您好,登录后才能下订单哦!
本文小编为大家详细介绍“怎么在springboot中集成mybatis xml方式”,内容详细,步骤清晰,细节处理妥当,希望这篇“怎么在springboot中集成mybatis xml方式”文章能帮助大家解决疑惑,下面跟着小编的思路慢慢深入,一起来学习新知识吧。
springboot集成mybatis
1,添加pom引用
<dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.1.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency>
2 application.properties
mybatis.config-locations=classpath:mybatis/mybatis-config.xml mybatis.mapper-locations=classpath:mybatis/mapper/*.xml mybatis.type-aliases-package=com.kerry.model spring.datasource.driverClassName = com.mysql.jdbc.Driver spring.datasource.url = jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8 spring.datasource.username = root spring.datasource.password = 123456
3 在resource目录下创建mybatis目录并创建mybatis-config.xml文件
<?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> <settings> <setting name="callSettersOnNulls" value="true"/> <setting name="cacheEnabled" value="true"/> <setting name="lazyLoadingEnabled" value="true"/> <setting name="aggressiveLazyLoading" value="true"/> <setting name="multipleResultSetsEnabled" value="true"/> <setting name="useColumnLabel" value="true"/> <setting name="useGeneratedKeys" value="false"/> <setting name="autoMappingBehavior" value="PARTIAL"/> <setting name="defaultExecutorType" value="SIMPLE"/> <setting name="mapUnderscoreToCamelCase" value="true"/> <setting name="localCacheScope" value="SESSION"/> <setting name="jdbcTypeForNull" value="NULL"/> </settings> <typeAliases> <typeAlias alias="Integer" type="java.lang.Integer" /> <typeAlias alias="Long" type="java.lang.Long" /> <typeAlias alias="HashMap" type="java.util.HashMap" /> <typeAlias alias="LinkedHashMap" type="java.util.LinkedHashMap" /> <typeAlias alias="ArrayList" type="java.util.ArrayList" /> <typeAlias alias="LinkedList" type="java.util.LinkedList" /> </typeAliases> </configuration>
mybatis目录下创建mapper目录存放mapper类接口文件
package com.kerry.mapper; import java.util.List; import com.kerry.model.User; public interface UserMapper { List<User> getAll(); User getOne(Integer id); void insert(User user); void update(User user); void delete(Integer id); }
model类文件
package com.kerry.mapper; import java.util.List; import com.kerry.model.User; public interface UserMapper { List<User> getAll(); User getOne(Integer id); void insert(User user); void update(User user); void delete(Integer id); }
userMapper.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="com.kerry.mapper.UserMapper" > <resultMap id="BaseResultMap" type="com.kerry.model.User" > <id column="id" property="id" jdbcType="INTEGER" /> <result column="name" property="name" jdbcType="VARCHAR" /> <result column="age" property="age" jdbcType="VARCHAR" /> <result column="address" property="address" jdbcType="VARCHAR"/> </resultMap> <sql id="Base_Column_List" > id, name, age, address </sql> <select id="getAll" resultMap="BaseResultMap" > SELECT <include refid="Base_Column_List" /> FROM user </select> <select id="getOne" parameterType="java.lang.Integer" resultMap="BaseResultMap" > SELECT <include refid="Base_Column_List" /> FROM user WHERE id = #{id} </select> <insert id="insert" parameterType="com.kerry.model.User" > INSERT INTO user (id,name,age,address) VALUES (#{id},#{name}, #{age}, #{address}) </insert> <update id="update" parameterType="com.kerry.model.User" > UPDATE user SET <if test="name != null">name = #{name},</if> <if test="age != null">age = #{age},</if> address = #{address} WHERE id = #{id} </update> <delete id="delete" parameterType="java.lang.Integer" > DELETE FROM user WHERE id =#{id} </delete> </mapper>
controller:
package com.kerry.web; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import com.kerry.model.User; import com.kerry.mapper.UserMapper; @RestController public class UserController { @Autowired private UserMapper userMapper; @RequestMapping("/getUsers") public List<User> getUsers() { List<User> users=userMapper.getAll(); return users; } @RequestMapping("/getUser") public User getUser(Integer id) { User user=userMapper.getOne(id); return user; } @RequestMapping("/add") public void save(User user) { userMapper.insert(user); } @RequestMapping(value="update") public void update(User user) { userMapper.update(user); } @RequestMapping(value="/delete/{id}") public void delete(@PathVariable("id") Integer id) { userMapper.delete(id); } }
最后在启动类上加上 扫描maper interface注解
@SpringBootApplication @MapperScan("com.kerry.mapper") public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } }
或者在每个XXMapper类上加上@mapper注解也行 二选一即可
比如
package com.kerry.mapper; import java.util.List; import org.apache.ibatis.annotations.Mapper; import com.kerry.model.User; @Mapper public interface UserMapper { List<User> getAll(); User getOne(Integer id); void insert(User user); void update(User user); void delete(Integer id); }
个人建议使用直接在启动类上application上@MapperScan方便,一次搞定,不必每写一个mapper类都加上@mapper注解
附上项目结构目录 选中的类以及文件
读到这里,这篇“怎么在springboot中集成mybatis xml方式”文章已经介绍完毕,想要掌握这篇文章的知识点还需要大家自己动手实践使用过才能领会,如果想了解更多相关内容的文章,欢迎关注亿速云行业资讯频道。
免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。