我正在尝试创建一个 2007 年的 excel 文件。从其他文件创建 Excel 的场景。
输入文件：- InputFile.xlsx 一张纸
计算文件：- Model.xlsx 有四张
计算文件说明：- 1）第一张表是输入文件 2）第二张表是输出 3）第三张和第四张表是计算表。
在 Java 中使用 Apache POI 我正在阅读 Excel 文件。在一个函数中，我正在读取文件，获取输入文件InputFiles.xlsx
在第二个函数中，我正在合并model.xlsx文件中的两张表。即在第一张Model.xlsx合并的第一张InputFile.xlsx
在第三个函数中，我正在读取输出，写入model.xlsx和读取后会产生影响。
Merging function as follows
public void writeXLSXFile(String modelid, String inputfile) throws SQLException, ClassNotFoundException
{
try
{
String realPath = context.getRealPath("/");
String DestPath = "";
InputStream ExcelFileToRead = new FileInputStream(inputfile);
XSSFWorkbook wbip = new XSSFWorkbook(ExcelFileToRead);
DestPath = realPath + "WEB-INF/classes/uploadfiles/Model.xlsx";
NPOIFSFileSystem fs = new NPOIFSFileSystem(new File(DestPath));
EncryptionInfo info = new EncryptionInfo(fs);
Decryptor d = Decryptor.getInstance(info);
XSSFWorkbook wb = null;
try
{
if (d.verifyPassword("MUSDCM"))
{
wb = new XSSFWorkbook(d.getDataStream(fs));
} else
{
System.out.println("Wrong Password");
}
} catch (GeneralSecurityException ex)
{
}
XSSFSheet sheet = wb.getSheetAt(0);
wb.removeSheetAt(0);
wb.removeSheetAt(3);
wb.createSheet("2.2 Parameter Estimates");
wb.createSheet("Raw Macro Data");
wb.setSheetOrder("DCM_Implementation_v09.csv", 1);
wb.setSheetOrder("Excel Model_IG", 2);
wb.setSheetOrder("Excel Model_HY", 3);
wb.setSheetOrder("Raw Macro Data", 4);
wb.setSheetOrder("2.2 Parameter Estimates", 0);
sheet = wb.getSheetAt(0);
XSSFRow row = sheet.createRow(1);
XSSFCell cell = row.createCell(1);
cell.setCellValue("Investment Grade Bond Issuance Volume Model");
cell = row.createCell(4);
cell.setCellValue("High Yield Bond Issuance Volume Model");
row = sheet.createRow(3);
cell = row.createCell(1);
cell.setCellValue("Independent Variables");
cell = row.createCell(2);
cell.setCellValue("Coefficients");
cell = row.createCell(4);
cell.setCellValue("Independent Variables");
cell = row.createCell(5);
cell.setCellValue("Coefficients");
int rowNumber = 4;
Class.forName("com.mysql.jdbc.Driver");
Connection con = getConnection();
Statement st = con.createStatement();
ResultSet rs = st.executeQuery("SELECT s.volumename,s.id,s.parameter,s.value,m.model_name FROM singlevalue_table s inner join model_inventory m on s.modelid =m.modelid and s.modelid=" + modelid);
ArrayList InBond = new ArrayList();
ArrayList HnBond = new ArrayList();
while (rs.next())
{
if ("Investment Grade Bond Issuance Volume Model".equals(rs.getString("s.volumename")))
{
InBond.add(rs.getString("s.parameter"));
InBond.add(rs.getString("s.value"));
} else if ("High Yield Bond Issuance Volume Model".equals(rs.getString("s.volumename")))
{
HnBond.add(rs.getString("s.parameter"));
HnBond.add(rs.getString("s.value"));
}
}
int maxcount = ((InBond.size() >= HnBond.size()) ? InBond.size() : HnBond.size());
int count1 = 0;
int count2 = 0;
for (int j = 0; j < maxcount / 2; j++)
{
row = sheet.createRow(j + 4);
if (j < (InBond.size() / 2))
{
cell = row.createCell(1);
cell.setCellValue((String) InBond.get(count1));
cell = row.createCell(2);
cell.setCellValue((String) InBond.get(count1 + 1));
count1 += 2;
}
if (j < (HnBond.size() / 2))
{
cell = row.createCell(4);
cell.setCellValue((String) HnBond.get(count2));
cell = row.createCell(5);
cell.setCellValue((String) HnBond.get(count2 + 1));
count2 += 2;
}
}
wb = CopySheet(wbip, wb);
try
{
wb.setForceFormulaRecalculation(true);
