mybatis主要是将sql从代码中剥离出来，配置到配置文件（.xml）中的优秀框架。Springboot可以通过简单的配置，简化了传统的springmvc中很多的配置文件，就可以实现项目的构建。在分布服务的概念中，尤其适用于这种框架。

1.创建数据库表，存入简单数据。

id	name
123	张三
02	李四

2.创建springboot项目pxApp

2.1配置pxApp项目的pom.xml


<?xml version="1.0" encoding="UTF-8"?>
<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.gbicc</groupId><artifactId>pxApp</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>pxApp</name><description>Demo project for Spring Boot</description><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.9.RELEASE</version></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>1.3.1</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

2.2通过application.properties配置数据源等

#springboot+mybatis
#jiazai mybatis peizhi
mybatis.config-location=classpath:mapper/config/mybatis-config.xml
mybatis.mapper-locations=classpath:mapper/*.xml#bieming
#mybatis.type-aliases-package=com.pxAppInterface.entity
#shujuyuan
spring.datasource.url=jdbc:mysql://localhost:3062/px_user?useUnicode=true&characterEncoding=UTF-8
#shujuyuan qudong
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=root

2.3配置mybatis-config.xml


<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configurationPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration><typeAliases><typeAlias alias="Integer" type="java.lang.Integer" /><typeAlias alias="Long" type="java.lang.Long" /><typeAlias alias="HashMap" type="java.util.HashMap" /><typeAlias alias="LinkedHashMap" type="java.util.LinkedHashMap" /><typeAlias alias="ArrayList" type="java.util.ArrayList" /><typeAlias alias="LinkedList" type="java.util.LinkedList" /></typeAliases>
</configuration>

2.4配置*Mapper.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" >
<!--注意命名空间 -->
<mapper namespace="com.pxAppInterface.mapper.UserMapper" ><resultMap id="user" type="com.pxAppInterface.entity.User" ><result column="id" property="Id" jdbcType="VARCHAR" /><result column="name" property="Name" jdbcType="VARCHAR" /></resultMap><select id="getUserp" resultType="com.pxAppInterface.entity.User" parameterType="map">SELECT * FROM user where id=#{Id} </select><select id="getUserpCount" resultType="java.lang.Integer">SELECT count(*) FROM user</select>
</mapper>

service,dao User类都省略不写了，与以往项目没什么不同。

3.运行及访问

springboot 的强大之处，也体现在了这儿。项目启动无需在tomcat等服务器中，直接通过运行3.2的主函数方法，既可以启动成功。
访问时的url路径，也要安全简洁的多。只是采取这种方便的路径，Controller的接收参数格式，要做如3.1的改变。
##3.1写Controller

package com.pxAppInterface.controller;import java.util.HashMap;
import java.util.List;
import java.util.Map;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;import com.pxAppInterface.entity.ChapterTab;
import com.pxAppInterface.entity.User;
import com.pxAppInterface.service.ChapterTabService;
import com.pxAppInterface.service.UserService;//相当于@Controller+@ResponseBody
@RestController
public class courseController {//注入service对象@Autowiredprivate UserService userService;@Autowiredprivate ChapterTabService chapterTabService;@RequestMapping("ssm")public User findAll(){Map<String, Object> map = new HashMap<String,Object>();map.put("Id", "123");User u = userService.getUserp(map);return u;}//使用@RestController注解，返回String类型时，返回的就是字符串，不是页面@RequestMapping("/findJsp")public String yeMian(){return "test";}//访问路径http://localhost:8080/findAllFH/资产风险预警@RequestMapping("/findAllFH/{courseName}")public List<ChapterTab>  findAllFH( @PathVariable String courseName){Map<String, Object> map = new HashMap<String,Object>();Map<String, Object> map1 = new HashMap<String,Object>();map1.put("courseName", courseName);List<ChapterTab> chapterList = chapterTabService.getFH(map1);map.put("chapterList",chapterList);return chapterList;}//访问路径http://localhost:8080/findAllFH2/@RequestMapping("/findAllFH2")public List<ChapterTab>  findAllFH2(){Map<String, Object> map = new HashMap<String,Object>();Map<String, Object> map1 = new HashMap<String,Object>();map1.put("courseName", "资产风险预警");List<ChapterTab> chapterList = chapterTabService.getFH(map1);map.put("chapterList",chapterList);return chapterList;}
}

