资源下载:https://download.csdn.net/download/weixin_44893902/45603211
练习点设计: 模糊查询、删除、新增
一、语言和环境
- 实现语言:JAVA语言。
- 环境要求:MyEclipse/Eclipse + Tomcat + MySql。
- 使用技术:
Jsp
+Servle
t+JavaBean
或SpringMVC
+Spring
+Mybatis
。
二、实现功能
随着数字化信息的发展,现需要制作学生信息管理系统,主要功能如下:
1.首页默认显示所有学生信息,如图1所示。
2.鼠标悬停某行数据时,以线性过渡动画显示光棒效果,如图2所示。
3.用户输入学生名称,点击查询,则完成模糊查询,显示查询结果,如图3所示。
4.用户点击删除,则弹出提示框,用户点击确定后,删除选中数据并显示最新数据,如图4和图5所示。
5.用户点击“新增”按钮,则打开新增页面,填写完相关信息后点击新增按钮,增加学生信息数据到数据库,且页面跳转到列表页面展示最新数据,如图6和图7所示。
三、 数据库设计
1.创建数据库(stu_db
)。
2.创建数据表(student
),结构如下。
字段名 | 说明 | 字段类型 | 长度 | 备注 |
---|---|---|---|---|
id | 编号 | int | 主键,自增 | |
name | 学生姓名 | varchar | 50 | 不能为空 |
age | 年龄 | int | 不能为空 | |
classes | 班级名称 | varchar | 50 | 不能为空 |
birth | 出生日期 | date | 不能为空 |
四、推荐实现步骤
1.SSM版本的实现步骤如下:
(1)创建数据库和数据表,添加测试数据(至少添加4条测试数据)。
(2)创建Web工程并创建各个包,导入工程所需的jar文件。
(3)添加相关SSM框架支持。
(4)配置项目所需要的各种配置文件(mybatis配置文件、spring配置文件、springMVC配置文件)。
(5)创建实体类。
(6)创建MyBatis操作数据库所需的Mapper接口及其Xml映射数据库操作语句文件。
(7)创建业务逻辑相应的接口及其实现类,实现相应的业务,并在类中加入对DAO/Mapper的引用和注入。
(8)创建Controller控制器类,在Controller中添加对业务逻辑类的引用和注入,并配置springMVC配置文件。
(9)创建相关的操作页面,并使用CSS对页面进行美化。
(10)实现页面的各项操作功能,并在相关地方进行验证,操作要人性化。
(11)调试运行成功后导出相关的数据库文件并提交。
五、实现代码
1、MySQL数据库
stu_db.sql
2、项目Java代码
目录结构
student
JAR包:
src
com.controller
StudentController.java
package com.controller;
import java.util.List;
import javax.annotation.Resource;
import org.apache.ibatis.annotations.Param;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.dao.StudentMapper;
import com.entity.Student;
import com.service.StudentService;
@Controller
public class StudentController {
@Resource
StudentService service;
@RequestMapping("/selectStudent")
public ModelAndView selectStudent(String keyword) {
List<Student> studentList=service.selectAll(keyword);
if (keyword==null||keyword.trim().equals("")) {
keyword="";
}
System.out.println("123456");
ModelAndView modelAndView = new ModelAndView();
modelAndView.addObject("studentList", studentList);
modelAndView.setViewName("student");
return modelAndView;
}
@RequestMapping("/delStudent")
public String delStudent(int id) {
int del=service.delStudent(id);
return "redirect:/selectStudent.do";
}
@RequestMapping("/jumpInsert")
public String jumpInsert() {
return "addStudent";
}
@RequestMapping("/insertStudent")
public String insertStudent(Student student) {
int add=service.insertStudent(student);
return "redirect:/selectStudent.do";
}
}
com.dao
StudentMapper.java
package com.dao;
import com.entity.Student;
import java.util.List;
public interface StudentMapper {
int deleteByPrimaryKey(Integer id);
int insert(Student record);
Student selectByPrimaryKey(Integer id);
List<Student> selectAll();
int updateByPrimaryKey(Student record);
List<Student> likeSelect(String keyword);
}
StudentMapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.dao.StudentMapper" >
<resultMap id="BaseResultMap" type="com.entity.Student" >
<id column="id" property="id" jdbcType="INTEGER" />
<result column="name" property="name" jdbcType="VARCHAR" />
<result column="age" property="age" jdbcType="INTEGER" />
<result column="classes" property="classes" jdbcType="VARCHAR" />
<result column="birth" property="birth" jdbcType="VARCHAR" />
</resultMap>
<delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
delete from student
where id = #{id,jdbcType=INTEGER}
</delete>
<insert id="insert" parameterType="com.entity.Student" >
insert into student (id, name, age,
classes, birth)
values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{age,jdbcType=INTEGER},
#{classes,jdbcType=VARCHAR}, #{birth,jdbcType=VARCHAR})
</insert>
<update id="updateByPrimaryKey" parameterType="com.entity.Student" >
update student
set name = #{name,jdbcType=VARCHAR},
age = #{age,jdbcType=INTEGER},
classes = #{classes,jdbcType=VARCHAR},
birth = #{birth,jdbcType=VARCHAR}
where id = #{id,jdbcType=INTEGER}
</update>
<select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
select id, name, age, classes, birth
from student
where id = #{id,jdbcType=INTEGER}
</select>
<select id="selectAll" resultMap="BaseResultMap" >
select id, name, age, classes, birth
from student
</select>
<select id="likeSelect" resultMap="BaseResultMap" >
select id, name, age, classes, birth
from student where `name` LIKE "%"#{name}"%"
</select>
</mapper>
com.entity
Student.java
package com.entity;
public class Student {
