项目——修改
修改页面
获取要修改的对象的servlet
package com.gzsxt.control.user;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.gzsxt.pojo.SysUser;
import com.gzsxt.service.SysUserService;
import com.gzsxt.service.impl.SysUserServiceImpl;
/**
* 根据页面ID值，调用方法，返回一个对象
* @author Administrator
*
*/
@WebServlet("/getuser")
public class GetUSerServlet extends HttpServlet{
//实例化service层
SysUserService service =new SysUserServiceImpl();
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//获取页面传递的ID值
String id =req.getParameter("id");
//类型转换
int u_id=Integer.valueOf(id);
if(u_id>0) {
//调用业务层方法
SysUser user =service.getUserById(u_id);
//把对象存入到Request对象
req.setAttribute("user", user);
req.getRequestDispatcher("/userpage/updateuser.jsp").forward(req, resp);
}
else {
//
}
}
}
dao层的实现
@Override
public SysUser getUserById(int id) {
SysUser user=null;
//编写SQL语句
String sql ="select * from s_user ";
try {
if(id>0) {
sql+="where s_id=?";
}
//执行sql
PreparedStatement statement=util.getConnection(sql);
//接收参数
if(id>0) {
statement.setInt(1, id);
}
//执行sql
ResultSet result=statement.executeQuery();
//判断结果集中是否有数据
if(result.next()) {
user=new SysUser();
user.setS_id(result.getInt("s_id"));//主键
user.setS_username(result.getString("s_userName"));
user.setS_uname(result.getString("s_uname"));
user.setS_email(result.getString("s_email"));
user.setS_phone(result.getLong("s_phone"));
user.setS_password(result.getString("s_password"));
}
} catch (SQLException e) {
e.printStackTrace();
}
return user;
}
updatauser.jsp
将存有修改数据的对象请求转发到updatauser.jsp(和addlist.jsp页面一样)
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>绿地中央广场综合物业办公系统 - 用户添加页面</title>
<meta name="keywords" content="绿地中央广场综合物业办公系统">
<meta name="description" content="绿地中央广场综合物业办公系统">
<link rel="${pageContext.request.contextPath }/shortcut icon" href="favicon.ico">
<link href="${pageContext.request.contextPath }/css/bootstrap.min14ed.css?v=3.3.6" rel="stylesheet">
<link href="${pageContext.request.contextPath }/css/font-awesome.min93e3.css?v=4.4.0" rel="stylesheet">
<link href="${pageContext.request.contextPath }/css/plugins/iCheck/custom.css" rel="stylesheet">
<link href="${pageContext.request.contextPath }/css/animate.min.css" rel="stylesheet">
<link href="${pageContext.request.contextPath }/css/style.min862f.css?v=4.1.0" rel="stylesheet">
</head>
<body class="gray-bg">
<div class="wrapper wrapper-content animated fadeInRight">
<div class="row">
<div class="col-sm-8">
<div class="ibox float-e-margins">
<div class="ibox-title">
<h5>用户修改</h5>
<div class="ibox-tools">
<a class="collapse-link">
<i class="fa fa-chevron-up"></i>
</a>
<a class="dropdown-toggle" data-toggle="dropdown" href="form_basic.html#">
<i class="fa fa-wrench"></i>
</a>
<ul class="dropdown-menu dropdown-user">
<li><a href="form_basic.html#">选项1</a>
</li>
<li><a href="form_basic.html#">选项2</a>
</li>
</ul>
<a class="close-link">
<i class="fa fa-times"></i>
</a>
</div>
</div>
在表单的value值里写出默认要修改的值
<div class="ibox-content">
<!-- 修改的表单 -->
<form method="post" action="updateuser" class="form-horizontal" id="myform">
<!-- 存放ID值 -->
<div class="form-group">
<label class="col-sm-2 control-label">编号</label>
<div class="col-sm-10">
<input type="text" readonly="readonly" name="u_id" class="form-control" value="${user.s_id }">
</div>
</div>
<div class="hr-line-dashed"></div>
<div class="form-group">
<label class="col-sm-2 control-label">用户名</label>
<div class="col-sm-10">
<input type="text" id="username" name="username" class="form-control" value="${user.s_username }">
<!-- 错误提示信息 -->