FileOutputStream fileOut = new FileOutputStream(DestPath);
wb.write(fileOut);
wbip.close();
wb.close();
fs.close();
fileOut.close();
} catch (IOException e)
{
e.printStackTrace();
}
//Add password protection and encrypt the file
fs = null;
info = null;
fs = new NPOIFSFileSystem();
info = new EncryptionInfo(fs, EncryptionMode.binaryRC4);
Encryptor enc = info.getEncryptor();
enc.confirmPassword("MUSDCM");
OPCPackage opc = OPCPackage.open(new File(DestPath), PackageAccess.READ_WRITE);
OutputStream os = enc.getDataStream(fs);
opc.save(os);
opc.close();
FileOutputStream fos = new FileOutputStream(DestPath);
fs.writeFilesystem(fos);
fos.close();
fs.close();
ExcelFileToRead.close();
System.out.println("File created!!");
} catch (Exception ex)
{
Logger.getLogger(resource.class.getName()).log(Level.SEVERE, null, ex);
}
}
Reading output from Model.xlsx function as follows
public Response readXLSXFileWithSecondSheet(@QueryParam("modelid") String modelid) throws IOException, GeneralSecurityException
{
try
{
String realPath = context.getRealPath("/");
String DestPath = realPath + "WEB-INF/classes/uploadfiles/DCM_Implementation_v10.xlsx";
NPOIFSFileSystem fs = new NPOIFSFileSystem(new File(DestPath));
EncryptionInfo info = new EncryptionInfo(fs);
Decryptor d = Decryptor.getInstance(info);
XSSFWorkbook wb = null;
if (d.verifyPassword("MUSDCM"))
{
wb = new XSSFWorkbook(d.getDataStream(fs));
wb.setForceFormulaRecalculation(true);
} else
{
System.out.println("Wrong Password");
}
XSSFSheet sheet = (XSSFSheet) wb.getSheetAt(1);
XSSFRow row;
XSSFCell cell;
ArrayList Heading = new ArrayList();
ArrayList<graphdata> Basemap = new ArrayList<graphdata>();
ArrayList<graphdata> Adversemap = new ArrayList<graphdata>();
ArrayList<graphdata> SeverelyAdversemap = new ArrayList<graphdata>();
ArrayList<graphdata> BHCBasemap = new ArrayList<graphdata>();
ArrayList<graphdata> BHCSeverelyAdversemap = new ArrayList<graphdata>();
String ModelName = "Investment Grade Bond Issuance Volume Model";
Iterator rows = sheet.rowIterator();
while (rows.hasNext())
{
row = (XSSFRow) rows.next();
Iterator cells = row.cellIterator();
//int columnNo = 1;
int CCARCount = 0;
graphdata g1 = new graphdata();
graphdata g2 = new graphdata();
graphdata g3 = new graphdata();
graphdata g4 = new graphdata();
graphdata g5 = new graphdata();
while (cells.hasNext())
{
cell = (XSSFCell) cells.next();
int ActulaColINdex = cell.getColumnIndex();
if (cell.getCellType() == XSSFCell.CELL_TYPE_BLANK)
{
continue;
}
if (cell.getCellType() == XSSFCell.CELL_TYPE_STRING)
{
if (((String) cell.getRichStringCellValue().getString()).equals(ModelName) && cell.getColumnIndex() == 1)
{
ModelName = (String) cell.getRichStringCellValue().getString();
continue;
}
if (((String) cell.getRichStringCellValue().getString()).equals("High Yield Bond Issuance Volume Model") && cell.getColumnIndex() == 1)
{
ModelName = (String) cell.getRichStringCellValue().getString();
continue;
}
String FindCCAR = (String) cell.getRichStringCellValue().getString();
if (FindCCAR.contains("CCAR"))
{
continue;
}
if (FindCCAR.contains("CCAR"))
{
switch (CCARCount)
{
case 0:
Heading.add(FindCCAR);
break;
case 1:
Heading.add(FindCCAR);
break;
case 2:
Heading.add(FindCCAR);
break;
case 3:
Heading.add(FindCCAR);
break;
case 4:
Heading.add(FindCCAR);
break;
}
CCARCount++;
}
if (FindCCAR.contains("Date") || FindCCAR.contains("Model") || FindCCAR.contains("Diff"))
