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
This blog is mainly about Java in the POI read Excel, and Excel version includes: 2003-2007 and 20,102 versions, that is, Excel suffix named: xls and xlsx.Read Excel and MySQL Related: Java POI Technology read Excel data to MySQLYou can also read and import excel in: Java's POI technology to learn how to write Excel informationImporting Excel using JXL technology
The previous version of POI does not support big data processing, and if too much data is often reported to oom errors, sometimes resizing the JVM is not a good result. 3.8 version of the POI new out Sxssfworkbook, can support the operation of large data volume, but only sxssfworkbook support. xlsx format, not supported in. xls format. 3.8 version of the POI expo
This chapter will guide you through the process of setting up Apache POI on Windows and Linux system-based settings. Apache poi can be easily installed and integrated, without any complicated setup process, through a few simple steps, the current Java environment, user management is required to install.System Requirements
Jdk
Java SE 2 JDK 1.5 or higher
Memory
1 GB R
. xls files support only 6w+ of data writes. xlsx files only support write-104w+ dataIn Java, the Jxl tool class can only manipulate. xls files and cannot manipulate the. xlsx fileThe POI tool class can support. xlsx file operations.Excel data reading and writing are correspondingly simple, there are a lot of code on the net, I would like to say here is how to write 100w+ data into Excel.In the POI, Xssfwor
1. http://poi.apache.org/download required jar get Poi-bin-3.9-20121203.zip decompression
2. Import the required Jar:poi-ooxml-3.9-20121203.jar,poi-scratchpad-3.9-20121203.jar, Xmlbeans-2.3.0.jar,
Dom4j-1.6.1.jar,poi-3.9-20121203.jar,poi-ooxml-schemas-3.9-20121203.jar
3.http://wenku.baidu.com/view/b357ccac6bec0975f46
At present, many Web sites provide a POI download interface, but generally need key to implement. However, each key (which is normally requested by the individual) has a daily quota of 1000, which is a drop in the bucket for the need to get a lot of poi data.
In view of the recent want to analyze the POI data, so the crawler is also more interested in
worksheet one is 0//Its statement is: hssfsheet sheet = workbook.getsheetat (0);Hssfsheet sheet = wookbook.getsheet ("Sheet1"); //gets the number of rows in the Excel file introws =sheet.getphysicalnumberofrows (); //traversing rows, the index starts at 0, and line No. 0 can be used as a table header, not fetched. for(inti = 1; i ) { //read upper left cellHssfrow row =Sheet.getrow (i); //line is not empty if(Row! =NULL) {
The framework management system made by spring4.1.3+springmvc+mybatis1.2.3+ehcache+shiro+poi+easyui1.4.1Don't say anything, like this sentence: there is a picture of the truthCurrently this is 3 weeks to do, the project or continue to do, daily updates, the project has any bugs or suggestions can be proposed.Welcome to communicate with each other: 174481989Project SVN address: svn://linux.dounine.com Project Demo Address: http://dounine.com Standby: h
Excel book protection is very common, mainly do not want to let others modify Excel when used. This avoids malicious modification of data and increases the credibility of the data.Here is a Java POI for setting book Protection:You can use the Protectsheet (password) method of the Hssfsheet class. The specific code is as follows: PackageCom.util;ImportJava.io.FileOutputStream;ImportOrg.apache.poi.hssf.usermodel.HSSFCell;ImportOrg.apache.poi.hssf.usermo
The Excel data is imported into the database because it is used in the project. Share it here.The POI method used here supports two formats (XLS,XLSX)Package Com.entity;import Java.io.file;import Java.io.fileinputstream;import java.io.ioexception;import Java.io.inputstream;import Java.util.arraylist;import Java.util.hashmap;import Java.util.Iterator;import Java.util.list;import Java.util.map;import Org.apache.poi.hssf.usermodel.hssfcell;import Org.apa
The purpose of the project is to query the nearest distance to some poi near a point, such as the distance to the nearest shopping mall near Tiananmen Square (time)1. Baidu Map APIThe program used to Baidu map of the two APIs, respectively, is(1) Route Planning Service (aka Direction API): Http://lbsyun.baidu.com/index.php?title=webapi/direction-api-v2(2) Location Search service (aka Place API): Http://lbsyun.baidu.com/index.php?title=webapi/guide/web
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