JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Bootstrap.
基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可
开发工具:eclipse/idea/myeclipse/sts等均可配置运行
适用
课程设计,大作业,毕业设计,项目练习,学习演示等
//查询列和关键字
String searchColumn = Util.decode(request, "searchColumn");
String keyword = Util.decode(request, "keyword");
Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
params.put("searchColumn", searchColumn);//要查询的列
params.put("keyword", keyword);//查询的关键字
NoticeService noticeService = new NoticeServiceImpl();
Map<String, Object> map = noticeService.list(params);
request.getSession().setAttribute("list", map.get("list"));
Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数,用于分页
String pageNum = Util.decode(request, "pageNum");//封装分页参数
com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
params.put("startIndex", pb.getStartIndex());
params.put("pageSize", pb.getPageSize());
User vo = userService.get(id);
request.getSession().setAttribute("vo", vo);
String to = "get".equalsIgnoreCase(action) ? "info" : "edit";//判断是去详情显示页面还是编辑页面
response.sendRedirect("user_" + to + ".jsp");
} else {//默认去列表页面
this.redirectList(request, response);
}
}
/**
* 处理Get请求
*
* @param request
* @param response
* @throws ServletException
* @throws IOException
*/
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);//Get请求和Post请求的处理是一样的,所以把request、response转交给Post方法就好
}
ps.setString(7, vo.getUserType());
ps.setLong(8, vo.getId());
ps.execute();
ps.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
}
}
//@Override
public boolean delete(long id) {
try {
Connection c = Util.getConnection();
Statement s = c.createStatement();
String sql = "delete from `t_user` where id = " + id;
s.execute(sql);
</thead>
<tbody>
<c:forEach items="${list}" var="vo">
<tr class="index-content-table-td">
<td>${vo.wupinName}</td>
<td>${vo.wupinNo}</td>
<td>${vo.wupinCount}</td>
<td>${vo.wupinType}</td>
<td>${vo.wupinGys}</td>
<td>${vo.wupinGuige}</td>
<td>${vo.wupinPrice}</td>
<td title="${vo.wupinText}">
<c:choose>
<c:when test="${fn:length(vo.wupinText) > 19}">
<c:out value="${fn:substring(vo.wupinText, 0, 19)}..."/>
</c:when>
<c:otherwise>
<c:out value="${vo.wupinText}"/>
</c:otherwise>
</c:choose>
</td>
<td>
<button class="btn btn-line btn-rect btn-default btn-sm" style="padding: 0px 1px;" onclick="window.location.href='GoodServlet?action=get&id=${vo.id}'">详情</button>
<button class="btn btn-line btn-rect btn-primary btn-sm" style="padding: 0px 1px;"
<c:if test="${loginUser.userType != '管理员'}">disabled="disabled" title="没有权限!!!"</c:if>
int charsLength = codeChars.length();
// 下面三条记录是关闭客户端浏览器的缓冲区
// 这三条语句都可以关闭浏览器的缓冲区,但是由于浏览器的版本不同,对这三条语句的支持也不同
// 因此,为了保险起见,建议同时使用这三条语句来关闭浏览器的缓冲区
response.setHeader("ragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
// 设置图形验证码的长和宽(图形的大小)
int width = 90, height = 20;
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics g = image.getGraphics();// 获得用于输出文字的Graphics对象
Random random = new Random();
g.setColor(getRandomColor(180, 250));// 随机设置要填充的颜色
g.fillRect(0, 0, width, height);// 填充图形背景
// 设置初始字体
g.setFont(new Font("Times New Roman", Font.ITALIC, height));
g.setColor(getRandomColor(120, 180));// 随机设置字体颜色
// 用于保存最后随机生成的验证码
StringBuilder validationCode = new StringBuilder();
<td width="12%">手机:</td><td><input class="index-content-table-td-add" type="text" id="userPhone" name="userPhone" value="${vo.userPhone}"/></td>
</tr>
<tr>
<td width="12%">备注:</td><td><textarea id="userText" name="userText" style="width: 60%; height: 100px;padding: 0px 17px;" placeholder="请输入内容......">${vo.userText}</textarea></td>
