In the process of software project development, the file upload function is one of the commonly used technologies. It is often necessary to refresh the current page for a better experience in the process of uploading files. In this way, asynchronous upload technology must be used. jQuery provides a variety of asynchronous upload methods. Method, let's discuss with you the function of uploading files using the jQuery.form plug-in. The specific implementation process is as follows:
Environmental requirements
| serial number | resource | illustrate |
| 1 | jQuery plugin | ajax communication basics |
| 2 | mysql database | Store province, city and county data |
| 3 | jdk1.8+ | development environment |
| 4 | tomcat8.5+ | operating environment |
| 5 | fastjson | json data encapsulation object |
project structure
Front-end page (ajaxform.jsp)
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "