jsp上传图片问题
jsp上传图片怎么解决啊，就是上传后保存到一个文件加中，同时获取图片的路径，谢谢啦
[解决办法]
用SmartUpload处理的,供参考
<%--
文件名：do_upload.jsp
--%>
<%@ page contentType= "text/html; charset=gb2312 " language= "java "
import= "com.jspsmart.upload.*,java.sql.* "
errorPage= " "%>
<html>
<head>
<title> 文件上传处理页面 </title>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
</head>
<body>
<%
Connection con;
ResultSet rs;
Statement stmt;
//数据库登录用户和密码
String user= "sa ";
String password= "sa ";
Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver ");
String url= "jdbc:odbc:jspbook ";
con=DriverManager.getConnection(url,user,password);
//创建一个jdbc声明
stmt=con.createStatement();
SmartUpload su = new SmartUpload();
su.initialize(pageContext);
su.upload();
String title=su.getRequest().getParameter( "title ");
String Remark=su.getRequest().getParameter( "Remark ");
int count = su.save( "/upload ");
out.println(count+ "个文件上传成功！ <br> ");
//out.println( "TEST= "+su.getRequest().getParameter( "TEST ")+ " <BR> <BR> ");
System.out.println( "2 ");
for (int i=0;i <su.getFiles().getCount();i++)
{
System.out.println( "3 ");
com.jspsmart.upload.File file = su.getFiles().getFile(i);
if (file.isMissing()) continue;
String filename=file.getFileName();
int ifilelength=file.getSize();
String sfilelength=Integer.toString(ifilelength);
String filetype=file.getFileExt();
java.util.Date dt = new java.util.Date();
String suploadtime=String.valueOf(1900+dt.getYear())+ "- "+String.valueOf(1+dt.getMonth())
+ "- "+String.valueOf(dt.getDate());
stmt.executeUpdate( "insert into uploadfileinfo(filename,title, "
+ "filetype,fiellength,uploadtime,description) "
+ "values( ' "+filename+ " ', ' "+title+ " ', ' "+filetype+ " ', ' "
+sfilelength+ " ', ' "+suploadtime+ " ', ' "+Remark+ " ') ");
out.println( " <TABLE BORDER=1> ");
out.println( " <TR> <TD> 文件名: </TD> <TD> "+ filename + " </TD> </TR> ");
out.println( " <TR> <TD> 文件长度: </TD> <TD> " +sfilelength + " </TD> </TR> ");
out.println( " <TR> <TD> 文件类型： </TD> <TD> "+ filetype + " </TD> </TR> ");
//out.println( " <TR> <TD> 文件全名（FilePathName） </TD> <TD> "+ file.getFilePathName() + " </TD> </TR> ");
out.println( " </TABLE> <BR> ");
}
%>
</body>
</html>
[解决办法]
发过去了
<%@ page contentType= "text/html;charset=GBK " %>
<%@ page language= "java " import= "com.jspsmart.upload.* "%>
<%@ page import= "java.io.*,java.awt.Image,java.awt.image.*,com.sun.image.codec.jpeg.* " %>
<jsp:useBean id= "mySmartUpload " scope= "page " class= "com.jspsmart.upload.SmartUpload " />
<HTML>
<BODY BGCOLOR= "white ">
<%
//初始化文件名和上传结果
String FileName = "noImage ";
String result = "error ";
try
{
// 执行初始化操作
mySmartUpload.initialize(pageContext);
//限制文件上传格式
mySmartUpload.setAllowedFilesList( "jpg,gif,bmp,jpeg,JPG,BMP,GIF ");
// 上传文件到服务器
mySmartUpload.upload();
//如果有文件上传
if(mySmartUpload.getFiles().getCount()> 0)
{
// 取出文件
com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(0);
//
//如果文件存在
if(myFile.getSize()> 0)
{
String strExt = myFile.getFileExt();
java.util.Date d = new java.util.Date();
FileName = d.getTime()+ ". "+strExt;
myFile.saveAs( "../webblog/images/upload/articleImage/ " +FileName);
result= "success ";
//以下生成缩略图
String strRealPath = request.getRealPath( "/ ")+ "\\images\\upload\\articleImage\\ "+FileName; //原图路径
java.io.File file = new java.io.File(strRealPath); //读入刚才上传的文件
String newUrl=request.getRealPath( "/ ")+ "\\images\\upload\\articleImage\\small\\ "+FileName; //新的缩略图保存地址
Image src = javax.imageio.ImageIO.read(file); //构造Image对象
float tagsize=300;
int old_w=src.getWidth(null); //得到源图宽
int old_h=src.getHeight(null); //得到源图长
int tempsize;
float tempdouble = 1;
if(old_w > 300 || old_h> 300){
if(old_w> old_h){
tempdouble=old_w/tagsize;
}else{
tempdouble=old_h/tagsize;
}
}
int new_w =Math.round(old_w/tempdouble);
int new_h=Math.round(old_h/tempdouble);//计算新图长宽
BufferedImage tag = new BufferedImage(new_w,new_h,BufferedImage.TYPE_INT_RGB);
tag.getGraphics().drawImage(src,0,0,new_w,new_h,null); //绘制缩小后的图
FileOutputStream newimage=new FileOutputStream(newUrl); //输出到文件流
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(newimage);
encoder.encode(tag); //近JPEG编码
newimage.close();
}
else
{
System.out.println( "文件不存在！ ");
//result= "error ";
}
}
else
{
System.out.println( "没上传！ ");
//result= "error ";
}
}
catch(Exception ex)
{
System.out.println(ex);
//result= "error ";
}
finally
{
//存储表单信息
String Atitle = mySmartUpload.getRequest().getParameter( "Atitle ");
String Acontent = mySmartUpload.getRequest().getParameter( "Acontent ");
String Atype = mySmartUpload.getRequest().getParameter( "Atype ");
String Astate = mySmartUpload.getRequest().getParameter( "Astate ");
request.setAttribute( "Atitle ",Atitle);
request.setAttribute( "Acontent ",Acontent);
request.setAttribute( "Atype ",Atype);
request.setAttribute( "Astate ",Astate);
request.setAttribute( "FileName ",FileName);
request.setAttribute( "Result ",result);
}
%>
<jsp:forward page= "../insertarticlesrv "/>
</BODY>
</HTML>
