新手可能会遇到的错误[mybatis]

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问题一: Could not find resource mybatis-config.xml

 

 

 当出现这个错误很明显是找不到 mybatis-config.xml文件，出现这种错误，很大一部原因是你可能没有把mybatis-config.xml文件放到resources文件目录下 

 

 

 

 问题二：

 

 

 出现上面这个问题；

应该是mybatis-config.xml文件中的驱动没有配置好，

容易出错的点一个是在driver和url中

容易出错的问题是mysql配置版本在8以上，需要把driver配置成com.mysql.cj.jdbc.Driver

5.0以上8.0一下则需要把driver配置成com.mysql.jdbc.Driver

`<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.cj.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&amp;characterEncoding=utf8&amp;useUnicode=true&amp;useSSL=false"/>
                <property name="username" value="root"/>
                <property name="password" value="123456"/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        <mapper resource="com/ldzy/dao/UserMapper.xml"/>
    </mappers>

</configuration>`

url容易出错是url配置要完整

`name="url" value="jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&characterEncoding=utf8&useUnicode=true&useSSL=false"
`

 

 

但也有可能是没有在pom文件中加上这段代码

`<build>

    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>true</filtering>
        </resource>
        <resource>
            <directory>src/main/java</directory>
            <includes>
                <include>**/*.properties</include>
                <include>**/*.xml</include>
            </includes>
            <filtering>true</filtering>
        </resource>
    </resources>

</build>`

就会导致无法把UserMapper.xml文件加载到targetx下

 

 

标签：xml,错误,url,amp,mysql,mybatis,新手,config
来源： https://www.cnblogs.com/cnmd11/p/16106889.html