目录
2.1 在application.properties中添加类的说明
完整项目在这里实时更新<( ̄︶ ̄)↗[GO!]:https://github.com/GoodbyeFirefly/ExpressManagementSystem
1,修改登录页面login.html
将登录按钮的类型改为button(原先是submit),这样可以通过ajax在前端拿到登录时的用户名和密码
引入jQuery和layer(注意引入的顺序)
编写脚本,取得用户名和密码
<script src="assets/layui.js"></script>
<script src="js/index.js" data-main="login"></script>
<script src="js/login.js" data-main="login"></script>
<script src="../js/jquery2.1.4.js"></script>
<script src="../layer/layer.js"></script>
<script>
$(function () {
$(".login-button").click(function () {
var username = $("#username").val();
var passowrd = $("#password").val();
// 1, 先使用layer弹出load(提示加载中)
var windowId = layer.load();
// 2, ajax与服务器交互
$.post("login.do", {username:username, password:passowrd}, function(data) {
// 3, 关闭load窗口
layer.close(windowId);
// 4, 将服务器回复的结果进行显示
layer.msg(data.result);
if(data.status == 0) {
location.assign("index.html");
}
}, "JSON");
});
});
</script>
2,编写adminController
2.1 在application.properties中添加类的说明
2.2 编写controller
package com.xxy.controller;
import com.xxy.bean.Message;
import com.xxy.mvc.ResponseBody;
import com.xxy.service.AdminService;
import com.xxy.util.JSONUtil;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Date;
public class AdminController {
@ResponseBody("/admin/login.do")
public String login(HttpServletRequest req, HttpServletResponse resp) {
// 1, 接收参数
String username = req.getParameter("username");
String password = req.getParameter("password");
// 2, 调用service传递参数,并获取结果
boolean result = AdminService.login(username, password);
// 3, 根据结果准备不同的返回数据
Message msg = null;
if (result) {
msg = new Message(0, "登录成功");
Date date = new Date();
String ip = req.getRemoteAddr();
AdminService.updateLoginTimeAndIP(username, date, ip);
} else {
msg = new Message(-1, "登录失败");
}
// 4, 将数据转换为JSON
String json = JSONUtil.toJSON(msg);
// 5, 将JSON返回给ajax
return json;
}
}
3,处理字符乱码问题
在src中创建filter目录,编写CharsetFilter
package com.xxy.filter;
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;
@WebFilter("*.do")
public class CharsetFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
servletRequest.setCharacterEncoding("utf-8");
servletResponse.setContentType("text/json;charset=utf-8");
servletResponse.setCharacterEncoding("utf-8");
filterChain.doFilter(servletRequest, servletResponse);
}
@Override
public void destroy() {
}
}
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