spring cloud学习第二步:spring boot配置mybatis

因为本人使用的是Mybatis作为持久层框架,所以本文主要介绍spring boot集成Mybatis如何

1.首先因为所需要的jar包,mybatis-spring-boot-starter & mysql-connector-java 两个引用

完整的pom.xml,引入mybatis依赖jar包

<?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>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>1.5.4.RELEASE</version>
<relativePath/>
</parent>

<groupId>com.aulbrother</groupId>
<artifactId>first</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>first</name>
<description>第一步</description>

<dependencyManagement>
<dependencies>
<dependency>
<!-- Import dependency management from Spring Boot -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>1.5.9.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Dalston.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>

<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.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>

<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>

<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>

<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

2.配置application.yml,配置数据源和mybatis配置

server:
port: 8080
servlet-path: /first
spring:
# 数据源配置
datasource:
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/springcloud?useUnicode=true&characterEncoding=utf8
username: root
password: 123456
#mybaits配置
mybatis:
mapper-locations: classpath:com/aulbrother/first/modules/**/mapper/*.xml #根据mapper.xml所在的目录设置
type-aliases-package: com.aulbrother.first.modules.**.po
configuration:
cacheEnabled: false
lazyLoadingEnabled: false
multipleResultSetsEnabled: true
useColumnLabel: true
useGeneratedKeys: true
autoMappingBehavior: PARTIAL
defaultExecutorType: SIMPLE
defaultStatementTimeout: 25
safeRowBoundsEnabled: false
mapUnderscoreToCamelCase: true
localCacheScope: SESSION
jdbcTypeForNull: OTHER
lazyLoadTriggerMethods: equals,clone,hashCode,toString

3.在Spring boot main类增加MapperScan注解

@SpringBootApplication
@MapperScan(basePackages = {"com.aulbrother.first.modules"})
public class FirstApplication{

public static void main(String[] args){
SpringApplication.run(FirstApplication.class, args);
System.out.println("Succ start app #####################################################################!!");
}
}

4.然后依次创建Controller,Service,Dao,Mapper.xml