73、Servlet复习
初始化sql脚本创建所需要的表
CREATE DATABASE `smbms`; USE `smbms`; DROP TABLE IF EXISTS `smbms_address`; CREATE TABLE `smbms_address` ( `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID', `contact` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系人姓名', `addressDesc` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '收货地址明细', `postCode` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '邮编', `tel` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系人电话', `createdBy` bigint(20) DEFAULT NULL COMMENT '创建者', `creationDate` datetime DEFAULT NULL COMMENT '创建时间', `modifyBy` bigint(20) DEFAULT NULL COMMENT '修改者', `modifyDate` datetime DEFAULT NULL COMMENT '修改时间', `userId` bigint(20) DEFAULT NULL COMMENT '用户ID', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; insert into `smbms_address`(`id`,`contact`,`addressDesc`,`postCode`,`tel`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`,`userId`) values (1,'王丽','东城区东交民巷44号','100010','13678789999',1,'2016-04-13 00:00:00',NULL,NULL,1),(2,'张红丽','丹棱街3号','100000','18567672312',1,'2016-04-13 00:00:00',NULL,NULL,1),(3,'任志强','东城区美术馆后街23号','100021','13387906742',1,'2016-04-13 00:00:00',NULL,NULL,1),(4,'曹颖','朝阳门南大街14号','100053','13568902323',1,'2016-04-13 00:00:00',NULL,NULL,2),(5,'李慧','西城区三里河路南三巷3号','100032','18032356666',1,'2016-04-13 00:00:00',NULL,NULL,3),(6,'王国强','顺义区高丽营镇金马工业区18号','100061','13787882222',1,'2016-04-13 00:00:00',NULL,NULL,3); DROP TABLE IF EXISTS `smbms_bill`; CREATE TABLE `smbms_bill` ( `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID', `billCode` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '账单编码', `productName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品名称', `productDesc` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品描述', `productUnit` varchar(10) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '商品单位', `productCount` decimal(20,2) DEFAULT NULL COMMENT '商品数量', `totalPrice` decimal(20,2) DEFAULT NULL COMMENT '商品总额', `isPayment` int(10) DEFAULT NULL COMMENT '是否支付（1：未支付 2：已支付）', `createdBy` bigint(20) DEFAULT NULL COMMENT '创建者（userId）', `creationDate` datetime DEFAULT NULL COMMENT '创建时间', `modifyBy` bigint(20) DEFAULT NULL COMMENT '更新者（userId）', `modifyDate` datetime DEFAULT NULL COMMENT '更新时间', `providerId` bigint(20) DEFAULT NULL COMMENT '供应商ID', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=19 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; insert into `smbms_bill`(`id`,`billCode`,`productName`,`productDesc`,`productUnit`,`productCount`,`totalPrice`,`isPayment`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`,`providerId`) values (2,'BILL2016_002','香皂、肥皂、药皂','日用品-皂类','块','1000.00','10000.00',2,1,'2016-03-23 04:20:40',NULL,NULL,13),(3,'BILL2016_003','大豆油','食品-食用油','斤','300.00','5890.00',2,1,'2014-12-14 13:02:03',NULL,NULL,6),(4,'BILL2016_004','橄榄油','食品-进口食用油','斤','200.00','9800.00',2,1,'2013-10-10 03:12:13',NULL,NULL,7),(5,'BILL2016_005','洗洁精','日用品-厨房清洁','瓶','500.00','7000.00',2,1,'2014-12-14 13:02:03',NULL,NULL,9),(6,'BILL2016_006','美国大杏仁','食品-坚果','袋','300.00','5000.00',2,1,'2016-04-14 06:08:09',NULL,NULL,4),(7,'BILL2016_007','沐浴液、精油','日用品-沐浴类','瓶','500.00','23000.00',1,1,'2016-07-22 10:10:22',NULL,NULL,14),(8,'BILL2016_008','不锈钢盘碗','日用品-厨房用具','个','600.00','6000.00',2,1,'2016-04-14 05:12:13',NULL,NULL,14),(9,'BILL2016_009','塑料杯','日用品-杯子','个','350.00','1750.00',2,1,'2016-02-04 11:40:20',NULL,NULL,14),(10,'BILL2016_010','豆瓣酱','食品-调料','瓶','200.00','2000.00',2,1,'2013-10-29 05:07:03',NULL,NULL,8),(11,'BILL2016_011','海之蓝','饮料-国酒','瓶','50.00','10000.00',1,1,'2016-04-14 16:16:00',NULL,NULL,1),(12,'BILL2016_012','芝华士','饮料-洋酒','瓶','20.00','6000.00',1,1,'2016-09-09 17:00:00',NULL,NULL,1),(13,'BILL2016_013','长城红葡萄酒','饮料-红酒','瓶','60.00','800.00',2,1,'2016-11-14 