如何在从 jasper 生成 pdf 时添加 OpenWith 和 SaveAs 对话框

Question

大家好！！！ 我生成了一个简单的参数化 jasper 报告，用于将数据导出为 pdf 格式。现在，根据我的代码，pdf 文件正在通过自动下载生成和打开，而我需要 Saveas 对话框来询问 openwith 或 saveas ...任何建议将不胜感激.. .Thanx提前..这是我的代码...

ServletOutputStream servletOutputStream = response.getOutputStream();
InputStream reportStream = getServletConfig().getServletContext().getResourceAsStream("para.jasper");
try {
    String name = request.getParameter("name");
    System.out.println(name);
    String query = "Select * from vikas where vikas.name='" + name + "'";
    System.out.println(query);
    Class.forName("com.mysql.jdbc.Driver");
    connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/techsoft?user=root&password=techsoft");
    statement = connection.createStatement();
    resultSet = statement.executeQuery(query);
    JRResultSetDataSource resultSetDataSource = new JRResultSetDataSource(resultSet);
    JasperRunManager.runReportToPdfStream(reportStream, servletOutputStream, new HashMap(), resultSetDataSource);
    resultSet.close();
    statement.close();
    connection.close();
    servletOutputStream.flush();
    servletOutputStream.close();

Answer 1

您应该添加Content-Disposition http header。同时添加Content-Type

response.setHeader("Content-Type", "application/pdf");
response.setHeader("Content-Disposition", "inline; filename=\"" + getFileName() + "\"");