ssm之helloworld

来源：互联网发布：泰国蛇毒洗面奶知乎编辑：程序博客网时间：2024/06/01 07:44

最简单的ssm整合

防忘大法好

所需jar包

commons-dbcp-1.2.jar

commons-logging-1.1.3.jar

commons-pool-1.6.jar

mybatis-3.4.4.jar

mybatis-spring-1.3.0.jar

mysql-connector-java-5.1.5-bin.jar

spring-aop-4.3.7.RELEASE.jar

spring-beans-4.3.7.RELEASE.jar

spring-context-4.3.7.RELEASE.jar

spring-context-support-4.3.7.RELEASE.jar

spring-core-4.3.7.RELEASE.jar

spring-expression-4.3.7.RELEASE.jar

spring-jdbc-4.3.7.RELEASE.jar

spring-tx-4.3.7.RELEASE.jar

spring-web-4.3.7.RELEASE.jar

spring-webmvc-4.3.7.RELEASE.jar

spring-mvc.xml(该配置文件包含spring，springmvc，mybatis配置)

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

        
        <context:component-scan base-package="com.dadao.biz"></context:component-scan>
        <context:component-scan base-package="com.dadao.controller"></context:component-scan>

        
        <mvc:annotation-driven />

        
        <mvc:resources mapping="/html/**" location="/html/" />
        <mvc:resources mapping="/css/**" location="/css/" />
        <mvc:resources mapping="/image/**" location="/image/" />
        <mvc:resources mapping="/js/**" location="/js/" />
        <mvc:resources mapping="/fonts/**" location="/fonts/" />

        
        <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
            <property name="location" value="classpath:jdbc.properties" />
        </bean>

        
       <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
              <property name="driverClassName" value="${driver}" />
              <property name="url" value="${url}" />
          <property name="username" value="${username}" />
          <property name="password" value="${password}" />
       </bean>

       
       <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
              <property name="dataSource" ref="dataSource" />
           
           <property name="mapperLocations" value="classpath:com/dadao/dao/*.xml" />
       </bean>

       
       <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
              <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
              <property name="basePackage" value="com.dadao.dao" />
        </bean>

        
       <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
           <property name="prefix" value="" />
           <property name="suffix" value=".jsp" />
        </bean>

</beans>

jdbc.properties文件如下

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1/dadao
username=root
password=root

web.xml文件如下

<?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>WebDemo</display-name>


<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-mvc.xml</param-value>
     </init-param>
     <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
     <servlet-name>springMVC</servlet-name>
     <url-pattern>/</url-pattern>
</servlet-mapping>

<welcome-file-list>
   <welcome-file>homePage</welcome-file>
    <welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

随便一句sql

<?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.dadao.dao.HomePageDao">

<select id="getMottoByRandom" parameterType="java.lang.String" resultType="com.dadao.po.MottoPO">
SELECT motto FROM tb_app_motto ORDER BY RAND() LIMIT 1
</select>
</mapper>

及其对应的dao

package com.dadao.dao;

import com.dadao.po.MottoPO;

public interface HomePageDao {

public MottoPO getMottoByRandom();
}

对应的biz

package com.dadao.biz;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.dadao.dao.HomePageDao;

@Service
public class HomePageBiz {

   @Autowired
   private HomePageDao _dao;

   public String getMottoByRandom(){
       return _dao.getMottoByRandom().getMotto();
   }

}

对应的controller

package com.dadao.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.dadao.biz.HomePageBiz;

@Controller
public class HomePageController {

   @Autowired
   private HomePageBiz _biz;

   @RequestMapping(value="homePage")
   public String homePage(Model model){
       String motto = _biz.getMottoByRandom();
       model.addAttribute("motto", motto);
       return "index";
   }
}

输入http://localhost:8080/WebDemo/homePage

差不多就这样

阅读全文

0 0