PS:本教程是基于spring boot項目講解的

1、第一步肯定是新建項目涌矢，引入依賴?yán)?/h2>

pom文件如下：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.8</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>springboot-logback-async</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot-logback-async</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!-- 構(gòu)建成可運行的Web項目 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
                <!--  AOP 依賴必須加進來-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.20</version>
        </dependency>
        <!-- 打印日志需要 -->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.5</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

2掖举、新建兩個實體類 UserDto、Result娜庇，代碼如下：

import lombok.Data;

/**
 * body入?yún)? */
@Data
public class UserDto {
    private String userId;
    private String userName;
}

import lombok.AllArgsConstructor;
import lombok.Data;

/**
 * 返回對象
 * @param <T>
 */
@Data
@AllArgsConstructor
public class Result<T> {

    private static final int success = 0;
    private static final int fail = -1;

    private static final String successMsg = "請求成功";
    private static final String failMsg = "請求失敗";

    private int code;
    private String message;
    private T data;
    
    public static <T> Result<T> returnSuccess(T data) {
        return new Result<T>(success, successMsg, data);
    }

    public static <T> Result<T> returnFail(T data) {
        return new Result<T>(fail, failMsg, null);
    }
}

3塔次、新建一個測試接口類InitRest

import com.example.demo.dto.UserDto;
import com.example.demo.model.Result;
import org.springframework.web.bind.annotation.*;

//使用restful風(fēng)格
@RestController
public class InitRest {
    //測試get入?yún)?    @GetMapping("/hello")
    public Result<String> hello(@RequestParam String userId) {
        return Result.returnSuccess("Hello get...");
    }
    //測試body入?yún)?    @PostMapping("/hello")
    public Result<UserDto> hello(@RequestBody UserDto userDto) {
        userDto.setUserId("你的名字被修改啦方篮。。励负。");
        return Result.returnSuccess(userDto);
    }
}

4藕溅、關(guān)鍵的一步，新建一個AOP類：WebLog.java

import com.google.gson.Gson;
import lombok.extern.slf4j.Slf4j;
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.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.UUID;

@Slf4j
//下面兩個注解是必須的熄守，少一個都不行哦
@Aspect
@Configuration
public class WebLog {

    //標(biāo)記切入點蜈垮，為指定包下的所有類的所有public方法
    @Pointcut(value = "execution(public * com.example.demo.rest.*.* (*))")
    public void webLog() {
    }

    @Around(value = "webLog()")
    public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        String requestId = UUID.randomUUID().toString().replace("-", "");
        //打印入?yún)?        log.info("requestId={},請求入?yún)?{}", requestId, new Gson().toJson(joinPoint.getArgs()));

        Object object = joinPoint.proceed();
        //打印出參
        log.info("requestId={},請求出參 {}", requestId, new Gson().toJson(object));
        return object;
    }
}

5、OK裕照，整完了攒发，看一下目前的目錄結(jié)構(gòu)：

目錄結(jié)構(gòu)

6、啟動項目晋南，訪問接口惠猿，注意看日志打印哦

啟動成功

get請求

get請求日志

post請求

post請求日志

OK，完美實現(xiàn)负间，出入?yún)⑷罩敬蛴∨佳朔ê唵斡址奖悖泐I(lǐng)會了嘛政溃？趾访？？

關(guān)于此教程用到的幾個注解董虱，有不太清楚的朋友可留言詢問哦扼鞋！

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