java读取PDF显示于浏览器

package test; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.OutputStream; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class PDFServlet extends HttpServlet { /** * */ private static final long serialVersionUID = 1L; @Override protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("application/pdf"); FileInputStream in = new FileInputStream(new File("D:\\english.pdf")); OutputStream out = response.getOutputStream(); byte[] b = new byte[1024 * 8]; while ((in.read(b)) != -1) { out.write(b); } out.flush(); in.close(); out.close(); } }