{
continue;
}
if (ActulaColINdex <= 5 && ActulaColINdex >= 1) //Base
{
if (ActulaColINdex == 1)
{
g1.setVolumeName(ModelName);
g1.setModelName("Base");
g1.setYear(cell.getRichStringCellValue().toString());
}
//System.out.print(cell.getRichStringCellValue() + " ");
}
if (ActulaColINdex <= 11 && ActulaColINdex >= 7) //Adverse
{
if (ActulaColINdex == 7)
{
g2.setVolumeName(ModelName);
g2.setModelName("Adverse");
g2.setYear(cell.getRichStringCellValue().toString());
}
//System.out.print(cell.getRichStringCellValue() + " ");
}
if (ActulaColINdex <= 17 && ActulaColINdex >= 13) //Severly Adverse
{
if (ActulaColINdex == 13)
{
g3.setVolumeName(ModelName);
g3.setModelName("Severely Adverse");
g3.setYear(cell.getRichStringCellValue().toString());
}
//System.out.print(cell.getRichStringCellValue() + " ");
}
if (ActulaColINdex <= 23 && ActulaColINdex >= 19) //BHC Base
{
if (ActulaColINdex == 19)
{
g4.setVolumeName(ModelName);
g4.setModelName("BHC Base");
g4.setYear(cell.getRichStringCellValue().toString());
}
//System.out.print(cell.getRichStringCellValue() + " ");
}
if (ActulaColINdex <= 30 && ActulaColINdex >= 26) //BHC Severly Adverse
{
if (ActulaColINdex == 26)
{
g5.setVolumeName(ModelName);
g5.setModelName("BHC Severely Adverse");
g5.setYear(cell.getRichStringCellValue().toString());
}
//System.out.print(cell.getRichStringCellValue() + " ");
}
} else if (cell.getCellType() == XSSFCell.CELL_TYPE_NUMERIC)
{
if (ActulaColINdex <= 5 && ActulaColINdex >= 1) //Base
{
if (ActulaColINdex == 2)
{
g1.setSasmodel(cell.getNumericCellValue());
}
}
if (ActulaColINdex <= 11 && ActulaColINdex >= 7) //Adverse
{
if (ActulaColINdex == 8)
{
g2.setSasmodel(cell.getNumericCellValue());
}
}
if (ActulaColINdex <= 17 && ActulaColINdex >= 13) //Severly Adverse
{
if (ActulaColINdex == 14)
{
g3.setSasmodel(cell.getNumericCellValue());
}
}
if (ActulaColINdex <= 23 && ActulaColINdex >= 19) //BHC Base
{
if (ActulaColINdex == 20)
{
g4.setSasmodel(cell.getNumericCellValue());
}
}
if (ActulaColINdex <= 30 && ActulaColINdex >= 26) //BHC Severly Advrse
{
if (ActulaColINdex == 27)
{
g5.setSasmodel(cell.getNumericCellValue());
}
}
} else if (cell.getCellType() == XSSFCell.CELL_TYPE_FORMULA)
{
switch (cell.getCachedFormulaResultType())
{
case Cell.CELL_TYPE_NUMERIC:
{
if (ActulaColINdex <= 5 && ActulaColINdex >= 1) //Base
{
if (ActulaColINdex == 3)
{
g1.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 4)
{
g1.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 5)
{
g1.setDiffper(cell.getNumericCellValue());
Basemap.add(g1);
}
}
if (ActulaColINdex <= 11 && ActulaColINdex >= 7) //Adverse
{
if (ActulaColINdex == 9)
{
g2.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 10)
{
g2.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 11)
{
g2.setDiffper(cell.getNumericCellValue());
Adversemap.add(g2);
}
}
if (ActulaColINdex <= 17 && ActulaColINdex >= 13) //SeverlyAdverse
{
if (ActulaColINdex == 15)
{
g3.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 16)
{
g3.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 17)
{
g3.setDiffper(cell.getNumericCellValue());
SeverelyAdversemap.add(g3);
}
}
if (ActulaColINdex <= 23 && ActulaColINdex >= 19)//BHC Base
{
if (ActulaColINdex == 21)
{
g4.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 22)
{
g4.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 23)
{
g4.setDiffper(cell.getNumericCellValue());
