Copyright: please indicate the source https://blog.csdn.net/EdwardDrew/article/details/51105575
JspSmartUpload Profile
jspSmartUpload is a fully functional file upload and download free component, adapted to perform uploading and downloading operations embedded JSP file.
Chinese garbage problem
Internet search many methods, but still garbled. Chinese garbled child is a whole day, and finally somehow, to write blog record [for the first time to write a blog, you may have many questions, but please forgive me! ].
At first, my database is MySQL, UTF-8 encoding. With MyEclipse development projects, but also with the UTF-8, modified many times coding format or not.
My solution is to jsp page encoding changed gb2312, just fine.
Here note a few:
1, first upload page and receive pages must be developed coding format GB2312;
<% @ Page Language = "the Java" Import = "* Classes in java.util." PageEncoding = "GB2312"%>
2, Note upload to specify the form is encoded as: the enctype = "multipart / form-Data"
. 3, designated note to upload form as: method = "post"
Code
Upload file upload.html:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>文件上传</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<script>
function ignoreSpaces(string) {
var temp = "";
string = '' + string;
splitstring = string.split(" ");
for (i = 0; i < splitstring.length; i++)
temp += splitstring[i];
return temp;
}
function isChinese(name) //中文值检测
{
if (name.length == 0)
return false;
for (i = 0; i < name.length; i++) {
if (name.charCodeAt(i) > 128)
return true;
}
return false;
}
//函数名：chkemail
//功能介绍：检查是否为Email Address
//参数说明：要检查的字符串
//返回值：0：不是 1：是
function chkemail(a) {
var i = a.length;
var temp = a.indexOf('@');
var tempd = a.indexOf('.');
if (temp > 1) {
if ((i - temp) > 3) {
if ((i - tempd) > 0) {
return 1;
}
}
}
return 0;
}
//函数名：fucCheckNUM
//功能介绍：检查是否为数字
//参数说明：要检查的数字
//返回值：1为是数字，0为不是数字
function fucCheckNUM(NUM) {
var i, j, strTemp;
strTemp = "0123456789";
if (NUM.length == 0)
return 0;
for (i = 0; i < NUM.length; i++) {
j = strTemp.indexOf(NUM.charAt(i));
if (j == -1) {
//说明有字符不是数字
return 0;
}
}
//说明是数字
return 1;
}
function yan() {
if (frm.name.value == "") {
alert("姓名不得为空！");//弹出提示框
document.frm.name.focus(); //获取鼠标焦点
return false;//返回一个值
}
else if (!isChinese(frm.name.value)) {
alert("姓名只能为中文！");//弹出提示框
document.frm.name.focus(); //获取鼠标焦点
return false;//返回一个值
}
else if (frm.xuehao.value == "") {
alert("学号不得为空！");//弹出提示框
document.frm.xuehao.focus(); //获取鼠标焦点
return (false);//返回一个值
}
else if (frm.xuehao.value.length > 10) {
alert("学号不能超过10个字符！");//弹出提示框
document.frm.xuehao.focus(); //获取鼠标焦点
return (false);//返回一个值
}
else if (frm.xuehao.value.match(/\D/) != null) {
alert("学号只能为数字！");//弹出提示框
document.frm.xuehao.focus(); //获取鼠标焦点
return (false);//返回一个值
}
else if (frm.xibie.value == "") {
alert("系别不得为空！");//弹出提示框
document.frm.xibie.focus(); //获取鼠标焦点
return (false);//返回一个值
}
else if (!isChinese(frm.xibie.value)) {
alert("系别只能为中文！");//弹出提示框
document.frm.xibie.focus(); //获取鼠标焦点
return false;//返回一个值
}
else if (frm.zhuanye.value == "") {
alert("专业不得为空！");//弹出提示框
document.frm.zhuanye.focus(); //获取鼠标焦点
return (false);//返回一个值
}
else if (frm.email.value == "") {
alert("EMAIL不得为空！");//弹出提示框
document.frm.email.focus(); //获取鼠标焦点
return (false);//返回一个值
}
else if (chkemail(frm.email.value) == 0) {
alert("EMAIL格式不对！");//弹出提示框
document.frm.email.focus(); //获取鼠标焦点
return (false);//返回一个值
}
else if (frm.chengji.value == "") {
alert("成绩不得为空！");//弹出提示框
document.frm.chengji.focus(); //获取鼠标焦点
return (false);//返回一个值
}
else if (fucCheckNUM(frm.chengji.value) == 0) {
alert("成绩只能是数字！");//弹出提示框
document.frm.chengji.focus(); //获取鼠标焦点
return (false);//返回一个值
}
}
</script>
<body bgcolor=cyan>
<p> </p>
<p align="center">欢迎使用鲜花上传系统</p>
<FORM name="frm" METHOD="POST" ACTION="do_upload.jsp"
ENCTYPE="multipart/form-data" onSubmit="return yan()">
<input type="hidden" name="TEST" value="good">
<table width="75%" border="1" align="center">
<tr bgcolor="#d8d8d8">
<td><div align="center">
上传文件选择1、 <input type="FILE" name="FILE1" size="30">
</div></td>
</tr>
<tr bgcolor="#e6e6e6">
<td><div align="center">
上传文件选择2、 <input type="FILE" name="FILE2" size="30">
</div></td>
</tr>
<tr bgcolor="#d8d8d8">
<td><div align="center">
上传文件选择3、 <input type="FILE" name="FILE3" size="30">
