);
row.createCell(1).setCellValue(name);
rowNumber++;
}
// Set Filter (Below three lines code somehow not working in this example,so setting AutoFilter to WorkSheet)
// CTAutoFilter fltr = CTAutoFilter.Factory.newInstance();
// fltr.setRef((new AreaReference(new CellReference(0,numColumns - 1))).formatAsstring());
// cttable.setAutoFilter(fltr);
sheet.setAutoFilter(CellRangeAddress.valueOf((new AreaReference(new CellReference(0,numColumns - 1))).formatAsstring()));
// Freeze First Row as header Row
sheet.createFreezePane(0,2);
} catch (Exception ex) {
System.out.println("Error while writing Excel summary file!");
} finally {
try {
// Lets write the Excel File Now
if (workbook != null) {
String excelDir = outputDir + File.separator + "workbook.xlsx";
try (final FileOutputStream out = new FileOutputStream(excelDir)) {
workbook.write(out);
}
}
} catch (IOException ex) {
System.out.println("IO Error while writing Excel summary file!");
}
}
}
}
使用的库：
OOXML-模式-1.1.jar
POI-3.11-beta2-20140822.jar
POI-OOXML-3.11-beta2-20140822.jar
XMLBeans的-2.6.0.jar
解决方法
你的代码出了什么问题就是存在一行. “cttable.setTotalsRowCount(numRows行);” 删除它,一切都会工作. 如果有疑问,请比较在Excel中手动创建的某些工作表的XML定义以及使用Apache POI创建的定义