15:23:00',NULL,NULL,1),(14,'BILL2016_014','泰国香米','食品-大米','斤','400.00','5000.00',2,1,'2016-10-09 15:20:00',NULL,NULL,3),(15,'BILL2016_015','东北大米','食品-大米','斤','600.00','4000.00',2,1,'2016-11-14 14:00:00',NULL,NULL,3),(16,'BILL2016_016','可口可乐','饮料','瓶','2000.00','6000.00',2,1,'2012-03-27 13:03:01',NULL,NULL,2),(17,'BILL2016_017','脉动','饮料','瓶','1500.00','4500.00',2,1,'2016-05-10 12:00:00',NULL,NULL,2),(18,'BILL2016_018','哇哈哈','饮料','瓶','2000.00','4000.00',2,1,'2015-11-24 15:12:03',NULL,NULL,2); DROP TABLE IF EXISTS `smbms_provider`; CREATE TABLE `smbms_provider` ( `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID', `proCode` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商编码', `proName` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商名称', `proDesc` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商详细描述', `proContact` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '供应商联系人', `proPhone` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '联系电话', `proAddress` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地址', `proFax` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '传真', `createdBy` bigint(20) DEFAULT NULL COMMENT '创建者（userId）', `creationDate` datetime DEFAULT NULL COMMENT '创建时间', `modifyDate` datetime DEFAULT NULL COMMENT '更新时间', `modifyBy` bigint(20) DEFAULT NULL COMMENT '更新者（userId）', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; insert into `smbms_provider`(`id`,`proCode`,`proName`,`proDesc`,`proContact`,`proPhone`,`proAddress`,`proFax`,`createdBy`,`creationDate`,`modifyDate`,`modifyBy`) values (1,'BJ_GYS001','北京三木堂商贸有限公司','长期合作伙伴，主营产品:茅台、五粮液、郎酒、酒鬼酒、泸州老窖、赖茅酒、法国红酒等','张国强','13566667777','丰台区育芳园北路','010-58858787',1,'2013-03-21 16:52:07',NULL,NULL),(2,'HB_GYS001','石家庄帅益食品贸易有限公司','长期合作伙伴，主营产品:饮料、水饮料、植物蛋白饮料、休闲食品、果汁饮料、功能饮料等','王军','13309094212','河北省石家庄新华区','0311-67738876',1,'2016-04-13 04:20:40',NULL,NULL),(3,'GZ_GYS001','深圳市泰香米业有限公司','初次合作伙伴，主营产品：良记金轮米,龙轮香米等','郑程瀚','13402013312','广东省深圳市福田区深南大道6006华丰大厦','0755-67776212',1,'2014-03-21 16:56:07',NULL,NULL),(4,'GZ_GYS002','深圳市喜来客商贸有限公司','长期合作伙伴，主营产品：坚果炒货.果脯蜜饯.天然花茶.营养豆豆.特色美食.进口食品.海味零食.肉脯肉','林妮','18599897645','广东省深圳市福龙工业区B2栋3楼西','0755-67772341',1,'2013-03-22 16:52:07',NULL,NULL),(5,'JS_GYS001','兴化佳美调味品厂','长期合作伙伴，主营产品：天然香辛料、鸡精、复合调味料','徐国洋','13754444221','江苏省兴化市林湖工业区','0523-21299098',1,'2015-11-22 16:52:07',NULL,NULL),(6,'BJ_GYS002','北京纳福尔食用油有限公司','长期合作伙伴，主营产品：山茶油、大豆油、花生油、橄榄油等','马莺','13422235678','珠江帝景1号楼','010-588634233',1,'2012-03-21 17:52:07',NULL,NULL),(7,'BJ_GYS003','北京国粮食用油有限公司','初次合作伙伴，主营产品：花生油、大豆油、小磨油等','王驰','13344441135','北京大兴青云店开发区','010-588134111',1,'2016-04-13 00:00:00',NULL,NULL),(8,'ZJ_GYS001','慈溪市广和绿色食品厂','长期合作伙伴，主营产品：豆瓣酱、黄豆酱、甜面酱，辣椒，大蒜等农产品','薛圣丹','18099953223','浙江省宁波市慈溪周巷小安村','0574-34449090',1,'2013-11-21 06:02:07',NULL,NULL),(9,'GX_GYS001','优百商贸有限公司','长期合作伙伴，主营产品：日化产品','李立国','13323566543','广西南宁市秀厢大道42-1号','0771-98861134',1,'2013-03-21 19:52:07',NULL,NULL),(10,'JS_GYS002','南京火头军信息技术有限公司','长期合作伙伴，主营产品：不锈钢厨具等','陈女士','13098992113','江苏省南京市浦口区浦口大道1号新城总部大厦A座903室','025-86223345',1,'2013-03-25 16:52:07',NULL,NULL),(11,'GZ_GYS003','广州市白云区美星五金制品厂','长期合作伙伴，主营产品：海绵床垫、坐垫、靠垫、海绵枕头、头枕等','梁天','13562276775','广州市白云区钟落潭镇福龙路20号','020-85542231',1,'2016-12-21 06:12:17',NULL,NULL),(12,'BJ_GYS004','北京隆盛日化科技','长期合作伙伴，主营产品：日化环保清洗剂，家居洗涤专卖、洗涤用品网、墙体除霉剂、墙面霉菌清除剂等','孙欣','13689865678','大兴区旧宫','010-35576786',1,'2014-11-21 12:51:11',NULL,NULL),(13,'SD_GYS001','山东豪克华光联合发展有限公司','长期合作伙伴，主营产品：洗衣皂、洗衣粉、洗衣液、洗洁精、消杀类、香皂等','吴洪转','13245468787','山东济阳济北工业区仁和街21号','0531-53362445',1,'2015-01-28 10:52:07',NULL,NULL),(14,'JS_GYS003','无锡喜源坤商行','长期合作伙伴，主营产品：日化品批销','周一清','18567674532','江苏无锡盛岸西路','0510-32274422',1,'2016-04-23 