总结了在网上看到的几篇ssm教程,希望有一份自己自己的框架能够随时使用,并且是最简单的。所以在这里没有附加上log4j和junit,需要的同学可衣看其他教程,我这边就是要搭建一个最简单的ssm项目,方便以后能够再次基础上面进行扩展
当然,前提是要会使用maven,与本篇博客无关,就不说了。采用idea,因为idea越来越成为主流了。
具体步骤:
1、搭建maven项目
之后等待一会,maven会去获取一些基础包。
完成以后:
我们需要在src目录下面新建java文件夹,并且标记为资源文件夹
之后在这个基础上进行搭建,这是我搭建完成后的图:
2、配置一个tomcat:
右边是输入项目名的地方,最后访问需要用到。
3、
<project xmlns="/POM/4.0.0" xmlns:xsi="http:///2001/XMLSchema-instance"
xsi:schemaLocation="/POM/4.0.0 /maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>SSMCreater</groupId>
<artifactId></artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name> Maven Webapp</name>
<url></url>
<properties>
<>UTF-8</>
<>UTF-8</>
<!-- spring版本号 -->
<>4.2.</>
<!-- mybatis版本号 -->
<>3.2.8</>
<!-- mysql驱动版本号 -->
<>5.1.29</>
</properties>
<dependencies>
<!-- 添加spring核心依赖 -->
<dependency>
<groupId></groupId>
<artifactId>spring-core</artifactId>
<version>${}</version>
</dependency>
<dependency>
<groupId></groupId>
<artifactId>spring-web</artifactId>
<version>${}</version>
</dependency>
<dependency>
<groupId></groupId>
<artifactId>spring-oxm</artifactId>
<version>${}</version>
</dependency>
<dependency>
<groupId></groupId>
<artifactId>spring-tx</artifactId>
<version>${}</version>
</dependency>
<dependency>
<groupId></groupId>
<artifactId>spring-jdbc</artifactId>
<version>${}</version>
</dependency>
<dependency>
<groupId></groupId>
<artifactId>spring-webmvc</artifactId>
<version>${}</version>
</dependency>
<dependency>
<groupId></groupId>
<artifactId>spring-context</artifactId>
<version>${}</version>
</dependency>
<dependency>
<groupId></groupId>
<artifactId>spring-context-support</artifactId>
<version>${}</version>
</dependency>
<dependency>
<groupId></groupId>
<artifactId>spring-aop</artifactId>
<version>${}</version>
</dependency>
<dependency>
<groupId></groupId>
<artifactId>spring-test</artifactId>
<version>${}</version>
</dependency>
<!-- 添加mybatis依赖 -->
<dependency>
<groupId></groupId>
<artifactId>mybatis</artifactId>
<version>${}</version>
</dependency>
<!-- 添加mybatis/spring整合包依赖 -->
<dependency>
<groupId></groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 添加mysql驱动依赖 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${}</version>
</dependency>
<!-- 添加数据库连接池依赖 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 导入dbcp的jar包,用来在中配置数据库 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.2.2</version>
</dependency>
<!-- JSTL标签类 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
<build>
<finalName></finalName>
</build>
</project>
这边提一点,maven下载慢的同学,估计用的是国外地址,百度一下阿里的maven镜像地址,跟着做就好了,速度一下就上去了。
4、driverClasss=
jdbcUrl=jdbc:mysql://localhost:3306/world?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull
username=root
password=root
#定义初始连接数
initialSize=0
#定义最大连接数
maxActive=20
#定义最大空闲
maxIdle=20
#定义最小空闲
minIdle=1
#定义最长等待时间
maxWait=60000
如果复制上面的,每行后面可能会有空格,记得删除。
5、
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="/schema/beans"
xmlns:xsi="http:///2001/XMLSchema-instance" xmlns:p="/schema/p"
xmlns:context="/schema/context"
xmlns:mvc="/schema/mvc"
xsi:schemaLocation="/schema/beans
/schema/beans/spring-beans-4.
/schema/context
/schema/context/spring-context-4.
/schema/mvc
/schema/mvc/spring-mvc-4.">
<!-- 自动扫描 @Controller-->
<context:component-scan base-package=""/>
<!-- 定义跳转的文件的前后缀 ,视图模式配置 -->
<bean class="">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp"/>
</bean>
</beans>
6、
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="/schema/beans"
xmlns:xsi="http:///2001/XMLSchema-instance"
xmlns:context="/schema/context" xmlns:tx="/schema/tx"
xsi:schemaLocation="/schema/beans
/schema/beans/spring-beans-3.
