報告下載不提示用戶保存

我試圖用按鈕單擊時使用JasperReport生成一個簡單的PDF報告。下面是相關的代碼：報告下載不提示用戶保存

report.xhtml：

<p:commandButton value="#{msg['report.generate']}" action="#{generateReportBean.generateReport}" />

GenerateReportBean.java：

public void generateReport() throws JRException, IOException { 
    FacesContext facesContext = FacesContext.getCurrentInstance(); 
    ExternalContext externalContext = facesContext.getExternalContext(); 
    HttpServletResponse response = (HttpServletResponse) externalContext 
      .getResponse(); 

    InputStream reportStream = facesContext.getExternalContext().getResourceAsStream("/WEB-INF/reports/report.jrxml"); 
    JasperDesign jasperDesign = JRXmlLoader.load(reportStream); 
    JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign); 
    byte[] report = JasperRunManager.runReportToPdf(jasperReport, new HashMap(), new JREmptyDataSource()); 

    response.setContentType("application/pdf"); 
    response.setContentLength(report.length); 
    response.setHeader("Content-disposition", "attachment; filename=report.pdf"); 

    ServletOutputStream servletOutputStream = response.getOutputStream(); 
    servletOutputStream.write(report); 
    servletOutputStream.flush(); 
    servletOutputStream.close(); 
    facesContext.responseComplete(); 

}

的問題是，當我使用Firebug我可以看到一個響應（對我來說這好的）：

X-Powered-By JSF/2.0 
Content-Type application/pdf 
Content-Length 1310 
Content-Disposition attachment; filename=report.pdf 
Server Jetty(7.4.0.v20110414)

但是我沒有看到彈出窗口請求我保存pdf。正如你所看到的，我正在開發Jetty 7.4 maven插件。我在這裏做錯了什麼？

來源

2011-05-21 Mateusz Dymczyk

添加Ajax = 「假」到你的commandButton

<p:commandButton ajax="false" value="#{msg['report.generate']}" action="#{generateReportBean.generateReport}" />

來源

2012-11-21 09:00:45 Pinchy

報告下載不提示用戶保存

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