使用log4j記錄日誌
log4j.properties:
#log4j.rootLogger=CONSOLE,info,error,DEBUG
log4j.rootLogger=info,error,CONSOLE,DEBUG
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.logger.info=info
log4j.appender.info=org.apache.log4j.DailyRollingFileAppender
log4j.appender.info.layout=org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.appender.info.datePattern='.'yyyy-MM-dd
log4j.appender.info.Threshold = info
log4j.appender.info.append=true
#log4j.appender.info.File=/home/admin/pms-api-services/logs/info/api_services_info
log4j.appender.info.File=/Users/dddd/Documents/testspace/pms-api-services/logs/info/api_services_info
log4j.logger.error=error
log4j.appender.error=org.apache.log4j.DailyRollingFileAppender
log4j.appender.error.layout=org.apache.log4j.PatternLayout
log4j.appender.error.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.appender.error.datePattern='.'yyyy-MM-dd
log4j.appender.error.Threshold = error
log4j.appender.error.append=true
#log4j.appender.error.File=/home/admin/pms-api-services/logs/error/api_services_error
log4j.appender.error.File=/Users/dddd/Documents/testspace/pms-api-services/logs/error/api_services_error
log4j.logger.DEBUG=DEBUG
log4j.appender.DEBUG=org.apache.log4j.DailyRollingFileAppender
log4j.appender.DEBUG.layout=org.apache.log4j.PatternLayout
log4j.appender.DEBUG.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.appender.DEBUG.datePattern='.'yyyy-MM-dd
log4j.appender.DEBUG.Threshold = DEBUG
log4j.appender.DEBUG.append=true
#log4j.appender.DEBUG.File=/home/admin/pms-api-services/logs/debug/api_services_debug
log4j.appender.DEBUG.File=/Users/dddd/Documents/testspace/pms-api-services/logs/debug/api_services_debug
日誌代碼使用:
private static final Logger logger = LoggerFactory.getLogger(IndexController.class);
Maven依賴:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.RELEASE</version>
</parent>
<dependencies>
<!-- SpringBoot 核心組件 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<!-- spring boot start -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<!-- 排除自帶的logback依賴 -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- springboot-log4j -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j</artifactId>
<version>1.3.8.RELEASE</version>
</dependency>
</dependencies>
使用AOP統一處理Web請求日誌
POM文件新增依賴:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
新增日誌處理類:
@Aspect
@Component
public class WebLogAspect {
private static final Logger logger = LoggerFactory.getLogger(WebLogAspect.class);
@Pointcut("execution(public * com.itmayiedu.controller.*.*(..))")
public void webLog() {
}
@Before("webLog()")
public void doBefore(JoinPoint joinPoint) throws Throwable {
// 接收到請求,記錄請求內容
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = attributes.getRequest();
// 記錄下請求內容
logger.info("URL : " + request.getRequestURL().toString());
logger.info("HTTP_METHOD : " + request.getMethod());
logger.info("IP : " + request.getRemoteAddr());
Enumeration<String> enu = request.getParameterNames();
while (enu.hasMoreElements()) {
String name = (String) enu.nextElement();
logger.info("name:{},value:{}", name, request.getParameter(name));
}
}
@AfterReturning(returning = "ret", pointcut = "webLog()")
public void doAfterReturning(Object ret) throws Throwable {
// 處理完請求,返回內容
logger.info("RESPONSE : " + ret);
}
}
Spring Boot集成lombok讓代碼更簡潔
pom依賴:
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
實體類:
@Slf4j
@Data
public class UserEntity {
// @Getter
// @Setter
private String userName;
// @Getter
// @Setter
private Integer age;
@Override
public String toString() {
return "UserEntity [userName=" + userName + ", age=" + age + "]";
}
public static void main(String[] args) {
UserEntity userEntity = new UserEntity();
userEntity.setUserName("zhangsan");
userEntity.setAge(20);
System.out.println(userEntity.toString());
log.info("####我是日誌##########");
}
}
緩存支持
pom文件引入:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
</dependency>
新建ehcache.xml:
<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd"
updateCheck="false">
<diskStore path="java.io.tmpdir/Tmp_EhCache" />
<!-- 默認配置 -->
<defaultCache maxElementsInMemory="5000" eternal="false"
timeToIdleSeconds="120" timeToLiveSeconds="120"
memoryStoreEvictionPolicy="LRU" overflowToDisk="false" />
<cache name="baseCache" maxElementsInMemory="10000"
maxElementsOnDisk="100000" />
</ehcache>
ehcache.xml代碼解釋:
2. name:緩存名稱。
3. maxElementsInMemory:緩存最大個數。
4. eternal:對象是否永久有效,一但設置了,timeout將不起作用。
5. timeToIdleSeconds:設置對象在失效前的允許閒置時間(單位:秒)。僅當eternal=false對象不是永久有效時使用,可選屬性,默認值是0,也就是可閒置時間無窮大。
6. timeToLiveSeconds:設置對象在失效前允許存活時間(單位:秒)。最大時間介於創建時間和失效時間之間。僅當eternal=false對象不是永久有效時使用,默認是0.,也就是對象存活時間無窮大。
7. overflowToDisk:當內存中對象數量達到maxElementsInMemory時,Ehcache將會對象寫到磁盤中。
8. diskSpoolBufferSizeMB:這個參數設置DiskStore(磁盤緩存)的緩存區大小。默認是30MB。每個Cache都應該有自己的一個緩衝區。
9. maxElementsOnDisk:硬盤最大緩存個數。
10. diskPersistent:是否緩存虛擬機重啓期數據 Whether the disk store persists between restarts of the Virtual Machine. The default value is false.
11. diskExpiryThreadIntervalSeconds:磁盤失效線程運行時間間隔,默認是120秒。
12. memoryStoreEvictionPolicy:當達到maxElementsInMemory限制時,Ehcache將會根據指定的策略去清理內存。默認策略是LRU(最近最少使用)。你可以設置爲FIFO(先進先出)或是LFU(較少使用)。
clearOnFlush:內存數量最大時是否清除。
代碼使用:
@CacheConfig(cacheNames = "baseCache")
public interface UserMapper {
@Select("select * from users where name=#{name}")
@Cacheable
UserEntity findName(@Param("name") String name);
}
緩存清除:
@Autowired
private CacheManager cacheManager;
@RequestMapping("/remoKey")
public void remoKey() {
cacheManager.getCache("baseCache").clear();
}
項目啓動類加上緩存註解:
@EnableCaching // 開啓緩存註解