Use the JXLS framework to generate PDF report implementation methods

Use the JXLS framework to generate PDF report implementation methods Overview: JXLS is a Java -based open source framework to generate electronic tables and reports.It provides integration of formats such as Excel and PDF and rich template functions.This article will introduce how to use the JXLS framework to generate PDF reports and provide relevant Java code examples. Implementation steps: 1. Add dependencies: First, the relevant dependencies of the JXLS framework need to be added to the construction file of the project.You can add the following dependencies through building tools such as Maven or Gradle: Maven dependencies: <dependency> <groupId>org.jxls</groupId> <artifactId>jxls</artifactId> <version>2.7.0</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.17</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.17</version> </dependency> <dependency> <groupId>com.lowagie</groupId> <artifactId>itext</artifactId> <version>2.1.7</version> </dependency> 2. Create a template: Use Excel electronic table software to create a template that contains the required table structure, style and data format.Template files can be saved as .xlsx or .xls formats. 3. Prepare data: Prepare data for filling templates.Data can exist in the form of Java objects, or can be obtained from the database or other data sources. 4. Filling template: Fill the data into the template through the API provided by the JXLS framework.You can use the following code example: try (InputStream is = new FileInputStream("path/to/template.xlsx")) { try (OutputStream os = new FileOutputStream("path/to/output.pdf")) { Context context = new PoiContext(); context.putvar ("data", datalist; // Put the data in Context Jxlshelper.getInstance (). ProcessSesstermplate (is, OS, Context); // Fill in data to the template and output it as PDF } } In the above code, the path of the template file needs to be specified to the `Path/To/Template.xlsx`, and the path of the output PDF file is specified as the` Path/to/output.pdf`.`DataList` is a list of Java objects containing data that needs to be filled in the template. 5. Generate PDF report: After the filling is complete, the code will automatically generate the PDF report file and save it in the specified path. Summarize: By using the JXLS framework, you can easily generate PDF reports.You only need to add dependency items, create templates, prepare data and fill templates according to the above steps, you can generate PDF reports with custom style and data.