利用SSM搭建web项目

不念不忘少年蓝@ 2022-06-05 06:36 317阅读 0赞

**下面给大家介绍一下，ssm的搭建和使用，7步搞定框架搭建**

**SSM所需要的jar包下载地址：http://download.csdn.net/download/baidu\_32492845/10126554**

**1，创建数据库**

DROP TABLE IF EXISTS `userinformation`;
    CREATE TABLE `userinformation` (
      `id` int(100) NOT NULL AUTO_INCREMENT,
      `name` varchar(100) DEFAULT NULL,
      `password` varchar(100) DEFAULT NULL,
      `other` varchar(200) DEFAULT NULL,
      PRIMARY KEY (`id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=latin1;

**2，创建Javaweb项目，如下图所示，先建立几个必要的包**

config-用来装配置文件；controller-用来装controller文件；domain-用来装实体类；mapper-用来装DAO文件，service-服务层文件；

![Center][]

**3，建立创建controller类，domain实体类，DAO的mapper接口和xml文件，service类，只是创建，里面的代码下面会告诉大家怎么写，如下图所示**

![Center 1][]

**4，将ssm框架需要用到的jar包copy到WebRoot下面的WEB-INF下面的lib中，如图**

**SSM框架需要的jar包下载地址：http://download.csdn.net/download/baidu\_32492845/10126554**

![Center 2][]

**5，开始写框架配置文件**

**1）在config包下面创建一个mybatis-config.xml文件，也就是DAO层的配置文件，文件代码如下**

<?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>
         
        <typeAliases>
          
        <package name="com.test.domain"/>
        </typeAliases> 
    	
    	<mappers>
    		<package name="com/test/mapper" />
    	</mappers>
    </configuration>

**2）下面再在WebRoot下面的WEB-INF下面中创建一个applicationContext.xml,是用来配置spring的，代码如下**

<?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/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">
    
    <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/test" />
    		<property name="username" value="root" />
    		<property name="password" value="" />
    </bean>
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    		<property name="dataSource" ref="dataSource" />
    		<property name="configLocation" value="classpath:com/test/config/mybatis-config.xml" />
    	</bean>
    
       <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    	  <property name="basePackage" value="com.test.mapper" /> 
    	  <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> 
       </bean>
       
    
     	
    	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    		<property name="dataSource" ref="dataSource" />
    	</bean>
    	
    	
    	<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>
    	<context:component-scan base-package="com.test"></context:component-scan>
    
    
    </beans>

**3）再在WebRoot下面的WEB-INF下面创建一个配置文件mvc-config.xml，是配置controller层的，代码如下**

<?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:mvc="http://www.springframework.org/schema/mvc"
    	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-3.2.xsd 
    		http://www.springframework.org/schema/mvc 
    		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
    		http://www.springframework.org/schema/context 
    		http://www.springframework.org/schema/context/spring-context-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 ">
        
    	
    	<context:component-scan base-package="com.test"></context:component-scan>
    	
    	
    	
    	<mvc:annotation-driven/>
    	
    	
    	<mvc:default-servlet-handler />
    	
    	
    	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		<property name="prefix" value="/" />
    		<property name="suffix" value=".jsp"></property>
    	</bean>
    
    </beans>

**4）配置web.xml文件，代码如下**

<?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">
    
    	
    	<listener>
    		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    	</listener>
    
    	
    	<context-param>
    		<param-name>contextConfigLocation</param-name>
    		<param-value>/WEB-INF/applicationContext.xml</param-value>
    	</context-param>
    
    	
    	<servlet>
    		<servlet-name>springMVC</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    		    <param-value>/WEB-INF/mvc-config.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>
    
    	
    	<listener>
    		<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
    	</listener>
    
    	
    	<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>
    
    	<welcome-file-list>
    		<welcome-file>index.jsp</welcome-file>
    	</welcome-file-list>
    </web-app>

**6，配置文件写好了，下面开始写代码**

**1)domain实体类的User.java**

package com.test.domain;
    
    public class User {
    	private int id;
    	private String name;
    	private String password;
    	private String other;
    
    	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 getPassword() {
    		return password;
    	}
    
    	public void setPassword(String password) {
    		this.password = password;
    	}
    
    	public String getOther() {
    		return other;
    	}
    
    	public void setOther(String other) {
    		this.other = other;
    	}
    
    }

**2)DAO层UserMapper.java**

package com.test.mapper;
    
    import java.util.List;
    
    import com.test.domain.User;
    
    public interface UserMapper {
    
    	List<User> findAllUser();
    
    }

**3)DAO层UserMapper.xml**

<?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.test.mapper.UserMapper">
        
        <resultMap type="com.test.domain.User" id="UserMap">
        
        	<id property="id" column="id"/>
        	<result property="name" column="name"/>
        	<result property="password" column="password"/>
        	<result property="other" column="other"/>
        </resultMap>
        
        <select id="findAllUser"  resultMap="UserMap">
        	select * from userInformation
        </select>
     
    </mapper>

**4）service层的UserService.java**

package com.test.service;
    
    import java.util.List;
    
    import javax.annotation.Resource;
    
    import org.springframework.stereotype.Service;
    
    import com.test.domain.User;
    import com.test.mapper.UserMapper;
    
    @Service
    public class UserService {
    
    	@Resource
    	private UserMapper userMapper;
    
    	public List<User> getAllUser() {
    		List<User> list = userMapper.findAllUser();
    		return list;
    	}
    }

**5)controller层的UserController.java**

package com.test.controller;
    
    import java.util.List;
    
    import javax.annotation.Resource;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import com.test.domain.User;
    import com.test.service.UserService;
    
    @Controller
    @RequestMapping("/UserController")
    public class UserController {
    
    	@Resource
    	private UserService userService;
    
    	@RequestMapping("/getAllUser")
    	public String getAllUser(String message, Model model) {
    		System.out.println("============message===============:" + message);
    		List<User> list = userService.getAllUser();
    		model.addAttribute("userList", list);
    		return "list";
    	}
    
    }

**6)index.jsp  访问项目的首页**

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>">
        
        <title>My JSP 'index.jsp' starting page</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">
    	
      </head>
      
      <body>
        <form action="UserController/getAllUser" method="get">
        	<input type="text" name="message"/>
        	<input type="submit" value="提交"/>
        </form>
      </body>
    </html>

**7)lits.jsp  用来显示所有user的**

<%@ 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>list</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">
    
    
    	</head>
    
    	<body>
    		<table border="1">
    			<tbody>
    				<tr>
    					<th>
    						id
    					</th>
    					<th>
    						name
    					</th>
    					<th>
    						password
    					</th>
    					<th>
    						other
    					</th>
    				</tr>
    
    				<c:forEach items="${userList}" var="list">
    					<tr>
    						<td>
    							${list.id }
    						</td>
    						<td>
    							${list.name }
    						</td>
    						<td>
    							${list.password }
    						</td>
    						<td>
    							${list.other }
    						</td>
    					</tr>
    				</c:forEach>
    
    			</tbody>
    		</table>
    	</body>
    </html>

**7，运行web项目，在浏览器输入：localhost:端口号默认8080/项目名字/index.jsp，我的是： localhost:8090/TTestSSM/index.jsp，记得数据库要启动起来**

下面是项目首页index.jsp

![Center 3][]  
  
  
点击提交，出现下面list.jsp界面

![Center 4][]

好了，整个SSM项目到这里就搭建完成了。

**最后可以下载完整版ssm的demo**

**地址：http://download.csdn.net/download/baidu\_32492845/10126602**

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