private Integer id;
private String name;
private Integer age;
private String classes;
private String birth;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name == null ? null : name.trim();
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getClasses() {
return classes;
}
public void setClasses(String classes) {
this.classes = classes == null ? null : classes.trim();
}
public String getBirth() {
return birth;
}
public void setBirth(String birth) {
this.birth = birth == null ? null : birth.trim();
}
}
com.generator
Generator.java
package com.generator;
import java.io.IOException;
import java.io.InputStream;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.exception.InvalidConfigurationException;
import org.mybatis.generator.exception.XMLParserException;
import org.mybatis.generator.internal.DefaultShellCallback;
public class Generator {
/*
* targetRuntime="MyBatis3Simple", 不生成Example
*/
public void generateMyBatis() {
//MBG执行过程中的警告信息
List<String> warnings = new ArrayList<String>();
//当生成的代码重复时,覆盖原代码
boolean overwrite = true ;
//String generatorFile = "/generator/generatorConfig.xml";
String generatorFile = "/generatorConfig.xml";
//读取MBG配置文件
InputStream is = Generator.class.getResourceAsStream(generatorFile);
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config;
try {
config = cp.parseConfiguration(is);
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
//创建MBG
MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
//执行生成代码
myBatisGenerator.generate(null);
} catch (IOException e) {
e.printStackTrace();
} catch (XMLParserException e) {
e.printStackTrace();
} catch (InvalidConfigurationException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
for (String warning : warnings) {
System.out.println(warning);
}
}
public static void main(String[] args) {
Generator generator = new Generator();
generator.generateMyBatis();
}
}
com.service
StudentService.java
package com.service;
import java.util.List;
import com.entity.Student;
public interface StudentService {
//查询
List<Student> selectAll(String keyword);
//删除
int delStudent(int id);
//添加
int insertStudent(Student student);
}
com.service.imp
StudentServiceImpl.java
package com.serviceImpl;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.dao.StudentMapper;
import com.entity.Student;
import com.service.StudentService;
@Service
public class StudentServiceImpl implements StudentService {
@Resource
StudentMapper mapper;
@Override
// 查询
public List<Student> selectAll(String keyword) {
if (keyword == null || keyword.trim().equals("")) {
List<Student> selectAll = mapper.selectAll();
return selectAll;
} else {
List<Student> likeSelect = mapper.likeSelect(keyword);
return likeSelect;
}
}
// 删除
@Override
public int delStudent(int id) {
int del = mapper.deleteByPrimaryKey(id);
return del;
}
// 添加
@Override
public int insertStudent(Student student) {
int insert = mapper.insert(student);
return insert;
}
}
mybatis
sqlMapConfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!-- 别名 -->
<typeAliases>
<package name="com.entity" />
</typeAliases>
</configuration>
spring
applicationContext-dao.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd ">
<!-- 指定spring容器读取db.properties文件 -->
<context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
<!-- 将连接池注册到bean容器中 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}"></property>
<property name="Url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
<!-- 配置SqlSessionFactory -->
<bean class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 设置MyBatis核心配置文件 -->
<property name="configLocation" value="classpath:mybatis/sqlMapConfig.xml" />
<!-- 设置数据源 -->
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 配置Mapper扫描 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 设置Mapper扫描包 -->
<property name="basePackage" value="com.dao" />
</bean>
<!-- 配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 开启注解方式管理AOP事务 -->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
applicationContext-service.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd ">
<!-- 配置Service扫描 -->
<context:component-scan base-package="com" />
</beans>
spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.2.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd ">
<!-- 配置Controller扫描 -->
<context:component-scan base-package="com.controller" />
