springboot mybatisPlus配置
1.pom依赖
<?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.</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5..RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.*</groupId>
<artifactId>bus</artifactId>
<version>0.0.-SNAPSHOT</version>
<name>bus</name>
<description></description> <properties>
<java.version>1.8</java.version>
<qiniu.version>[7.2., 7.2.]</qiniu.version>
<mybatisplus.spring.boot.version>1.0.</mybatisplus.spring.boot.version>
<mybatisplus.version>2.2.</mybatisplus.version>
<druid.version>1.1.</druid.version> </properties> <dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>jackson-databind</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
<exclusion>
<artifactId>slf4j-api</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.qiniu</groupId>
<artifactId>qiniu-java-sdk</artifactId>
<version>${qiniu.version}</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatisplus-spring-boot-starter</artifactId>
<version>${mybatisplus.spring.boot.version}</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus</artifactId>
<version>${mybatisplus.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>${druid.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.velocity/velocity -->
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity</artifactId>
<version>1.7</version>
</dependency> </dependencies> <build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
</configuration>
</plugin>
</plugins>
</build> </project>
2.配置数据源:
mybatis-plus: mapper-locations: classpath:mapper/*.xml
#实体扫描,多个package用逗号或者分号分隔
typeAliasesPackage: com.*.*.entity
global-config:
#主键类型 0:"数据库ID自增", 1:"用户输入ID",2:"全局唯一ID (数字类型唯一ID)", 3:"全局唯一ID UUID";
id-type: 0
#字段策略 0:"忽略判断",1:"非 NULL 判断"),2:"非空判断"
field-strategy: 1
sql-injector: com.baomidou.mybatisplus.mapper.LogicSqlInjector configuration:
map-underscore-to-camel-case: true
cache-enabled: false
#配置JdbcTypeForNull
jdbc-type-for-null: 'null'
call-setters-on-nulls: true
spring:
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driverClassName: com.mysql.jdbc.Driver
druid:
first: #数据源1
url: jdbc:mysql://:3306/fast?allowMultiQueries=true&useUnicode=true&characterEncoding=UTF-8
username:
password:
second: #数据源2
url: jdbc:mysql://localhost:3306/fast?allowMultiQueries=true&useUnicode=true&characterEncoding=UTF-8
username:
password:
initial-size: 10
max-active: 100
min-idle: 10
max-wait: 60000
pool-prepared-statements: true
max-pool-prepared-statement-per-connection-size: 20
time-between-eviction-runs-millis: 60000
min-evictable-idle-time-millis: 300000
#validation-query: SELECT 1 FROM DUAL
test-while-idle: true
test-on-borrow: false
test-on-return: false
stat-view-servlet:
enabled: true
url-pattern: /druid/*
#login-username: admin
#login-password: admin
filter:
stat:
log-slow-sql: true
slow-sql-millis: 1000
merge-sql: false
wall:
config:
multi-statement-allow: true
public interface DataSourceNames {
String FIRST = "first";
String SECOND = "second";
}
import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource; import javax.sql.DataSource;
import java.util.Map; /**
* 动态数据源
*/
public class DynamicDataSource extends AbstractRoutingDataSource {
private static final ThreadLocal<String> contextHolder = new ThreadLocal<>(); public DynamicDataSource(DataSource defaultTargetDataSource, Map<Object, Object> targetDataSources) {
super.setDefaultTargetDataSource(defaultTargetDataSource);
super.setTargetDataSources(targetDataSources);
super.afterPropertiesSet();
} @Override
protected Object determineCurrentLookupKey() {
return getDataSource();
} public static void setDataSource(String dataSource) {
contextHolder.set(dataSource);
} public static String getDataSource() {
return contextHolder.get();
} public static void clearDataSource() {
contextHolder.remove();
} }
import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary; import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map; @Configuration
public class DynamicDataSourceConfig { @Bean
@ConfigurationProperties("spring.datasource.druid.first")
public DataSource firstDataSource(){
return DruidDataSourceBuilder.create().build();
} @Bean
@ConfigurationProperties("spring.datasource.druid.second")
public DataSource secondDataSource(){
return DruidDataSourceBuilder.create().build();
} @Bean
@Primary
public DynamicDataSource dataSource(DataSource firstDataSource, DataSource secondDataSource) {
Map<Object, Object> targetDataSources = new HashMap<>();
targetDataSources.put(DataSourceNames.FIRST, firstDataSource);
targetDataSources.put(DataSourceNames.SECOND, secondDataSource);
return new DynamicDataSource(firstDataSource, targetDataSources);
}
}
3.根据表自动生成代码
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.rules.DbType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy; public class Generator { public static void main(String[] args) {
String packageName = "com.*.*";
boolean serviceNameStartWithI = false;//auth -> UserService, 设置成true: auth -> IUserService
generateByTables(serviceNameStartWithI, packageName, "saytime", "fast", "user"); System.out.println("completed...");
} private static void generateByTables(boolean serviceNameStartWithI, String packageName, String author, String database, String... tableNames) {
GlobalConfig config = new GlobalConfig();
String dbUrl = "jdbc:mysql://*:3306/" + database + "?useUnicode=true&characterEncoding=utf8&autoReconnect=true&useSSL=false";
DataSourceConfig dataSourceConfig = new DataSourceConfig();
dataSourceConfig.setDbType(DbType.MYSQL)
.setUrl(dbUrl)
.setUsername("")
.setPassword("")
.setDriverName("com.mysql.jdbc.Driver");
StrategyConfig strategyConfig = new StrategyConfig();
strategyConfig
.setCapitalMode(true)
.setEntityLombokModel(false)
.setDbColumnUnderline(true)
.setNaming(NamingStrategy.underline_to_camel)
// .setSuperMapperClass("cn.saytime.mapper.BaseMapper")
.setInclude(tableNames);//修改替换成你需要的表名,多个表名传数组
config.setActiveRecord(false)
.setAuthor(author)
.setOutputDir("d:\\codeGen")
.setFileOverride(true)
.setEnableCache(false);
if (!serviceNameStartWithI) {
config.setServiceName("%sService");
}
new AutoGenerator().setGlobalConfig(config)
.setDataSource(dataSourceConfig)
.setStrategy(strategyConfig)
.setPackageInfo(
new PackageConfig()
.setParent(packageName)
.setController("web")
.setEntity("entity")
.setMapper("dao")
.setService("service")
.setServiceImpl("service.impl")
.setXml("mapper")
).execute();
} }
4.测试
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner; import java.util.List; @RunWith(SpringRunner.class)
@SpringBootTest
public class SpringbootMybatisPlusApplicationTests { @Autowired
private SysUserService userService; @Test
public void contextLoads() { // 所有用户
List<SysUser> users = userService.selectList(null);
System.out.println(users); } }
5.启动文件添加注解
@MapperScan(basePackages = "com.*.dao")
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