poi parts

First of all to talk about what happened today, in the spirit of an Android heart I was assigned to the PB group, Cao Ying Han Ah! Well, what we're going to record and share today is that Java uses POI import to export data from Excel. Below the POI package of http://poi.apache.org/download.html, interested friends can also go to see the API. Let's share the two points that you should be aware of when doing

// There Is A Word Document Table // such as: // name $ {name} // call $ {Tel} // Replace the preceding variable import Java when reading records from the database. io. fileoutputstream; import Java. util. hashmap; import Java. util. iterator; import Java. util. list; import Java. util. map; import Java. util. map. entry; import Org. apache. poi. poixmldocument; import Org. apache. poi. xwpf. usermodel. xwp

MAVEN-built Project-->pom.xml file Eclipse provides dependencies to directly add dependent jar packages: Search for POI and poi-ooxml directly, and MAVEN will automatically rely on the jar package you need: POI provides support for older versions of Microsoft Office, eg. xls Excel Poi-ooxml

POI Excel and poiexcel I. POI Overview Apache POI is an open-source library of the Apache Software Foundation. POI provides APIs for Java programs to read and write Microsoft Office files.Structure: HSSF-provides the ability to read and write Microsoft Excel files. XSSF-provides the ability to read and writ

Use poi to read and write Excel For a programmer, file operations are common, especially for Excel files. Here I will introduce a POI tool used in the project to Operate Excel. There are many concepts about POI on the Internet. For more information, you can use Baidu. Here I will just give a brief introduction. POI is

first, let's focus on the two different formats of Excel, which directly affect how we use the POI to manipulate Excel. Be sure to first clear the version of Excel you want to work with, remember! 1,excel the two formats differ by a), the *.xls file is a spreadsheet saved using Microsoft Excel 2003 or a previous version, using a storage format of Biff (Binary Interchange file format), A special binary format file. b) The *.xlsx file is a spreadsheet s

The jar packages that need to be used are as follows:If you are a MAVEN managed project, add the following dependencies:Https://mvnrepository.com/artifact/org.apache.poi/poi - Dependency> groupId>Org.apache.poigroupId> Artifactid>PoiArtifactid> version>3.14version> Dependency> Https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml - Dependency> groupId>Org.apache.poigroupId>

The Code is as follows: Copy code /** Use POI to read EXCEL files*/Import java. io. File;Import java. io. FileInputStream;Import java. util. ArrayList;Import org. apache. poi. hssf. usermodel. HSSFCell;Import org. apache. poi. hssf. usermodel. HSSFRow;Import org. apache. poi. hssf. usermodel. HSSFSheet;Im

Java poi import excel and poiexcel Recently, the project needs to be imported into excel. There are many examples on the Internet. The integration records are compatible with 2003 and 2007, and the image processing function is not added yet. Jar package http://pan.baidu.com/s/1sjPuWDR required Package example. poi; import java. io. *; import java. text. decimalFormat; import org. apache.

For Java access to Excel files, commonly used components have JXL and poi, JXL because there is no version update, and only access to EXCEL2007 previous file format, the xlsx file format is not currently supported, it is recommended to use POI,The official POI is: http://poi.apache.org/In essence, the EXCEL2007 document is an XML document, so there are two ways t

Recently in the use of poi to write large amounts of data in Excel, found that excel2003 up to 65,535, a large number of data easily caused by oom, the internet looked up the API, found that for 2003, each sheet up to 65,535, if the amount of data is far more than 65535, It is recommended to sheet processing, and after poi3.8, there is sxssfworkbook, can support the large data volume write Excel operation, but currently only support excel2007HSSF is a

The Apache POI is an open source library of the Apache Software Foundation to help Java programs read and write to Microsoft Office format files. POI provides the following types for parsing Microsoft Office format files: HSSF-provides the ability to read and write Microsoft Excel xls format files. XSSF-provides the ability to read and write Microsoft Excel OOXML xlsx format files. HWPF-provides the abil

Just started using new Hssfworkbook (Excelfile) to read workbook, no problem with the previous version of Excel2003 (including 2003), FileInputStream However, the following exception occurred while reading Excel2007:Org.apache.poi.poifs.filesystem.OfficeXmlFileException:The supplied data appears to being in the Office 2007+ XML. You are calling the "part of POI" deals with OLE2 Office Documents. You are need to call a different part of the

Process: (similar to JXL, just reading logic a little different) The two main differences with JXL: 1, read and write a slightly different way: (1) POI read: [Java] view plain copy print? (2) JXL read: [Java] view plain copy print? 2. The data types are judged in a slightly different way: (1) Personally feel that the data type processing, poi than JXL convenient and practical,

Read the following two forms of Excel: *.xls and *.xlsxUsing the Apache POI API, you need to use the HSSF and XSSF class librariesHSSF is the POI Project's pure Java implementation of the "Excel" ( -2007) (. xls) file format.XSSF is the POI Project's pure Java implementation of the Excel OOXML (. xlsx) file format.These 4 JARs is needed to read Excel:Add the four

HSSF is a pure Java implementation of POI Engineering for Excel 97 (-2007) file operationsXSSF is a pure Java implementation of the POI Project for Excel OOXML (. xlsx) file operationsThere is a Hssfpatriarch object in the POI, which is the top-level manager for Paint, and its createpicture (anchor, Pictureindex) method enables you to insert a picture in Excel.St

The JAVAWeb SSH framework exports EXCEL using POI, And the pop-up save box appears, javawebpoi To import a package, simply paste the key code. JSP just needs to click an Action Link. Poi pack I use: poi-3.11-20141221.jar Valid for test: Effect: Action Code: Private InputStream inputStream; // (get, set Method omitted) defines an input stream, used to catch th

, then there are totals do not say, with the total can be directly set up the formula, can also be calculated directly after the program, the latter is generally used to compare complex reports, you do not have to set the location of the merge in the POI, reduce In conjunction with this example, we calculate the average age and the sum of the scores. As follows:1 //Data Analysis Lines2 intDadarownum =Sheet.getlastrownum (); 3Xssfrow TotalRow =

Using POI databases for Excel and poiexcel in Java DevelopmentFirst of all, we should focus on the two different Excel formats, which directly affects the way we operate Excel using POI. Make sure that you know the version of the Excel file you want to use. Remember!1. Differences between two Excel formats ),*. xls files are workbooks saved in Microsoft Excel 2003 or earlier versions. They are stored in the

To implement the POI export Excel shape as--A1 (LV1)----B1 (LV2)----B2 (LV2)------C1 (LV3)------C2 (LV3)----B3 (LV2)--A1 (LV1)I. Data fields that can be usedID (primary key), PID (parent account ID), name (name), level (current hierarchy)Two. Ideas:Define an empty list of accounts to hold an already sequenced account. Create an iterator to the parent node to isolate all of its child nodes, traverse the child nodes into the list of accounts, and call t