springmvc(一)---入门

最新推荐文章于 2025-05-10 13:07:03 发布

comeonzeze-邢泽涛

最新推荐文章于 2025-05-10 13:07:03 发布

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分类专栏： springmvc 文章标签： springmvc01入门

本文链接：https://blog.youkuaiyun.com/weixin_42321963/article/details/82834106

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本文详细介绍如何使用Maven创建SpringMVC项目，包括pom.xml配置、web.xml设置、DispatcherServlet配置、视图解析器定义及控制器实现，涵盖MyBatis、JUnit等依赖集成。

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第一步：创建项目：按照maven类型走就行

1：配置pom.xml（注意里面有配置jetty服务器的内容，可以直接配置jetty服务器）

<?xml version="1.0" encoding="UTF-8"?>

<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>com.zit</groupId>
    <artifactId>springmvc01</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>springmvc01</name>
    <dependencies>
        <!-- https://mvnrepository.com/artifact/junit/junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.12</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.2</version>
            <scope>provided</scope>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.1.0.RELEASE</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
            <scope>provided</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/javax.servlet.jsp/jsp-api -->
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.2.1-b03</version>
            <scope>provided</scope>
        </dependency>

        <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>


    </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>
        <testSourceDirectory>src/test/java</testSourceDirectory>
        <sourceDirectory>src/main/java</sourceDirectory>
        <!-- 解决无法加载资源配置文件 -->
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.properties</include>
                </includes>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.properties</include>
                </includes>
            </resource>
        </resources>

        <plugins>
            <!-- 配置maven编译插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>

            <!-- 配置jetty servlet服务器 -->
            <plugin>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>9.4.12.v20180830</version>
                <configuration>
                    <stopKey>exit</stopKey>
                    <stopPort>8989</stopPort>
                    <scanIntervalSeconds>10</scanIntervalSeconds>
                    <reload>manual</reload>
                    <webAppConfig>
                        <contextPath>/</contextPath>
                    </webAppConfig>
                    <httpConnector>
                        <port>80</port>
                    </httpConnector>
                </configuration>
                <executions>
                    <execution>
                        <id>jetty-run</id>
                        <phase>test</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>


    </build>

</project>

配置src/main/webapp/WEB-INF/web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
          http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <display-name>springmvc01</display-name>
    <!--配置springmvc servlet-->
    <servlet>
        <servlet-name>smvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--默认加载配置文件/WEB-INF/smvc-servlet.xml-->


        <!--如下配置，可以指定修改springmvc文件的名称和位置，classpath*代表resources目录-->
        <init-param>
        <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>


    </servlet>
    <servlet-mapping>
        <servlet-name>smvc</servlet-name>
     <!--   <url-pattern>/*</url-pattern>-->
                <url-pattern>*.do</url-pattern>
                <url-pattern>*.action</url-pattern>
    </servlet-mapping>


    <!--配置web项目的web.xml文件的首页-->
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

配置resources里面的文件（src/main/resources）

src/main/resources/springmvc.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:p="http://www.springframework.org/schema/p"
       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/aop http://www.springframework.org/schema/aop/spring-aop.xsd
				       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置handerAdapter  适配器 -->
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>

    <!-- 处理映射器 根据bean name 名称进行查找 -->
    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>

    <!-- 配置视图渲染器 -->
    <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <!-- 将视图名 渲染后视图的前缀 -->
        <property name="prefix" value="/WEB-INF/template/"/>
        <!-- 渲染后视图的后缀 -->
        <property name="suffix" value=".jsp"/>
    </bean>


    <bean class="com.zit.controller.UserController" name="/user.action" />
    <!-- 引入其它配置文件 -->
    <import resource="user.xml"/>
</beans>

src/main/resources/user.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:p="http://www.springframework.org/schema/p"
       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">
    <bean class="com.zit.controller.TestController" name="/uu.action" />
</beans>

配置jetty服务器

配置完成

创建测试文件src/main/java

文件1：src/main/java/com.zit.controller.TestController.java文件

package com.zit.controller;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;

public class TestController implements Controller {
    @Override
    public ModelAndView handleRequest(HttpServletRequest req, HttpServletResponse resp) throws Exception {
        resp.setCharacterEncoding("utf-8");
        resp.setContentType("text/html;charset=utf-8");
        PrintWriter out = resp.getWriter();
        out.print("<h3>Test-SpringMVC-world-中文效果</h3>");
        out.flush();
        out.close();
        System.out.println("hello-test");
        return null;
    }
}

文件2：src/main/java/com.zit.controller.UserController.java文件

package com.zit.controller;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class UserController  implements Controller {
    @Override
    public ModelAndView handleRequest(HttpServletRequest req, HttpServletResponse resp) throws Exception {
        ModelAndView mv=new ModelAndView("user");
        mv.addObject("name","张三丰");
        mv.addObject("addr",new String[]{"郑州","北京","天津"});
        //mv.setViewName("WEB-INF/show");//找//WEB-INF/show.jsp 渲染/WEB-INF/show.jsp
        //mv.setViewName("WEB-INF/show");//找//WEB-INF/show.jsp 渲染/WEB-INF/show.jsp
        return mv;
    }
}

测试文件 jsp

创建src/main/webapp/WEB-INF/template/user.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h3>${name}</h3>
<c:forEach items="${addr}" var="ad">
    <p>${ad}</p>
</c:forEach>
</body>
</html>

全部创建完成后，启动服务器，去http://localhost/user.action测试

http://localhost/uu.aciton测试

整个项目结构如下：