ELK 日志分析系统

// src/main/java/com/example/elk/controller/LogController.java
package com.example.elk.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;

@RestController
@RequestMapping("/api/logs")
public class LogController {

    private static final Logger logger = LoggerFactory.getLogger(LogController.class);

    @GetMapping("/test")
    public Map<String, Object> testLog() {
        logger.info("收到测试日志请求");
        logger.debug("调试信息：用户访问了测试接口");
        logger.warn("警告：这是一个测试警告");
        logger.error("错误：这是一个测试错误");

        Map<String, Object> result = new HashMap<>();
        result.put("message", "日志测试成功");
        result.put("timestamp", System.currentTimeMillis());

        return result;
    }

    @PostMapping("/custom")
    public Map<String, Object> customLog(@RequestBody Map<String, String> request) {
        String message = request.get("message");
        String level = request.get("level");

        switch (level.toLowerCase()) {
            case "debug":
                logger.debug("自定义调试日志: {}", message);
                break;
            case "warn":
                logger.warn("自定义警告日志: {}", message);
                break;
            case "error":
                logger.error("自定义错误日志: {}", message);
                break;
            default:
                logger.info("自定义信息日志: {}", message);
        }

        Map<String, Object> result = new HashMap<>();
        result.put("status", "success");
        result.put("logged_message", message);
        result.put("level", level);

        return result;
    }
}

// src/main/java/com/example/elk/ElkDemoApplication.java
package com.example.elk;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class ElkDemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(ElkDemoApplication.class, args);
    }
}