添加上传图片

两个JSP页面

JSP页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
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>File控件</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">
   
</head>

<body>
<form action="doupload.jsp" enctype="multipart/form-data" method="post">
        <p>姓名：<input type="text" name="user"></p>
        <p>选择图片：<input type="file" name="nfile"></p>
        <p><input type="submit" value="提交"></p>
</form>
</body>
</html>

JSP 页面！

<%@ page language="java" pageEncoding="UTF-8"%>
<%@page import="java.io.*,java.util.*"%>
<%@page import="org.apache.commons.fileupload.*"%>
<%@page import="org.apache.commons.fileupload.disk.DiskFileItemFactory" %>
<%@page import="org.apache.commons.fileupload.servlet.ServletFileUpload"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>上传处理页面</title>
</head>
<body>
<%
   request.setCharacterEncoding("utf-8");
   String uploadFileName = ""; //上传的文件名
   String fieldName = ""; //表单字段元素的name属性值
   //请求信息中的内容是否是multipart类型
   boolean isMultipart = ServletFileUpload.isMultipartContent(request);
   //上传文件的存储路径（服务器文件系统上的绝对文件路径）
   String uploadFilePath = request.getSession().getServletContext().getRealPath("upload/" );
   if (isMultipart) {
       FileItemFactory factory = new DiskFileItemFactory();
       ServletFileUpload upload = new ServletFileUpload(factory);
       try {
           //解析form表单中所有文件
           List<FileItem> items = upload.parseRequest(request);
           Iterator<FileItem> iter = items.iterator();

String owid = null;
String owname = null;
String owuser = null;
String owidCard = null;
String owpassword = null;
String owhouseNumber = null;   赋值
String owhouseType = null;
String owcheckData = null;
String nfile = null;
String owphone = null;
String owhouseNature = null;

           while (iter.hasNext()) { //依次处理每个文件
               FileItem item = iter.next();
               if (item.isFormField()){ //普通表单字段
                   fieldName = item.getFieldName(); //表单字段的name属性值

if(fieldName.equals("owid")){
     owid =  item.getString("UTF-8");
}else if(fieldName.equals("owname")){
    owname = item.getString("UTF-8");
}else if(fieldName.equals("owuser")){
    owuser = item.getString("UTF-8");
}else if(fieldName.equals("owidCard")){
    owidCard = item.getString("UTF-8");
}else if(fieldName.equals("owpassword")){    获取页面值
    owpassword = item.getString("UTF-8");
}else if(fieldName.equals("owhouseNumber")){
    owhouseNumber = item.getString("UTF-8");
}else if(fieldName.equals("owhouseType")){
    owhouseType = item.getString("UTF-8");
}else if(fieldName.equals("owcheckData")){
    owcheckData = item.getString("UTF-8");
}else if(fieldName.equals("owphone")){
    owphone = item.getString("UTF-8");
}else if(fieldName.equals("owhouseNature")){
    owhouseNature = item.getString("UTF-8");
}

                   if (fieldName.equals("user")){
                       //输出表单字段的值
                       out.print(item.getString("UTF-8")+"上传了文件。<br/>");
                   }
               }else{ //文件表单字段
                   String fileName = item.getName();
                   if (fileName != null && !fileName.equals("")) {
                       File fullFile = new File(item.getName());
                       File saveFile = new File(uploadFilePath, fullFile.getName());
                       item.write(saveFile);
                       uploadFileName = fullFile.getName();
                       out.print("上传成功后的文件名是："+uploadFileName);
                   }
               }
           }
       } catch (Exception e) {
           e.printStackTrace();
       }
   }
%>
</body>
</html>

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