SSM 框架快速整合实例--学生查询
一、快速准备
SSM 框架即 Spring 框架、SpringMVC 框架、MyBatis 框架，关于这几个框架的基础和入门程序，我前面已经写过几篇文章作为基础和入门介绍了。对于这 3 个框架还不熟悉的同学，可以参考一下几篇文章：
如果已经陆续学习过 SSM 框架相关知识的，可以忽略掉这一部分，直接看下面的内容。
二、快速创建项目
鉴于 jar 包依赖于管理的方便，我们使用 Maven 进行项目的管理和开发，所以这一步我们使用 IDEA 快速创建一个 Maven 项目，关于如何使用 IDEA 快速创建 Maven 项目，这里就不进行过多赘述了，大家可以参考下面这篇文章：
三、快速配置 jar 包依赖
Maven 项目创建完成后，快速打开并配置 pom.xml 文件，具体配置如下：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.ssm.example</groupId>
<artifactId>SsmDemo</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>SSMDemo Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<!-- 配置 SpringMVC 依赖包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<!-- Spring JDBC 依赖包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<!-- Spring AOP 依赖包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<!--MyBatis 依赖包-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.2</version>
</dependency>
<!-- Spring 整合 MyBatis 依赖包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.1</version>
</dependency>
<!-- MySQL 驱动依赖包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.41</version>
</dependency>
<!-- C3P0 数据源依赖包 -->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1</version>
</dependency>
<!-- jstl 依赖包 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- ServletAPI 依赖包-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<!-- junit 测试依赖包 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
</dependency>
</dependencies>
<!-- 如果不添加此节点，mybatis 的 mapper.xml 文件都会被漏掉 -->
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
</project>
四、快速配置编码过滤和资源加载
打开 web.xml 文件，快速配置开启 Spring 、SpringMVC 编码过滤以及静态资源加载，具体配置代码如下：
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!-- 启动Spring的容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- SpringMVC的前端控制器，拦截所有请求 -->
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 字符编码过滤器，一定要放在所有过滤器之前 -->
<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>
<init-param>
<param-name>forceRequestEncoding</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 加载静态资源 -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.js</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.css</url-pattern>
</servlet-mapping>
</web-app>
五、快速配置 Spring 配置文件
在 resources 文件夹下新建 applicationContext.xml 文件，配置 MyBatis 和数据库相关信息，具体代码配置如下：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<!-- 加载资源文件 -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 配置 C3P0 数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="user" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="driverClass" value="${jdbc.driverClass}"></property>
<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
<property name="initialPoolSize" value="5"></property>
<property name="maxPoolSize" value="10"></property>
</bean>
<!-- 配置 MyBatis SqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 指定 MyBatis 数据源 -->
<property name="dataSource" ref="dataSource"/>
<!-- 指定 MyBatis mapper 映射文件位置 -->
<property name="mapperLocations" value="classpath:com/ssm/example/dao/*.xml"/>
<!-- 指定 MyBatis 全局配置文件的位置 -->
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
</bean>
<!-- 扫描 MyBatis 的 mapper 接口 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--扫描所有 dao 接口，加入到 IOC 容器中 -->
<property name="basePackage" value="com.ssm.example.dao"/>
</bean>
<!-- 配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 指定数据源 -->
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 配置事务增强 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 配置所有方法都是事务方法 -->
<tx:method name="*"/>
<tx:method name="get*" read-only="true"/>
</tx:attributes>
</tx:advice>
<!-- 开启基于注解的事务 -->
<aop:config>
<!-- 切入点表达式 -->
<aop:pointcut expression="execution(* com.ssm.example.service.impl.*.*(..))" id="txPoint"/>
<!-- 配置事务增强 -->
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/>
</aop:config>
</beans>
六、快速配置数据库连接信息
在 resources 文件夹下新建 db.properties 文件，配置数据库连接相关信息，具体代码配置如下：
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/ssm_example?useUnicode=true&characterEncoding=UTF-8
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=root
七、快速配置数据库操作辅助信息
在 resources 文件夹下新建 mybatis-config.xml 文件，配置相关的数据库操作辅助信息，具体代码配置如下：
<?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>
<settings>
<!-- 打印SQL-->
<setting name="logImpl" value="STDOUT_LOGGING" />
</settings>
<typeAliases>
<!-- 指定一个包名，MyBatis会在包名下搜索需要的JavaBean-->
<package name="com.ssm.example.entity"/>
</typeAliases>
</configuration>
八、快速配置 SpringMVC 注解扫描和视图解析器
在 resources 文件夹下新建 springmvc.xml 文件，配置相关的数据库操作辅助信息，具体代码配置如下：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!-- 启用 SpringMVC 注解驱动 -->
<mvc:annotation-driven />
<!-- 扫描业务代码 -->
<context:component-scan base-package="com.ssm.example"></context:component-scan>
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
九、快速新建数据表
