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update MybatisPlus整合Redis二级缓存

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疯狂的狮子li 2021-06-10 21:18:58 +08:00
parent 57df2690da
commit 24da85fea3
4 changed files with 113 additions and 2 deletions
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102
ruoyi-common/src/main/java/com/ruoyi/common/core/mybatisplus/MybatisPlusRedisCache.java Normal file
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@ -0,0 +1,102 @@
package com.ruoyi.common.core.mybatisplus;
import cn.hutool.extra.spring.SpringUtil;
import com.ruoyi.common.core.redis.RedisCache;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.cache.Cache;
import org.springframework.data.redis.connection.RedisServerCommands;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.util.CollectionUtils;
import java.util.Collection;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
/**
* mybatis-redis 二级缓存
*
* @author Lion Li
*/
@Slf4j
public class MybatisPlusRedisCache implements Cache {
private final ReadWriteLock readWriteLock = new ReentrantReadWriteLock(true);
private RedisCache redisCache;
private String id;
public MybatisPlusRedisCache(final String id) {
if (id == null) {
throw new IllegalArgumentException("Cache instances require an ID");
}
this.id = id;
}
@Override
public String getId() {
return this.id;
}
@Override
public void putObject(Object key, Object value) {
if (redisCache == null) {
redisCache = SpringUtil.getBean(RedisCache.class);
}
if (value != null) {
redisCache.setCacheObject(key.toString(), value);
}
}
@Override
public Object getObject(Object key) {
if (redisCache == null) {
//由于启动期间注入失败，只能运行期间注入，这段代码可以删除
redisCache = SpringUtil.getBean(RedisCache.class);
}
try {
if (key != null) {
return redisCache.getCacheObject(key.toString());
}
} catch (Exception e) {
e.printStackTrace();
log.error("缓存出错");
}
return null;
}
@Override
public Object removeObject(Object key) {
if (redisCache == null) {
redisCache = SpringUtil.getBean(RedisCache.class);
}
if (key != null) {
redisCache.deleteObject(key.toString());
}
return null;
}
@Override
public void clear() {
log.debug("清空缓存");
if (redisCache == null) {
redisCache = SpringUtil.getBean(RedisCache.class);
}
Collection<String> keys = redisCache.keys("*:" + this.id + "*");
if (!CollectionUtils.isEmpty(keys)) {
redisCache.deleteObject(keys);
}
}
@Override
public int getSize() {
RedisTemplate<String, Object> redisTemplate = SpringUtil.getBean("redisTemplate");
Long size = redisTemplate.execute(RedisServerCommands::dbSize);
return size.intValue();
}
@Override
public ReadWriteLock getReadWriteLock() {
return this.readWriteLock;
}
}

5
ruoyi-demo/src/main/java/com/ruoyi/demo/mapper/TestDemoMapper.java
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@ -1,7 +1,9 @@
package com.ruoyi.demo.mapper;
import com.ruoyi.demo.domain.TestDemo;
import com.ruoyi.common.core.mybatisplus.MybatisPlusRedisCache;
import com.ruoyi.common.core.page.BaseMapperPlus;
import com.ruoyi.demo.domain.TestDemo;
import org.apache.ibatis.annotations.CacheNamespace;
/**
* 测试单表Mapper接口
@ -9,6 +11,7 @@ import com.ruoyi.common.core.page.BaseMapperPlus;
* @author Lion Li
* @date 2021-05-30
*/
@CacheNamespace(implementation = MybatisPlusRedisCache.class, eviction = MybatisPlusRedisCache.class)
public interface TestDemoMapper extends BaseMapperPlus<TestDemo> {
}

5
ruoyi-demo/src/main/java/com/ruoyi/demo/mapper/TestTreeMapper.java
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@ -1,7 +1,9 @@
package com.ruoyi.demo.mapper;
import com.ruoyi.demo.domain.TestTree;
import com.ruoyi.common.core.mybatisplus.MybatisPlusRedisCache;
import com.ruoyi.common.core.page.BaseMapperPlus;
import com.ruoyi.demo.domain.TestTree;
import org.apache.ibatis.annotations.CacheNamespace;
/**
* 测试树表Mapper接口
@ -9,6 +11,7 @@ import com.ruoyi.common.core.page.BaseMapperPlus;
* @author Lion Li
* @date 2021-05-30
*/
@CacheNamespace(implementation = MybatisPlusRedisCache.class, eviction = MybatisPlusRedisCache.class)
public interface TestTreeMapper extends BaseMapperPlus<TestTree> {
}

3
ruoyi-generator/src/main/resources/vm/java/mapper.java.vm
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@ -2,6 +2,8 @@ package ${packageName}.mapper;
import ${packageName}.domain.${ClassName};
import com.ruoyi.common.core.page.BaseMapperPlus;
import com.ruoyi.common.core.mybatisplus.MybatisPlusRedisCache;
import org.apache.ibatis.annotations.CacheNamespace;
/**
* ${functionName}Mapper接口
@ -9,6 +11,7 @@ import com.ruoyi.common.core.page.BaseMapperPlus;
* @author ${author}
* @date ${datetime}
*/
@CacheNamespace(implementation = MybatisPlusRedisCache.class, eviction = MybatisPlusRedisCache.class)
public interface ${ClassName}Mapper extends BaseMapperPlus<${ClassName}> {
}