public byte[] getReport(ServletContext sc, HttpServletRequest req) {
LOG.info("开始渲染报表");
long start = System.currentTimeMillis();
float total = (float) Runtime.getRuntime().totalMemory() / 1000000;
this.birtReportEngine = BirtReportEngine.getBirtEngine(sc);
IReportRunnable design;
try {
LOG.info("report path:" + reportPath);
reportPath = FileUtils.getAbsolutePath(reportPath);
LOG.info("report path:" + reportPath);
design = birtReportEngine.openReportDesign(reportPath);
IRunAndRenderTask task = birtReportEngine.createRunAndRenderTask(design);
task.getAppContext().put("BIRT_VIEWER_HTTPSERVLET_REQUEST", req);
task.setParameterValue("title", "用户图形报表");
task.setParameterValue("tip", "测试用户报表");
HTMLRenderOption options = new HTMLRenderOption();
options.setOutputFormat(HTMLRenderOption.OUTPUT_FORMAT_HTML);
ByteArrayOutputStream out = new ByteArrayOutputStream();
options.setOutputStream(out);
options.setImageHandler(new HTMLServerImageHandler());
options.setBaseImageURL(SystemListener.getContextPath() + "/platform/reports/images");
options.setImageDirectory(FileUtils.getAbsolutePath("/platform/reports/images"));
task.setRenderOption(options);
task.run();
task.close();
total = (float) Runtime.getRuntime().totalMemory() / 1000000 - total;
LOG.info(
"完成渲染报表，耗时："
+ ConvertUtils.getTimeDes(System.currentTimeMillis() - start)
+ " ,耗费内存："
+ total
+ "M");
return out.toByteArray();
} catch (EngineException | NumberFormatException e) {
LOG.error("输出报表出错", e);
}
return null;
}
public String getRuningTimeStr() {
return ConvertUtils.getTimeDes(runingTime);
}