【java】Spring常用配置

本当迷

2022 年 07 月 30 日

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java

~~*我的个老天爷*~~

## JdbcConfig

```java
package com.bdmcom.confing;

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;

import javax.sql.DataSource;

/**
 * @code Description
 * @code author 本当迷
 * @code date 2022/7/30-19:58
 */
public class JdbcConfig {

@Value("${jdbc.driver}")
    private String drive;
    @Value("${jdbc.url}")
    private String url;
    @Value("${jdbc.username}")
    private String username;
    @Value("${jdbc.password}")
    private String password;

@Bean
    public DataSource dataSource(){
        final DruidDataSource dataSource = new DruidDataSource();
        dataSource.setDriverClassName(drive);
        dataSource.setUrl(url);
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        return dataSource;
    }
}

```

## MybatisConfig

```java
package com.bdmcom.confing;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.context.annotation.Bean;

import javax.sql.DataSource;

/**
 * @code Description
 * @code author 本当迷
 * @code date 2022/7/30-20:06
 */
public class MybatisConfig {
    // 类型别名的包
    @Bean
    public SqlSessionFactoryBean sqlSessionFactory(DataSource dataSource){
        final SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        factoryBean.setTypeAliasesPackage("com.bdmcom.domain");
        factoryBean.setDataSource(dataSource);
        return factoryBean;
    }

// 映射的包
    @Bean
    public MapperScannerConfigurer mapperScannerConfigurer(){
        final MapperScannerConfigurer msc = new MapperScannerConfigurer();
        msc.setBasePackage("com.bdmcom.dao");
        return msc;
    }
}

```

## SpringConfig

```java
package com.bdmcom.confing;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.annotation.PropertySource;

/**
 * @code Description
 * @code author 本当迷
 * @code date 2022/7/30-18:53
 */
@Configuration
@ComponentScan("com.bdmcom")
@PropertySource("classpath:jdbc.properties")
@Import({JdbcConfig.class, MybatisConfig.class})
public class SpringConfig {

}

```

## JUnit测试配置

```java
package com.bdmcom.service;

import com.bdmcom.confing.SpringConfig;
import com.bdmcom.domain.User;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**
 * @code Description
 * @code author 本当迷
 * @code date 2022/7/30-20:32
 */

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = SpringConfig.class)
public class UserServiceText {

@Autowired
    private UserService userService;

@Test
    public void testFindById(){
        final User byId = userService.findById(2);
        System.out.println(byId);
    }
}

```

最后修改：2022 年 07 月 30 日