Spring Boot之簡單的MVC

時間 2019-11-25

標籤 spring boot 簡單 mvc 欄目 Spring 简体版

原文原文鏈接

最近開始看Spring Boot，發現其開發起來真是方便。今天就來實現一個簡單的Spring MVC 請求，純Java代碼的哦。html

一、Maven必不可少，先看看都加載了那些依賴：java

<?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.selrain</groupId>
    <artifactId>chapter-1</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>chapter-1</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
              //thymeleaf模板，待會用到
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

二、Controllerweb

@Controller
public class GreetingController {
    @RequestMapping("/greeting")
    public String greeting(String name, Model m){
        m.addAttribute("name",name);
        return "greeting";
    }
}

三、頁面，放在src/main/resources/templates/目錄下，方便解析spring

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8"/>
    <title>Title</title>
</head>
<body>
<p th:text="'Hello, ' + ${name} + '!'" />
</body>
</html>

四、最後是主程序入口：）apache

@SpringBootApplication
public class Chapter1Application {

    public static void main(String[] args) {
        SpringApplication.run(Chapter1Application.class, args);
    }
}

最後，啓動項目，在瀏覽器輸入地址：http://localhost:8080/greeting?name=world 看看效果.瀏覽器

最最後。想要設置歡迎頁的同窗，在src/main/resources/建立index.html頁面，當輸入http://localhost:8080/ 程序就會自動跳入該頁面啦app

剛開始學哦，共同進步：）maven

官網入口：ide

https://spring.io/guides/gs/serving-web-content/spring-boot