民间,
我在Studio中创建了一个报告,该报告使用JSON File数据提供程序指向带有查询参数的GET RESTful端点。在Studio中,当传递参数时,报表工作正常。现在,我正在尝试从Java控制台应用程序中生成报告,但实际上并不知道如何运行它。如果我直接将JSON传递给它,它将很好地工作,但是如何获取它来调用REST端点?我是否需要在代码中调用端点,获取JSON,然后将其传递?我希望JasperReports库可以打电话。以下是项目的相关部分。希望有人能提供帮助。
报告定义文件
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd"
name="Inventory01" pageWidth="842" pageHeight="595" orientation="Landscape" columnWidth="802" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="df013db5-f76e-44d3-b0df-bcbc46d93160">
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="InventoryByProduct"/>
<queryString language="json">
<![CDATA[products]]>
</queryString>
<parameter name="storeno" class="java.lang.String" evaluationTime="Early">
<property name="net.sf.jasperreports.http.data.url.parameter" value="store"/>
</parameter>
<parameter name="locale" class="java.lang.String" evaluationTime="Early">
<property name="net.sf.jasperreports.http.data.url.parameter" value="locale"/>
</parameter>
<parameter name="product" class="java.lang.String" evaluationTime="Early">
<property name="net.sf.jasperreports.http.data.url.parameter" value="product"/>
</parameter>
Java代码
InputStream employeeReportStream = getClass().getResourceAsStream(reportFile);
jasperReport = JasperCompileManager.compileReport(employeeReportStream);
Map<String, Object> parameters = new HashMap<>();
parameters.put("locale", "en");
parameters.put("product", "680680976804");
parameters.put("storeno", "260");
//************ HOW SHOULD I CREATE THE JsonDataSource OBJECT AND PASS IT TO THE LIBRARY TO EXECUTE?
//************ IF ds WERE A JSON DOCUMENT, IT PRINTS CORRECTLY, BUT I NEED IT TO CALL THE URL OF THE
//************ RESTFUL ENDPOINT
// JsonDataSource ds = new JsonDataSource(jsonDataStream);
// JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, ds);
谢谢
所以我得到了它。对于遇到相同问题的用户,以下是解决方案。
将Json Adapter的定义放在项目内的目录中:project structure screenshot
在jrxml报告定义中:
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd"
name="Inventory01" pageWidth="842" pageHeight="595" orientation="Landscape" columnWidth="802" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="df013db5-f76e-44d3-b0df-bcbc46d93160">
<property name="net.sf.jasperreports.data.adapter" value="data/inventorydataadapter.xml"/>
然后输入您的Java代码:
InputStream employeeReportStream = getClass().getResourceAsStream(reportFile);
jasperReport = JasperCompileManager.compileReport(employeeReportStream);
Map<String, Object> parameters = new HashMap<>();
parameters.put("locale", "en");
parameters.put("product", "680680976804");
parameters.put("storeno", "260");
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters);
JRPdfExporter exporter = new JRPdfExporter();
exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(outputPdf));
SimplePdfReportConfiguration reportConfig = new SimplePdfReportConfiguration();
reportConfig.setSizePageToContent(true);
reportConfig.setForceLineBreakPolicy(false);
SimplePdfExporterConfiguration exportConfig = new SimplePdfExporterConfiguration();
exportConfig.setMetadataAuthor("Ali M");
exportConfig.setEncrypted(true);
exportConfig.setAllowedPermissionsHint("PRINTING");
exporter.setConfiguration(reportConfig);
exporter.setConfiguration(exportConfig);
exporter.exportReport();
就是这样!