springboot+mybatis+springmvc整合实例

以往的ssm框架整合通常有两种形式，一种是xml形式，一种是注解形式，不管是xml还是注解，基本都会有一大堆xml标签配置，其中有很多重复性的。springboot带给我们的恰恰是“零配置”，"零配置"不等于什么也不配置，只是说相对于传统的ssm框架的xml配置或是注解配置，要少的多。作为常规的来说，一个ssm框架整合，拿maven来说，首先在src/main/resource下加入jdbc.properties,spring-mvc.xml,spring-mybatis.xml等，还有要再web.xml配置监听类和前端控制器，同时还要配置对应的加载spring-mvc和spring-mybatis的路径。

而springboot的话，则不需要，只需在一个叫application.properties或者是叫application.yml配置数据源和解析jsp的即可。

参考网址:https://www.ggdoc.com

上述网址有许多参考文档可参考

参考网址:https://projects.spring.io/spring-boot/  该网址为springboot官网，官网虽然是英文的，但是可以通过第三方翻译过来，不过最好的话还是懂点英文。建议学习一门新技术，最好还是参考其官方网址和文档，那里是最详细的，其他什么博客之类的，可以作为参考学习过程中解决问题的利器。学习过程中是不可能不遇到问题的。

最好还是那句话，在不懂该技术之前，可以通过百度百科了解，或者其他博客写个入门实例，不过最好在此以后参考官网

就我个人的看法，必须和最好掌握spring+mybatis+springmvc等相关知识，同时也接触过ssm框架的xml配置和ssm框架的注解配置。这样方便比较学习，同时也有利于深入学习等。

不多说了，下面开始整合实例教程

一、准备环境

window10 jdk8 eclipe maven

二、pom文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>cn.springboot</groupId>
  <artifactId>springboot</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
 	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.2.5.RELEASE</version>
	</parent>
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<java.version>1.8</java.version>
	</properties>
	<dependencies>
		<!--Spring Boot -->
		<!--支持 Web 应用开发，包含 Tomcat 和 spring-mvc。 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<!--支持使用 JDBC 访问数据库 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>
		<!--添加适用于生产环境的功能，如性能指标和监测等功能。 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
		<!--Mybatis -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.2.2</version>
		</dependency>
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>3.2.8</version>
		</dependency>
		<!--Mysql / DataSource -->
		<dependency>
			<groupId>org.apache.tomcat</groupId>
			<artifactId>tomcat-jdbc</artifactId>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
		</dependency>
		<!--Json Support -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>fastjson</artifactId>
			<version>1.1.43</version>
		</dependency>
		<!--Swagger support -->
		<dependency>
			<groupId>com.mangofactory</groupId>
			<artifactId>swagger-springmvc</artifactId>
			<version>0.9.5</version>
		</dependency>

		<!-- 支持jsp start -->
		<dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
		<dependency>

			<groupId>org.springframework.boot</groupId>

			<artifactId>spring-boot-starter-tomcat</artifactId>

			<scope>provided</scope>

		</dependency>

		<dependency>

			<groupId>org.apache.tomcat.embed</groupId>

			<artifactId>tomcat-embed-jasper</artifactId>

			<scope>provided</scope>

		</dependency>
		<!-- end -->
	</dependencies>
	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>

				<configuration>
					<source>1.8</source>
					<target>1.8</target>
				</configuration>
			</plugin>

		</plugins>
	</build>
	<repositories>
		<repository>
			<id>spring-milestone</id>
			<url>https://repo.spring.io/libs-release</url>
		</repository>
	</repositories>
	<pluginRepositories>
		<pluginRepository>
			<id>spring-milestone</id>
			<url>https://repo.spring.io/libs-release</url>
		</pluginRepository>
</pluginRepositories>

 </project>

三、准备数据库和表

库名为 springboot

    CREATE TABLE `t_user` (
      `id` INT(11) NOT NULL,
      `username` VARCHAR(255) DEFAULT NULL,
      `password` VARCHAR(255) DEFAULT NULL,
      `email` VARCHAR(255) DEFAULT NULL,
      `useable` INT(20) DEFAULT NULL,
      `addtime` DATETIME DEFAULT NULL,
      `logintime` DATETIME DEFAULT NULL,
      `loginip` VARCHAR(255) DEFAULT NULL,
      PRIMARY KEY  (`id`)
    ) ENGINE=INNODB DEFAULT CHARSET=utf8;  

四、在src/main/resource下新建application.properties文件

spring.datasource.url=jdbc:mysql://localhost:3306/springboot?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull
spring.datasource.username=root
spring.datasource.password=1234
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

spring.view.prefix=/WEB-INF/templates/
spring.view.suffix=.jsp

五、建立实体类和对应的mapper接口相关

1.建立实体

    package com.sam.project.mvc.model;  