</tr>
<tr>
<td width="12%">类型:</td>
<td>
<input <c:if test="${loginUser.userType != '管理员'}">disabled="disabled" title="没有权限!!!"</c:if> name="userType" type="radio" value="管理员" ${vo.userType=='管理员'?'checked':''}/> 管理员
<input name="userType" type="radio" value="普通用户" ${vo.userType=='普通用户'?'checked':''}/> 普通用户
</td>
</tr>
</table>
<br>
<br>
<br>
<button type="submit" class="btn btn-line btn-rect btn-default btn-sm">提交</button> <button type="button" class="btn btn-line btn-rect btn-default btn-sm" onclick="javascript:history.back(-1);">取消</button>
</form>
</div>
String action = Util.decode(request, "action");
if ("add".equals(action)) {//增加
User vo = new User();
//取出页面传进来的各个数据,并设置到User对象的属性里
vo.setUsername(Util.decode(request, "username"));
vo.setPassword(Util.decode(request, "password"));
vo.setRealName(Util.decode(request, "realName"));
vo.setUserSex(Util.decode(request, "userSex"));
vo.setUserPhone(Util.decode(request, "userPhone"));
vo.setUserText(Util.decode(request, "userText"));
vo.setUserType(Util.decode(request, "userType"));
UserService userService = new UserServiceImpl();
//调用Service层增加方法(add),增加记录
userService.add(vo);
this.redirectList(request, response);
} else if ("delete".equals(action)) {//删除
//取出表要删除的用户记录的主键
long id = Long.parseLong(Util.decode(request, "id"));
UserService userService = new UserServiceImpl();
//调用Service层删除方法(delete),将对应的记录删除
userService.delete(id);
this.redirectList(request, response);
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 公告模块的Servlet控制层,负责接收页面传过来的请求参数,根据action参数的值来确定页面要执行的具体操作<br>
* 而后再调用NoticeService业务层的方法来处理具体的业务,最后将处理完成的结果返回或跳转至相应页面
*/
//@WebServlet("/NoticeServlet")
public class NoticeServlet extends HttpServlet {
/**
* 处理Post请求
*
* @param request
* @param response
* @throws ServletException
* @throws IOException
*/
@Override
if ("add".equals(action)) {//增加
Gys vo = new Gys();
//取出页面传进来的各个数据,并设置到Gys对象的属性里
vo.setGysNo(Util.decode(request, "gysNo"));
vo.setGysName(Util.decode(request, "gysName"));
vo.setGysContact(Util.decode(request, "gysContact"));
vo.setGysPhone(Util.decode(request, "gysPhone"));
vo.setGysText(Util.decode(request, "gysText"));
GysService gysService = new GysServiceImpl();
//调用Service层增加方法(add),增加记录
gysService.add(vo);
this.redirectList(request, response);
} else if ("delete".equals(action)) {//删除
//取出表要删除的供应商记录的主键
long id = Long.parseLong(Util.decode(request, "id"));
GysService gysService = new GysServiceImpl();
*/
private void redirectList(HttpServletRequest request, HttpServletResponse response) throws IOException {
//查询列和关键字
String searchColumn = Util.decode(request, "searchColumn");
String keyword = Util.decode(request, "keyword");
Map<String, Object> params = new HashMap();//用来保存控制层传进来的参数(查询条件)
params.put("searchColumn", searchColumn);//要查询的列
params.put("keyword", keyword);//查询的关键字
GoodService goodService = new GoodServiceImpl();
Map<String, Object> map = goodService.list(params);
request.getSession().setAttribute("list", map.get("list"));
Integer totalRecord = (Integer) map.get("totalCount");//根据查询条件取出对应的总记录数,用于分页
String pageNum = Util.decode(request, "pageNum");//封装分页参数
com.demo.util.PageBean<Object> pb = new com.demo.util.PageBean(Integer.valueOf(pageNum != null ? pageNum : "1"), totalRecord);
params.put("startIndex", pb.getStartIndex());
params.put("pageSize", pb.getPageSize());
List list = (List) goodService.list(params).get("list");//根据分页参数startIndex、pageSize查询出来的最终结果list