<span id="errorusername"></span>
</div>
</div>
<div class="hr-line-dashed"></div>
<div class="form-group">
<label class="col-sm-2 control-label">昵称</label>
<div class="col-sm-10">
<input type="text" id="uname" name="uname" value="${user.s_uname }" class="form-control">
<span id="erroruname"></span>
</div>
</div>
<div class="hr-line-dashed"></div>
<div class="form-group">
<label class="col-sm-2 control-label">密码</label>
<div class="col-sm-10">
<input type="password" value="${user.s_password }" class="form-control" name="password">
<span id="errorpwd"></span>
</div>
</div>
<div class="hr-line-dashed"></div>
<div class="form-group">
<label class="col-sm-2 control-label">邮箱</label>
<div class="col-sm-10">
<input type="email" id="email" value="${user.s_email }" name="email" placeholder="输入一个正确的邮箱.." class="form-control">
<span id="erroremail"></span>
</div>
</div>
<div class="hr-line-dashed"></div>
<div class="form-group">
<label class="col-sm-2 control-label">手机号码</label>
<div class="col-sm-10">
<input type="text" id="phone" value="${user.s_phone }" maxlength="11" name="phone" placeholder="输入一个正确的手机号." class="form-control">
<span id="errorphone"></span>
</div>
</div>
<div class="hr-line-dashed"></div>
<div class="form-group">
<div class="col-sm-4 col-sm-offset-2">
<button class="btn btn-primary" id="submit" type="submit">保存内容</button>
<button class="btn btn-white" type="reset">取消</button>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
装饰代码
<div id="modal-form" class="modal fade" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-body">
<div class="row">
<div class="col-sm-6 b-r">
<h3 class="m-t-none m-b">登录</h3>
<p>欢迎登录本站(⊙o⊙)</p>
<form role="form">
<div class="form-group">
<label>用户名：</label>
<input type="email" placeholder="请输入用户名" class="form-control">
</div>
<div class="form-group">
<label>密码：</label>
<input type="password" placeholder="请输入密码" class="form-control">
</div>
<div>
<button class="btn btn-sm btn-primary pull-right m-t-n-xs" type="submit"><strong>登录</strong>
</button>
<label>
<input type="checkbox" class="i-checks">自动登录</label>
</div>
</form>
</div>
<div class="col-sm-6">
<h4>还不是会员？</h4>
<p>您可以注册一个账户</p>
<p class="text-center">
<a href="form_basic.html"><i class="fa fa-sign-in big-icon"></i></a>
</p>
</div>
</div>
</div>
</div>
</div>
</div>
<script src="${pageContext.request.contextPath }/js/jquery.min.js?v=2.1.4"></script>
<script src="${pageContext.request.contextPath }/js/bootstrap.min.js?v=3.3.6"></script>
<script src="${pageContext.request.contextPath }/js/content.min.js?v=1.0.0"></script>
<script src="${pageContext.request.contextPath }/js/plugins/iCheck/icheck.min.js"></script>
<!--引入jQuery关于form的插件 -->
<script src="${pageContext.request.contextPath }/js/jquery.form.js"></script>
<script>
$(document).ready(function(){$(".i-checks").iCheck({checkboxClass:"icheckbox_square-green",radioClass:"iradio_square-green",})});
</script>
<script type="text/javascript" src="http://tajs.qq.com/stats?sId=9051096" charset="UTF-8"></script>
</body>
jquery代码-小部分验证
<script type="text/javascript">
$(document).ready(function(){
//定义一个全局变量。作用：作为用户名重名的时候，表单不能提交的一个依据。
变量为true，证明表单可以提交，为false的时候，表单不能提交
var resName=true;
/* 用户验证 */
$("#username").blur(function(){
var nameValue=$(this).val();//获取文本框的value值
//使用ajax进行异步验证
$.ajax({
type:'post',
url:'../checkuser',//留意路径问题..、:返回上一级
data:{"name":nameValue},
dataType:'json',
success:function(data){
if(data.id==1){//用户名已存在
$("#errorusername").html(data.decoration);
resName=false;
}else if (data.id==2) {//可用
