Spring

clean과 서버 재실행은 개필수! ㄹㅇㅈㅂㅜㅜ

기초적인 설정들은 ppt에 있다.

요약하자면 maven project를 만들고 

- pom.xml 에서 저장하여 각 라이브러리들을 추가해준다. <dependencies>태그 안의 내용들이 라이브러리 추가해주는것

<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.douzone</groupId>
    <artifactId>hellospring</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>     
    <properties>  
        <org.springframework-version>4.2.1.RELEASE</org.springframework-version>
    </properties> 
    <dependencies> 
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>3.2.1</version>
                <configuration>
                    <warSourceDirectory>webapp</warSourceDirectory>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

- web.xml에 dispatchservlet에 대한 서블릿 매핑을 추가

<?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>hellospring</display-name>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
    </welcome-file-list>
    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    </servlet>
 
    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
 
</web-app>

- WEB-INF 밑views 폴더 생성후 spring-servle.xml 에 컨트롤러로 보내준다.

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

-  HelloController를 @Controller해준후 RequestMapping을 "/hello"로해준다. return에 보여주고자할 페이지를 보여준다.

package com.douzone.hellospring.controller;
 
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
 
@Controller
public class HelloController {
    
    @RequestMapping("/hello")
    public String hello() {
        return "/WEB-INF/views/hello.jsp";
    }
    //실행시 리턴
}
 

- 추가적으로 해준 것들

       1) pom.xml 구성

       2) DispatcherServlet 등록( web.xml )

       3) 서블릿 애플리케이션 컨텍스트 설정 (spring-servlet.xml)

       4) Controller 작성

  - 생략된 것들

      1) 서블릿 작성

      2) 파라미터 처리 request.getParameter()

      3) forwarding

mvc순서 

1. DispatcherServlet

2. Handler Mapping

3. Controller

4. ModelAndView

5. View Resolver

6. DispatcherServlet->View 

다음 정리 - 실행 순서 및 코드에서 알아보기