SpringMVC---IDEA 搭建SpringMVC工程

1、新建工程

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一、使用idea新建maven項目，步驟如圖：

二、填寫項目座標信息

三、選擇項目保存位置，點擊完成

四、新建之後項目目錄以下圖

五、完善目錄結構

2、搭建springmvc環境

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一、pom.xml導入依賴包，配置xml以下

<?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.nanshen</groupId>
  <artifactId>springmvc</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>springmvc Maven Webapp</name>
  <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>5.0.8.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!--springmvc 核心包依賴--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</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-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!--servlet依賴--> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency> <!--mysql數據庫鏈接依賴--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.46</version> </dependency> <!--mybatis依賴--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.2</version> </dependency> </dependencies> </project> 複製代碼

二、配置spring applicationContext.xml文件
  a、建立applicationContext.xml文件：

  b、配置applicationContext.xml文件（只配置springmvc的話這個文件暫時能夠不配置，後續ssm框架搭建會配置此文件）   

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">


</beans>
複製代碼

三、配置springmvc.xml文件
  a、建立springmvc.xml文件：跟建立application.xml文件操做同樣
  b、配置springmvc.xml文件：（以下圖）   

<?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"
       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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 配置包掃描器 -->
    <context:component-scan base-package="com.nanshen.demo.controller"/>
    <!-- 配置註解驅動 -->
    <mvc:annotation-driven/>
    <!-- 視圖解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--前綴-->
        <property name="prefix" value="/WEB-INF/views/"/>
        <!--後綴-->
        <property name="suffix" value=".jsp"/>
    </bean>
    <!--返回數據編碼設置-->
    <mvc:annotation-driven>
        <mvc:message-converters register-defaults="true">
            <bean class="org.springframework.http.converter.StringHttpMessageConverter">
                <constructor-arg value="UTF-8" />
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>
</beans>
複製代碼

Ps:此處須要配置返回數據編碼格式爲UTF-8
四、配置web.xml文件，用以下配置代碼替換idea生成的web.xml文件代碼

<!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>
  <display-name>Archetype Created Web Application</display-name>
  <!--Spring MVC 配置 並添加監聽-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:/spring/*</param-value>
  </context-param>

  <!-- 字符過濾器 傳值亂碼-->
  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</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>

  <!--配置前端控制器 進行請求分發 DispatcherServlet本質也是一個Servlet -->
  <servlet>
    <!--名字能夠自定義-->
    <servlet-name>SpringMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring/springmvc.xml</param-value>
    </init-param>
    <!--標記容器啓動的時候就啓動這個servlet-->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <!--攔截全部-->
    <url-pattern>/</url-pattern>
  </servlet-mapping>

</web-app>
複製代碼

至此，springmvc環境已經搭建完成，接下來是測試：

3、測試：

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一、建立一個TestController

package com.nanshen.demo.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;

@RestController
@RequestMapping("/test")
public class TestController {
    @RequestMapping("/create")
    public String test(HttpServletResponse response){
        response.setCharacterEncoding("utf-8");
        return "springmvc建立成功";
    }
}

複製代碼

測試結果圖：

Ps:此處須要在springmvc.xml文件中配置返回數據編碼格式爲UTF-8