ssm搭建,并附带源码,源码仅供学习,希望能帮助大家,有自动生成代码的操作哦!!!
来源:互联网 发布:iapp 免杀源码 编辑:程序博客网 时间:2024/06/06 14:29
最近在网上下载一个开源的源码,发现他是用ssm写的,来兴致了,我也自己搭建一个简单的ssm框架,希望对于刚接触Java的学生们有所帮助。
完成后的样子。先详细讲一下。
1、基本概念
1.1、Spring
1.2、SpringMVC
Spring MVC属于SpringFrameWork的后续产品,已经融合在Spring Web Flow里面。Spring MVC 分离了控制器、模型对象、分派器以及处理程序对象的角色,这种分离让它们更容易进行定制。1.3、MyBatis
MyBatis 本是apache的一个开源项目iBatis, 2010年这个项目由apache software foundation 迁移到了google code,并且改名为MyBatis 。MyBatis是一个基于Java的持久层框架。iBATIS提供的持久层框架包括SQL Maps和Data Access Objects(DAO)MyBatis 消除了几乎所有的JDBC代码和参数的手工设置以及结果集的检索。MyBatis 使用简单的 XML或注解用于配置和原始映射,将接口和 Java 的POJOs(Plain Old Java Objects,普通的 Java对象)映射成数据库中的记录
使用Maven管理项目
使用Maven在Eclipse中创建一个webapp的项目 ,具体的创建过程不做演示,如有不会创建的
也可以使用Maven命令进行创建,在Dos窗口进入指定的目录,执行下面命令:
mvn archetype:create -DgroupId=org.ssm.dufy -DartifactId=ssm-demo -DarchetypeArtifactId=maven-archetype-webapp -DinteractiveMode=false
使用命令要注意,系统安装了Maven,并配置好了环境变量!
1.导入项目(命名创建),添加依赖
导入项目是IDE中,或者直接在IDE创建,一般默认有【src/main/java】,手动创建【src/test/resources】、【src/test/java】文件夹。
如下项目结构:
然后直接配置 pom.xml文件中的包依赖!
<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>org.dufy</groupId>
<artifactId>ssm</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>ssmDemo</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>4.0.5.RELEASE</spring.version>
<mybatis.version>3.2.1</mybatis.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<mysql.version>5.1.35</mysql.version>
</properties>
<dependencies>
<!-- 添加Spring依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<!--spring单元测试依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
<!-- spring webmvc相关jar -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- mysql驱动包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- alibaba data source 相关jar包-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>0.2.23</version>
</dependency>
<!-- alibaba fastjson 格式化对 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.41</version>
</dependency>
<!-- logback start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>org.logback-extensions</groupId>
<artifactId>logback-ext-spring</artifactId>
<version>0.1.1</version>
</dependency>
<!--mybatis依赖 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- mybatis/spring包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.0</version>
</dependency>
<!-- 添加servlet3.0核心包 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.2-b01</version>
</dependency>
<!-- jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!--单元测试依赖 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>ssmDemo</finalName>
</build>
</project>
2.创建数据库和表,生成代码
创建数据库我参考别人的博客数据库设计,这块没有自己去书写,直接添上代码
CREATE TABLE `user_t` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`user_name` varchar(40) NOT NULL,
`password` varchar(255) NOT NULL,
`age` int(4) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
/*Data for the table `user_t` */
insert into `user_t`(`id`,`user_name`,`password`,`age`) values (1,'测试','sfasgfaf',24)
为了避免手误,下面看一下自动生成代码:
工具下载:链接: https://pan.baidu.com/s/1hrManI0 密码: wduq
生成代码所需要的jar包。
由于MyBatis属于一种半自动的ORM框架,所以主要的工作就是配置Mapping映射文件,但是由于手写映射文件很容易出错,所以可利用MyBatis生成器自动生成实体类、DAO接口和Mapping映射文件。这样可以省去很多的功夫,将生成的代码copy到项目工程中即可。
使用自动生成有很多方式,可以在eclipse中安装插件,但是以下将要介绍的这种方式我认为很轻松,最简单,不需要装插件,只需要下几个jar包即可,把它们放在一个目录下面。
其中有mybatis框架的jar包,数据库驱动程序jar包以及MyBatis生成器jar包。其中的generatorConfig.xml是需要我们来配置的文件,配置如下:
想创建哪个就写哪个
这样在生成之后,就可以在src目录下找到相应的文件夹,每个表格都会对应三个文件(实体类、接口、配置文件)。
生成的代码导入图片解释:
将生成的代码拷贝到项目中,然后进行Spring和Mybatis的整合,添加配置文件!