<!-- 配置注解驱动 -->
<mvc:annotation-driven />
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 前缀 -->
<property name="prefix" value="/WEB-INF/jsp/" />
<!-- 后缀 -->
<property name="suffix" value=".jsp" />
</bean>
</beans>
generatorConfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<!-- 配置生成器 -->
<generatorConfiguration>
<context id="MySQLContext" targetRuntime="MyBatis3Simple"
defaultModelType="flat">
<!-- 配置前置分隔符和后置分隔符 -->
<property name="beginningDelimiter" value="`" />
<property name="endingDelimiter" value="`" />
<!-- 配置注释信息 -->
<commentGenerator>
<!-- 不生成注释 -->
<property name="suppressAllComments" value="true" />
<property name="suppressDate" value="true" />
<property name="addRemarkComments" value="true" />
</commentGenerator>
<!-- 数据库连接配置 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/stu_db" userId="root"
password="root">
</jdbcConnection>
<!-- targetPackage:生成实体类存放的包名, targetProject:指定目标项目路径,可以使用相对路径或绝对路径 -->
<javaModelGenerator targetPackage="com.entity"
targetProject="src">
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- 配置SQL映射器Mapper.xml文件的属性 -->
<sqlMapGenerator targetPackage="com.dao"
targetProject="src" />
<!-- type="XMLMAPPER":所有的方法都在XML中,接口调用依赖XML文件 -->
<javaClientGenerator targetPackage="com.dao" type="XMLMAPPER"
targetProject="src" />
<!-- 生成所有表的映射 -->
<table tableName="%"></table>
</context>
</generatorConfiguration>
jdbc.properties
jdbc.url=jdbc:mysql://localhost:3306/stu_db?useUnicode=true&characterEncoding=UTF-8&useSSL=false
jdbc.username=root
jdbc.password=123456
jdbc.driver=com.mysql.jdbc.Driver
WebContent
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>library.two</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!--spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext-*.xml</param-value>
</context-param>
<!-- 监听器,加载spring配置 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 前端控制器 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- 设置post请求的字符编码过滤器 -->
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
JSP
Home.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"
+request.getServerPort()+path;
%>
<html>
<head>
<meta charset="utf-8">
<title>学生信息管理系统</title>
</head>
<body>
<script type="text/javascript">
window.location.href="<%=basePath%>/selectStudent.do";
</script>
</body>
</html>
addStudent.jsp
<?xml version="1.0" encoding="UTF-8" ?>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title></title>
</head>
<body>
<div class="addMoot">
<form action="insertStudent.do" method="post">
<input type="hidden" name="id" value="${studentList.id}" />
<p class="add_title">录入新同学</p>
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<td>学生姓名:</td>
<td><input type="text" name="name" value="${student.name}"></td>
</tr>
<tr>
<td>年龄:</td>
<td><input type="text" name="age" value="${student.age}"></td>
</tr>
<tr>
<td>班级名称:</td>
<td><input type="text" name="classes"
value="${student.classes}"></td>
</tr>
<tr>
<td>生日:</td>
<td><input type="date" name="birth" value="${student.birth}"></td>
</tr>
<tr>
<td class="btn" colspan="2"><input class="button"
type="submit" value="新增" /> <input class="reset"
type="button" onclick="history.go(-1);" value="取消" /></td>
</tr>
</table>
</form>
</div>
</body>
</html>
student.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<head>
<meta charset="utf-8">
<title>学生信息管理系统</title>
</head>
<style type="text/css">
tr:hover {
background: orange;
}
</style>
<body>
<form action="">
<fieldset style="height: 60px">
<legend> 搜索</legend>
姓名:<input type="text" placeholder="请输入姓名搜索" name="keyword"
style="height: 25px;" />
<button type="submit">查询</button>
<button>
<a href="jumpInsert.do">新增</a>
</button>
</fieldset>
</form>
<table border="1px">
<tr>
<th>编号</th>
<th>学生姓名</th>
<th>年龄</th>
<th>班级名称</th>
<th>生日</th>
<th>操作</th>
</tr>
<c:forEach var="student" items="${studentList }" varStatus="item">
<tr>
<td>${student.id}</td>
<td>${student.name}</td>
<td>${student.age}</td>
<td>${student.classes}</td>
<td>${student.birth}</td>
<td><a onclick="del(${student.id})">删除</a></td>
</tr>
</c:forEach>
</table>
<div>
<span>共${studentList.size()}条数据</span>
</div>
<script type="text/javascript">
function del(id){
if(confirm("确认要删除吗?")){
return window.location.href="delStudent.do?id="+id;
}else {
return false;
}
}
</script>
</body>
</html>