运行报错，请老师看看

csm032 2020-05-22

源自：项目：商品信息管理 3-2 分类管理表现层

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3回答

好帮手慕阿慧 2020-05-22 16:48:27

同学你好，建议同学把mybatis-3.5.4.jar包放到tomcat的lib包下面试试。

如果我的回答解决了你的疑惑，请采纳！祝学习愉快！

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提问者 csm032 2020-05-22 15:18:49

问题仍然存在，请老师看看怎么解决？

-------pom.xml-------------

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
 
    <groupId>com.imooc</groupId>
    <artifactId>icake</artifactId>
    <version>1.0-SNAPSHOT</version>
 
    <repositories>
        <repository>
            <id>aliyun</id>
            <name>aliyun</name>
            <url>https://maven.aliyun.com/repository/public</url>
        </repository>
    </repositories>
 
    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.20</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.ibatis</groupId>
            <artifactId>ibatis-core</artifactId>
            <version>3.0</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
        </dependency>
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
    </dependencies>
 
 
</project>

------------DaoFactory------------

package com.imooc.icake.global;
 
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
 
import java.io.IOException;
 
public class DaoFactory {
    private static DaoFactory daoFactory;
    private SqlSessionFactory sessionFactory;
    private DaoFactory(){
        SqlSessionFactoryBuilder sqlSessionFactoryBuilder=new SqlSessionFactoryBuilder();
        try {
            sessionFactory=sqlSessionFactoryBuilder.build(Resources.getResourceAsReader("/mybatis.xml"));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 
    public static DaoFactory getInstance(){
        if(daoFactory==null){
            daoFactory=new DaoFactory();
        }
        return daoFactory;
    }
 
    public <T> T getDao(Class<T> tClass){
        return sessionFactory.openSession(true).getMapper(tClass);
    }
 
}

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好帮手慕阿慧 #1

同学你好，建议同学将pom.xml中不需要的依赖ibatis-core去掉。mysql等版本与课程中的版本一样，再重启试试，看看控制台中有没有报错信息。祝学习愉快~

2020-05-22 16:19:09
提问者 csm032 回复好帮手慕阿慧 #2

是因为有报错信息才特别加上的ibatis-core，去掉之后仍然报错

2020-05-22 16:20:19