问题描述

ireport，在java工程中预览PDF,被识别为文件下载

Class.forName(driver).newInstance();
Connection conn = DriverManager.getConnection(host,
user, pass);
Map parameters = new HashMap();
parameters.put("SUBREPORT_DIR", reportFilePath);
if (para != null && !para.equals("0")) {
parameters.put("Id", para);
}
if (organizationType != null && !organizationType.equals("")) {
parameters.put("organizationType", organizationType);
}
if (organizationName != null && !organizationName.equals("")) {
parameters.put("organizationName", organizationName);
}
if (!workerType.equals(""))
{
workerType= new String(workerType.getBytes("ISO8859_1"), "utf-8");
parameters.put("workerType", workerType);
}

    byte[] bytes = JasperRunManager.runReportToPdf(
            reportFile.getPath(), parameters, conn);

    response.setContentType("application/pdf");
    response.setContentLength(bytes.length);
    ServletOutputStream outputStream = response.getOutputStream();
    out.clear();
    out = pageContext.pushBody();
    outputStream.write(bytes, 0, bytes.length);
    outputStream.flush();
    outputStream .close();
    JasperPrint print = JasperFillManager.fillReport(
            reportFile.getPath(), parameters, conn);
    JasperPrintManager.printReport(print, true);
    conn.close();

这是生成PDF预览的代码， 在我自己机子上是正常预览PDF，而别人的机子是变成一个文件下载。。。是不是因为浏览器插件问题呢，还是代码有问题，，请大神指教