此文已由作者赵计刚授权网易云社区发布。

欢迎访问网易云社区，了解更多网易技术产品运营经验。

2.2.2、ssmm0-data

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/maven-v4_0_0.xsd"><modelVersion>4.0.0</modelVersion><!-- 指定父模块 --><parent><groupId>com.xxx</groupId><artifactId>ssmm0</artifactId><version>1.0-SNAPSHOT</version></parent><groupId>com.xxx.ssmm0</groupId><artifactId>ssmm0-data</artifactId><name>ssmm0-data</name><packaging>jar</packaging><!-- 只是作为其他模块使用的工具 --><!-- 引入实际依赖 --><dependencies><!-- mysql --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><!-- 数据源 --><dependency><groupId>org.apache.tomcat</groupId><artifactId>tomcat-jdbc</artifactId></dependency><!-- mybatis --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId></dependency></dependencies>
</project>

注意：<package>为jar

com.xxx.model.userManagement.Admin

package com.xxx.model.userManagement;/*** 管理员 */
public class Admin {private int id;private String username;private String password;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}
}

com.xxx.mapper.userManagement.AdminMapper

package com.xxx.mapper.userManagement;import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;import com.xxx.model.userManagement.Admin;/*** 管理员Mapper*/
public interface AdminMapper {@Insert("INSERT INTO userinfo(username, password) VALUES(#{username},#{password})")public int insertAdmin(Admin admin);@Select("SELECT * FROM userinfo WHERE username = #{username} AND password = #{password}")@Results(value = { @Result(id = true, column = "id", property = "id"),@Result(column = "username", property = "username"),@Result(column = "password", property = "password") })public Admin selectAdmin(@Param("username") String username,@Param("password") String password);
}

com.xxx.dao.userManagement.AdminDao

package com.xxx.dao.userManagement;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;import com.xxx.mapper.userManagement.AdminMapper;
import com.xxx.model.userManagement.Admin;/*** 管理员DAO*/
@Repository
public class AdminDao {@Autowiredprivate AdminMapper adminMapper;public boolean register(Admin admin){return adminMapper.insertAdmin(admin)==1?true:false;}public Admin login(String username ,String password){return adminMapper.selectAdmin(username, password);}
}

com.xxx.service.userManagement.AdminService

package com.xxx.service.userManagement;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import com.xxx.dao.userManagement.AdminDao;
import com.xxx.model.userManagement.Admin;/*** 管理员service*/
@Service
public class AdminService {@Autowiredprivate AdminDao adminDao;public boolean register(Admin admin){return adminDao.register(admin);}public Admin login(String username, String password) {return adminDao.login(username, password);}
}

代码很简单，与之前的基本一样，只是名字换了而已。

值得注意的是包名：com.xxx.mapper.userManagement而非com.xxx.userManagement.mapper。

免费领取验证码、内容安全、短信发送、直播点播体验包及云服务器等套餐

更多网易技术、产品、运营经验分享请点击。

相关文章：
【推荐】 让机器读懂用户--大数据中的用户画像