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  • MyBatis入门搭建

    环境搭建:

    //mybatis-config.xml

    <?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/test?serverTimezone=GMT%2B8"/> <property name="username" value="root"/> <property name="password" value="123456"/> </dataSource> </environment> </environments> <mappers> <mapper resource="comWebTest01mapperPetMapper.xml"/> </mappers> </configuration>
    //PetMapper.xml

    <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="test1"> <select id="getByName" parameterType="java.lang.String" resultType="com.WebTest01.domain.Pet"> select * from pet where name = #{name}; </select> </mapper>
    //Test01.java

    package
    com.WebTest01.test; import org.apache.ibatis.io.Resources; import org.apache.ibatis.session.SqlSession; import org.apache.ibatis.session.SqlSessionFactory; import org.apache.ibatis.session.SqlSessionFactoryBuilder; import java.io.IOException; import java.io.InputStream; public class Test01 { public static void main(String[] args) { String resource = "mybatis-config.xml"; InputStream inputStream = null; try { inputStream = Resources.getResourceAsStream(resource); } catch (IOException e) { e.printStackTrace(); } SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream); SqlSession sqlSession = sqlSessionFactory.openSession(); Object ming = sqlSession.selectOne("test1.getByName", "Ming"); System.out.println(ming); sqlSession.close(); } }

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  • 原文地址:https://www.cnblogs.com/faded828x/p/13290716.html
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