Spring MVC入门Demo

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海天一树2022 2022-08-09 20:44:16 博主文章分类：Java ©著作权

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1 用第二种方法创建一个名为springmvcdemo的Maven工程。

2 文件目录结构如下图所示

Spring MVC入门Demo_xml

3 pom.xml中的完整内容为

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>springmvcdemo</groupId>
  <artifactId>springmvcdemo</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <name>springmvcdemo</name>
  <description />
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>
  <dependencies>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>3.2.9.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>3.2.9.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>javax</groupId>
      <artifactId>javaee-api</artifactId>
      <version>7.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>org.glassfish.web</groupId>
      <artifactId>javax.servlet.jsp.jstl</artifactId>
      <version>1.2.2</version>
    </dependency> 
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>2.3.2</version>
        <configuration>
          <source>1.7</source>
          <target>1.7</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.2</version>
        <configuration>
          <version>3.1</version>
          <failOnMissingWebXml>false</failOnMissingWebXml>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

4 web.xml中的完整内容为

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
  id="WebApp_ID" version="3.1">
  <display-name>springmvcdemo</display-name>
  <servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>/WEB-INF/applicationContext.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

5 applicationContext.xml中的完整内容为：

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd">
 
    <context:component-scan base-package="com.demo" />
 
    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
     
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/" />
        <property name="suffix" value=".jsp" />
    </bean>
 
</beans>

6 Student.java中的完整代码为

package com.demo.model;

import java.io.Serializable;

public class Student implements Serializable {
    private static final long serialVersionUID = 1L;
     
    private Integer id;
    private String name;
 
    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Student [id=" + id + ", name=" + name + "]";
    }
}

7 StudentDao.java中的完整代码为

package com.demo.dao;
 
import java.util.List;
import com.demo.model.Student;
 
public interface StudentDao {
    public List<Student> getAllStudents();
}

8 StudentDaoImpl.java中的完整代码为

package com.demo.dao;

import java.util.ArrayList;
import java.util.List;

import org.springframework.stereotype.Repository;

import com.demo.model.Student;

@Repository
public class StudentDaoImpl implements StudentDao {
    public List<Student> getAllStudents() {
        List<Student> students = new ArrayList<Student>();
         
        Student stu1 = new Student();
        stu1.setId(1);
        stu1.setName("Zhang San");
        students.add(stu1);
         
        Student stu2 = new Student();
        stu2.setId(2);
        stu2.setName("Li Si");
        students.add(stu2);
         
        return students;
    }
}

9 StudentManager.java中的完整代码为：

package com.demo.service;
 
import java.util.List;
 
import com.demo.model.Student;
 
public interface StudentManager {
    public List<Student> getAllStudents();
}

10 StudentManagerImpl.java

中的完整代码为：

package com.demo.service;
 
import java.util.List;
 
import org.springframework.stereotype.Service;
import org.springframework.beans.factory.annotation.Autowired;
 
import com.demo.dao.StudentDao;
import com.demo.model.Student;
import com.demo.service.StudentManager;
 
@Service
public class StudentManagerImplimplements StudentManager{
    @Autowired
    StudentDao dao;
    
    publicList<Student> getAllStudents() {
        return dao.getAllStudents();
    }
}

11 StudentController.java中的完整代码为：

package com.demo.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.ui.Model;

import com.demo.service.StudentManager;

@Controller
@RequestMapping("/student-module")

public class StudentController {
    @Autowired
    StudentManager manager;
 
    @RequestMapping(value = "/getStudentInfo", method = RequestMethod.GET)
    public String getStudentInfo(Model model) {
        model.addAttribute("students", manager.getAllStudents());
        return "showStudentInfo";
    }
}

12 showStudentInfo.jsp中的完整代码为：

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<html>
<head>
    <title>Spring MVC Demo</title>
</head>
 
<body>
    <h2>All Students</h2>
 
    <table border="1">
        <tr>
            <th>Student Id</th>
            <th>Student Name</th>
        </tr>
        <c:forEach items="${students}" var="student">
            <tr>
                <td>${student.id}</td>
                <td>${student.name}</td>
            </tr>
        </c:forEach>
    </table>
 
</body>
</html>