微信小程序系统开发一套多少钱？

servlet代码:
import java.io.ioexception;

import java.io.printwriter;
import javax.servlet.servletconfig;
import javax.servlet.servletexception;
import javax.servlet.http.httpservlet;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
import com.jspsmart.upload.file;
import com.jspsmart.upload.files;
import com.jspsmart.upload.smartupload;
import com.jspsmart.upload.smartuploadexception;

public class fileupload extends httpservlet {

 //定义一个servletconfig对象
 private servletconfig sc;

 /**
 * constructor of the object.
 */
 public fileupload() {
  super();
 }

 /**
 * destruction of the servlet. 

 */
 public void destroy() {
  super.destroy(); // just puts "destroy" string in log
  // put your code here
 }
 public void doget(httpservletrequest request, httpservletresponse response)
   throws servletexception, ioexception {

  response.setcontenttype("text/html");
  printwriter out = response.getwriter();
  out.flush();
  out.close();
 }

public void dopost(httpservletrequest request, httpservletresponse response)
   throws servletexception, ioexception {
  try {
   response.setcontenttype("text/html;charset=utf8");
   printwriter out = response.getwriter();

    //新建一个smartupload对象，接收用户上传文件
   smartupload su = new smartupload();
   su.initialize(sc, request, response);
   su.upload();
   files fs = su.getfiles();
   file frist = fs.getfile(0);
   string filename = frist.getfilename();
   string sctm = system.currenttimemillis()+"";
    //获得文件的扩展名
   string ext = frist.getfileext();
    //把文件保存到服务器硬盘(以系统毫秒数命名)
   frist.saveas("/"+sctm+"."+ext);
   string username = su.getrequest().getparameter("username");
   system.out.println(username);

   out.flush();
   out.close();
  } catch (smartuploadexception e) {
   // todo auto-generated catch block
   e.printstacktrace();
  }

 }

 public void init(servletconfig sc) throws servletexception {
  // put your code here
  this.sc = sc;
 }
}
jsp代码:

    

      
 
 
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