SSM框架Demo实例

最新推荐文章于 2025-10-02 10:33:00 发布

原创最新推荐文章于 2025-10-02 10:33:00 发布 · 402 阅读

CC 4.0 BY-SA版权

本实例仅仅是下来自己练习整理的编码，相比实际项目肯定是有差异存在，但整体的基本框架是一致的，另外，当然Spring-Boot的强大，已经不需要这一套繁琐的前期配置，的确如此，这个不在这里讲述。在有些地方可能没用到最新的编码方法去实现，希望不要介怀，同时也希望能互相交流学习。
当前（2018-12-18），我只编写了Spring MVC的部分，后面会持续更新.
1.project文件格局：
在这里插入图片描述
2. pom依赖：（当前暂时没有用到Mybatis部分，所以在依赖里没有注入进来）

<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>org.springmvc.echo</groupId>
  <artifactId>springmvc</artifactId>
  <version>1.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <spring.version>5.1.2.RELEASE</spring.version>
    <jetty.version>9.4.14.v20181114</jetty.version>
    <mybatis.version>3.4.6</mybatis.version>
    <jackson.version>2.9.5</jackson.version>
  </properties>
  
  <build>
    <plugins>
        <plugin>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>jetty-maven-plugin</artifactId>
            <version>${jetty.version}</version>
            <configuration>
                <httpConnector>
                    <port>8098</port>
                    <idleTimeout>30000</idleTimeout>
                </httpConnector>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.1</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
    </plugins>
  </build>
  
  <dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>${mybatis.version}</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>${jackson.version}</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>${jackson.version}</version>
    </dependency>
  </dependencies>
</project>

这里需要注意的是，一定要把jackson包注入进来，否则使用注解@ResponseBody无法转换数据格式。
在这里插入图片描述
3.web.xml:

<?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>springmvc</display-name>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:/META-INF/spring.xml</param-value>
  </context-param>
  
  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <async-supported>true</async-supported>
    <init-param>
        <param-name>encoding</param-name>
        <param-value>UTF-8</param-value>
    </init-param>
    <init-param>
        <param-name>forceEncoding</param-name>
        <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  
  
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  
  <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:/META-INF/springmvc-servlet.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>springMVC</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

4.spring.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"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
	<context:annotation-config />
	<context:component-scan base-package="org.springmvc">
		<context:exclude-filter type="annotation"
			expression="org.springframework.stereotype.Controller" />
		<context:exclude-filter type="annotation"
			expression="org.springframework.web.bind.annotation.ControllerAdvice" />
	</context:component-scan>
</beans>

5.springmvc-servlet.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:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
	<context:component-scan base-package="org.springmvc">
		<context:include-filter type="annotation"
			expression="org.springframework.stereotype.Controller" />
		<context:include-filter type="annotation"
			expression="org.springframework.web.bind.annotation.ControllerAdvice" />
	</context:component-scan>
	
	<mvc:default-servlet-handler/>
	
	<mvc:annotation-driven />
	
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
	   <property name="prefix" value="/WEB-INF/jsp/"/>
	   <property name="suffix" value=".jsp"/>
	</bean>

</beans>

6.UserController:

package org.springmvc.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springmvc.entity.User;
import org.springmvc.service.UserService;

@Controller
@RequestMapping("user")
public class UserController {
	@Autowired
	private UserService userService;

	@RequestMapping(value = "/getUser", method = RequestMethod.GET)
	public @ResponseBody User findPerson(@RequestParam Long id) {
		User user = this.userService.findById(id);
		return user;
	}

	@RequestMapping("/mvp")
	public String hello(ModelMap model, @RequestParam(defaultValue = "I am Derrick Rose!") String message) {
		model.addAttribute("message", message);
		return "hello";

	}
}

这里补充一点：
@RestController等同于 @Controller + @ResponseBody
由于这里考虑到页面view的返回，所以没有加注。

其他代码就没必要提到了，mvn jetty:run成功后，请求得到的结果是：
在这里插入图片描述