如何从日志中获取值到 java 列表？ <hibernate>

Question

是否可以从控制台获取该值： 并将它们保存到 java list/map?

我是这样打印日志的：

logging.level.org.hibernate.SQL=DEBUG
logging.level.org.hibernate.type=TRACE
logging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE

我的查询：

@Transactional
public String executeSQL(String[] split){
    SessionFactory hibernateFactory = someService.getHibernateFactory();
    String message = null;
    int rows = 0;
    EntityManager entityManager = hibernateFactory.createEntityManager();
    EntityTransaction utx = entityManager.getTransaction();
    for (int i = 0; i < split.length; i++) {
        String query = split[i];
        try {
            utx.begin();
            Query query1 = entityManager.createNativeQuery(query);
            rows = query1.executeUpdate();
            utx.commit();
            try{
                resultList = query1.getResultList();
                resultList.stream().map(Arrays::toString).forEach(System.out::println);
            }
            catch(Exception e){
            }
            message = "Success \n{ ["+rows+"] <--- affected rows}";
        }catch (PersistenceException e){
            utx.rollback();
            message = (((SQLGrammarException)e.getCause()).getSQLException()).getMessage();
        }
    }
    entityManager.close();
    return message;
}

我知道如何将值保存到列表中，如您所见，但我无法提取列...因为没有关于列名称的信息。在日志中，列有名称，列也有类型，这些信息对我很有用。

Answer 1

作为一个选项，它的实现方式是 Logback Appender 一旦你登录到 appender，你就可以实现过滤和任何你需要的东西。

1.Add 对 logback-classic 的依赖

<dependency>
   <groupId>ch.qos.logback</groupId>
   <artifactId>logback-classic</artifactId>
   <version>1.2.3</version>
</dependency>

2.Add logback.xml 资源

<configuration>
    <appender name="list" class="com.test.ListAppender"/>
    <root level="info">
        <appender-ref ref="list"/>
    </root>
</configuration>

3.Implement 附加程序 class

package com.test;

import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.AppenderBase;

import java.util.LinkedList;
import java.util.List;

public class ListAppender extends AppenderBase<ILoggingEvent> {

    private static List<ILoggingEvent> eventList = new LinkedList<>();

    @Override
    protected void append(ILoggingEvent event) {
        eventList.add(event);
    }

    public List<ILoggingEvent> getEventList() {
        return eventList;
    }
}

4.Test 你的代码

package com.test;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class Main {
    private static final Logger logger = LoggerFactory.getLogger(Main.class);

    static ListAppender listAppender = new ListAppender();

    public static void main(String[] args) {
        logger.info("Hello World");
        listAppender.getEventList().forEach(entry -> System.out.println("print log from list:" + entry));
        System.out.println();
    }
}

如何从日志中获取值到 java 列表？ <hibernate>

How to get values from logs into java list? <hibernate>

java

hibernate

hibernate-mapping