First, the definition of POIThere are two main toolkits for working with Excel in Java: JXL and POI. JXL can only manipulate Excel 95, 97, or 2000, which is the suffix of. xls. The POI can operate in Excel 95 and later versions of Excel with the suffix. xls and. xlsx two formats.The POI full name Poor obfuscation implementation, literally "poor fuzzy implementati
The Apache POI is an open source library of the Apache Software Foundation, and POI provides the ability for the API to read and write to Microsoft Office format files in Java programs.
1. Read the jar packs that Word 2003 and Word 2007 need
A Word file that reads Version 2003 (. doc) is relatively simple, requiring only Poi-3.5-beta6-20090622.jar and
Recently done a few very interesting features, girlfriend companies need to collect information on the Beijing Internet, the first reaction is the crawler, but not very good, so think of the conversion to the JSON format with a regular resolution to Excel. The right thing to do is to make the data in the database into the export and send the mail of the timed task, so here is a detailed study of the operation of some of the Excel content.
Now the mainstream operation of Excel file open source to
Purpose: Crawl all secondary data in the Kunming range, including name, coordinates.First into the basic, this article mainly on the principle, and the realization of step decomposition, for the Python code to lay the groundwork for writing.Since it is the foundation of the 0, it will be more detailed.As the realization of the purpose, crawling all the data of Kunming City, is to obtain the Baidu map on the Kunming range of all key words with secondary school Geographic information data (points
Apache POI Denial of Service Vulnerability (CVE-2014-3574)
Released on: 2014-09-03Updated on:
Affected Systems:Apache Group POI 3.11.xApache Group POI 3.10.xDescription:Bugtraq id: 69648CVE (CAN) ID: CVE-2014-3574
Apache POI is an open-source cross-platform Java API written in Java. It can read and write Microsoft O
JAVAEE--BOS logistics project 05: OCUpload, POI, pinyin4J, refactoring paging code, partition addition, combobox, javaeeocupload1Learning plan
1. Implement the regional import function
N OCUpload one-Click Upload plug-in
N upload files to Action
Introduction to n POI
N use POI to parse Excel files
N complete database operations
N use pinyin4J to generate short co
For Microsoft Excel 97-2003 worksheet (.xls)
If (31 = cell. getcellstyle (). getfillforegroundcolor () // determines whether the foreground color of a cell is pale blue. If (10 = book. getfontat (cell. getcellstyle (). getfontindex ()). getcolor () // determines whether the cell font color is red.For Microsoft Excel worksheet (.xlsx)
If (0 = cell. getcellstyle (). getfillforegroundcolor () // determines whether the foreground color of a cell is pale blue. If (0 = book. getfontat (cell. getcellst
After using poi to import an Excel template with a formula, it is found that the value calculated from the original formula cell cannot be displayed normally. You need to refresh the formula before obtaining the calculation result.
To solve this problem, I wrote a Test Code as follows:
Package CN. fory. formula;
Import java. Io. fileinputstream;Import java. Io. filenotfoundexception;Import java. Io. fileoutputstream;Import java. Io. ioexception;
Impor
For a programmer, file operations are frequently encountered, especially for Excel files.
Here is a brief introduction to the tool I used in my project,--poi, for Excel. About the concept of poi, a lot of online, detailed information you can own Baidu, I only do a brief introduction here. POI is an Apache class library that provides Java developers with support
First, go to the poi official website http://poi.apache.org/to download the latest version of the poi package. The latest version is 3.9.
Excel requires the following JAR packages:
Then, import the jar package in the Java project.
The Code is as follows:
Import Java. io. fileinputstream; import Java. io. filenotfoundexception; import Java. io. ioexception; import Java. io. inputstream; import Java. util
ArticleDirectory
Purpose
Components to date
Purpose
The poi project consists of APIS for manipulating various file formats based upon Microsoft's Ole 2 compound document format using pure Java. in short, you can read and write MS Excel files using Java. soon, you'll be able to read and write Word files using Java. poi is your Java Excel solution as well as your Java word solution. however,
Apache POI is a free open source cross-platform Java Api,apache poi written in Java that provides the Java program with the ability to read and write to Microsoft Office format archives. The POI is an acronym for "Poor Obfuscation implementation", meaning "poor fuzzy implementation."Apache POI is a Java API that create
Many times, a software application needs to generate a report in Microsoft Excel file format. Sometimes, an application might even want to use an Excel file as input data. For example, an application developed by a company will need all the output from the Finance department to generate its own Excel.Any Java programmer willing to use the output of MS Office files can be done using pre-defined and read-only APIs.What is Apache POI?Apache
Java uses poi to import data in the database to Excel
Effect:
Import the poi package to the path of the project before use. Note that you only need to import the poi package. After downloading the package, there are three jar packages.
Core code:
Connect to the database: DBConnection. java
Copy codeThe Code is as follows: package org. xg. db;
Import java. SQL. C
Office software has always been a mixed blessing software, the vast majority of ordinary computer users with Office to meet day-to-day office needs, so produced a lot of production data and documents, and enterprise units of the dedicated Office system docking, and office parsing work has been a very headache programmers, Often incur the abuse of programmers, but also known as one of Microsoft's worst inventions. Poi's birth solved the Excel parsing problem (
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.