    /**
     * @ClassName: User
     * @Description: 实体模型
     */
    public class User {
        private Integer id;  

        private String username;  

        private String password;  

        private String email;  

        /**
         * 是否可用(0禁用,1可用)
         */
        private Integer useable;  

        /**
         * 创建时间
         */
        private String addtime;  

        /**
         * 登陆时间
         */
        private String logintime;  

        /**
         * 登陆IP
         */
        private String loginip;  

        /**
         * @return id
         */
        public Integer getId() {
            return id;
        }  

        /**
         * @param id
         */
        public void setId(Integer id) {
            this.id = id;
        }  

        /**
         * @return username
         */
        public String getUsername() {
            return username;
        }  

        /**
         * @param username
         */
        public void setUsername(String username) {
            this.username = username;
        }  

        /**
         * @return password
         */
        public String getPassword() {
            return password;
        }  

        /**
         * @param password
         */
        public void setPassword(String password) {
            this.password = password;
        }  

        /**
         * @return email
         */
        public String getEmail() {
            return email;
        }  

        /**
         * @param email
         */
        public void setEmail(String email) {
            this.email = email;
        }  

        /**
         * 获取是否可用(0禁用,1可用)
         *
         * @return useable - 是否可用(0禁用,1可用)
         */
        public Integer getUseable() {
            return useable;
        }  

        /**
         * 设置是否可用(0禁用,1可用)
         *
         * @param useable
         *            是否可用(0禁用,1可用)
         */
        public void setUseable(Integer useable) {
            this.useable = useable;
        }  

        /**
         * 获取创建时间
         *
         * @return addtime - 创建时间
         */
        public String getAddtime() {
            return addtime;
        }  

        /**
         * 设置创建时间
         *
         * @param addtime
         *            创建时间
         */
        public void setAddtime(String addtime) {
            this.addtime = addtime;
        }  

        /**
         * 获取登陆时间
         *
         * @return logintime - 登陆时间
         */
        public String getLogintime() {
            return logintime;
        }  

        /**
         * 设置登陆时间
         *
         * @param logintime
         *            登陆时间
         */
        public void setLogintime(String logintime) {
            this.logintime = logintime;
        }  

        /**
         * 获取登陆IP
         *
         * @return loginip - 登陆IP
         */
        public String getLoginip() {
            return loginip;
        }  

        /**
         * 设置登陆IP
         *
         * @param loginip
         *            登陆IP
         */
        public void setLoginip(String loginip) {
            this.loginip = loginip;
        }
    }  

2.建立对应的mapper接口

package com.sam.project.mvc.mapper;  

import java.util.List;  

import com.sam.project.mvc.model.User;  

/**
 * @ClassName: UserMapper
 * @Description: mybites数据查询接口
 */
public interface UserMapper {  

    List<User> queryList();  

    void save(User user);  

    void batchDelete(Integer[] ids);  

    void update(User user);  

} 

3.建立mapper对应的xml文件

在src/main/resource下新建mapper文件夹

在该文件下下新建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.sam.project.mvc.mapper.UserMapper">
        <select id="queryList" resultType="com.sam.project.mvc.model.User">
            SELECT u.id, u.username, u.password, u.email, u.useable, u.addtime, u.logintime, u.loginip FROM t_user u
        </select>  

        <select id="queryById" resultType="com.sam.project.mvc.model.User">
            SELECT u.id, u.username, u.password, u.email, u.useable, u.addtime, u.logintime, u.loginip FROM t_user u where u.id = #{id}
        </select>  

        <insert id="save">
            insert into t_user(username, password, email, useable, addtime)
            values(#{username}, #{password}, #{email}, #{useable}, now())
        </insert>  

        <update id="update">
            update t_user set password = #{password}, email = #{email}, useable = #{useable} where id = #{id}
        </update>  

        <delete id="batchDelete">
            delete from t_user where id in
            <foreach collection="array" item="item" open="(" separator="," close=")">
                #{item}
            </foreach>
        </delete>  

        <!-- <delete id="delUsers">
            delete from t_user where id in
            <foreach collection="list" item="item" open="(" separator="," close=")">
                #{item}
            </foreach>
        </delete> -->
    </mapper>  

六、建立业务接口和对应的Controller及其相关返回json数据工具类

1.UserService业务接口

package com.sam.project.mvc.service;  

    import java.util.List;

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

import com.sam.project.mvc.common.AjaxResult;
import com.sam.project.mvc.mapper.UserMapper;
import com.sam.project.mvc.model.User;  

