Hibernate 再接触 基础配置 搭建Log4j环境 Junit日志环境等

时间：2021-07-05 09:32:29
    <!-- Drop and re-create the database schema on startup -->

        <property name="hbm2ddl.auto">update</property>

有update create validate create-drop四种属性

update 表示如果映射的类中有加的类 会自动改表

create是指如果数据库没有创表可以自动帮创

validate会在执行操作前可以先验证有没有表

create-drop是指关闭sessionfactory之后自动drop掉表

一般实际开发先建表

搭建Log4j日志环境

加入jar包

Hibernate 再接触 基础配置 搭建Log4j环境 Junit日志环境等

引入配置文件

Log4j.properties

### direct log messages to stdout ###

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.Target=System.out

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c:%L - %m%n

### direct messages to file hibernate.log ###

#log4j.appender.file=org.apache.log4j.FileAppender

#log4j.appender.file.File=hibernate.log

#log4j.appender.file.layout=org.apache.log4j.PatternLayout

#log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{}:%L - %m%n

### set log levels - for more verbose logging change 'info' to 'debug' ###

log4j.rootLogger=warn, stdout

#log4j.logger.org.hibernate=info

#log4j.logger.org.hibernate=debug

### log HQL query parser activity

#log4j.logger.org.hibernate.hql.ast.AST=debug

### log just the SQL

#log4j.logger.org.hibernate.SQL=debug

### log JDBC bind parameters ###

#log4j.logger.org.hibernate.type=info

#log4j.logger.org.hibernate.type=debug

### log schema export/update ###

log4j.logger.org.hibernate.tool.hbm2ddl=debug

### log HQL parse trees

#log4j.logger.org.hibernate.hql=debug

### log cache activity ###

#log4j.logger.org.hibernate.cache=debug

### log transaction activity

#log4j.logger.org.hibernate.transaction=debug

### log JDBC resource acquisition

#log4j.logger.org.hibernate.jdbc=debug

### enable the following line if you want to track down connection ###

### leakages when using DriverManagerConnectionProvider ###

#log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace

可以注释掉不想要的内容

搭建Junit环境

学习maven 加入Junit类库

Hibernate 再接触 基础配置 搭建Log4j环境 Junit日志环境等

新建一个test

Hibernate 再接触 基础配置 搭建Log4j环境 Junit日志环境等

新建Junite test case

加入注解@Test

package com.easy;

import static org.junit.Assert.*;

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.cfg.AnnotationConfiguration;

import org.hibernate.cfg.Configuration;

import org.junit.AfterClass;

import org.junit.BeforeClass;

import org.junit.Test;

public class Teachertest {

    public static  SessionFactory sf = null;

    @BeforeClass

    public static void beforeclass(){

            sf = new AnnotationConfiguration().configure().buildSessionFactory();

    }

    @Test

    public void test() {

        student  su = new student();

          su.setId();

          su.setName("haha功");

          su.setAge();

          Session session = sf.openSession();

          session.beginTransaction();

          session.save(su);

          session.getTransaction().commit();

          session.close();

    }

   @AfterClass

   public static void afterclass(){

       sf.close();

   }

}

按照junite测试

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