BHCBasemap.add(g4);
}
}
if (ActulaColINdex <= 30 && ActulaColINdex >= 26)//BHC Severly Adverse
{
if (ActulaColINdex == 28)
{
g5.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 29)
{
g5.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 30)
{
g5.setDiffper(cell.getNumericCellValue());
BHCSeverelyAdversemap.add(g5);
}
}
}
break;
case Cell.CELL_TYPE_STRING:
{
if (ActulaColINdex <= 5 && ActulaColINdex >= 1)//Base
{
if (ActulaColINdex == 3)
{
g1.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 4)
{
g1.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 5)
{
g1.setDiffper(cell.getNumericCellValue());
Basemap.add(g1);
}
}
if (ActulaColINdex <= 11 && ActulaColINdex >= 7) //Adverse
{
if (ActulaColINdex == 9)
{
g2.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 10)
{
g2.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 11)
{
g2.setDiffper(cell.getNumericCellValue());
Adversemap.add(g2);
}
}
if (ActulaColINdex <= 17 && ActulaColINdex >= 13) //SeverlyAdverse
{
if (ActulaColINdex == 15)
{
g3.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 16)
{
g3.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 17)
{
g3.setDiffper(cell.getNumericCellValue());
SeverelyAdversemap.add(g3);
}
ActulaColINdex++;
}
if (ActulaColINdex <= 23 && ActulaColINdex >= 19)//BHC Base
{
if (ActulaColINdex == 21)
{
g4.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 22)
{
g4.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 23)
{
g4.setDiffper(cell.getNumericCellValue());
BHCBasemap.add(g4);
}
}
if (ActulaColINdex <= 30 && ActulaColINdex >= 26)//BHC Severly Adverse
{
if (ActulaColINdex == 28)
{
g5.setXxcelmodel(cell.getNumericCellValue());
}
if (ActulaColINdex == 29)
{
g5.setDiff(cell.getNumericCellValue());
}
if (ActulaColINdex == 30)
{
g5.setDiffper(cell.getNumericCellValue());
BHCSeverelyAdversemap.add(g5);
}
}
}
break;
}
} else
{
//U Can Handel Boolean, Formula, Errors
}
}
System.out.println();
}
wb.close();
fs.close();
System.out.println("-----------------------Base----------------------");
Class.forName("com.mysql.jdbc.Driver");
Connection con;
con = getConnection();
Statement st = con.createStatement();
String sql1 = "delete from outputtable where modelid=" + modelid;
int flag1 = st.executeUpdate(sql1);
for (int i = 0; i < Basemap.size(); i++)
{
graphdata g = (graphdata) Basemap.get(i);
String sql = "INSERT INTO outputtable (VolumeName,ModelName,year,sasmodel,excelmodel,diff,diffper,modelid)"
+ " VALUES ('" + g.getVolumeName() + "','" + g.getModelName() + "','" + g.getYear() + "', " + g.getSasmodel() + ", " + g.getXxcelmodel() + ", " + g.getDiff() + ", " + g.getDiffper() + ", " + modelid + ")";
st.executeUpdate(sql);
System.out.println(g.getVolumeName() + "" + g.getYear() + "" + g.getModelName() + "" + g.getSasmodel() + "" + g.getXxcelmodel());
}
System.out.println("-----------------------Advrse----------------------");
for (int i = 0; i < Adversemap.size(); i++)
{
graphdata g = (graphdata) Adversemap.get(i);
String sql = "INSERT INTO outputtable (`outputtable`.`VolumeName`,`outputtable`.`ModelName`,`outputtable`.`year`,`outputtable`.`sasmodel`,`outputtable`.`excelmodel`,`outputtable`.`diff`,`outputtable`.`diffper`,`outputtable`.`modelid`)"
+ " VALUES ('" + g.getVolumeName() + "','" + g.getModelName() + "','" + g.getYear() + "', " + g.getSasmodel() + ", " + g.getXxcelmodel() + ", " + g.getDiff() + ", " + g.getDiffper() + ", " + modelid + ")";
