javaee基于ssm框架的项目
时间: 2023-10-11 21:13:33 浏览: 48
JavaEE基于SSM框架的项目是一种Web应用程序,使用Spring、SpringMVC和MyBatis框架进行开发。以下是一个简单的JavaEE基于SSM框架的项目示例:
1. 首先,我们需要创建一个Maven项目,并在pom.xml文件中添加以下依赖项:
```xml
<!-- Spring Framework -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.3.10</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.10</version>
</dependency>
<!-- MyBatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.7</version>
</dependency>
<!-- Servlet API -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
```
2. 创建一个Spring配置文件,例如applicationContext.xml,用于配置Spring的核心组件:
```xml
<context:component-scan base-package="com.example.project" />
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/project" />
<property name="username" value="root" />
<property name="password" value="password" />
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath*:mapper/*.xml" />
</bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven />
```
3. 创建一个SpringMVC配置文件,例如springmvc.xml,用于配置SpringMVC的核心组件:
```xml
<context:component-scan base-package="com.example.project.controller" />
<mvc:annotation-driven />
<mvc:view-controller path="/" view-name="index" />
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
```
4. 创建一个MyBatis配置文件,例如mybatis-config.xml,用于配置MyBatis的核心组件:
```xml
<configuration>
<settings>
<setting name="mapUnderscoreToCamelCase" value="true" />
</settings>
</configuration>
```
5. 创建一个Mapper接口,例如UserMapper.java,用于定义访问数据库的方法:
```java
public interface UserMapper {
User selectUserById(int id);
void insertUser(User user);
void updateUser(User user);
void deleteUser(int id);
}
```
6. 创建一个Mapper XML文件,例如UserMapper.xml,用于定义SQL语句:
```xml
<mapper namespace="com.example.project.mapper.UserMapper">
<select id="selectUserById" parameterType="int" resultType="com.example.project.model.User">
SELECT * FROM user WHERE id = #{id}
</select>
<insert id="insertUser" parameterType="com.example.project.model.User">
INSERT INTO user (name, age) VALUES (#{name}, #{age})
</insert>
<update id="updateUser" parameterType="com.example.project.model.User">
UPDATE user SET name = #{name}, age = #{age} WHERE id = #{id}
</update>
<delete id="deleteUser" parameterType="int">
DELETE FROM user WHERE id = #{id}
</delete>
</mapper>
```
7. 创建一个Controller类,例如UserController.java,用于处理HTTP请求:
```java
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserMapper userMapper;
@GetMapping("/{id}")
public String getUser(@PathVariable int id, Model model) {
User user = userMapper.selectUserById(id);
model.addAttribute("user", user);
return "user";
}
@PostMapping("/")
public String addUser(@ModelAttribute User user) {
userMapper.insertUser(user);
return "redirect:/user/" + user.getId();
}
@PutMapping("/{id}")
public String updateUser(@PathVariable int id, @ModelAttribute User user) {
user.setId(id);
userMapper.updateUser(user);
return "redirect:/user/" + id;
}
@DeleteMapping("/{id}")
public String deleteUser(@PathVariable int id) {
userMapper.deleteUser(id);
return "redirect:/";
}
}
```
8. 创建一个JSP视图,例如user.jsp,用于显示用户信息:
```html
<h1>User Info</h1>
<p>Name: ${user.name}</p>
<p>Age: ${user.age}</p>
```
这只是一个简单的JavaEE基于SSM框架的项目示例,实际应用程序可能会更复杂,需要更多的组件和配置。