$("#errorusername").html(data.decoration);
resName=true;
}
else if(data.id==3){//用户名不能为空
$("#errorusername").html(data.decoration);
resName=false;
}
}
});
});
/*
通用的函数(函数封装)
nodeId:当前对象的ID值
regular：正则表达式
errorId:错误提示信息的标签ID
rightMessage:正确的提示信息
errorMessage:错误提示信息内容
*/
function checkUserMessage(nodeId,regular,errorId,rightMessage,errorMessage) {
var Value=$("#"+nodeId).val();
//正则表达式
var Reg=regular;
//通过正则表达式的test()进行匹配
if(Reg.test(Value)){//用户名可以
$("#"+errorId).html(rightMessage);
$("#"+errorId).css("color","green");
return true;
}else{
$("#"+errorId).html(errorMessage);
$("#"+errorId).css("color","red");
return false;
}
}
/* 使用jQuery的form表单插件实现用户添加功能 */
$("#submit").click(function(){
$("#myform").ajaxForm({
dataType:'json',
//表单提交前，触发的函数
beforeSubmit:function(){//返回true，则表单可用提交。返回false，则不能提交
//调用刚才封装好的验证用户数据的函数
//验证用户名
/* var nameFlag=checkUserMessage("username",/^([\u4e00-\u9fa5]){2,8}$/ig,"errorusername",
"用户名格式正确,是否重名？","用户名格式不正确..");
//昵称
var uicFlag=checkUserMessage("uname",/^([\u4e00-\u9fa5]){2,8}$/ig,"erroruname",
"昵称格式正确","昵称格式不正确..");
//密码
var pwdFlag=checkUserMessage("password",/^[a-zA-z]{2}\w{4,6}$/,"errorpwd",
"密码格式正确","密码格式不正确..");
//邮箱
var emailFlag=checkUserMessage("email",/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/ig,"erroremail",
"邮箱格式正确","邮箱格式不正确..");
//手机号码
var phoneFlag=checkUserMessage("phone", /^1(3|4|5|7|8)\d{9}$/ig,"errorphone",
"手机格式正确","手机格式不正确.."); */
return resName;
},
success:function(data){
if(data.id==1){
alert(data.decoration);
//跳出当前iframe嵌套课件
top.location.replace('index.jsp');
}else if (data.id==0) {
alert(data.decoration);
}
}
});
});
});
</script>
</html>
UpdateuserServlet（将form表单要修改的接收进来）
package com.gzsxt.control.user;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.alibaba.fastjson.JSON;
import com.gzsxt.message.Message;
import com.gzsxt.service.SysUserService;
import com.gzsxt.service.impl.SysUserServiceImpl;
@WebServlet("/updateuser")
public class UpdateUserServlet extends HttpServlet{
//实例化service层
SysUserService service =new SysUserServiceImpl();
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//获取form表单数据
int id =Integer.valueOf(req.getParameter("u_id"));//直接实现类型转换
String username =req.getParameter("username");
String uname =req.getParameter("uname");
String password =req.getParameter("password");
String email =req.getParameter("email");
String phone =req.getParameter("phone");
Long phoneLong=Long.parseLong(phone);
//调用service的修改数据方法
int row=service.updatUser(id, username, uname, password, email, phoneLong);
if(row>0) {//证明修改成功..
Message message=new Message(1, "修改成功");
String jsonmString=JSON.toJSONString(message);
resp.getWriter().append(jsonmString);
}else {
Message message=new Message(0, "修改失败");
String jsonmString=JSON.toJSONString(message);
resp.getWriter().append(jsonmString);
}
}
}
dao层的实现修改功能
@Override
public int updatUser(int id, String username, String uname, String pwd, String email, Long phone) {
//编写sql语句
String sql="update s_user set s_userName=?,s_uname=?,s_password=?,s_email=?,s_phone=? where s_id=?";
PreparedStatement statement=util.getConnection(sql);
int row=0;
//存入参数
try {
if(username!=null) {
statement.setString(1, username);
}
if(uname!=null) {
statement.setString(2, uname);
}
if(pwd!=null) {
statement.setString(3, pwd);
}
if(email!=null) {
statement.setString(4, email);
}
if(phone!=null) {
statement.setLong(5,phone);
}
if(id>0) {
statement.setInt(6, id);
}
row=statement.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
return row;
}
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