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First Spring MVC ​

官方 Guid：Serving Web Content with Spring MVC

1. pom.xml ​

xml
<?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">
    <parent>
        <artifactId>liujiajia-me-spring-learn</artifactId>
        <groupId>liujiajia-me</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>liujiajia-me-spring-learn-firstmvc</artifactId>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
            <version>1.5.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <version>1.5.2.RELEASE</version>
            <optional>true</optional>
        </dependency>
    </dependencies>

    <properties>
        <java.version>1.8</java.version>
    </properties>

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

2. 控制器 ​

src/main/java/hello/GreetingController

java
package hello;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
public class GreetingController {
    @RequestMapping("/greeting")
    public String greeting(@RequestParam(value = "name", required = false, defaultValue = "World") String name, Model model) {
        model.addAttribute("name", name);
        return "greeting";
    }
}

3. View ​

src/main/resources/templates/greeting.html

这里使用了 thymeleaf 模板。

html
<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
    <head>
        <title>Getting Started: Serving Web Content</title>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    </head>
    <body>
        <p th:text="'Hello, ' + ${name} + '!'" />
    </body>
</html>

4. 启动程序 ​

src/main/java/hello/Application

java
package hello;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

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

5. 首页 ​

src/main/resources/static/index.html

html
<!DOCTYPE HTML>
<html>
    <head>
        <title>Getting Started: Serving Web Content</title>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    </head>
    <body>
        <p>Get your greeting <a href="/greeting">here</a></p>
    </body>
</html>

6. 查看 ​

启动 Application 后打开 http://localhost:8080 查看效果。

附 ​

  1. Understanding View Templates