<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP ‘showImg.jsp‘ starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <table> <tr> <td>111</td> <td><img src=\‘#\‘" /showimg.do?id=1" width="200px" height="180px" ></td> </tr> </table> </body> </html>
@RequestMapping(value = "/uploadimage.do")
public void uploadPhoto(@RequestParam(value = "file", required = false) MultipartFile file, HttpServletRequest request,HttpServletResponse response) throws Exception {
try{
byte[] data = file.getBytes();
int id = uploadDao.FileUpload(data, file.getOriginalFilename());
}
catch(Exception e){
e.printStackTrace();
}
}
@RequestMapping(value = "/showimg.do")
public void showimg(HttpServletRequest request,HttpServletResponse response) throws Exception {
int id = Integer.parseInt(request.getParameter("id"));
System.out.println(id);
List<Object> list = uploadDao.ShowImg(id);
Blob blob=(Blob) list.get(0);
int length = (int) blob.length();
byte[] bImage = new byte[length];
InputStream is = new BufferedInputStream(blob.getBinaryStream());
is.read(bImage, 0, length);
OutputStream out = response.getOutputStream();
out.write(bImage);
out.flush();
out.close();
is.close();
}
public List<Object> ShowImg(int id) {
String sql = "select name,img from img where id = "+id+"";
List<Object> list=new ArrayList<Object>();
Connection conn=null;
Statement state=null;
ResultSet rs = null;
try {
conn = jdbcTemplate.getDataSource().getConnection();
state=conn.createStatement();
rs=state.executeQuery(sql.toString());
if (rs.next()) {
Blob blob = rs.getBlob("img");
list.add(0, blob);
}
} catch (SQLException e) {
e.printStackTrace();
}
return list;
}
时间： 2024-10-22 05:44:27