11:11:11',NULL,NULL),(15,'ZJ_GYS002','乐摆日用品厂','长期合作伙伴，主营产品：各种中、高档塑料杯，塑料乐扣水杯（密封杯）、保鲜杯（保鲜盒）、广告杯、礼品杯','王世杰','13212331567','浙江省金华市义乌市义东路','0579-34452321',1,'2016-08-22 10:01:30',NULL,NULL); DROP TABLE IF EXISTS `smbms_role`; CREATE TABLE `smbms_role` ( `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID', `roleCode` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '角色编码', `roleName` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '角色名称', `createdBy` bigint(20) DEFAULT NULL COMMENT '创建者', `creationDate` datetime DEFAULT NULL COMMENT '创建时间', `modifyBy` bigint(20) DEFAULT NULL COMMENT '修改者', `modifyDate` datetime DEFAULT NULL COMMENT '修改时间', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; insert into `smbms_role`(`id`,`roleCode`,`roleName`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`) values (1,'SMBMS_ADMIN','系统管理员',1,'2016-04-13 00:00:00',NULL,NULL),(2,'SMBMS_MANAGER','经理',1,'2016-04-13 00:00:00',NULL,NULL),(3,'SMBMS_EMPLOYEE','普通员工',1,'2016-04-13 00:00:00',NULL,NULL); DROP TABLE IF EXISTS `smbms_user`; CREATE TABLE `smbms_user` ( `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID', `userCode` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户编码', `userName` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户名称', `userPassword` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '用户密码', `gender` int(10) DEFAULT NULL COMMENT '性别（1:女、 2:男）', `birthday` date DEFAULT NULL COMMENT '出生日期', `phone` varchar(15) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '手机', `address` varchar(30) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '地址', `userRole` bigint(20) DEFAULT NULL COMMENT '用户角色（取自角色表-角色id）', `createdBy` bigint(20) DEFAULT NULL COMMENT '创建者（userId）', `creationDate` datetime DEFAULT NULL COMMENT '创建时间', `modifyBy` bigint(20) DEFAULT NULL COMMENT '更新者（userId）', `modifyDate` datetime DEFAULT NULL COMMENT '更新时间', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; insert into `smbms_user`(`id`,`userCode`,`userName`,`userPassword`,`gender`,`birthday`,`phone`,`address`,`userRole`,`createdBy`,`creationDate`,`modifyBy`,`modifyDate`) values (1,'admin','系统管理员','1234567',1,'1983-10-10','13688889999','成府路207号',1,1,'2013-03-21 16:52:07',NULL,NULL), (2,'liming','李明','0000000',2,'1983-12-10','13688884457','区前门东大街9号',2,1,'2014-12-31 19:52:09',NULL,NULL), (5,'hanlubiao','韩路彪','0000000',2,'1984-06-05','18567542321','北辰中心12号',2,1,'2014-12-31 19:52:09',NULL,NULL), (6,'zhanghua','张华','0000000',1,'1983-06-15','13544561111','学院路61号',3,1,'2013-02-11 10:51:17',NULL,NULL), (7,'wangyang','王洋','0000000',2,'1982-12-31','13444561124','西二旗16层',3,1,'2014-06-11 19:09:07',NULL,NULL), (8,'zhaoyan','赵燕','0000000',1,'1986-03-07','18098764545','回龙观小区10号楼',3,1,'2016-04-21 13:54:07',NULL,NULL), (10,'sunlei','孙磊','0000000',2,'1981-01-04','13387676765','管庄新月小区12楼',3,1,'2015-05-06 10:52:07',NULL,NULL), (11,'sunxing','孙兴','0000000',2,'1978-03-12','13367890900','建国门南大街10号',3,1,'2016-11-09 16:51:17',NULL,NULL), (12,'zhangchen','张晨','0000000',1,'1986-03-28','18098765434','管庄路口北柏林爱乐三期13号楼',3,1,'2016-08-09 05:52:37',1,'2016-04-14 14:15:36'), (13,'dengchao','邓超','0000000',2,'1981-11-04','13689674534','北航家属院10号楼',3,1,'2016-07-11 08:02:47',NULL,NULL), (14,'yangguo','杨过','0000000',2,'1980-01-01','13388886623','北苑家园茉莉园20号楼',3,1,'2015-02-01 03:52:07',NULL,NULL), (15,'zhaomin','赵敏','0000000',1,'1987-12-04','18099897657','昌平天通苑3区12号楼',2,1,'2015-09-12 12:02:12',NULL,NULL);
1、搭建环境 项目名称自己定义
2、pom.xml文件 需要的依赖
<dependencies>
<!-- servlet依赖 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- JSP依赖 -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.1</version>
<scope>provided</scope>
</dependency>
<!--JSTL表达式依赖-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!--standard标签库-->
