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造轮子-简易版spring

皮皮球场 2022-02-14 阅读 74

自研框架文档:

  1. 新建一个maven项目命名为simpleFramework

  2. 在java目录下新建com.bear包

  3. main同级新建webapp/WEB-INF/jsp

  4. hello.jsp文件

    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>Title</title>
    </head>
    <body>
        <h2>${name}</h2>
    </body>
    </html>
    
@WebServlet("/hello")
public class Demo extends HttpServlet {

   @Override
   protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
      String name = "我的第一个spring框架";
      req.setAttribute("name",name);
      req.getRequestDispatcher("/WEB-INF/jsp/Hello.jsp").forward(req,resp);
   }
}

第一个版本的pom文件

<?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>org.example</groupId>
    <artifactId>simpleFrame</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <dependencies>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>2.3.1</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>
    <build>
        <finalName>simpleFramework</finalName>
        <pluginManagement>
            <plugins>
            <!--            这里maven使用tomcat7版本,打包使用-->
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.8.1</version>
                </plugin>
                <plugin>
                    <groupId>org.apache.tomcat.maven</groupId>
                    <artifactId>tomcat7-maven-plugin</artifactId>
                    <version>2.2</version>
                    <configuration>
                        <path>/${project.artifactId}</path>
                        <uriEncoding>UTF-8</uriEncoding>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

在配置文件下Command line: tomcat7:run在这里插入图片描述
在这里插入图片描述

项目启动,点击run,访问 http://localhost:8080/simpleFrame/hello

截图如下:

举报

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