用idea，利用web+ssm框架编译出学生信息管理系统，包括具体代码

抱歉，由于篇幅限制，无法在此处提供完整的学生信息管理系统的代码。不过，以下是用Web+SSM框架编写学生信息管理系统的基本步骤：

1. 创建Maven项目并添加相关依赖。

2. 配置Spring MVC框架，包括配置DispatcherServlet、ViewResolver、HandlerMapping等。

3. 配置MyBatis框架，包括配置SqlSessionFactory、SqlSessionTemplate等。

4. 创建数据库表以存储学生信息，例如学生姓名、学号、班级等。

5. 创建实体类Student，包含与数据库表对应的属性。

6. 创建Mapper接口和Mapper.xml文件，用于实现与数据库的交互。

7. 创建Service层和Controller层，分别实现业务逻辑和控制层操作。

8. 创建前端页面，包括展示学生信息、添加学生信息、修改学生信息、删除学生信息等功能。

9. 部署项目并运行，测试功能是否正常。

以下是示例代码：

1. Maven依赖

<dependencies>
   <!--Spring MVC-->
   <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.2.6.RELEASE</version>
   </dependency>
   <!--MyBatis-->
   <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.5</version>
   </dependency>
   <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.5</version>
   </dependency>
   <!--MySQL-->
   <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.22</version>
   </dependency>
   <!--JSP-->
   <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
   </dependency>
   <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
   </dependency>
</dependencies>

2. Spring MVC配置

<!--配置DispatcherServlet-->
<servlet>
   <servlet-name>dispatcher</servlet-name>
   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
   <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring/springmvc-config.xml</param-value>
   </init-param>
</servlet>
<servlet-mapping>
   <servlet-name>dispatcher</servlet-name>
   <url-pattern>/</url-pattern>
</servlet-mapping>

<!--配置ViewResolver-->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
   <property name="prefix" value="/WEB-INF/views/"/>
   <property name="suffix" value=".jsp"/>
</bean>

<!--配置HandlerMapping-->
<mvc:annotation-driven/>
<context:component-scan base-package="com.example.controller"/>

3. MyBatis配置

<!--配置SqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
   <property name="dataSource" ref="dataSource"/>
   <property name="mapperLocations" value="classpath:mapper/*Mapper.xml"/>
</bean>

<!--配置SqlSessionTemplate-->
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
   <constructor-arg index="0" ref="sqlSessionFactory"/>
</bean>

4. 数据库表

CREATE TABLE student (
   id INT PRIMARY KEY AUTO_INCREMENT,
   name VARCHAR(20),
   number VARCHAR(10),
   class_name VARCHAR(20)
);

5. 实体类Student

public class Student {
   private int id;
   private String name;
   private String number;
   private String className;
   //getter和setter方法
}

6. Mapper接口和Mapper.xml文件

public interface StudentMapper {
   List<Student> getAllStudents();
   Student getStudentById(int id);
   void addStudent(Student student);
   void updateStudent(Student student);
   void deleteStudent(int id);
}

<mapper namespace="com.example.mapper.StudentMapper">
   <select id="getAllStudents" resultType="com.example.entity.Student">
      SELECT * FROM student
   </select>
   <select id="getStudentById" parameterType="int" resultType="com.example.entity.Student">
      SELECT * FROM student WHERE id=#{id}
   </select>
   <insert id="addStudent" parameterType="com.example.entity.Student">
      INSERT INTO student (name, number, class_name)
      VALUES (#{name}, #{number}, #{className})
   </insert>
   <update id="updateStudent" parameterType="com.example.entity.Student">
      UPDATE student SET name=#{name}, number=#{number}, class_name=#{className} WHERE id=#{id}
   </update>
   <delete id="deleteStudent" parameterType="int">
      DELETE FROM student WHERE id=#{id}
   </delete>
</mapper>

7. Service层和Controller层

@Service
public class StudentService {
   @Autowired
   private StudentMapper studentMapper;

   public List<Student> getAllStudents() {
      return studentMapper.getAllStudents();
   }

   public Student getStudentById(int id) {
      return studentMapper.getStudentById(id);
   }

   public void addStudent(Student student) {
      studentMapper.addStudent(student);
   }

   public void updateStudent(Student student) {
      studentMapper.updateStudent(student);
   }

   public void deleteStudent(int id) {
      studentMapper.deleteStudent(id);
   }
}

@Controller
@RequestMapping("/student")
public class StudentController {
   @Autowired
   private StudentService studentService;

   @RequestMapping("/list")
   public String list(Model model) {
      List<Student> students = studentService.getAllStudents();
      model.addAttribute("students", students);
      return "studentList";
   }

   @RequestMapping("/toAdd")
   public String toAdd() {
      return "addStudent";
   }

   @RequestMapping("/add")
   public String add(Student student) {
      studentService.addStudent(student);
      return "redirect:/student/list";
   }

   @RequestMapping("/toUpdate")
   public String toUpdate(int id, Model model) {
      Student student = studentService.getStudentById(id);
      model.addAttribute("student", student);
      return "updateStudent";
   }

   @RequestMapping("/update")
   public String update(Student student) {
      studentService.updateStudent(student);
      return "redirect:/student/list";
   }

   @RequestMapping("/delete")
   public String delete(int id) {
      studentService.deleteStudent(id);
      return "redirect:/student/list";
   }
}

8. 前端页面

studentList.jsp

<table>
   <tr>
      <th>ID</th>
      <th>姓名</th>
      <th>学号</th>
      <th>班级</th>
      <th>操作</th>
   </tr>
   <c:forEach items="${students}" var="student">
      <tr>
         <td>${student.id}</td>
         <td>${student.name}</td>
         <td>${student.number}</td>
         <td>${student.className}</td>
         <td>
            <a href="${pageContext.request.contextPath}/student/toUpdate?id=${student.id}">修改</a>
            <a href="${pageContext.request.contextPath}/student/delete?id=${student.id}">删除</a>
         </td>
      </tr>
   </c:forEach>
</table>
<a href="${pageContext.request.contextPath}/student/toAdd">添加学生</a>

addStudent.jsp

<form action="${pageContext.request.contextPath}/student/add" method="post">
   <label>姓名:</label><input type="text" name="name"><br>
   <label>学号:</label><input type="text" name="number"><br>
   <label>班级:</label><input type="text" name="className"><br>
   <input type="submit" value="添加">
</form>

updateStudent.jsp

<form action="${pageContext.request.contextPath}/student/update" method="post">
   <input type="hidden" name="id" value="${student.id}">
   <label>姓名:</label><input type="text" name="name" value="${student.name}"><br>
   <label>学号:</label><input type="text" name="number" value="${student.number}"><br>
   <label>班级:</label><input type="text" name="className" value="${student.className}"><br>
   <input type="submit" value="修改">
</form>

9. 运行项目

在浏览器中输入http://localhost:8080/student/list，即可进入学生信息列表页。