主要介绍applicationContext.xml、Spring-mhbatis.xml、jdbc.properties。主要内容如下:
jdbc.properties
jdbc_driverClassName =com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/mybatis1?useUnicode=true&characterEncoding=utf8
jdbc_username=root
jdbc_password=root
用户名密码根据自己的数据库的来。
applicationContext.xml
<?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/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/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
">
<!-- 1.配置jdbc文件 -->
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations" value="classpath:jdbc.properties"/>
</bean>
<!-- 2.扫描的包路径,这里不扫描被@Controller注解的类 --><!--使用<context:component-scan/> 可以不在配置<context:annotation-config/> -->
<context:component-scan base-package="org.ssm.dufy">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<import resource="classpath:spring-mybatis.xml" />
</beans>
spring-mybatis.xml
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<!-- 3.配置数据源 ,使用的alibba的数据库-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
<!-- 基本属性 url、user、password -->
<property name="driverClassName" value="${jdbc_driverClassName}"/>
<property name="url" value="${jdbc_url}"/>
<property name="username" value="${jdbc_username}"/>
<property name="password" value="${jdbc_password}"/>
<!-- 配置初始化大小、最小、最大 -->
<property name="initialSize" value="10"/>
<property name="minIdle" value="10"/>
<property name="maxActive" value="50"/>
<!-- 配置获取连接等待超时的时间 -->
<property name="maxWait" value="60000"/>
<!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="60000" />
<!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="300000" />
<property name="validationQuery" value="SELECT 'x'" />
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<!-- 打开PSCache,并且指定每个连接上PSCache的大小 如果用Oracle,则把poolPreparedStatements配置为true,mysql可以配置为false。-->
<property name="poolPreparedStatements" value="false" />
<property name="maxPoolPreparedStatementPerConnectionSize" value="20" />
<!-- 配置监控统计拦截的filters -->
<property name="filters" value="wall,stat" />
</bean>
<!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- 自动扫描mapping.xml文件 -->
<property name="mapperLocations" value="classpath:org/ssm/dufy/mapper/*.xml"></property>
</bean>
<!-- DAO接口所在包名,Spring会自动查找其下的类 ,自动扫描了所有的XxxxMapper.xml对应的mapper接口文件,只要Mapper接口类和Mapper映射文件对应起来就可以了-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="org.ssm.dufy.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<!-- 配置事务管理器 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!--======= 事务配置 End =================== -->
<!-- 配置基于注解的声明式事务 -->
<!-- enables scanning for @Transactional annotations -->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.ssm.dufy.entity.User;
/**
* 配置spring和junit整合,junit启动时加载springIOC容器 spring-test,junit
*/
@RunWith(SpringJUnit4ClassRunner.class)
// 告诉junit spring配置文件
@ContextConfiguration({ "classpath:applicationContext.xml"})
public class IUserServiceTest {
@Autowired
public IUserService userService;
@Test
public void getUserByIdTest(){
User user = userService.getUserById(1);
System.out.println(user.getUserName());
}
}
package org.ssm.dufy.service;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.ssm.dufy.entity.User;
public class IUserServiceTest2 {
public static void main(String[] args) {
ApplicationContext application = new ClassPathXmlApplicationContext("applicationContext.xml");
IUserService uService = (IUserService) application.getBean("userService");
User user = uService.getUserById(1);
System.out.println(user.getUserName());
}
}
整合SpringMVC,添加配置,创建jsp
SpringMVC需要的依赖在pom.xml中已经加上了,现在需在Web项目中的web.xml中添加启动SpringMVC启动配置和Spring整合SpringMVC的配置了。
新增如下两个文件:
项目配置ok!
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.model.User;
import com.service.UserService;
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("/findAllUser")
public String findAllUser(HttpServletRequest request){
List<User> listUser = userService.findAllUser();
request.setAttribute("listUser", listUser);
return "/allUser";
}
@RequestMapping("/addUser")
public String addUser(HttpServletRequest request,String username,String age){
User user = new User();
user.setAge(age);
user.setUsername(username);
System.out.println("addUser====="+user.getAge());
//查询出来最终的结果
int flag = userService.addUser(user);
List<User> listUser = userService.findAllUser();
request.setAttribute("listUser", listUser);
return "/allUser";
}
@RequestMapping("/delUser")
public String deleteUser(HttpServletRequest request,int id ){
System.out.println("id="+id);
int flag = userService.deleteUser(id);
List<User> listUser = userService.findAllUser();
request.setAttribute("listUser", listUser);
return "/allUser";
}
}
jsp 的样子
allUser.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>ssm</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">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<table border="1">
<tbody>
<tr>
<%-- <td><a href="<%=basePath%>user/addUser">增加</a></td> --%>
<td><a href="<%=basePath%>user/delUser">删除</a></td>
</tr>
<tr>
<form action="<%=basePath%>user/addUser" method="post">
用户名: <input name="username" type="text" /> <br> 密码: <input
name="age" type="text" /><br> <input type="submit"
value="增加" />
</form>
</tr>
<tr>
<th>id</th>
<th>姓名</th>
<th>年龄</th>
<th>操作</th>
</tr>
<c:if test="${!empty listUser }">
<c:forEach items="${listUser}" var="list">
<tr>
<td>${list.id }</td>
<td>${list.username }</td>
<td>${list.age }</td>
<td><a href="<%=basePath%>user/delUser?id=${list.id }">删除</a></td>
</tr>
</c:forEach>
</c:if>
</tbody>
</table>
</body>
</html>