java - 如何为 Log4j 创建文件配置

Question

当他添加到数据库中时我想要记录对象:

Queue<Proposal> proposals = ...;

log.info(proposals.peek());

channelToDatabase.ingection(proposals.poll());

我的提案对象:

public class Proposal {
    /**
     * Header of Proposal.
     */
    private String header;
    /**
     * Author of Proposal.
     */
    private String author;
    /**
     * Create date of Proposal.
     */
    private Timestamp create;
    /**
     * Link to Proposal page.
     */
    private String ulrPropose;
    /**
     * Account recruiter.
     */
    private String urlRecruiter;

    public String getHeader() {
        return header;
    }

    public void setHeader(String header) {
        this.header = header;
    }

    public String getNickname() {
        return author;
    }

    public void setNickname(String author) {
        this.author = author;
    }

    public Timestamp getCreateTime() {
        return create;
    }

    public void setCreate(Timestamp create) {
        this.create = create;
    }

    public String getUlrPropose() {
        return ulrPropose;
    }

    public void setUlrPropose(String ulrPropose) {
        this.ulrPropose = ulrPropose;
    }

    public String getUrlRecruiter() {
        return urlRecruiter;
    }

    public void setUrlRecruiter(String urlRecruiter) {
        this.urlRecruiter = urlRecruiter;
    }

    @Override
    public String toString() {
        return "Proposal{" +
                "header='" + header + '\'' +
                ", author='" + author + '\'' +
                ", create=" + create +
                ", ulrPropose='" + ulrPropose + '\'' +
                ", urlRecruiter='" + urlRecruiter + '\'' +
                '}';
    }
}

我想在我的信息日志中获取如下内容:

header, ulrPropose, time_addition, nickname, author, urlRecruiter

类似于从我的数据库中选择但在日志中。

为此我需要配置文件log4j.properties。请帮助我。

Answer 1

其实和log4j关系不大。

您应该修改的是 toString() 函数 Proposal ，将其更改为您想要的格式。像这样:

return header + "," + author ...

而且你可以在网上随意选择一个log4j.properties，就可以了。只需记住仅使用“%m%n”更改 ConversionPattern，这样您就不会获得不必要的信息。