如何使用jsp或javascript在服务器上的浏览器中显示pdf

可以通过不同的方式进行操作，如果您正在使用servlet，则可以将正确的MIME类型写入响应中，并将PDF写入servlet流中

就像是：

protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    response.setContentType("application/pdf;charset=UTF-8");

    response.addHeader("Content-Disposition", "inline; filename=" + "cities.pdf");
    ServletOutputStream out = response.getOutputStream();

    InputStream inputStream = null;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try {

        inputStream = new FileInputStream("sourcePath_of_pdf.pdf");

        byte[] buffer = new byte[1024];
        baos = new ByteArrayOutputStream();

        int bytesRead;
        while ((bytesRead = inputStream.read(buffer)) != -1) {
            baos.write(buffer, 0, bytesRead);
        }

    } catch (FileNotFoundException e) {
            e.printStackTrace();
    }

    baos.writeTo(out);
}