SSM（Mybatis + Spring + Spring MVC）框架整合详细步骤（附jar包和项目下载，免费的）

本例从0开始逐一整合SSM的步骤，实现基础的CRUD

开发环境：Eclipse4.6 + jdk1.8 + Tomcat8 + MySQL

SSM所需jar包和项目下载路径在文章最后

1.数据库

创建test数据库，file表

use test;CREATE TABLE `file` (`id` bigint(2) NOT NULL AUTO_INCREMENT,`userId` bigint(2) DEFAULT NULL,`name` varchar(255) DEFAULT NULL,`path` varchar(255) DEFAULT NULL,`size` int(11) DEFAULT NULL,PRIMARY KEY (`id`)
) DEFAULT CHARSET=UTF8;

2.准备数据

INSERT INTO `file` VALUES
('1', '10', 'tp1.jpg', '/Library/Tomcat/apache-tomcat-8.5.31/webapps/uploadDownloadFile/upload/tp1.jpg', '550714'),
('2', '7', '??????.xls', '/Library/Tomcat/apache-tomcat-8.5.31/webapps/uploadDownloadFile/upload/??????.xls', '76800'),
('3', '7', '3222.json', '/Library/Tomcat/apache-tomcat-8.5.31/webapps/uploadDownloadFile/upload/3222.json', '135482'),
('4', '7', 'tp2.jpg', '/Library/Tomcat/apache-tomcat-8.5.31/webapps/uploadDownloadFile/upload/tp2.jpg', '446418'),
('5', '1', 'tp7.jpg', '/Library/Tomcat/apache-tomcat-8.5.31/webapps/uploadDownloadFile/upload/tp7.jpg', '469380');

3.新建项目

在eclipse中新建项目uploadDownloadFile，选择Dynamic Web Project的方式。

4.导入jar包

将所需jar包复制到uploadDownloadFile/WebContent/WEB-INF/lib目录下（文章最后有jar包下载地址）。

5.domain File

package com.file.domain;public class File {private int id;private int userId;private String name;private String path;private int size;public int getId() {return id;}public void setId(int id) {this.id = id;}public int getUserId() {return userId;}public void setUserId(int userId) {this.userId = userId;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPath() {return path;}public void setPath(String path) {this.path = path;}public int getSize() {return size;}public void setSize(int size) {this.size = size;}@Overridepublic String toString() {return "File [id=" + id + ", userId=" + userId + ", name=" + name + ", path=" + path+ ", size=" + size + "]";}}

6.FileMapper

package com.file.mapper;import java.util.List;import com.file.domain.File;public interface FileMapper {public int insert(File file);  public void delete(int id);  public File get(int id);  public int update(File file);   public List<File> getAll();}

7.FileMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.file.mapper.FileMapper"><insert id="insert" parameterType="File" >insert into file (userId,name,path,size) values (#{userId},#{name},#{path},#{size})    </insert><delete id="delete" parameterType="int" >delete from file where id= #{id}   </delete><select id="get" parameterType="int" resultType="File">select * from file where id= #{id}    </select><update id="update" parameterType="File" >update file set userId=#{userId},name=#{name},path=#{path},size=#{size} where id=#{id}    </update><select id="getAll" resultType="File">select * from file      </select>        </mapper>

8.FileService

package com.file.service;import java.util.List;import org.springframework.web.multipart.MultipartFile;import com.file.domain.File;public interface FileService {void insert(MultipartFile file, String path);void delete(int id);File get(int id);List<File> getAll();}

9.FileServiceImpl

package com.file.service.impl;import java.util.List;
import java.util.Random;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;import com.file.domain.File;
import com.file.mapper.FileMapper;
import com.file.service.FileService;@Service
public class FileServiceImpl implements FileService {@Autowiredprivate FileMapper fileMapper;@Overridepublic void insert(MultipartFile file, String path) {File f = new File();int userId = new Random().nextInt(10) + 1;f.setName(file.getOriginalFilename());f.setPath(path);f.setSize((int)file.getSize());f.setUserId(userId);fileMapper.insert(f);}@Overridepublic void delete(int id) {fileMapper.delete(id);}@Overridepublic File get(int id) {return fileMapper.get(id);}@Overridepublic List<File> getAll() {return fileMapper.getAll();}}

