SSM框架搭建

来源：互联网发布：神经网络数据融合编辑：程序博客网时间：2024/06/02 06:49

-SSM =SpringMVC +spring +Mybatis

需要的jar包链接链接：http://pan.baidu.com/s/1c10kx7U 密码：1u18

转载自http://blog.csdn.net/h66295112/article/details/54172295

我们先来看看文件结构图

有点多吗？没关系，我们可以一步一步的来

首先我们在MySQL中创建一个数据库SSM
然后创建一个表d_user

create table d_user(id       varchar(20),username varchar(20),age  varchar(20));1

插入一条数据
insert into d_user values(“1”,”hello”,”25”);
好了数据库创建完毕了

然后我们肯定先需要创建一个User.Java

package com.model;public class User {    int id;    String username;    String age;    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getUsername() {        return username;    }    public void setUsername(String username) {        this.username = username;    }    public String getAge() {        return age;    }    public void setAge(String age) {        this.age = age;    }}

然后我们在来创建mybatis的映射表UserMapper.java和userMapper.xml

先创建一个UserMapper.java

package com.mapper;import java.util.List;import com.model.User;public interface UserMapper {    String findAge(String id);}

再来创建它的实现UserServiceImpl.java

package com.service;import java.util.List;import javax.annotation.Resource;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Transactional;import com.mapper.UserMapper;import com.model.User;import com.service.UserService;@Service@Transactionalpublic class UserServiceImpl implements UserService{       @Resource    public UserMapper userMapper;    @Override    public String findAge(String id) {        // TODO Auto-generated method stub        String age =userMapper.findAge(id);        return age;    }}

下面我们来个jsp看看 hello.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"    pageEncoding="utf-8"%><!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>Insert title here</title></head><body><form action="hello.do" method="post">    hello:<input type="text" name="userName"/>    <input type="submit" value="提交" /> </form></body></html>

再写一个index.jsp
只需要在body中添加一个456即可

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"    pageEncoding="ISO-8859-1"%><!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=ISO-8859-1"><title>Insert title here</title></head><body><p>456</p></body></html>

下面我们来配置文件
先配置web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <welcome-file-list>    <welcome-file>hello.jsp</welcome-file>  </welcome-file-list>    <!-- 加载Spring容器配置 -->    <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <!-- 设置Spring容器加载所有的配置文件的路径 -->    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>classpath*:config/applicationContext.xml</param-value>    </context-param>    <!-- 配置SpringMVC核心控制器 -->    <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*:config/spring-mvc.xml</param-value>        </init-param>        <!-- 启动加载一次 -->          <load-on-startup>1</load-on-startup>    </servlet>    <!--为DispatcherServlet建立映射 -->    <servlet-mapping>        <servlet-name>springMVC</servlet-name>        <!-- 此处可以可以配置成*.do -->        <url-pattern>*.do</url-pattern>    </servlet-mapping>    <!-- 防止Spring内存溢出监听器 -->    <listener>        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>    </listener>    <!-- 解决工程编码过滤器 -->    <filter>        <filter-name>encodingFilter</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>forceEncoding</param-name>            <param-value>true</param-value>        </init-param>    </filter>    <filter-mapping>        <filter-name>encodingFilter</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping></web-app>

我们在配置spring-mvc.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:mvc="http://www.springframework.org/schema/mvc"    xsi:schemaLocation="http://www.springframework.org/schema/beans     http://www.springframework.org/schema/beans/spring-beans.xsd    http://www.springframework.org/schema/context    http://www.springframework.org/schema/context/spring-context-4.0.xsd    http://www.springframework.org/schema/mvc    http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">    <!-- 注解扫描包 -->    <context:component-scan base-package="com" />    <!-- 开启注解 -->    <mvc:annotation-driven />    <!-- 定义跳转的文件的前后缀 ，视图模式配置-->    <bean id="viewResolver"        class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->        <property name="prefix" value="/" />        <property name="suffix" value=".jsp" />    </bean></beans>

配置mybatis-config.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>    <typeAliases>        <typeAlias alias="User" type="com.model.User"/>    </typeAliases>    <mappers>        <mapper resource="com/mapper/userMapper.xml" />    </mappers></configuration>

在配置最后一个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:p="http://www.springframework.org/schema/p"    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"    xsi:schemaLocation="        http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd        http://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context-4.0.xsd        http://www.springframework.org/schema/tx        http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">    <!-- 1. 数据源 : DriverManagerDataSource -->    <bean id="dataSource"        class="org.springframework.jdbc.datasource.DriverManagerDataSource">        <property name="driverClassName" value="com.mysql.jdbc.Driver" />        <property name="url" value="jdbc:mysql://localhost:3306/SSM" />        <property name="username" value="root" />        <property name="password" value="123" />    </bean>    <!--        2. mybatis的SqlSession的工厂: SqlSessionFactoryBean dataSource:引用数据源        MyBatis定义数据源,同意加载配置    -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource"></property>        <property name="configLocation" value="classpath:config/mybatis-config.xml" />     </bean>    <!--        3. mybatis自动扫描加载Sql映射文件/接口 : MapperScannerConfigurer sqlSessionFactory        basePackage:指定sql映射文件/接口所在的包（自动扫描）    -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="basePackage" value="com.mapper"></property>        <property name="sqlSessionFactory" ref="sqlSessionFactory"></property>    </bean>    <!--        4. 事务管理 : DataSourceTransactionManager dataSource:引用上面定义的数据源    -->    <bean id="txManager"        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource"></property>    </bean>    <!-- 5. 使用声明式事务         transaction-manager：引用上面定义的事务管理器     -->    <tx:annotation-driven transaction-manager="txManager" /></beans>

要注意数据的账号和密码要修改成你自己的，好了大功告成，然后我们运行hello.jsp,随意输入一个字符比如123，然后提交，如果成功读取，会在控制台输出25.

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