1.1 本案例基于maven构建 SSM（Spring+SpringMVC+Mybatis）工程，通过maven坐标进行依赖管理。最终实现根
据 id 查询商品信息的功能。
1.2 构建maven工程
1.数据库环境搭建
①创建数据库ssmtest
②创建商品表item
CREATE TABLE item (
id int(11) NOT NULL auto_increment,
name varchar(255) default NULL,
price float default NULL,
createtime datetime default NULL,
detail varchar(255) default NULL,
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
2.maven项目构建
①创建maven web项目
②配置pom.xml文件
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<spring.version>5.0.5.RELEASE</spring.version>
<springmvc.version>5.0.5.RELEASE</springmvc.version>
<mybatis.version>3.4.5</mybatis.version>
org.mybatis mybatis ${mybatis.version} org.springframework spring-webmvc ${springmvc.version} org.springframework spring-context ${spring.version} org.springframework spring-core ${spring.version} org.springframework spring-aop ${spring.version} org.springframework spring-web ${spring.version} org.springframework spring-expression ${spring.version} org.springframework spring-beans ${spring.version} org.springframework spring-aspects ${spring.version} org.springframework spring-context-support ${spring.version} org.springframework spring-test ${spring.version} org.springframework spring-jdbc ${spring.version} org.springframework spring-tx ${spring.version} org.mybatis mybatis org.mybatis mybatis-spring 1.3.1 mysql mysql-connector-java 5.1.32 com.alibaba druid 1.0.9 org.springframework spring-webmvc org.springframework spring-context org.springframework spring-core org.springframework spring-aop org.springframework spring-web org.springframework spring-expression org.springframework spring-beans org.springframework spring-aspects org.springframework spring-context-support org.springframework spring-test org.springframework spring-jdbc org.springframework spring-tx junit junit 4.12 javax.servlet servlet-api 2.5 provided javax.servlet jsp-api 2.0 provided javax.servlet jstl 1.2 org.apache.maven.plugins maven-compiler-plugin 3.1 1.8 1.8 UTF-8 ③实现spring+mybatis整合 创建POJO类 public class Item { private Integer id; private String name; private Float price; private Date createtime; private String detail; //省略setter、getter }