更新 mybatis-demo 的 README.md

spring-boot-demo-mybatis/README.md

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+# spring-boot-demo-mybatis
+
+依赖 [spring-boot-demo-helloworld](../spring-boot-demo-parent)
+
+### pom.xml
+
+```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>
+
+	<artifactId>spring-boot-demo-mybatis</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>war</packaging>
+
+	<name>spring-boot-demo-mybatis</name>
+	<description>Demo project for Spring Boot</description>
+
+	<parent>
+		<groupId>com.xkcoding</groupId>
+		<artifactId>spring-boot-demo-parent</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+		<relativePath>../spring-boot-demo-parent/pom.xml</relativePath>
+	</parent>
+
+	<properties>
+		<mybatis.starter.version>1.3.1</mybatis.starter.version>
+		<druid.starter.version>1.1.5</druid.starter.version>
+		<mapper.version>1.1.1</mapper.version>
+		<pagehelper.version>1.1.0</pagehelper.version>
+	</properties>
+
+	<dependencies>
+		<!--mybatis-->
+		<dependency>
+			<groupId>org.mybatis.spring.boot</groupId>
+			<artifactId>mybatis-spring-boot-starter</artifactId>
+			<version>${mybatis.starter.version}</version>
+		</dependency>
+		<!--druid-->
+		<dependency>
+			<groupId>com.alibaba</groupId>
+			<artifactId>druid-spring-boot-starter</artifactId>
+			<version>${druid.starter.version}</version>
+		</dependency>
+		<!--通用 Mapper-->
+		<dependency>
+			<groupId>tk.mybatis</groupId>
+			<artifactId>mapper-spring-boot-starter</artifactId>
+			<version>${mapper.version}</version>
+		</dependency>
+		<!--PageHelper-->
+		<dependency>
+			<groupId>com.github.pagehelper</groupId>
+			<artifactId>pagehelper-spring-boot-starter</artifactId>
+			<version>${pagehelper.version}</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<finalName>spring-boot-demo-mybatis</finalName>
+	</build>
+
+</project>
+```
+
+### application.yml
+
+```yml
+server:
+  port: 8080
+  context-path: /demo
+spring:
+  jackson:
+    default-property-inclusion: non_null
+  datasource:
+    # 启动时自动运行的 SQL 文件
+    schema: classpath:init-sql/schema.sql
+    continue-on-error: true
+    druid:
+      url: jdbc:mysql://localhost:3306/spring-boot-demo?autoReconnect=true&useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false
+      username: root
+      password: root
+      driver-class-name: com.mysql.jdbc.Driver
+      # 连接池配置
+      # 初始化大小，最小，最大
+      initialSize: 5
+      minIdle: 5
+      maxActive: 20
+      # 配置获取连接等待超时的时间
+      maxWait: 60000
+      # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
+      timeBetweenEvictionRunsMillis: 60000
+      # 配置一个连接在池中最小生存的时间，单位是毫秒
+      minEvictableIdleTimeMillis: 300000
+      validationQuery: SELECT 1 FROM DUAL
+      testWhileIdle: true
+      testOnBorrow: false
+      testOnReturn: false
+      # 打开PSCache，并且指定每个连接上PSCache的大小
+      poolPreparedStatements: true
+      maxPoolPreparedStatementPerConnectionSize: 20
+      # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
+      filters: stat,wall,log4j
+      # 监控配置
+      web-stat-filter:
+        enabled: true
+        url-pattern: /*
+        exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"
+      stat-view-servlet:
+        enabled: true
+        url-pattern: /sys/druid/*
+        reset-enable: fasle
+        login-username: xkcoding
+        login-password: 123456
+      filter:
+        stat:
+          log-slow-sql: true
+          slow-sql-millis: 5000
+          merge-sql: true
+# mybatis 配置
+mybatis:
+  type-aliases-package: com.xkcoding.springbootdemomybatis.model
+  mapper-locations: classpath:mapper/*.xml
+  # 配置项：开启下划线到驼峰的自动转换. 作用：将数据库字段根据驼峰规则自动注入到对象属性
+  configuration:
+    map-underscore-to-camel-case: true
+# 通用 Mapper 配置
+mapper:
+  not-empty: false
+  identity: MYSQL
+  mappers: com.xkcoding.springbootdemomybatis.util.MyMapper
+# PageHelper 配置
+pagehelper:
+  helper-dialect: mysql
+  reasonable: true
+  support-methods-arguments: true
+  params: count=countSql
+```
+
+### SpringBootDemoMybatisApplication.java
+
+```java
+@SpringBootApplication
+@MapperScan(basePackages = {"com.xkcoding.springbootdemomybatis.mapper"})
+public class SpringBootDemoMybatisApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SpringBootDemoMybatisApplication.class, args);
+	}
+}
+```
+
+### schema.sql
+
+```sql
+SET FOREIGN_KEY_CHECKS=0;
+
+-- ----------------------------
+-- Table structure for `boot_user`
+-- ----------------------------
+DROP TABLE IF EXISTS `mybatis_user`;
+CREATE TABLE `mybatis_user` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `name` varchar(32) DEFAULT NULL,
+  `tel` varchar(11) DEFAULT NULL,
+  `create_time` datetime DEFAULT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+-- ----------------------------
+-- Records of boot_user
+-- ----------------------------
+INSERT INTO `mybatis_user` VALUES (1, 'klay', '13799008800', '2017-11-13 16:04:39');
+INSERT INTO `mybatis_user` VALUES (2, 'Tome', '18988991234', '2017-11-13 16:13:28');
+```
+
+### 其余代码
+
+详情请参见本demo。