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<!--jdbc -->
<dependency>
<groupId>org.clojure</groupId>
<artifactId>java.jdbc</artifactId>
<version>0.7.11</version>
</dependency>
<!--连接mysql数据库依赖-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<!--fastjson依赖-处理json字符串-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.62</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>RELEASE</version>
<scope>compile</scope>
</dependency>
</dependencies>
3、web.xml文件 修改
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> </web-app>
4、创建包的结构
5、 配置Tomcat
6、创建database.properties
driver=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/smbms?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false user=root password=123456
7、创建实体类pojo、创建dao、创建servlet、创建service
User实体类
public class User { private Integer id; //id private String userCode; //用户编码 private String userName; //用户名称 private String userPassword; //用户密码 private Integer gender; //性别 private Date birthday; //出生日期 private String phone; //电话 private String address; //地址 private Integer userRole; //用户角色 private Integer createdBy; //创建者 private Date creationDate; //创建时间 private Integer modifyBy; //更新者 private Date modifyDate; //更新时间 private Integer age;//年龄 private String userRoleName; //用户角色名称 public String getUserRoleName() { return userRoleName; } public void setUserRoleName(String userRoleName) { this.userRoleName = userRoleName; } public Integer getAge() { /*long time = System.currentTimeMillis()-birthday.getTime(); Integer age = Long.valueOf(time/365/24/60/60/1000).IntegerValue();*/ Date date = new Date(); Integer age = date.getYear()-birthday.getYear(); return age; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUserCode() { return userCode; } public void setUserCode(String userCode) { this.userCode = userCode; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getUserPassword() { return userPassword; } public void setUserPassword(String userPassword) { this.userPassword = userPassword; } public Integer getGender() { return gender; } public void setGender(Integer gender) { this.gender = gender; } public Date getBirthday() { return birthday; } public void setBirthday(Date birthday) { this.birthday = birthday; } public String getPhone() { return phone; } public void setPhone(String phone) { this.phone = phone; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public Integer getUserRole() { return userRole; } public void setUserRole(Integer userRole) { this.userRole = userRole; } public Integer getCreatedBy() { return createdBy; } public void setCreatedBy(Integer createdBy) { this.createdBy = createdBy; } public Date getCreationDate() { return creationDate; } public void setCreationDate(Date creationDate) { this.creationDate = creationDate; } public Integer getModifyBy() { return modifyBy; } public void setModifyBy(Integer modifyBy) { this.modifyBy = modifyBy; } public Date getModifyDate() { return modifyDate; } public void setModifyDate(Date modifyDate) { this.modifyDate = modifyDate; } }
8、创建BaseDao 操作数据库基础类
package com.kuang.dao; import java.io.IOException; import java.io.InputStream; import java.sql.*; import java.util.Properties; /** * 操作数据库的基类--静态类 * @author Administrator * */ public class BaseDao { //静态代码块,在类加载的时候执行 static{ init(); } private static String driver; private static String url; private static String user; private static String password; //初始化连接参数,从配置文件里获得 public static void init(){ Properties params=new Properties(); String configFile = "database.properties"; InputStream is= BaseDao.class.getClassLoader().getResourceAsStream(configFile); try { params.load(is); } catch (IOException