3.2 启动类

运行此方法，及可通过3.1中的路径访问，并查询出数据

package com.pxAppInterface;import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;@SpringBootApplication
@MapperScan("com.pxAppInterface.mapper")
public class PxAppApplication {public static void main(String[] args) {SpringApplication.run(PxAppApplication.class, args);}
}

启动后的示例图：
访问findJsp 无法返回jsp页面，具体访问方法，请看下篇博客。

至此，一个整合mybatis的springboot项目就构建完毕了。
接下来我们来也“服务”。

4.构建服务项目testapp-servers

新建一个springboot项目，作为服务项目。

4.1 pom.xml

导入spring-cloud-starter-eureka-server和spring-cloud-dependencies

<?xml version="1.0" encoding="UTF-8"?>
<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.gbicc</groupId><artifactId>testapp-servers</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>testapp-servers</name><description>Demo project for Spring Boot</description><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.9.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka-server</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Dalston.SR4</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build><repositories><repository><id>spring-milestones</id><name>Spring Milestones</name><url>https://repo.spring.io/milestone</url><snapshots><enabled>false</enabled></snapshots></repository></repositories></project>

4.2配置application.properties

配置端口和ip

server.port=8761eureka.instance.hostname=localhost
eureka.client.registerWithEureka=false
eureka.client.fetchRegistry=false
eureka.client.serviceUrl.defaultZone= http://${eureka.instance.hostname}:${server.port}/eureka/

4.3启动该项目

package com.theserver;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;@SpringBootApplication
@EnableEurekaServer
public class TestappServersApplication {public static void main(String[] args) {SpringApplication.run(TestappServersApplication.class, args);}
}

4.4启动后访问

由于application.properties中配置的端口为8761，ip配置的为localhost，所以访问路径为http://localhost:8761/，此时可以看到，红色箭头标记处，并无服务已注册。启动成功。

5.注入服务

将本文2和2.1中建的pxApp项目，作为注入对象。
##5.1 对pxApp项目的pom文件进行更改
1.加入spring-cloud-starter-eureka依赖

<dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka</artifactId></dependency>

2.设置spring-cloud-starter-eureka的版本

<spring-cloud.version>Dalston.RELEASE</spring-cloud.version>

3.加入dependencyManagement

<dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>${spring-cloud.version}</version><type>pom</type> <scope>import</scope></dependency></dependencies>
</dependencyManagement>

4.更改好的完整pom.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<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.gbicc</groupId><artifactId>pxApp</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>pxApp</name><description>Demo project for Spring Boot</description><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.9.RELEASE</version></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version><spring-cloud.version>Dalston.RELEASE</spring-cloud.version></properties><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka</artifactId></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>1.3.1</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies>
<dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>${spring-cloud.version}</version><type>pom</type> <scope>import</scope></dependency></dependencies>
</dependencyManagement><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

5.2在application.properties进行更改

设置端口和服务名字，名字可以设置自己的项目名，也可以随意起。端口号是服务注册后，访问时要用到的，不要跟其他服务重复。我在这里将此次端口号设置为8387

#springboot+mybatis
#jiazai mybatis peizhi
mybatis.config-location=classpath:mapper/config/mybatis-config.xml
mybatis.mapper-locations=classpath:mapper/*.xml#bieming
#mybatis.type-aliases-package=com.pxAppInterface.entity
#shujuyuan
spring.datasource.url=jdbc:mysql://120.199.82.51:3062/px_user?useUnicode=true&characterEncoding=UTF-8
#shujuyuan qudong
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=root#------------------update -------------------------
eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/server.port=8387
spring.application.name=pxApp
#------------------update -------------------------

5.3给启动类加入@EnableDiscoveryClient注解

加入此注解后再启动，并访问刚刚的服务项目路径
http://localhost:8761/
此时发现pxAPP已被成功注入

6.访问pxApp服务下的ssm接口

eclipse可以停到pxApp项目，但是不要将testapp-servers项目停掉。
http://192.168.1.111:8387/ssm

访问成功。

ps:192.168.1.111为注册服务是的本地ip

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