pb.setServlet("GoodServlet");
pb.setSearchColumn(searchColumn);
pb.setKeyword(keyword);
pb.setList(list);
request.getSession().setAttribute("pageBean", pb);
request.getSession().setAttribute("list", pb.getList());
//@Override
public User get(Serializable id) {
User vo = null;
try {
Connection c = Util.getConnection();
Statement s = c.createStatement();
String sql = "select * from `t_user` where id = " + id;
ResultSet rs = s.executeQuery(sql);
if (rs.next()) {
vo = new User();
vo.setId(rs.getLong("id"));
vo.setUsername(rs.getString("username"));
vo.setPassword(rs.getString("password"));
vo.setRealName(rs.getString("real_name"));
vo.setUserSex(rs.getString("user_sex"));
vo.setUserPhone(rs.getString("user_phone"));
//提交之前进行检查,如果return false,则不允许提交
function check() {
//根据ID获取值
if (document.getElementById("username").value.trim().length == 0) {
alert("用户名不能为空!");
return false;
}
if (document.getElementById("password").value.trim().length == 0) {
alert("密码不能为空!");
return false;
}
if (document.getElementById("realName").value.trim().length == 0) {
alert("姓名不能为空!");
return false;
}
try {
Connection c = Util.getConnection();
Statement s = c.createStatement();
String sql = "select * from `t_caigou` where id = " + id;
ResultSet rs = s.executeQuery(sql);
if (rs.next()) {
vo = new Caigou();
vo.setId(rs.getLong("id"));
vo.setCaigouName(rs.getString("caigou_name"));
vo.setCaigouType(rs.getString("caigou_type"));
vo.setCaigouCount(rs.getString("caigou_count"));
vo.setCaigouDate(rs.getString("caigou_date"));
vo.setCaigouText(rs.getString("caigou_text"));
}
c.close();
} catch (Exception e) {
e.printStackTrace();
alert("供应商不能为空!");
return false;
}
if (document.getElementById("wupinGuige").value.trim().length == 0) {
alert("规格不能为空!");
return false;
}
if (document.getElementById("wupinPrice").value.trim().length == 0) {
alert("采购价不能为空!");
return false;
}
return true;
}
</script>
</html>
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>添加用户</title>
<link rel="stylesheet" type="text/css" href="css/index.css"/>
</head>
<body>
<jsp:include page="menu.jsp"/>
<div class="index-content">
<div class="index-content-operation">
<a class="info-detail">添加用户</a>
<br>
<br>
</div>
<br>
<form action="UserServlet?action=add" method="post" onsubmit="return check()">
<table class="index-content-table-add">
<tr>
<td width="12%">用户名:</td><td><input class="index-content-table-td-add" type="text" id="username" name="username" value=""/></td>
</tr>
<tr>
<td width="12%">密码:</td><td><input class="index-content-table-td-add" type="text" id="password" name="password" value=""/></td>
</tr>
<tr>
<td width="12%">姓名:</td><td><input class="index-content-table-td-add" type="text" id="realName" name="realName" value=""/></td>
</tr>
package com.demo.servlet;
import com.demo.util.Util;
import com.demo.service.NoticeService;
import com.demo.service.impl.NoticeServiceImpl;
import com.demo.vo.Notice;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 公告模块的Servlet控制层,负责接收页面传过来的请求参数,根据action参数的值来确定页面要执行的具体操作<br>
* 而后再调用NoticeService业务层的方法来处理具体的业务,最后将处理完成的结果返回或跳转至相应页面
<br>
</div>
<br>
<form action="GoodServlet?action=edit" method="post" onsubmit="return check()">
<input type="hidden" id="id" name="id" value="${vo.id}"/>
<table class="index-content-table-add">
<tr>
<td width="12%">名称:</td><td><input class="index-content-table-td-add" type="text" id="wupinName" name="wupinName" value="${vo.wupinName}"/></td>
</tr>
<tr>
