packageservlet;importjava.io.File;importjava.io.IOException;importjava.io.PrintWriter;importjava.util.ArrayList;importjava.util.List;importjavax.servlet.ServletException;importjavax.servlet.http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse;importorg.apache.commons.fileupload.FileItem;importorg.apache.commons.fileupload.FileUploadException;importorg.apache.commons.fileupload.disk.DiskFileItemFactory;importorg.apache.commons.fileupload.servlet.ServletFileUpload;
public class UploadServlet extendsHttpServlet {
List piclist=new ArrayList(); //放上传的图片名
public voiddestroy() {super.destroy(); //Just puts "destroy" string in log//Put your code here
}public voiddoGet(HttpServletRequest request, HttpServletResponse response)throwsServletException, IOException {
String path=request.getRealPath("/heads");
DiskFileItemFactory factory=newDiskFileItemFactory();
ServletFileUpload sfu=newServletFileUpload(factory);
sfu.setHeaderEncoding("UTF-8"); //处理中文问题
sfu.setSizeMax(1024*1024); //限制文件大小
try{
List fileItems= sfu.parseRequest(request); //解码请求 得到所有表单元素
for(FileItem fi : fileItems) {//有可能是 文件，也可能是普通文字
if (fi.isFormField()) { //这个选项是 文字
System.out.println("表单值为："+fi.getString());
}else{//是文件
String fn=fi.getName();
System.out.println("文件名是："+fn); //文件名//fn 是可能是这样的 c:\abc\de\tt\fish.jpg
fi.write(newFile(path,fn));if (fn.endsWith(".jpg")) {
piclist.add(fn);//把图片放入集合
}
}
}
}catch(Exception e) {
e.printStackTrace();
}//去显示上传的文件
request.setAttribute("pics", piclist);
request.getRequestDispatcher("show").forward(request, response);
}public voiddoPost(HttpServletRequest request, HttpServletResponse response)throwsServletException, IOException {//fix 修改过
doGet(request, response);
}
public void init() throwsServletException {//Put your code here
}
}