springboot-mybatis-demo遇到的坑

前言

环境:

java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

mysql Server version: 8.0.13

Eclipse IDE Version: Photon Release (4.8.0)

问题&解决

1.初始化Maven工程过慢

使用国外站点进行更新，实在太浪费时间，所以修改为国内站点
在pom.xml中添加(pom.xml集成了依赖关系)

<repositories>
		<repository>
			<id>alimavenid>
			<name>aliyun mavenname>
			<url>http://maven.aliyun.com/nexus/content/groups/public/url>
		repository>
		repositories>

完整pom.xml如下

<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>4.0.0modelVersion>

	<groupId>com.wintergroupId>
	<artifactId>springboot-mybatis-demoartifactId>
	<version>0.0.1-SNAPSHOTversion>
	<packaging>jarpackaging>

	<name>springboot-mybatis-demoname>
	<description>Demo project for Spring Bootdescription>

	<parent>
		<groupId>org.springframework.bootgroupId>
		<artifactId>spring-boot-starter-parentartifactId>
		<version>1.5.6.RELEASEversion>
		<relativePath/> 
	parent>
	<repositories>
		<repository>
			<id>alimavenid>
			<name>aliyun mavenname>
			<url>http://maven.aliyun.com/nexus/content/groups/public/url>
		repository>
		repositories>

	<properties>
		<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
		<java.version>1.8java.version>
	properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-jdbcartifactId>
		dependency>
		<dependency>
			<groupId>org.mybatis.spring.bootgroupId>
			<artifactId>mybatis-spring-boot-starterartifactId>
			<version>1.3.0version>
		dependency>
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-thymeleafartifactId>
		dependency>
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-webartifactId>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-testartifactId>
			<scope>testscope>
		dependency>
		<dependency>
			<groupId>mysqlgroupId>
			<artifactId>mysql-connector-javaartifactId>
			<version>8.0.13version>
		dependency>
		
		<dependency>
			<groupId>com.alibabagroupId>
			<artifactId>druidartifactId>
			<version>1.0.11version>
		dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.coregroupId>
			<artifactId>jackson-coreartifactId>
		dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.coregroupId>
			<artifactId>jackson-databindartifactId>
		dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.datatypegroupId>
			<artifactId>jackson-datatype-jodaartifactId>
		dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.modulegroupId>
			<artifactId>jackson-module-parameter-namesartifactId>
		dependency>
		
		<dependency>
			<groupId>com.github.pagehelpergroupId>
			<artifactId>pagehelper-spring-boot-starterartifactId>
			<version>1.1.2version>
		dependency>
		
		<dependency>
			<groupId>com.alibabagroupId>
			<artifactId>druid-spring-boot-starterartifactId>
			<version>1.1.0version>
		dependency>
		
		<dependency>
			<groupId>net.sf.mpxjgroupId>
			<artifactId>mpxjartifactId>
			<version>7.1.0version>
		dependency>

		
		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-loggingartifactId>
		dependency>
		
		<dependency>
			<groupId>org.projectlombokgroupId>
			<artifactId>lombokartifactId>
		dependency>
	dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.bootgroupId>
				<artifactId>spring-boot-maven-pluginartifactId>
			plugin>
			
			<plugin>
				<groupId>org.mybatis.generatorgroupId>
				<artifactId>mybatis-generator-maven-pluginartifactId>
				<version>1.3.2version>
				<configuration>
					<configurationFile>${basedir}/src/main/resources/generator/generatorConfig.xmlconfigurationFile>
					<overwrite>trueoverwrite>
					<verbose>trueverbose>
				configuration>
			plugin>
		plugins>
	build>


project>

2.Spring Boot 集成druid时时区问题和连接超时问题

添加&serverTimezone=GMT%2B8&autoReconnect=true
完整application.yml如下

server:
  port: 8080

spring:
    datasource:
        name: test
        url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8&autoReconnect=true&failOverReadOnly=false&allowMultiQueries=true 
        username: root
        password: root
        # 使用druid数据源
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.cj.jdbc.Driver
        filters: stat
        maxActive: 20
        initialSize: 1
        maxWait: 60000
        minIdle: 1
        timeBetweenEvictionRunsMillis: 60000
        minEvictableIdleTimeMillis: 300000
        validationQuery: select 'x'
        testWhileIdle: true
        testOnBorrow: false
        testOnReturn: false
        poolPreparedStatements: true
        maxOpenPreparedStatements: 20
mybatis:
  mapper-locations: classpath:mapping/*.xml
  type-aliases-package: com.winter.model

#pagehelper
pagehelper:
    helperDialect: mysql
    reasonable: true
    supportMethodsArguments: true
    params: count=countSql

3.完整工程下载

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