package?com.luo.redis.cache;

import?java.io.Serializable;
import?java.util.concurrent.TimeUnit;
import?org.aopalliance.intercept.MethodInterceptor;
import?org.aopalliance.intercept.MethodInvocation;
import?org.springframework.data.redis.core.RedisTemplate;
import?org.springframework.data.redis.core.ValueOperations;

public?class?MethodCacheInterceptor?implements?MethodInterceptor?{
	
	private?RedisTemplateject>?redisTemplate;
	private?Long?defaultCacheExpireTime?=?10l;?//?緩存默認的過期時間這里設置了10秒
	
	public?object?invoke（MethodInvocation?invocation）?throws?Throwable?{
		object?value?=?null;

		String?targetName?=?invocation.getThis（）.getClass（）.getName（）;
		String?methodName?=?invocation.getMethod（）.getName（）;

		object[]?arguments?=?invocation.getArguments（）;
		String?key?=?getCacheKey（targetName?methodName?arguments）;

		try?{
			//?判斷是否有緩存
			if?（exists（key））?{
				return?getCache（key）;
			}
			//?寫入緩存
			value?=?invocation.proceed（）;
			if?（value?!=?null）?{
				final?String?tkey?=?key;
				final?object?tvalue?=?value;
				new?Thread（new?Runnable（）?{
					public?void?run（）?{
						setCache（tkey?tvalue?defaultCacheExpireTime）;
					}
				}）.start（）;
			}
		}?catch?（Exception?e）?{
			e.printStackTrace（）;
			if?（value?==?null）?{
				return?invocation.proceed（）;
			}
		}
		return?value;
	}

	/**
	?*?創建緩存key
	?*
	?*?@param?targetName
	?*?@param?methodName
	?*?@param?arguments
	?*/
	private?String?getCacheKey（String?targetName?String?methodName
			object[]?arguments）?{
		StringBuffer?sbu?=?new?StringBuffer（）;
		sbu.append（targetName）.append（“_“）.append（methodName）;
		if?（（arguments?!=?null）?&&?（arguments.length?!=?0））?{
			for?（int?i?=?0;?i?				sbu.append（“_“）.append（arguments[i]）;
			}
		}
		return?sbu.toString（）;
	}


	
	/**
	?*?判斷緩存中是否有對應的value
	?*?
	?*?@param?key
	?*?@return
	?*/
	public?boolean?exists（final?String?key）?{
		return?redisTemplate.hasKey（key）;
	}

	/**
	?*?讀取緩存
	?*?
	?*?@param?key
	?*?@return
	?*/
	public?object?getCache（final?String?key）?{
		object?result?=?null;
		ValueOperationsject>?operations?=?redisTemplate
				.opsForValue（）;
		result?=?operations.get（key）;
		return?result;
	}



	/**
	?*?寫入緩存
	?*?
	?*?@param?key
	?*?@param?value
	?*?@return
	?*/
	public?boolean?setCache（final?String?key?object?value?Long?expireTime）?{
		boolean?result?=?false;
		try?{
			ValueOperationsject>?operations?=?redisTemplate
					.opsForValue（）;
			operations.set（key?value）;
			redisTemplate.expire（key?expireTime?TimeUnit.SECONDS）;
			result?=?true;
		}?catch?（Exception?e）?{
			e.printStackTrace（）;
		}
		return?result;
	}

	public?void?setRedisTemplate（
			RedisTemplateject>?redisTemplate）?{
		this.redisTemplate?=?redisTemplate;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-01-14?08:33??redis_project\
?????文件????????1431??2016-01-13?21:22??redis_project\.classpath
?????文件?????????565??2016-01-13?21:22??redis_project\.project
?????目錄???????????0??2016-01-14?08:33??redis_project\.settings\
?????文件?????????131??2016-01-13?22:12??redis_project\.settings\org.eclipse.core.resources.prefs
?????文件?????????243??2016-01-13?21:22??redis_project\.settings\org.eclipse.jdt.core.prefs
?????文件??????????90??2016-01-13?21:22??redis_project\.settings\org.eclipse.m2e.core.prefs
?????文件????????3306??2016-01-13?21:26??redis_project\pom.xml
?????目錄???????????0??2016-01-14?08:33??redis_project\src\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\java\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\java\com\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\java\com\luo\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\java\com\luo\redis\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\java\com\luo\redis\cache\
?????文件????????2953??2016-01-14?09:20??redis_project\src\main\java\com\luo\redis\cache\MethodCacheInterceptor.java
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\java\com\luo\service\
?????文件?????????112??2016-01-13?22:05??redis_project\src\main\java\com\luo\service\RedisTestService.java
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\java\com\luo\service\impl\
?????文件?????????337??2016-01-13?23:48??redis_project\src\main\java\com\luo\service\impl\RedisTestServiceImpl.java
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\resources\
?????文件????????3313??2016-01-14?09:23??redis_project\src\main\resources\application.xml
?????目錄???????????0??2016-01-14?08:33??redis_project\src\main\resources\properties\
?????文件?????????612??2016-01-14?09:33??redis_project\src\main\resources\properties\redis.properties
?????目錄???????????0??2016-01-14?08:33??redis_project\src\test\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\test\java\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\test\java\com\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\test\java\com\luo\
?????目錄???????????0??2016-01-14?08:33??redis_project\src\test\java\com\luo\baseTest\
?????文件?????????573??2016-01-12?23:27??redis_project\src\test\java\com\luo\baseTest\SpringTestCase.java
?????目錄???????????0??2016-01-14?08:33??redis_project\src\test\java\com\luo\service\
............此處省略24個文件信息