日誌切面介面和方法demo
阿新 • • 發佈:2022-05-24
1. 定義切面
@Target(ElementType.METHOD) @Retention(RetentionPolicy.RUNTIME) public @interface Log { String value() default ""; }
2.切面類
package aspect; import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONArray; import com.alibaba.fastjson.JSONObject;
import org.apache.commons.collections.CollectionUtils;import org.apache.commons.lang.StringUtils; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Pointcut; import org.aspectj.lang.reflect.MethodSignature; import org.slf4j.Logger; importorg.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.core.LocalVariableTableParameterNameDiscoverer; import org.springframework.stereotype.Component; import java.lang.reflect.Method; import java.util.Objects; @Aspect @Component public classLogAspect { private Logger logger = LoggerFactory.getLogger(this.getClass()); @Pointcut("@annotation(Log)") //定義切面的類路徑 public void pointcut() { } @Around("pointcut()") public Object around(ProceedingJoinPoint point) { long beginTime = System.currentTimeMillis(); //增加返回值 Object proceed = null; try { // 執行方法 proceed = point.proceed(); } catch (Throwable e) { logger.error("切面異常:",e); } // 執行時長(毫秒) long time = System.currentTimeMillis() - beginTime; // 儲存日誌 saveLog(point, time,proceed); //關鍵,同時該引數作為入參儲存在資料庫中。 return proceed; } private void saveLog(ProceedingJoinPoint joinPoint, long time, Object proceed) { MethodSignature signature = (MethodSignature) joinPoint.getSignature(); Method method = signature.getMethod(); //TODO存入日誌表中 Log logAnnotation = method.getAnnotation(Log.class); if (logAnnotation != null) { // 註解上的描述 //Operation = (logAnnotation.value()); //TODO 操作名稱 } // 請求的方法名 String className = joinPoint.getTarget().getClass().getName(); String methodName = signature.getName(); //簡稱類名 String classNameSimple = joinPoint.getTarget().getClass().getSimpleName(); //Method = (classNameSimple + "." + methodName + "()"); //TODO 執行類和方法 // 請求的方法引數值 Object[] args = joinPoint.getArgs(); // 請求的方法引數名稱 LocalVariableTableParameterNameDiscoverer u = new LocalVariableTableParameterNameDiscoverer(); String[] paramNames = u.getParameterNames(method); if (args != null && paramNames != null) { String params = ""; for (int i = 0; i < args.length; i++) { logger.info(i+" paramNames[i]="+paramNames[i]+",args[i]="+GsonUtils.toJson(args[i])); params += " " + paramNames[i] + ": " + GsonUtils.toJson(args[i]); } //Params = (params); //TODO 方法引數 } //獲取關鍵引數,比如外部訂單號 Object argument = args[0]; //從引數中獲取out_order_no String jsonString = JSON.toJSONString(args[0]); String outOrderNo = StringUtils.EMPTY; if (argument instanceof String) { outOrderNo = argument.toString(); jsonString = JSON.toJSONString(args); } else if (isJSONObj(jsonString)) { JSONObject jsonObject = JSON.parseObject(jsonString); if (jsonObject.containsKey("out_order_no")) { outOrderNo = jsonObject.getString("out_order_no"); } } else if (isJSONArr(jsonString)) { JSONArray jsonArray = JSON.parseArray(jsonString); if (CollectionUtils.isNotEmpty(jsonArray) && Objects.nonNull(jsonArray.getJSONObject(0))) { JSONObject jsonObject = jsonArray.getJSONObject(0); if (jsonObject.containsKey("out_order_no")) { outOrderNo = jsonObject.getString("out_order_no"); } } } //OutOrderNo = (outOrderNo); //TODO 關鍵索引引數 //ReqTime = ((int) time); //TODO 請求時長 //查詢返回值 logger.info("target=" + joinPoint.getTarget()); logger.info("kind=" + joinPoint.getKind()); logger.info("proceed=" + proceed.toString()); //返回結果 //Resp = (GsonUtils.toJson(proceed)); //TODO 介面返回結果 // 儲存系統日誌 //saveSysLog(); //TODO save to database } public static boolean isJSONObj(String jsonStr){ if(StringUtils.isNotBlank(jsonStr) && jsonStr.startsWith("{") && jsonStr.endsWith("}")){ return true; } return false; } public static boolean isJSONArr(String jsonStr){ if(StringUtils.isNotBlank(jsonStr) && jsonStr.startsWith("[") && jsonStr.endsWith("]")){ return true; } return false; } }
3.測試類
@Log(value = "測試日誌切面介面") @GetMapping("/hello") public String hello(@RequestParam("out_order_no") String name){ logger.info("request param is [{name}]",name); LogEntity entity = new LogEntity(); entity.setOut_order_no("TB123456789"); String resp = log(entity); logger.info("request resp is [{resp}]",resp); return "hello"+name+",resp="+resp; } @Log("測試日誌切面方法") @Override public String log(LogEntity entity) { return "success-log:" + GsonUtils.toJson(entity); } public class LogEntity { private String out_order_no; public String getOut_order_no() { return out_order_no; } public void setOut_order_no(String out_order_no) { this.out_order_no = out_order_no; } }