st.executeUpdate(sql);
System.out.println(g.getVolumeName() + "" + g.getYear() + "" + g.getModelName() + "" + g.getSasmodel() + "" + g.getXxcelmodel());
}
System.out.println("-----------------------Severly Advers----------------------");
for (int i = 0; i < SeverelyAdversemap.size(); i++)
{
graphdata g = (graphdata) SeverelyAdversemap.get(i);
String sql = "INSERT INTO outputtable (`outputtable`.`VolumeName`,`outputtable`.`ModelName`,`outputtable`.`year`,`outputtable`.`sasmodel`,`outputtable`.`excelmodel`,`outputtable`.`diff`,`outputtable`.`diffper`,`outputtable`.`modelid`)"
+ " VALUES ('" + g.getVolumeName() + "','" + g.getModelName() + "','" + g.getYear() + "', " + g.getSasmodel() + ", " + g.getXxcelmodel() + ", " + g.getDiff() + ", " + g.getDiffper() + ", " + modelid + ")";
st.executeUpdate(sql);
System.out.println(g.getVolumeName() + "" + g.getYear() + "" + g.getModelName() + "" + g.getSasmodel() + "" + g.getXxcelmodel());
}
System.out.println("-----------------------BHC Base----------------------");
for (int i = 0; i < BHCBasemap.size(); i++)
{
graphdata g = (graphdata) BHCBasemap.get(i);
String sql = "INSERT INTO outputtable (`outputtable`.`VolumeName`,`outputtable`.`ModelName`,`outputtable`.`year`,`outputtable`.`sasmodel`,`outputtable`.`excelmodel`,`outputtable`.`diff`,`outputtable`.`diffper`,`outputtable`.`modelid`)"
+ " VALUES ('" + g.getVolumeName() + "','" + g.getModelName() + "','" + g.getYear() + "', " + g.getSasmodel() + ", " + g.getXxcelmodel() + ", " + g.getDiff() + ", " + g.getDiffper() + ", " + modelid + ")";
st.executeUpdate(sql);
System.out.println(g.getVolumeName() + "" + g.getYear() + "" + g.getModelName() + "" + g.getSasmodel() + "" + g.getXxcelmodel());
}
System.out.println("-----------------------BHC Severly Adve----------------------");
for (int i = 0; i < BHCSeverelyAdversemap.size(); i++)
{
graphdata g = (graphdata) BHCSeverelyAdversemap.get(i);
String sql = "INSERT INTO outputtable (`outputtable`.`VolumeName`,`outputtable`.`ModelName`,`outputtable`.`year`,`outputtable`.`sasmodel`,`outputtable`.`excelmodel`,`outputtable`.`diff`,`outputtable`.`diffper`,`outputtable`.`modelid`)"
+ " VALUES ('" + g.getVolumeName() + "','" + g.getModelName() + "','" + g.getYear() + "', " + g.getSasmodel() + ", " + g.getXxcelmodel() + ", " + g.getDiff() + ", " + g.getDiffper() + ", " + modelid + ")";
st.executeUpdate(sql);
System.out.println(g.getVolumeName() + "" + g.getYear() + "" + g.getModelName() + "" + g.getSasmodel() + "" + g.getXxcelmodel());
}
} catch (Exception e)
{
return Response.status(401)
.header("Access-Control-Allow-Origin", "*")
.header("Access-Control-Allow-Headers", "origin, content-type, accept, authorization")
.header("Access-Control-Allow-Credentials", "true")
.header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD")
.header("Access-Control-Max-Age", "1209600")
.entity("[{\"Success\":\"Error\"}]")
.build();
}
return Response.status(200)
.header("Access-Control-Allow-Origin", "*")
.header("Access-Control-Allow-Headers", "origin, content-type, accept, authorization")
.header("Access-Control-Allow-Credentials", "true")
.header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD")
.header("Access-Control-Max-Age", "1209600")
.entity("[{\"Success\":\"Yes\"}]")
.build();
}
问题是：-在java中使用apache poi读取第二张表时，它读取的是以前的数据而不是计算后的更新数据。即使Model.xlsx包含更新的数据java也只读取以前的数据。这很奇怪找到我的任何解决方案。
请帮助我。
谢谢。