SpringMVC实现学生增删查改

淡淡的烟草味﹌ 2022-03-12 06:08 234阅读 0赞

github源码:[https://github.com/fluoritess/SpringMvc-CRUD1][https_github.com_fluoritess_SpringMvc-CRUD1]

### 1.pom依赖 ###

<dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-web</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-test</artifactId>
                <version>5.0.8.RELEASE</version>
                <scope>test</scope>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aop</artifactId>
                <version>5.0.8.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
                <version>1.1.1</version>
            </dependency>
            
            <dependency>
                <groupId>javax.servlet.jsp.jstl</groupId>
                <artifactId>jstl</artifactId>
                <version>1.2</version>
            </dependency>
            
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
                <version>1.2</version>
            </dependency>
            
            <dependency>
                <groupId>taglibs</groupId>
                <artifactId>standard</artifactId>
                <version>1.1.2</version>
            </dependency>

### 2.web.xml ###

<!DOCTYPE web-app PUBLIC
            "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
            "http://java.sun.com/dtd/web-app_2_3.dtd" >
    
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns="http://java.sun.com/xml/ns/javaee"
             xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
             version="3.0">
        <display-name>Archetype Created Web Application</display-name>
        
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                classpath*:applicationContext.xml
            </param-value>
        </context-param>
    
        
        <servlet>
            <servlet-name>springMVC</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath*:applicationContext.xml</param-value>
            </init-param>
            <load-on-startup>1</load-on-startup>
            <async-supported>true</async-supported>
        </servlet>
        <servlet-mapping>
            <servlet-name>springMVC</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    
    </web-app>

### 3.applicationContext.xml ###

<?xml version="1.0" encoding="UTF-8"?>
    <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"
           xmlns:beans="http://www.springframework.org/schema/beans"
           xmlns:mvc="http://www.springframework.org/schema/mvc"
           xmlns:aop="http://www.springframework.org/schema/aop"
           xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/mvc
           http://www.springframework.org/schema/mvc/spring-mvc.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context.xsd
    ">
        
        <mvc:annotation-driven/>
    
        <mvc:default-servlet-handler/>
        
        <context:component-scan base-package="controller">
        </context:component-scan>
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/"></property>
            <property name="suffix" value=".jsp"></property>
        </bean>
    </beans>

### 4.查询学生 ###

@Controller
    	public class StudentController { 
        HashMap hashMap = (HashMap) studentDao.Initialization();
    
        @RequestMapping("/selectstudent")
        public ModelAndView selectstudent() { 
            ModelAndView modelAndView = new ModelAndView();
            modelAndView.setViewName("student");
            modelAndView.addObject("list", hashMap);
            return modelAndView;
        }
    
    }

显示页面

<table id="table1">
    
            <tr class="head">
             <td>学号</td>
             <td>姓名</td>
             <td>性别</td>
             <td>地址</td>
             <td>删除</td>
             <td>详细</td>
            </tr>
        <c:forEach items="${list}" var="list" >
          <tr id="trPage">
            <td><a href=''>${ list.key}</a></td>
            <td><a href=''>${ list.value.name}</a></td>
            <td><a href=''>${ list.value.sex}</a></td>
            <td><a href=''>${ list.value.address}</a></td>
            <td><a href="http://localhost:8080/deletestudent?number=${list.key}">删除</a></td>
            <td><a href="http://localhost:8080/selectonestudent?number=${list.key}">详细</a></td>
          </tr>
        </c:forEach>
        <td><a href="http://localhost:8080/addstudent.jsp">添加</a></td>
    </table>

效果大概是这个样子:  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzUxNDc4_size_16_color_FFFFFF_t_70]

[https_github.com_fluoritess_SpringMvc-CRUD1]: https://github.com/fluoritess/SpringMvc-CRUD1
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzUxNDc4_size_16_color_FFFFFF_t_70]: /images/20220312/eb3e394dcf6f46aa9d6b6037e26453bb.png