客户信息管理系统7—客户信息的修改

来源：互联网发布：acdsee mac pro注册机编辑：程序博客网时间：2024/06/07 09:40

客户信息管理系统7—客户信息的修改

4、功能四:客户信息的修改:

（1）修改流程

（2）修改分析

选择要修改的客户信息，然后把要修改的信息显示在表单上；然后在该表单上进行修改信息，然后点击修改完成，然后重新显示修改后的客户查询信息情况

（3）代码组成

findAllCustomer.jsp+ updateInfo.jsp+

GetUpdateInfoServlet+UpdateServlet +

CustomersService + CustomersDao + CustomersDaoImplement

（4）代码功能介绍

【1】findAllCustomer.jsp：查询结果显示页面，修改客户信息的入口

【2】updateInfo.jsp ：显示要修改的表单信息页面

【3】GetUpdateInfoServlet：获取要修改的客户信息的web层

【4】UpdateServlet：修改客户信息的web层

【5】CustomersService ：业务层（getUpdateInfo(id)方法，update(customers)方法）

【6】CustomersDao：dao接口层（getUpdateInfo(id)方法，update(customers)方法）

【7】CustomersDaoImplement：dao结构层实现类（getUpdateInfo(id)方法，update(customers)方法）

（5）代码详细

4.5.1 findAllCustomer.jsp：查询结果显示页面，修改客户信息的入口

详细看功能一代码实现，已经写好了

4.5.2 updateInfo.jsp ：显示要修改的表单信息页面

<%@ page language="java" import="java.util.*"   contentType="text/html;charset=utf-8"pageEncoding="UTF-8"%>   <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %><%@ taglib uri="http://java.sun.com/jsp/jstl/functions"prefix="fn" %><%   String path = request.getContextPath();   String basePath = request.getScheme() + "://"         + request.getServerName() + ":" + request.getServerPort()         + path + "/";%> <!DOCTYPE HTML PUBLIC "-//W3C//DTDHTML 4.01 Transitional//EN"><html><head><base href="<%=basePath%>"> <title>My JSP 'addCustomer.jsp' starting page</title> <meta http-equiv="pragma"content="no-cache"><meta http-equiv="cache-control"content="no-cache"><meta http-equiv="expires"content="0"><meta http-equiv="keywords"content="keyword1,keyword2,keyword3"><meta http-equiv="description"content="This is my page"> <!-- 路径问题：此种是错误的 --><!-- <script type="text/javascript"src="/js/jquery-1.7.1.min.js"></script>--> <script type="text/javascript"src="js/jquery-1.7.1.min.js"></script><script type="text/javascript"src="js/jquery-ui-1.8.18.custom.min.js"></script><link href="css/jquery-ui-1.8.18.custom.css"rel="stylesheet" type="text/css"/><script type="text/javascript">   $(function(){      $("#birthday").datepicker({         minDate:new Date(1980, 0, 01),         maxDate:new Date(2020, 11, 31),         yearRange:'-40:+30',         changeMonth:true,         changeYear:true,         dateFormat:'yy-mm-dd'      });   });</script> </head> <h3>客户信息修改的页面</h3> <body>   <!-- <font color="red">${msg}</font> -->   <%      //生成一个唯一的串      String token =UUID.randomUUID().toString();      session.setAttribute("token_session", token);//设置session        %>   <form action="${pageContext.request.contextPath }/UpdateServlet"      method="post">      <!-- <formaction="/customer_system/CustomersServlet"method="post"> -->      <table>      <tr>         <td>编号</td>         <td>         ${customers.id }         </td>      </tr>              <tr>            <td>名字</td>            <td>            <input type="text" name="name"value="${customers.name}">           <!--           设置token  的隐藏数值 -->             <input type="hidden" name="token"value="${token_session}">            <input type="hidden" name="id"value="${customers.id}">            </td>         </tr>         <tr>            <td>性别</td>            <td><input type="radio"name="gender" value="男"            <c:if test="${customers.gender=='男'}">            checked="checked"            </c:if>            >男             <input type="radio"name="gender" value="女"             <c:if test="${customers.gender=='女'}">            checked="checked"            </c:if>             >女</td>         </tr>          <tr>            <td>生日</td>            <td><input type="text"name="birthday" id="birthday"value="${customers.birthday}"></td>         </tr>          <tr>            <td>手机</td>            <td><input type="text"name="cellphone" value="${customers.cellphone }"></td>         </tr>          <tr>            <td>电子邮件</td>            <td><input type="text"name="email" value="${customers.email }"></td>         </tr>          <tr>            <td>客户爱好</td><!--           错误的逻辑 --><!--           <c:iftest="${customers.preference=='上班'}"> --><!--           checked="checked"--><!--           </c:if> -->            <td><input type="checkbox"name="preference" value="上班"             <c:if test="${fn:contains(customers.preference,'上班')}">            checked="checked"            </c:if>            >上班                <input type="checkbox" name="preference"value="工作"                <c:if test="${fn:contains(customers.preference,'工作')}">                checked="checked"                </c:if>                >工作                <input type="checkbox" name="preference"value="学习"                <c:if test="${fn:contains(customers.preference,'学习')}">                checked="checked"                </c:if>                >学习                <input type="checkbox" name="preference"value="睡觉"                <c:if test="${fn:contains(customers.preference,'睡觉')}">                checked="checked"                </c:if>                >睡觉</td>         </tr>          <tr>            <td>客户类型</td>            <td><select name="type">                   <option value="vip"                   <c:if test="${customers.type=='vip'}">                   selected="selected"                   </c:if>                                     >vip</option>                   <option value="黄金vip"                   <c:if test="${customers.type=='黄金vip'}">                   selected="selected"                   </c:if>                   >黄金vip</option>                   <option value="普通用户"                   <c:if test="${customers.type=='普通用户'}">                   selected="selected"                   </c:if>                   >普通用户</option>                   <option value="超级vip"                   <c:if test="${customers.type=='超级vip'}">                   selected="selected"                   </c:if>                  >超级vip</option>            </select></td>         </tr>          <tr>            <td>备注</td><!--           <td><textarearows="5" cols="30" name="description"value="${customers.description }"></textarea></td>-->            <td><textarea rows="5"cols="30" name="description">${customers.description}</textarea></td>         </tr>         <tr>            <td colspan="2"><input type="submit"value="提交">                   <input type="reset"value="重置"></td>         </tr>        </table>   </form></body></html>