e) { e.printStackTrace(); } driver=params.getProperty("driver"); url=params.getProperty("url"); user=params.getProperty("user"); password=params.getProperty("password"); } /** * 获取数据库连接 * @return */ public static Connection getConnection(){ Connection connection = null; try { Class.forName(driver); connection = DriverManager.getConnection(url, user, password); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return connection; } /** * 查询操作 * @param connection * @param pstm * @param rs * @param sql * @param params * @return */ public static ResultSet execute(Connection connection,PreparedStatement pstm,ResultSet rs, String sql,Object[] params) throws Exception{ pstm = connection.prepareStatement(sql); for(int i = 0; i < params.length; i++){ pstm.setObject(i+1, params[i]); } rs = pstm.executeQuery(); return rs; } /** * 更新操作 * @param connection * @param pstm * @param sql * @param params * @return * @throws Exception */ public static int execute(Connection connection,PreparedStatement pstm, String sql,Object[] params) throws Exception{ int updateRows = 0; pstm = connection.prepareStatement(sql); for(int i = 0; i < params.length; i++){ pstm.setObject(i+1, params[i]); } updateRows = pstm.executeUpdate(); return updateRows; } /** * 释放资源 * @param connection * @param pstm * @param rs * @return */ public static boolean closeResource(Connection connection,PreparedStatement pstm,ResultSet rs){ boolean flag = true; if(rs != null){ try { rs.close(); rs = null;//GC回收 } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); flag = false; } } if(pstm != null){ try { pstm.close(); pstm = null;//GC回收 } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); flag = false; } } if(connection != null){ try { connection.close(); connection = null;//GC回收 } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); flag = false; } } return flag; } }
9、编写字符过滤器 CharacterEncoding类 SysFilter类
public class CharacterEncoding implements Filter { @Override public void init(FilterConfig filterConfig) throws ServletException { // TODO Auto-generated method stub } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { // TODO Auto-generated method stub request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); chain.doFilter(request, response); } @Override public void destroy() { // TODO Auto-generated method stub } }
public class SysFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
System.out.println("SysFilter doFilter()===========");
HttpServletRequest rq = (HttpServletRequest)request;
HttpServletResponse rp = (HttpServletResponse)response;
User userSession = (User)rq.getSession().getAttribute("userSession");
String requestURI = rq.getRequestURI();
StringBuffer requestURL = rq.getRequestURL();
if(null == userSession){
if(requestURI.contains("register.jsp")) {
chain.doFilter(request, response);
return;
}
rp.sendRedirect(rq.getContextPath()+"/error.jsp");
}else{
chain.doFilter(request, response);
}
}
@Override
public void destroy() {
}
}
10、在web.xml中注册过滤器
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0">
<filter>
<filter-name>CharacterEncoding</filter-name>
<filter-class>com.edwin.filter.CharacterEncoding</filter-class>
</filter>
<filter-mapping>
<filter-name>CharacterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>SysFilter</filter-name>
<filter-class>com.edwin.filter.SysFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>SysFilter</filter-name>
<url-pattern>/jsp/*</url-pattern>
</filter-mapping>
</web-app>
11、登入的业务
11.1、UserDao接口
public User getLoginUser(Connection connection, String userCode)throws Exception;
11.2、UserDaoImpl实现类
