Question

我有一个Microsoft Excel工作表，其中包含以下形式的一些数据： String - String - Integer我希望能够选择一个项目，然后以PDF格式打印其信息：

姓名：String 日期：String ID：int

有可能吗？如果有，怎么样？如果不是，是否有一些允许我这样做的java库？

Answer 1

好的，我想给你一个小例子，它可以在XLS文档上找到字符串值：

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;

/**
 *
 * @author Patrick Ott <Patrick.Ott@professional-webworkx.de>
 * @version 1.0
 */
public class App {

    public static final String USER_HOME = System.getProperty("user.home");

    public static final void main(String[] args) {

        FileInputStream fis = null;
        try {
            // change the path, where your xls file is located
            fis = new FileInputStream(new File(USER_HOME + "/test/workbook.xls"));
            // create a new Workbook
            HSSFWorkbook workbook = new HSSFWorkbook(fis);
            // get the first Sheet, if you have more, then 1 or 2 or ....
            HSSFSheet sheet = workbook.getSheetAt(0);
            int lastRowNum = sheet.getLastRowNum();
            // go through all rows
            for (int i = 0; i < lastRowNum; i++) {
                if (sheet.getRow(i) != null) {
                    HSSFRow row = sheet.getRow(i);
                    // get the last cell of the current row
                    short lastCellNum = row.getLastCellNum();
                    for(int j = 0; j < lastCellNum; j++) {
                         // if the current column is != null and contains a String and 
                         // equals("Espresso") (i added this for test in my example) then
                         // print "Found", here you can start to create the PDF
                        if(row.getCell(j) != null && row.getCell(j).getCellType() == Cell.CELL_TYPE_STRING && row.getCell(j).getStringCellValue().equalsIgnoreCase("Espresso")) {
                            System.out.println("Found");
                        }
                    }
                }
            }

        } catch (FileNotFoundException ex) {
            Logger.getLogger(App.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(App.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

如果您想使用Maven，那么这里是pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>de.professional_webworkx.apachepoi</groupId>
    <artifactId>ApachePOIDemo</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.10-FINAL</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>3.10-FINAL</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-contrib</artifactId>
            <version>3.5-FINAL</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-excelant</artifactId>
            <version>3.10-FINAL</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-scratchpad</artifactId>
            <version>3.10-FINAL</version>
        </dependency>

        <dependency>
    <groupId>commons-logging</groupId>
    <artifactId>commons-logging</artifactId>
    <version>1.1.3</version>
</dependency>

     <dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
         <version>4.11</version>
     </dependency>

    </dependencies>
</project>

否则，您必须手动将Apache POI Jar添加到您的项目中。

使用Java创建PDF文件时，您可以查看iText或PDFBox两个库还有Maven依赖项，您可以将其添加到pom.xml。

我希望这可以帮助您从自己的应用开始，如果您遇到特殊问题，请再次询问，但请确保问题不会得到解答。

帕特里克

在excel表中搜索元素并打印以pdf文件组织的信息

1 个答案: