java拦截请求参数

1.日志注解类

import org.springframework.core.annotation.AliasFor;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * 日志注解类
 *
 */
@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface Log {
    /**
     * 日志描述，这里使用了@AliasFor 别名。spring提供的
     * @return
     */
    @AliasFor("desc")
    String value() default "";

    /**
     * 日志描述
     * @return
     */
    @AliasFor("value")
    String desc() default "";

    /**
     * 是否忽略
     * @return
     */
    boolean ignore() default false;
}

2.日志切面类

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.serializer.SerializerFeature;
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;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;


/**
 * 日志切面类
 */
@Aspect  //申明一个切面
@Component
public class LogAspect {

    private static final Logger log = LoggerFactory.getLogger(LogAspect.class);
    private static final String dateFormat = "yyyy-MM-dd HH:mm:ss";
    private static final String STRING_START = "\n>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n";
    private static final String STRING_END   = "\n<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n";

    //设置切入点
    @Pointcut("within(@org.springframework.web.bind.annotation.RestController *)")
    public void serviceLog() {
    }

    /**
     * 切换方法，记录日志
     * @param joinPoint
     * @return
     * @throws Throwable
     */
    @Around("serviceLog()")
    public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        Method method = signature.getMethod();
        Class targetClass = method.getDeclaringClass();

        StringBuffer classAndMethod = new StringBuffer();

        Log classAnnotation = targetClass.getAnnotation(Log.class);
        Log methodAnnotation = method.getAnnotation(Log.class);

        if (classAnnotation != null) {
            if (classAnnotation.ignore()) {
                return joinPoint.proceed();
            }
            classAndMethod.append(classAnnotation.value()).append("-");
        }

        if (methodAnnotation != null) {
            if (methodAnnotation.ignore()) {
                return joinPoint.proceed();
            }
            classAndMethod.append(methodAnnotation.value());
        }

        String target = targetClass.getName() + "#" + method.getName();

        String params = null;
        params = JSONObject.toJSONStringWithDateFormat(joinPoint.getArgs(), dateFormat, SerializerFeature.WriteMapNullValue);

        log.info(STRING_START + "{} 开始调用--> {} 参数:{} 参数名称:{}", classAndMethod.toString(), target, params, JSON.toJSONString(signature.getParameterNames()));

        long start = System.currentTimeMillis();
        Object result = joinPoint.proceed();
        long timeConsuming = System.currentTimeMillis() - start;

        JSONObject.toJSONStringWithDateFormat(joinPoint.getArgs(), dateFormat, SerializerFeature.WriteMapNullValue) ;
        log.info("\n{} 调用结束<-- {} 返回值:{} 耗时:{}ms" + STRING_END, classAndMethod.toString(), target, JSONObject.toJSONStringWithDateFormat(result, dateFormat, SerializerFeature.WriteMapNullValue), timeConsuming);
        return result;
    }
}