4.5.3 GetUpdateInfoServlet：获取要修改的客户信息的web层

package com.zhku.jsj144.zk.web; import java.io.IOException; import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse; import com.zhku.jsj144.zk.domain.Customers;importcom.zhku.jsj144.zk.service.CustomersService; public class GetUpdateInfoServlet extendsHttpServlet {          publicvoid doGet(HttpServletRequest request, HttpServletResponse response)                            throwsServletException, IOException {                   //得到修改的相关信息                   Stringid = request.getParameter("id");                                     CustomersServicecustomersService=new CustomersService();                   Customerscustomers=customersService.getUpdateInfo(id);                                     //保存查询结果，并将查询结果显示到修改信息页面进行显示                   request.setAttribute("customers",customers);                   request.getRequestDispatcher("/updateInfo.jsp").forward(request,response);                           }          publicvoid doPost(HttpServletRequest request, HttpServletResponse response)                            throwsServletException, IOException {                    doGet(request,response);          } }

4.5.4 UpdateServlet：修改客户信息的web层

package com.zhku.jsj144.zk.web; import java.io.IOException;importjava.lang.reflect.InvocationTargetException;import java.util.Arrays; import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse; importorg.apache.commons.beanutils.BeanUtils; import com.zhku.jsj144.zk.domain.Customers;importcom.zhku.jsj144.zk.service.CustomersService; public class UpdateServlet extendsHttpServlet {          publicvoid doGet(HttpServletRequest request, HttpServletResponse response)                            throwsServletException, IOException {                    //解决乱码问题                   request.setCharacterEncoding("utf-8");                   response.setCharacterEncoding("text/html;charset=utf-8");                                                       //更新要修改的表单信息                   CustomersServicecustomersService=new CustomersService();                                     //封装表单信息                   try{                            Customerscustomers=new Customers();                            BeanUtils.populate(customers,request.getParameterMap());                            //额外处理                                                       //对于爱好preference是多个值，那么使用beanutils封装时，会丢失数据，需要手动处理                            String[]values=request.getParameterValues("preference");                            if(values!=null){                                     Stringpreference=Arrays.toString(values);//将数组变为字符串[上班,工作]                                     //进一步处理：将 [上班,工作]  ---> 上班,工作                                     preference=preference.substring(1,preference.length()-1);                                     customers.setPreference(preference);//设置爱好                            }                                                       //更改信息                            customersService.update(customers);                                                       //重新显示查询信息                            request.getRequestDispatcher("/FindAllServlet").forward(request,response);                   }catch (Exception e) {                            thrownew RuntimeException(e);                   }                           }          publicvoid doPost(HttpServletRequest request, HttpServletResponse response)                            throwsServletException, IOException {                    doGet(request,response);          } }