SpringBoot~整合mybatis+微服务注册

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 peizhimybatis.config-location=classpath:mapper/config/mybatis-config.xmlmybatis.mapper-locations=classpath:mapper/*.xml#bieming#mybatis.type-aliases-package=com.pxAppInterface.entity#shujuyuanspring.datasource.url=jdbc:mysql://localhost:3062/px_user?useUnicode=true&characterEncoding=UTF-8#shujuyuan qudongspring.datasource.driver-class-name=com.mysql.jdbc.Driverspring.datasource.username=rootspring.datasource.password=root

2.3配置mybatis-config.xml

<?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>        <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@RestControllerpublic class courseController {    //注入service对象    @Autowired    private UserService userService;    @Autowired    private 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=localhosteureka.client.registerWithEureka=falseeureka.client.fetchRegistry=falseeureka.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@EnableEurekaServerpublic 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 peizhimybatis.config-location=classpath:mapper/config/mybatis-config.xmlmybatis.mapper-locations=classpath:mapper/*.xml#bieming#mybatis.type-aliases-package=com.pxAppInterface.entity#shujuyuanspring.datasource.url=jdbc:mysql://120.199.82.51:3062/px_user?useUnicode=true&characterEncoding=UTF-8#shujuyuan qudongspring.datasource.driver-class-name=com.mysql.jdbc.Driverspring.datasource.username=rootspring.datasource.password=root#------------------update -------------------------eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/server.port=8387spring.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