/schema/context
/schema/context/spring-context-3.
/schema/tx
/schema/tx/">
<!-- 自动扫描 -->
<context:component-scan base-package=""/>
<!--加载配置文件-->
<bean class="">
<property name="location" value="classpath:"/>
</bean>
<!-- 配置数据源 -->
<bean class=""
destroy-method="close">
<property name="driverClassName" value="${driverClasss}"/>
<property name="url" value="${jdbcUrl}"/>
<property name="username" value="${username}"/>
<property name="password" value="${password}"/>
<!-- 初始化连接大小 -->
<property name="initialSize" value="${initialSize}"></property>
<!-- 连接池最大数量 -->
<property name="maxActive" value="${maxActive}"></property>
<!-- 连接池最大空闲 -->
<property name="maxIdle" value="${maxIdle}"></property>
<!-- 连接池最小空闲 -->
<property name="minIdle" value="${minIdle}"></property>
<!-- 获取连接最大等待时间 -->
<property name="maxWait" value="${maxWait}"></property>
</bean>
<!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 -->
<bean class="">
<property name="dataSource" ref="dataSource" />
<!-- 自动扫描文件 -->
<property name="mapperLocations" value="classpath:com/kevenwu/mapper/*.xml"></property>
</bean>
<!-- DAO接口所在包名,Spring会自动查找其下的类 -->
<bean class="">
<property name="basePackage" value="" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
</beans>
7、
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="/xml/ns/javaee"
xmlns:xsi="http:///2001/XMLSchema-instance"
xsi:schemaLocation="/xml/ns/javaee
/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<display-name>Archetype Created Web Application</display-name>
<!--加载配置文件-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:</param-value>
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:</param-value>
</context-param>
<!-- 编码过滤器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class></filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- spring监听器 -->
<listener>
<listener-class></listener-class>
</listener>
<!-- 防止spring内存溢出监听器,比如quartz -->
<listener>
<listener-class></listener-class>
</listener>
<!-- spring mvc servlet-->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class></servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<!-- 此处也可以配置成 *.do 形式 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>/</welcome-file>
</welcome-file-list>
<!-- session配置 -->
<session-config>
<session-timeout>15</session-timeout>
</session-config>
</web-app>
因为是最简单的框架,没有加入log4j和junit,需要的同学自己加上。到这里,项目应该可以启动,显示在中的helloworld.
现在开始项目本身功能的搭建。
本人数据库中有一张city表,现在要做的是通过id查出这个city的name
8、完成后的项目结构:
9、citydao:
package ;
import ;
@Repository
public interface CityDao {
String queryById(String id);
}
10、cityservice:
package ;
public interface CityService {
String getCityName(String id);
}
11、cityserviceimpl:
package ;
import ;
import ;
import ;
import ;
@Service("cityService")
public class CityServiceImpl implements CityService {
@Autowired
CityDao cityDao;
public String getCityName(String id) {
return (id);
}
}
:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-////DTD Mapper 3.0//EN"
"/dtd/">
<mapper namespace="">
<!-- 目的:为dao接口方法提供sql语句配置 -->
<select resultType="">
<!-- 具体的sql -->
SELECT
Name
FROM
city
WHERE
id = #{id}
</select>
</mapper>
:
package ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
@Controller
@RequestMapping("/city")
public class CityController {
@Autowired
private CityServiceImpl cityService;
@RequestMapping("/getcityname")
public ModelAndView hello(ModelAndView mv,@RequestParam String id){
String name=(id);
("cityname",name);
("cityname");
return mv;
}
}
14,:在webinfo下的jsp文件夹中:
<%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2017/8/22
Time: 16:56
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
${cityname}
</body>
</html>
经过上面这么多我们就是要去根据id取得name,开始运行,浏览器中输入:
http://localhost:8080/ssmcreater/city/getcityname?id=1
结果:
——————————
数据库中:
好了,已成成功取得了id为1的name了~~
重点:这里在pojo中的实体类并没有实际用到,纯粹去查数据库了,加在项目中是为了项目完整
在****下载:/download/wujunwen/9946722
同时,我上传到了github:/BabyWords/ssmcreater