本地日志文件输出成HTML格式

最新推荐文章于 2025-06-23 07:02:10 发布

原创最新推荐文章于 2025-06-23 07:02:10 发布 · 1k 阅读

0 ·

CC 4.0 BY-SA版权

Java 同时被 2 个专栏收录

1 篇文章

订阅专栏

1 篇文章

订阅专栏

本文介绍了一种分布式环境中，从不同worker节点收集并格式化日志的方法，通过服务端API调用和HTTP请求实现日志的获取，再经过HTML格式转换后，使用Thymeleaf模板引擎在前端展示。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

需求：分布式应用 server 获取不同worker应用日志展示到前台

服务端的service方法，把

@Service
public class LogService {
    @Value("${client.dataxlogpath}")
    private String dataXLogPath;

    public String getLog(String  taskId) {

        File file = new File(dataXLogPath + "/" +taskId + ".log");
        StringBuffer stringBuffer = new StringBuffer();
        try
        {
            BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
            String line = "";
            //替换成html段落格式
            while ((line = bufferedReader.readLine()) != null) {
                stringBuffer.append(line.replaceAll("^", "<p>").replaceAll("$", "</p>").replaceAll("\\t", "&nbsp;"));
            }
            bufferedReader.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        String log = stringBuffer.toString();

        return log;
    }

    public static void main(String[] args) {
        new LogService().getLog("1");
    }
}

服务端的service


import org.apache.commons.lang3.StringUtils;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;


public String getJobLog(String taskId,String workerAddress){
        StringBuffer logMessage = new StringBuffer();
        long timestamp = System.currentTimeMillis();

        


        CloseableHttpClient client = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        
        String url = "http://"+workerAddress+":9002/queryLog?taskId="+taskId;

        System.out.println(url);
        HttpGet get = new HttpGet(url);

        get.setHeader("local_name", "zh_CN");
        get.setHeader("Content-Type", "application/json");



        try {
            response = client.execute(get);
            BufferedReader br = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
            String s = null;
            while ((s = br.readLine()) != null) {
                logMessage.append(s);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
                client.close();

            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return logMessage.toString();

    }

服务端controller

@RequestMapping("/joblog")
public String abController(String taskId, String workerAddress, ModelMap modelMap) {
        String instanceLog=abService.getJobLog(taskId,workerAddress).replaceAll("\r\n","<br/>").replaceAll("\\\\","");
        modelMap.addAttribute("log",instanceLog);
        return "loginfo";
}

前端显示基于 Thymeleaf

<!DOCTYPE html>
<html xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>111</title>
    <!-- Tell the browser to be responsive to screen width -->
    <meta content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" name="viewport">
    <style type="text/css">
        body {
            background-color: #000000;
            color: greenyellow;
        }
    </style>

</head>

<body>
<p th:utext="${log}"></p>
</body>
</html>