JasperReportsの高速化対応

Sample.java

String sourcePath = "./Report/sample.jrxml";
String binaryPath = "./Report/bin/sample.jasper" ;

File source = new File(sourcePath);
File binary = new File(binaryPath);

if (!binary.exists() || source.lastModified() > binary.lastModified()) {
	JasperCompileManager.compileReportToFile(source.getAbsolutePath(),
                                                 binary.getAbsolutePath());
}

jasperPrint = JasperFillManager.fillReport(binary.getAbsolutePath(), 
                                           paramMap, 
                                           reportDataSource);