@Override public User getLoginUser(Connection connection, String userCode) throws Exception { // TODO Auto-generated method stub PreparedStatement pstm = null; ResultSet rs = null; User user = null; if(null != connection){ String sql = "select * from smbms_user where userCode=?"; Object[] params = {userCode}; rs = BaseDao.execute(connection, pstm, rs, sql, params); if(rs.next()){ user = new User(); user.setId(rs.getInt("id")); user.setUserCode(rs.getString("userCode")); user.setUserName(rs.getString("userName")); user.setUserPassword(rs.getString("userPassword")); user.setGender(rs.getInt("gender")); user.setBirthday(rs.getDate("birthday")); user.setPhone(rs.getString("phone")); user.setAddress(rs.getString("address")); user.setUserRole(rs.getInt("userRole")); user.setCreatedBy(rs.getInt("createdBy")); user.setCreationDate(rs.getTimestamp("creationDate")); user.setModifyBy(rs.getInt("modifyBy")); user.setModifyDate(rs.getTimestamp("modifyDate")); } BaseDao.closeResource(null, pstm, rs); } return user; }
11.3、编写UserService 业务层
public User login(String userCode, String userPassword);
11.4、编写UserServiceImpl 业务层
@Override public User login(String userCode, String userPassword) { // TODO Auto-generated method stub Connection connection = null; User user = null; try { connection = BaseDao.getConnection(); user = userDao.getLoginUser(connection, userCode); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ BaseDao.closeResource(connection, null, null); } //匹配密码 if(null != user){ if(!user.getUserPassword().equals(userPassword)) user = null; } return user; }
11.5、LoginServlet 登入请求
public class LoginServlet extends HttpServlet { @Override public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } @Override public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println("login ============ " ); //获取用户名和密码 String userCode = request.getParameter("userCode"); String userPassword = request.getParameter("userPassword"); //调用service方法，进行用户匹配 UserService userService = new UserServiceImpl(); User user = userService.login(userCode,userPassword); //登录成功 if(null != user){ //放入session request.getSession().setAttribute(Constants.USER_SESSION, user); //页面跳转（frame.jsp） response.sendRedirect("jsp/frame.jsp"); }else{ //页面跳转（login.jsp）带出提示信息--转发 request.setAttribute("error", "用户名或密码不正确"); request.getRequestDispatcher("login.jsp").forward(request, response); } } }
11.6、LogoutServlet登出请求
public class LogoutServlet extends HttpServlet { public LogoutServlet() { super(); } @Override public void destroy() { super.destroy(); } @Override public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } @Override public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //清除session request.getSession().removeAttribute(Constants.USER_SESSION); response.sendRedirect(request.getContextPath()+"/login.jsp"); } @Override public void init() throws ServletException { } }
注册业务UserService
public boolean add(User user);
注册业务UserServiceImpl 实现类
@Override public boolean add(User user) { // TODO Auto-generated method stub boolean flag = false; Connection connection = null; try { connection = BaseDao.getConnection(); connection.setAutoCommit(false);//开启JDBC事务管理 int updateRows = userDao.add(connection,user); connection.commit(); if(updateRows > 0){ flag = true; System.out.println("add success!"); }else{ System.out.println("add failed!"); } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); try { System.out.println("rollback=================="); connection.rollback(); } catch (SQLException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } }finally{ //在service层进行connection连接的关闭 BaseDao.closeResource(connection, null, null); } return flag; }
注册业务UserDao接口
public int add(Connection connection, User user)throws Exception;
注册业务UserDaoImpl实现类
