jspsmart文件上传与邮件发送的实例

<form class="form-horizontal" id=“estform” action="/tools/toolservlet?type=est" method="post" enctype="multipart/form-data">
<div class="control-group">
<label class="control-label" for="email">email</label>
<div class="controls">
<input type="text" id="email" name="email" placeholder="email" onblur="checkemail()">
<span class="help-inline"></span>
</div>
</div>
<div class="control-group">
<label class="control-label" for="file">file</label>
<div class="controls">
<input type="file" name="file" id="file" onchange="getfileinfo()"/>
<span class="help-inline"></span>
</div>
</div>

<!-- 隐藏文件域 begin
<div class="control-group" id="hiddenfilediv" style="display: none;">
<label class="control-label" for="file">file</label>
<div class="controls">
<input type="file" name="file1" id="file1" />
<span class="help-inline"></span>
</div>
</div>-->
<!-- 隐藏文件域 end

<div class="control-group">
<label class="control-label" for="file">crossmatch</label>
<div class="controls">
<select name="crossmatch" id="crossmatch">
<option value="y">y</option>
<option value="n">n</option>
</select>
<span class="help-inline"></span>
</div>
</div>-->
<div class="control-group">
<div class="controls">
<!-- <a href="javascript:void(0);" id="upload" class="btn">submit</a>-->
<button type="submit" class="btn" id="upload">submit</button>
<button type="reset" class="btn" id="reset">reset</button>
</div>
</div>
</form>

/**
* 文件上传
* @param req
* @param resp
* @throws servletexception
* @throws ioexception
*/
protected void doupload(httpservletrequest req, httpservletresponse resp)
throws servletexception, ioexception {
boolean flag = true;
string email = "";
string dataid = string.valueof(new date().gettime());
//生成dataid目录
string newpath = estpath + "/" + dataid;
createdir(newpath);
//生成data目录
newpath = estpath + "/" + dataid + "/data";
createdir(newpath);
//生成data目录
newpath = estpath + "/" + dataid + "/result";
createdir(newpath);
try{
diskfileitemfactory factory = new diskfileitemfactory();
servletfileupload upload = new servletfileupload(factory);
upload.setheaderencoding("utf-8");
list<fileitem> list = upload.parserequest(req);
for(fileitem item : list){
if(!(item.isformfield())){
system.err.println("item name:" + item.getname());
if((item!=null)&&(item.getname()!=null)&&(!(item.getname().equals("")))){
string uploadfilename = item.getname();
//处理文件上传
inputstream in = item.getinputstream();
int len = 0;
byte[] b = new byte[1024];
newpath = estpath + "/" + dataid + "/data/";
fileoutputstream out = new fileoutputstream(newpath + uploadfilename);
while((len=in.read(b))>0){
out.write(b, 0, len);
}
in.close();
out.close();
item.delete(); //删除item对应的临时文件
}
}else{
string fvalue = item.getstring();
if(fvalue.indexof("@")!=-1){
//邮箱
email = fvalue;
system.err.println("email:" + email);
}
}
}
}catch (exception e) {
flag = false;
system.err.println("文件上传失败！" + e);
}
}
req.setattribute("flag", flag);
req.getrequestdispatcher("/view/est.jsp").forward(req, resp);
}

public class emailattachservice {
private static string host = "smtp.163.com";
private static string username = "";
private static string password = "";
private static string mailsubject = "";
public static vector vfile = new vector();
//添加附件
public static void addattachemnt(string fpath){
vfile.add(fpath);
}
//发送邮件
public static void sendmail(string emailto,string msg) {
// vfile 附件文件集合
try {
properties props = new properties();// 获取系统环境
authenticator auth = new emailauthenticator(username, password);// 进行邮件服务用户认证
props.put("mail.smtp.host", host);
props.put("mail.smtp.auth", "true");

session session = session.getdefaultinstance(props, auth);
// 设置session,和邮件服务器进行通讯
mimemessage message = new mimemessage(session);
// 设置邮件发送者的地址
message.setfrom(new internetaddress(username));
// 设置邮件接收的地址
message.addrecipient(message.recipienttype.to, new internetaddress(emailto));
// 设置邮件主题
message.setsubject(mailsubject);
// 构造multipart
multipart mp = new mimemultipart();
// 向multipart添加正文
mimebodypart content = new mimebodypart();
content.setcontent(msg, "text/html;charset=gb2312");
mp.addbodypart(content);
// 向multipart添加附件
enumeration efile = vfile.elements();
while(efile.hasmoreelements()){
mimebodypart fattach = new mimebodypart();
string fname = efile.nextelement().tostring();
filedatasource fds = new filedatasource(fname);
fattach.setdatahandler(new datahandler(fds));
fattach.setfilename(mimeutility.encodeword(fds.getname(), "gb2312",null));
mp.addbodypart(fattach);
}
vfile.removeallelements();
message.setcontent(mp);
// 设置邮件发送时期
message.setsentdate(new date());
message.savechanges();
//发送邮件
transport.send(message);
} catch (exception e) {
e.printstacktrace();
}
}