新建 MySQL 数据库，快速新建数据表 ssm_example，具体建表代码如下：
DROP TABLE IF EXISTS `student`;
CREATE TABLE `student` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`gender` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`email` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`tel` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`cla` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 6 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;
INSERT INTO `student` VALUES (1, ‘孔乙己‘, ‘男‘, ‘[email protected]‘, ‘13509856897‘, ‘计算机1班‘);
INSERT INTO `student` VALUES (2, ‘阿强‘, ‘女‘, ‘[email protected]‘, ‘12345678909‘, ‘软件工程‘);
INSERT INTO `student` VALUES (3, ‘阿福‘, ‘男‘, ‘[email protected]‘, ‘13657898762‘, ‘数学专业‘);
INSERT INTO `student` VALUES (4, ‘阿霞‘, ‘女‘, ‘[email protected]‘, ‘12378645987‘, ‘英语专业‘);
INSERT INTO `student` VALUES (5, ‘指南者‘, ‘男‘, ‘[email protected]‘, ‘13587690873‘, ‘打杂搬砖专业‘);
SET FOREIGN_KEY_CHECKS = 1;
十、快速新建实体类
快速新建实体类 Student.java，具体代码如下：
package com.ssm.example.entity;
public class Student {
private int id;
private String name;
private String gender;
private String email;
private String tel;
private String cla;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getTel() {
return tel;
}
public void setTel(String tel) {
this.tel = tel;
}
public String getCla() {
return cla;
}
public void setCla(String cla) {
this.cla = cla;
}
}
十一、快速书写业务代码
快速新建 StuentController.java 控制类，具体代码如下：
package com.ssm.example.controller;
import java.util.List;
import com.ssm.example.entity.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.ssm.example.service.StudentService;
@Controller
public class StudentController {
@Autowired
private StudentService studentService;
/**
* 查找所有学生
* @return
*/
@RequestMapping(value="/findAll")
public ModelAndView test(){
List<Student> list = studentService.findAll();
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("index");
modelAndView.addObject("list", list);
return modelAndView;
}
}
快速新建 StudentService.java 接口，代码如下：
package com.ssm.example.service;
import java.util.List;
import com.ssm.example.entity.Student;
public interface StudentService {
public List<Student> findAll();
}
快速新建 StudentServiceImpl.java 类实现接口，具体代码如下：
package com.ssm.example.service.impl;
import java.util.List;
import com.ssm.example.dao.StudentDAO;
import com.ssm.example.entity.Student;
import com.ssm.example.service.StudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class StudentServiceImpl implements StudentService {
@Autowired
private StudentDAO studentDAO;
public List<Student> findAll() {
// TODO Auto-generated method stub
return studentDAO.findAll();
}
}
快速新建 dao 接口 StudentDAO.java，具体代码如下：
package com.ssm.example.dao;
import java.util.List;
import com.ssm.example.entity.Student;
public interface StudentDAO {
public List<Student> findAll();
}
快速新建 dao 接口代理文件 StudentDAO.xml，具体代码如下：
<?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.ssm.example.dao.StudentDAO">
<resultMap type="Student" id="studentMap">
<id property="id" column="id"/>
<result property="name" column="name"/>
<result property="gender" column="gender"/>
<result property="email" column="email"/>
<result property="tel" column="tel"/>
<result property="cla" column="cla"/>
</resultMap>
<select id="findAll" resultMap="studentMap">
select * from student
</select>
</mapper>
十二、新建访问页面
快速新建访问页面 index.jsp，并且页面使用 bootstrap 框架作轻度渲染，具体代码如下：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page isELIgnored="false" %>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>学生列表</title>
<link rel="stylesheet" href="${pageContext.request.contextPath}/static/bootstrap-3.3.7-dist/css/bootstrap.min.css">
</head>
<body>
<br><br><br>
<div class="container" align="center">
<div class="row">
<div class="col-md-12">
<h1>SSM 框架快速整合实例--学生查询</h1>
</div>
</div>
<br>
<div class="row">
<div class="col-md-12">
<table class="table table-hover" id="emps_table">
<thead>
<tr>
<th>
<input type="checkbox" id="check_all"/>
</th>
<th>编号</th>
<th>姓名</th>
<th>性别</th>
<th>电子邮箱</th>
<th>联系电话</th>
<th>班级</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${list }" var="student">
<tr>
<td><input type=‘checkbox‘ class=‘check_item‘/></td>
<td>${student.id }</td>
<td>${student.name }</td>
<td>${student.gender }</td>
<td>${student.email }</td>
<td>${student.tel }</td>
<td>${student.cla }</td>
<td>
<button class="btn btn-primary btn-sm edit_btn">
<span class="glyphicon glyphicon-pencil">编辑</span>
</button>
<button class="btn btn-danger btn-sm delete_btn">
<span class="glyphicon glyphicon-trash">删除</span>
</button>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
</div>
</body>
</html>
十三、快速进行测试
到这里，SSM 框架整合程序就已经书写完毕，部署并启动 Tomcat 服务器，然后到浏览器地址栏测试，结果如下：
项目源码地址：点击这里直接获取源码
原文地址：https://www.cnblogs.com/Jayxiang/p/9020026.html
时间： 2024-08-02 00:37:24