Question

我有report1.jrxml，它有简单的SQL查询，没有参数，在iReport中运行正常。我想通过ADF打开这份报告。我的reportAction方法如下：

public void reportAction(FacesContext ctx,OutputStream output) throws FileNotFoundException,NamingException,
                                     SQLException, IOException, JRException,
                                     ClassNotFoundException,
                                     InstantiationException,
                                     IllegalAccessException {
    File input = null;
    Connection conn = null;
    Map reportParameters = new HashMap();
    bindings = this.getBindings();
    ctx = FacesContext.getCurrentInstance();
    HttpServletResponse response = (HttpServletResponse)ctx.getExternalContext().getResponse();
    String reportPath = ctx.getExternalContext().getInitParameter("reportpath");
    input = new File(reportPath+"report1.jasper");
    if(bindings!=null){


            OperationBinding ob = bindings.getOperationBinding("getCurrentConnection");
            ob.execute();
            conn = (Connection)ob.getResult();

    if(input.getPath()!=null&&reportParameters!=null&&conn!=null){
        JasperPrint print = JasperFillManager.fillReport(input.getPath(),reportParameters,conn);
        response.addHeader("Content-disposition", "attachment;filename=report1.pdf");
        output = response.getOutputStream();
        String userName = "ilpa";
        File outPutPDF = new File("D:/jdev libs/reports/report1.pdf");
        JasperExportManager.exportReportToPdfStream(print, output);
        JasperExportManager.exportReportToPdfFile(print,outPutPDF.getPath());
        JasperExportManager.exportReportToPdfStream(print, output);
        output.flush();
        output.close();
    }        
}
else{
    ctx.addMessage(null,new FacesMessage("No bindings configured for this page"));
}
}

可能出现什么问题？

Answer 1

我自己解决了这个问题。

根本原因是我在web.xml中给出了错误的路径。

也就是说，我在两个位置都有report1.jrxml。我使用的实际报告位于不同的位置。

报告在ADF中打开空白

1 个答案: