web日志预处理（hadoop java），预处理hadoop

public class WebLogBean {

    private String remote_addr;// 记录客户端的ip地址

    private String remote_user;// 记录客户端用户名称,忽略属性"-"

    private String time_local;// 记录访问时间与时区

    private String request;// 记录请求的url与http协议

    private String status;// 记录请求状态；成功是200

    private String body_bytes_sent;// 记录发送给客户端文件主体内容大小

    private String http_referer;// 用来记录从那个页面链接访问过来的

    private String http_user_agent;// 记录客户浏览器的相关信息

    private boolean valid = true;// 判断数据是否合法

public String getRemote_addr() {

return remote_addr;

}

public void setRemote_addr(String remote_addr) {

this.remote_addr = remote_addr;

}

public String getRemote_user() {

return remote_user;

}

public void setRemote_user(String remote_user) {

this.remote_user = remote_user;

}

public String getTime_local() {

return time_local;

}

public void setTime_local(String time_local) {

this.time_local = time_local;

}

public String getRequest() {

return request;

}

public void setRequest(String request) {

this.request = request;

}

public String getStatus() {

return status;

}

public void setStatus(String status) {

this.status = status;

}

public String getBody_bytes_sent() {

return body_bytes_sent;

}

public void setBody_bytes_sent(String body_bytes_sent) {

this.body_bytes_sent = body_bytes_sent;

}

public String getHttp_referer() {

return http_referer;

}

public void setHttp_referer(String http_referer) {

this.http_referer = http_referer;

}

public String getHttp_user_agent() {

return http_user_agent;

}

public void setHttp_user_agent(String http_user_agent) {

this.http_user_agent = http_user_agent;

}

public boolean isValid() {

return valid;

}

public void setValid(boolean valid) {

this.valid = valid;

}

@Override

public String toString() {

        StringBuilder sb = new StringBuilder();

        sb.append(this.valid);

        sb.append("\001").append(this.remote_addr);

        sb.append("\001").append(this.remote_user);

        sb.append("\001").append(this.time_local);

        sb.append("\001").append(this.request);

        sb.append("\001").append(this.status);

        sb.append("\001").append(this.body_bytes_sent);

        sb.append("\001").append(this.http_referer);

        sb.append("\001").append(this.http_user_agent);

        return sb.toString();

}

}

public class WebLogParser {

    public static WebLogBean parser(String line) {

        WebLogBean webLogBean = new WebLogBean();

        String[] arr = line.split(" ");

        if (arr.length > 11) {

        webLogBean.setRemote_addr(arr[0]);

        webLogBean.setRemote_user(arr[1]);

        webLogBean.setTime_local(arr[3].substring(1));

        webLogBean.setRequest(arr[6]);

        webLogBean.setStatus(arr[8]);

        webLogBean.setBody_bytes_sent(arr[9]);

        webLogBean.setHttp_referer(arr[10]);

            if (arr.length > 12) {

            webLogBean.setHttp_user_agent(arr[11] + " " + arr[12]);

            } else {

            webLogBean.setHttp_user_agent(arr[11]);

            }

            if (Integer.parseInt(webLogBean.getStatus()) >= 400) {// 大于400，HTTP错误

            webLogBean.setValid(false);

            }

        } else {

        webLogBean.setValid(false);

        }

        return webLogBean;

    }

    public static String parserTime(String time) {

    time.replace("/", "-");

    return time;

    }

}

public class WeblogPreProcess {

static class WeblogPreProcessMapper extends Mapper<LongWritable, Text, Text, NullWritable> {

Text k = new Text();

NullWritable v = NullWritable.get();

@Override

protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {

String line = value.toString();

WebLogBean webLogBean = WebLogParser.parser(line);

if (!webLogBean.isValid())

return;

k.set(webLogBean.toString());

context.write(k, v);

}

}

public static void main(String[] args) throws Exception {

Configuration conf = new Configuration();

Job job = Job.getInstance(conf);

job.setJarByClass(WeblogPreProcess.class);

job.setMapperClass(WeblogPreProcessMapper.class);

job.setOutputKeyClass(Text.class);

job.setOutputValueClass(NullWritable.class);

FileInputFormat.setInputPaths(job, new Path(args[0]));

FileOutputFormat.setOutputPath(job, new Path(args[1]));

job.waitForCompletion(true);

}

｝

其实也可以采用数据hive处理的方法，将以上的数据加载到数据可中。

如有问题欢迎提问。