@Override public int add(Connection connection, User user) throws Exception { // TODO Auto-generated method stub PreparedStatement pstm = null; int updateRows = 0; if(null != connection){ String sql = "insert into smbms_user (userCode,userName,userPassword," + "userRole,gender,birthday,phone,address,creationDate,createdBy) " + "values(?,?,?,?,?,?,?,?,?,?)"; Object[] params = {user.getUserCode(),user.getUserName(),user.getUserPassword(), user.getUserRole(),user.getGender(),user.getBirthday(), user.getPhone(),user.getAddress(),user.getCreationDate(),user.getCreatedBy()}; updateRows = BaseDao.execute(connection, pstm, sql, params); BaseDao.closeResource(null, pstm, null); } return updateRows; }
112、注册业务请求创建RegisterServlet
public class RegisterServlet extends HttpServlet { @Override public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } @Override public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //获取用户名和密码 String userCode = request.getParameter("userCode"); String userPassword = request.getParameter("userPassword"); String userPasswordNew = request.getParameter("userPasswordNew"); System.out.println(userPasswordNew); User user = new User(); user.setUserCode(userCode); user.setUserName(userCode); user.setUserPassword(userPassword); user.setBirthday(new Date()); user.setCreationDate(new Date()); UserService userService = new UserServiceImpl(); if(userService.add(user)){ response.sendRedirect("login.jsp"); } } }
web.xml配置登入页面
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
11、登入页面login.jsp 在webapp文件夹下创建jsp目录 和项目的静态资源
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>系统登录 - 超市订单管理系统</title>
<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath }/css/style.css" />
<script type="text/javascript">
/* if(top.location!=self.location){
top.location=self.location;
} */
</script>
</head>
<body class="login_bg">
<section class="loginBox">
<header class="loginHeader">
<h1>超市订单管理系统</h1>
</header>
<section class="loginCont">
<form class="loginForm" action="${pageContext.request.contextPath }/login.do" name="actionForm" id="actionForm" method="post" >
<div class="info">${error}</div>
<div class="inputbox">
<label for="userCode">用户名：</label>
<input type="text" class="input-text" id="userCode" name="userCode" placeholder="请输入用户名" required/>
</div>
<div class="inputbox">
<label for="userPassword">密码：</label>
<input type="password" id="userPassword" name="userPassword" placeholder="请输入密码" required/>
</div>
<div class="subBtn">
<input type="submit" value="登录"/>
<input type="reset" value="重置"/>
<a href="${pageContext.request.contextPath }/jsp/register.jsp">注册</a>
</div>
</form>
</section>
</section>
</body>
</html>
11、注册页面 register.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>系统用户注册</title>
<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath }/css/style.css" />
<script type="text/javascript"></script>
</head>
<body class="login_bg">
<section class="loginBox">
<header class="loginHeader">
<h1>用户注册</h1>
</header>
<section style="width: 350px;height: 250px;margin: 0 auto;">
<form style="width: 400px;" action="${pageContext.request.contextPath }/register.do" name="actionForm" id="actionForm" method="post" >
<div class="info">${error}</div>
<div class="inputbox">
<label for="userCode">输入用户：</label>
<input type="text" class="input-text" id="userCode" name="userCode" placeholder="请输入用户名" required/>
</div>
<div class="inputbox">
<label for="userPassword">设置密码：</label>
<input type="password" id="userPassword" name="userPassword" placeholder="请输入密码" required/>
</div>
<div class="inputbox">
<label for="userPasswordNew">确定密码：</label>
<input type="password" id="userPasswordNew" name="userPasswordNew" placeholder="请输入新密码" required/>
</div>
<div style="text-align: center">
<input type="submit" value="立即注册"/>
<input type="reset" value="重置"/>
</div>