    @Service
    public class UserService {  

        @Autowired
        private UserMapper userMapper;  

        public AjaxResult queryList() {
            List<User> list = userMapper.queryList();
            return new AjaxResult(list);
        }  

        public AjaxResult save(User user) {
            user.setUsername("user" + System.currentTimeMillis());
            user.setPassword("123456");
            user.setEmail("user" + System.currentTimeMillis());
            user.setUseable(1);
            userMapper.save(user);
            return new AjaxResult();
        }  

        public AjaxResult batchDelete(Integer[] ids) {
            userMapper.batchDelete(ids);
            return new AjaxResult();
        }  

        public AjaxResult update(User user) {
            userMapper.update(user);
            return new AjaxResult();
        }  

    }  

2.controller

    package com.sam.project.mvc.controller;  

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

import com.sam.project.mvc.common.AjaxResult;
import com.sam.project.mvc.model.User;
import com.sam.project.mvc.service.UserService;  

    /**
     * @ClassName: UserController
     * @Description: 用户Controller
     */
    @Controller
    public class UserController {  

        @Autowired
        private UserService userService;  

        @ResponseBody
        @RequestMapping("/queryList")
        public AjaxResult queryList(){
            return userService.queryList();
        }  

        @ResponseBody
        @RequestMapping("/addUser")
        public AjaxResult addUser(User user){
            return userService.save(user);
        }  

        @ResponseBody
        @RequestMapping("/delUser")
        public AjaxResult delUser(Integer[] ids){
            return userService.batchDelete(ids);
        }  

        @ResponseBody
        @RequestMapping("/updateUser")
        public AjaxResult updateUser(User user){
            return userService.update(user);
        }  

        @RequestMapping("/hello")
        public String hello(ModelMap map) {
            map.put("title", "你好");
            return "index";
        }

    }  

3.工具类

    package com.sam.project.mvc.common;  

    /**
     * @ClassName: AjaxResult
     * @Description: 封装返回数据
     */
    public class AjaxResult {  

        private int retcode = 1;
        private String retmsg = "操作成功";
        private Object data;  

        public AjaxResult(int retcode, String retmsg, Object data){
            this.retcode = retcode;
            this.retmsg = retmsg;
            this.data = data;
        }  

        public AjaxResult(int retcode, String retmsg){
            this.retcode = retcode;
            this.retmsg = retmsg;
        }  

        public AjaxResult(Object data){
            this.retmsg = "查询成功";
            this.data = data;
        }  

        public AjaxResult(int retcode){
            this.retcode = retcode;
            this.retmsg = "操作失败";
        }  

        public AjaxResult(String retmsg){
            this.retcode = 0;
            this.retmsg = retmsg;
        }  

        public AjaxResult(){  

        }  

        public int getRetcode() {
            return retcode;
        }
        public void setRetcode(int retcode) {
            this.retcode = retcode;
        }
        public String getRetmsg() {
            return retmsg;
        }
        public void setRetmsg(String retmsg) {
            this.retmsg = retmsg;
        }
        public Object getData() {
            return data;
        }
        public void setData(Object data) {
            this.data = data;
        }  

        @Override
        public String toString() {
            return "AjaxResult [retcode=" + retcode + ", retmsg=" + retmsg + ", data=" + data + "]";
        }  

    }  

七、springboot启动类

package com.sam.project.mvc;

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.log4j.Logger;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.web.SpringBootServletInitializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;

@EnableAutoConfiguration
@SpringBootApplication
@ComponentScan
@MapperScan("com.sam.project.mvc.mapper")
public class Application extends SpringBootServletInitializer {
    private static Logger logger = Logger.getLogger(Application.class);

    //DataSource配置
    @Bean
    @ConfigurationProperties(prefix="spring.datasource")
    public DataSource dataSource() {
        return new org.apache.tomcat.jdbc.pool.DataSource();
    }

    //提供SqlSeesion
    @Bean
    public SqlSessionFactory sqlSessionFactoryBean() throws Exception {

        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource());

        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();

        sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath:/mapper/*.xml"));

        return sqlSessionFactoryBean.getObject();
    }

    @Bean
    public PlatformTransactionManager transactionManager() {
        return new DataSourceTransactionManager(dataSource());
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
    }
    /**
     * Main Start
     */
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
        logger.info("============= SpringBoot Start Success =============");
    }

}

八、在WEB-INF下新建templates文件夹并在该文件夹下新建index.jsp文件

<%@ 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>你好</title>
</head>
<body>
${title }
</body>
</html>

九、启动Application类

启动成功，控制台会显示如下内容

十、在浏览器输入localhost:8080/hello

上述就是springboot+springmvc+mybatis整合实例