10.FileController

package com.file.controller;import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URL;
import java.util.List;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;import com.file.service.FileService;// 告诉spring mvc这是一个控制器类
@Controller
@RequestMapping("")
public class FileController {@AutowiredFileService fileService;@RequestMapping("listFile")public ModelAndView listCategory(){ModelAndView mav = new ModelAndView();List<com.file.domain.File> fs= fileService.getAll();// 放入转发参数mav.addObject("fs", fs);// 放入jsp路径mav.setViewName("listFile");return mav;}}

11.web.xml

<?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>uploadDownloadFile</display-name><!-- spring的配置文件--><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- spring mvc核心：分发servlet --><servlet><servlet-name>mvc-dispatcher</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- spring mvc的配置文件 --><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:springMVC.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>mvc-dispatcher</servlet-name><url-pattern>/</url-pattern></servlet-mapping></web-app>

12. 在项目中新建名为resource的Source Folder文件，在该目录下新建db.properties文件、log4j.properties文件、mybatis-config.xml，分别是数据库、日志、mybatis的配置文件

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/test
username=root
password=admin

# Global logging configuration
log4j.rootLogger=ERROR, stdout
# MyBatis logging configuration...
log4j.logger.com.file=TRACE
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

<?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><!-- 配置框架的全局信息 --><!-- <settings><setting name="lazyLoadingEnabled" value="true"/><setting name="lazyLoadTriggerMethods" value="clone"/></settings> --><typeAliases><typeAlias type="com.file.domain.File" alias="file"/></typeAliases></configuration>

13.applicationContext.xml

在resource目录下新建applicationContext.xml文件，这是Spring的配置文件，其作用已在代码中注释

<?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:jdbc="http://www.springframework.org/schema/jdbc"xmlns:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"><!-- <context:annotation-config/><context:component-scan base-package="com.file"/> --><!-- 1. 识别数据源 --><context:property-placeholder location="classpath:db.properties" system-properties-mode="NEVER"/><!-- 2. 配置数据源 --><bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"><property name="driverClassName" value="${driver}" /><property name="url" value="${url}" /><property name="username" value="${username}" /><property name="password" value="${password}" /></bean><!-- 3. 扫描存放SQL语句的Category.xml --><bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource"/><!-- mybatis的配置文件 --><property name="configLocation" value="classpath:mybatis-config.xml"/><property name="mapperLocations" value="classpath:com/file/mapper/*.xml"/></bean><!-- 4. 扫描Mapper，并将其生命周期纳入Spring的管理 --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.file.mapper"/></bean><!-- 5.配置事务 --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource"></property></bean></beans>

14.在resource目录下新建springMVC.xml文件

<?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:jdbc="http://www.springframework.org/schema/jdbc"xmlns:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"><!-- 1. 扫描Controller,并将其生命周期纳入Spring管理 DI IOC --><context:annotation-config/><context:component-scan base-package="com.file"/><!-- 2. 注解驱动，以使得访问路径与方法的匹配可以通过注解配置 MVC --><mvc:annotation-driven /><!-- 3. 静态页面，如html,css,js,images可以访问 --><mvc:default-servlet-handler /><!-- 4. 视图定位到/WEB/INF/jsp 这个目录下 --><beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="viewClass"value="org.springframework.web.servlet.view.JstlView" /><property name="prefix" value="/WEB-INF/jsp/" /><property name="suffix" value=".jsp" /></bean></beans>

15.listFile.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8" import="java.util.*"%><%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%><html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>文件列表</title>
</head>
<body><table align='center' border='1' cellspacing='0'><tr><td>id</td><td>userId</td><td>name</td><td>path</td><td>size</td></tr><c:forEach items="${fs}" var="c" varStatus="st"><tr><td>${c.id}</td><td>${c.userId}</td><td>${c.name}</td><td>${c.path}</td><td>${c.size}</td></tr></c:forEach></table>
</body>
</html>

16.部署成功之后测试地址：http://localhost:8080/uploadDownloadFile/listFile

17.jar包、项目下载路径

jar包：链接: https://pan.baidu.com/s/1wtV2EQuon1oxpKeYmfGzRw 密码: j16a

项目：链接: https://pan.baidu.com/s/14Ehknu7pWbIIJV5lhvUdqQ 密码: m5gk

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