</form>
</section>
</section>
</body>
</html>
11.7、首页 jsp/frame.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@include file="/jsp/common/head.jsp"%> <div class="right"> <img class="wColck" src="${pageContext.request.contextPath }/images/clock.jpg" alt=""/> <div class="wFont"> <h2>${userSession.userName }</h2> <p>欢迎来到超市订单管理系统!</p> </div> </div> </section> <%@include file="/jsp/common/foot.jsp" %>
11.7、jsp文件夹下创建common 然后创建foot.jsp 首页底部 、head.jsp首页的头部
jsp/common/foot.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <footer class="footer"> 超市订单管理系统 </footer> <script type="text/javascript" src="${pageContext.request.contextPath }/js/time.js"></script> <script type="text/javascript" src="${pageContext.request.contextPath }/js/jquery-1.8.3.min.js"></script> <script type="text/javascript" src="${pageContext.request.contextPath }/js/common.js"></script> <script type="text/javascript" src="${pageContext.request.contextPath }/calendar/WdatePicker.js"></script> </body> </html>
jsp/common/head.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %> <!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title>超市订单管理系统</title> <link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath }/css/style.css" /> <link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath }/css/public.css" /> </head> <body> <!--头部--> <header class="publicHeader"> <h1>超市订单管理系统</h1> <div class="publicHeaderR"> <p><span>下午好！</span><span style="color: #fff21b"> ${userSession.userName }</span> , 欢迎你！</p> <a href="${pageContext.request.contextPath }/jsp/logout.do">退出</a> </div> </header> <!--时间--> <section class="publicTime"> <span id="time">2015年1月1日 11:11 星期一</span> <a href="#">温馨提示：为了能正常浏览，请使用高版本浏览器！（IE10+）</a> </section> <!--主体内容--> <section class="publicMian "> <div class="left"> <h2 class="leftH2"><span class="span1"></span>功能列表 <span></span></h2> <nav> <ul class="list"> <li ><a href="${pageContext.request.contextPath }/jsp/bill.do?method=query">订单管理</a></li> <li><a href="${pageContext.request.contextPath }/jsp/provider.do?method=query">供应商管理</a></li> <li><a href="${pageContext.request.contextPath }/jsp/user.do?method=query">用户管理</a></li> <li><a href="${pageContext.request.contextPath }/jsp/pwdmodify.jsp">密码修改</a></li> <li><a href="${pageContext.request.contextPath }/jsp/logout.do">退出系统</a></li> </ul> </nav> </div> <input type="hidden" id="path" name="path" value="${pageContext.request.contextPath }"/> <input type="hidden" id="referer" name="referer" value="<%=request.getHeader("Referer")%>"/>
11.8、配置web.xml文件 配置Servlet映射
<!-- 注册Servlet开始 -->
<servlet>
<servlet-name>LoginServlet</servlet-name>
<servlet-class>com.edwin.servlet.LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/login.do</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>LogoutServlet</servlet-name>
<servlet-class>com.edwin.servlet.LogoutServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LogoutServlet</servlet-name>
<url-pattern>/jsp/logout.do</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>RegisterServlet</servlet-name>
<servlet-class>com.edwin.servlet.RegisterServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>RegisterServlet</servlet-name>
<url-pattern>/register.do</url-pattern>
</servlet-mapping>
<!-- 注册Servlet开始 -->
<filter>
<filter-name>CharacterEncoding</filter-name>
<filter-class>com.edwin.filter.CharacterEncoding</filter-class>
</filter>
<filter-mapping>
<filter-name>CharacterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>SysFilter</filter-name>
<filter-class>com.edwin.filter.SysFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>SysFilter</filter-name>
<url-pattern>/jsp/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
浙公网安备 33010602011771号