<td width="12%">编号:</td><td><input class="index-content-table-td-add" type="text" id="wupinNo" name="wupinNo" value="${vo.wupinNo}"/></td>
</tr>
<tr>
<td width="12%">数量:</td><td><input class="index-content-table-td-add" type="text" id="wupinCount" name="wupinCount" value="${vo.wupinCount}"/></td>
</tr>
<tr>
<td width="12%">类别:</td><td><input class="index-content-table-td-add" type="text" id="wupinType" name="wupinType" value="${vo.wupinType}"/></td>
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 用户模块的DAO层(数据层)的具体实现类,对UserDAO接口中定义的增删改查等抽象方法作出具体的功能实现
*/
public class UserDAOImpl implements UserDAO {
//@Override
public void add(User vo) {
String sql = "insert into `t_user` (`username`,`password`,`real_name`,`user_sex`,`user_phone`,`user_text`,`user_type`) values(?,?,?,?,?,?,?)";
try {
Connection c = Util.getConnection();
PreparedStatement ps = c.prepareStatement(sql);
ps.setString(1, vo.getUsername());
ps.setString(2, vo.getPassword());
ps.setString(3, vo.getRealName());
Caigou vo = new Caigou();
vo.setId(rs.getLong("id"));
vo.setCaigouName(rs.getString("caigou_name"));
vo.setCaigouType(rs.getString("caigou_type"));
vo.setCaigouCount(rs.getString("caigou_count"));
vo.setCaigouDate(rs.getString("caigou_date"));
vo.setCaigouText(rs.getString("caigou_text"));
list.add(vo);
}
String sqlCount = "select count(*) from `t_caigou` where 1=1 " + condition;
ps = c.prepareStatement(sqlCount);
rs = ps.executeQuery();
if (rs.next()) {
totalCount = rs.getInt(1);
}
rs.close();
ps.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
}
Map<String, Object> result = new HashMap();
maxColor = 255;
// 获得红色的随机颜色值
int red = minColor + random.nextInt(maxColor - minColor);
// 获得绿色的随机颜色值
int green = minColor + random.nextInt(maxColor - minColor);
// 获得蓝色的随机颜色值
int blue = minColor + random.nextInt(maxColor - minColor);
return new Color(red, green, blue);
}
}
package com.demo.servlet;
import com.demo.util.Util;
import com.demo.service.GoodService;
import com.demo.service.impl.GoodServiceImpl;
import com.demo.vo.Good;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
} catch (Exception e) {
e.printStackTrace();
}
Map<String, Object> result = new HashMap();
result.put("list", list);
result.put("totalCount", totalCount);
return result;
}
}
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>修改物资</title>
<link rel="stylesheet" type="text/css" href="css/index.css"/>
</head>
<body>
<jsp:include page="menu.jsp"/>
<div class="index-content">
<div class="index-content-operation">
<a class="info-detail">修改物资</a>
public boolean delete(long id) {
try {
Connection c = Util.getConnection();
Statement s = c.createStatement();
String sql = "delete from `t_gys` where id = " + id;
s.execute(sql);
s.close();
c.close();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
//@Override
Connection c = Util.getConnection();
PreparedStatement ps = c.prepareStatement(sql);
ps.setString(1, vo.getWupinName());
ps.setString(2, vo.getWupinNo());
ps.setString(3, vo.getWupinCount());
ps.setString(4, vo.getWupinType());
ps.setString(5, vo.getWupinGys());
ps.setString(6, vo.getWupinGuige());
ps.setString(7, vo.getWupinPrice());
ps.setString(8, vo.getWupinText());
ps.execute();
ps.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
}
运行环境
Java≥6、Tomcat≥7.0、MySQL≥5.5
开发工具
eclipse/idea/myeclipse/sts等均可配置运行
技术框架
JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Bootstrap.
基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可
适用
课程设计,大作业,毕业设计,项目练习,学习演示等
功能说明
登录、注册、退出、用户模块、公告模块、供应商模块、物资模块、采购模块的增删改查管理