</div></td>
</tr>
<tr bgcolor="#e6e6e6">
<td><div align="center">
请输入您的姓名： <INPUT TYPE=TEXT
NAME="name" onblur="this.value=ignoreSpaces(this.value)"><br>
请输入您的学号： <INPUT TYPE=TEXT
NAME="xuehao" onblur="this.value=ignoreSpaces(this.value)"><br>
请输入您的系别： <INPUT TYPE=TEXT
NAME="xibie" onblur="this.value=ignoreSpaces(this.value)"><br>
请输入您的专业： <INPUT TYPE=TEXT
NAME="zhuanye" onblur="this.value=ignoreSpaces(this.value)"><br>
请输入您的EMAIL： <INPUT TYPE=TEXT
NAME="email" onblur="this.value=ignoreSpaces(this.value)"><br>
请输入您的成绩： <INPUT TYPE=TEXT
NAME="chengji" onblur="this.value=ignoreSpaces(this.value)"><br>
<br>
</div></td>
</tr>
<tr bgcolor="#d8d8d8">
<td><div align="center">
<input type="submit" name="Submit" value=" 提 交 ">
<input type=reset value="重设">
</div></td>
</tr>
</table>
</FORM>
</body>
</html>
Upload file processing do_upload.jsp:
<%@ page contentType="text/html; charset=gb2312" language="java"
import="com.jspsmart.upload.*" errorPage=""%>
<%@ page info="database handler"%>
<!--告诉编译器使用SQL包-->
<%@ page import="java.sql.*"%>
<html>
<head>
<title>文件上传处理页面</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
<jsp:useBean id="connect" scope="request" class="bean.StudentInfo" />
<%
// 新建一个SmartUpload对象
SmartUpload su = new SmartUpload();
// 上传初始化
su.initialize(pageContext);
// 设定上传限制
// 1.限制每个上传文件的最大长度。
//su.setMaxFileSize(10000);
// 2.限制总上传数据的长度。
//su.setTotalMaxFileSize(20000);
// 3.设定允许上传的文件（通过扩展名限制）,仅允许doc,txt,jpg文件。
su.setAllowedFilesList("doc,txt,jpg");
// 4.设定禁止上传的文件（通过扩展名限制）,禁止上传带有exe,bat,
//jsp,htm,html扩展名的文件和没有扩展名的文件。
su.setDeniedFilesList("exe,bat,jsp,htm,html,,");
try {
// 上传文件
su.upload();
// 将上传文件全部保存到指定目录
int count = su.save("D:/upload/");
out.println(count + "个文件上传成功！<br>");
// 利用Request对象获取参数之值
out.println("TEST=" + su.getRequest().getParameter("TEST")
+ "<BR><BR>");
// 逐一提取上传文件信息，同时可保存文件。
for (int i = 0; i < su.getFiles().getCount(); i++) {
com.jspsmart.upload.File file = su.getFiles().getFile(i);
// 若文件不存在则继续
if (file.isMissing())
continue;
// 显示当前文件信息
out.println("<TABLE BORDER=1>");
out.println("<TR><TD>表单项名（FieldName）</TD><TD>"
+ file.getFieldName() + "</TD></TR>");
out.println("<TR><TD>文件长度（Size）</TD><TD>" + file.getSize()
+ "</TD></TR>");
out.println("<TR><TD>文件名（FileName）</TD><TD>"
+ file.getFileName() + "</TD></TR>");
out.println("<TR><TD>文件扩展名（FileExt）</TD><TD>"
+ file.getFileExt() + "</TD></TR>");
out.println("<TR><TD>文件全名（FilePathName）</TD><TD>"
+ file.getFilePathName() + "</TD></TR>");
out.println("</TABLE><BR>");
// 将文件另存
file.saveAs("D:/upload/" + file.getFileName());
// 另存到以WEB应用程序的根目录为文件根目录的目录下
//file.saveAs("/upload/" + file.getFileName(), su.SAVE_VIRTUAL);
// 另存到操作系统的根目录为文件根目录的目录下
//file.saveAs("c:\temp\" + file.getFileName(), su.SAVE_PHYSICAL);
}
} catch (Exception e) {
out.println("<b>Wrong selection : </b>" + e.toString()
+ "<a href='javascript:history.back()'>返回</a>" + "<br>");
return;
}
String name = su.getRequest().getParameter("name");
String num = su.getRequest().getParameter("xuehao");
String department = su.getRequest().getParameter("xibie");
String subject = su.getRequest().getParameter("zhuanye");
String email = su.getRequest().getParameter("email");
String grade = su.getRequest().getParameter("chengji");
String sqlinsert = "insert into student_info(sno,sname,department,subject,email,grade) values(\'"
+ num
+ "\',\'"
+ name
+ "\',\'"
+ department
+ "\',\'"
+ subject + "\',\'" + email + "\',\'" + grade + "\')";
String sqlquery = "select * from student_info";
try {
connect.setInsert(sqlinsert);
connect.InsertResult();
out.println("<br>操作数据表，数据插入成功!" + "<br>");
out.println(sqlinsert + "<br>");
} catch (Exception err) {
err.printStackTrace();
} finally {
connect.setquery(sqlquery);
connect.getQueryResult();
ResultSet rs = connect.result;
out.println("<table border=1 width=600>");
while (rs.next()) {
String col1 = rs.getString("sno");
String col2 = rs.getString("sname");
String col3 = rs.getString("department");
String col4 = rs.getString("subject");
String col5 = rs.getString("email");
String col6 = rs.getString("grade");
//打印所显示的数据
out.println("<tr><td>" + col1 + "</td><td>" + col2
+ "</td><td>" + col3 + "</td><td>" + col4
+ "</td><td>" + col5 + "</td><td>" + col6
+ "</td></tr>");
}
out.println("</table>");
if (rs != null) {
rs.close();
}
}
%>
</body>
</html>
