https://github.com/scienjus/mybatis-redis-counter

use redis to counting in mybatis, non invasive and easy to use / 在MyBatis项目中使用Redis辅助计数，使用简单且无侵入性
https://github.com/scienjus/mybatis-redis-counter

Last synced: 24 days ago
JSON representation

use redis to counting in mybatis, non invasive and easy to use / 在MyBatis项目中使用Redis辅助计数，使用简单且无侵入性

• Host: GitHub
• URL: https://github.com/scienjus/mybatis-redis-counter
• Owner: ScienJus
• Created: 2016-02-06T15:50:15.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2016-02-15T08:43:02.000Z (almost 9 years ago)
• Last Synced: 2023-02-28T19:56:38.909Z (almost 2 years ago)
• Language: Java
• Homepage:
• Size: 37.1 KB
• Stars: 3
• Watchers: 2
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# MyBatis Redis Counter

use redis to counting in mybatis, non invasive and easy to use

[中文文档][1]

### Quick Start

Add the Maven dependency:

repository:

```

    scienjus-mvn-repo

    https://raw.github.com/ScienJus/maven/snapshot/

    

        true

        always

    

```

dependency:

```

    com.scienjus

    mybatis-redis-counter

    1.0-SNAPSHOT

```

Add `QueryCounterInterceptor` to mybatis plugins:

```

JedisPool jedisPool = new JedisPool("127.0.0.1", 6379);

QueryCounterInterceptor queryCounterInterceptor = new QueryCounterInterceptor();

        queryCounterInterceptor.setJedisPool(jedisPool);     

//... env config   

Configuration configuration = new Configuration(environment);

configuration.addInterceptor(queryCounterInterceptor);

//...  other config

SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();

SqlSessionFactory factory = builder.build(configuration);

```

Or use `spring-mybatis`:

```

@Bean

public SqlSessionFactory sqlSessionFactory() throws Exception {

    final SqlSessionFactoryBean sqlSessionFactory = new SqlSessionFactoryBean();

    sqlSessionFactory.setDataSource(dataSource());

    sqlSessionFactory.setPlugins(new Interceptor[]{queryCounterInterceptor()});

    //... other config

    return sqlSessionFactory.getObject();

}

@Bean

public QueryCounterInterceptor queryCounterInterceptor() {

    QueryCounterInterceptor queryCounterInterceptor = new QueryCounterInterceptor();

    queryCounterInterceptor.setJedisPool(jedisPool());

    return queryCounterInterceptor;

}

@Bean

public JedisPool jedisPool() {

    return new JedisPool("127.0.0.1", 6379);

}

```

Then just need to add some annotations and methods in your model:

```

@Counter

public class User {

    //primary key

    @Id	

    private Integer id;

    private String name;

    // means this is a counter field

    @Field	

    private int followerCount;

    

    public int setFollowerCount(int followerCount) {

    	this.followerCount = followerCount;

    	return this.followerCount;

    }

    

    public int getFollowerCount() {

    	return this.followerCount

    }

	//increment

    public int incrFollowerCount() {

        return 0;

    }

	//decrement

    public int decrFollowerCount() {

        return 0;

    }

}

```

It should be working like this

```

User user = userMapper.get(USER_ID);

user.setFollowerCount(10);

int retVal = user.incrFollowerCount();

user = userMapper.get(USER_ID);		//another user instance with same id

Assert.assertEquals(retVal, 11);

Assert.assertEquals(user.getFollowerCount(), 11);

```

[1]: ./zh.md