今天 這麼遲了補一篇 SpringBootRESTfull API簡單專案的快速搭建

看第一篇文章。建立工程

編輯pom.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">
	<modelVersion>4.0.0</modelVersion>

	<groupId>com.lyw</groupId>
	<artifactId>springboot02</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>springboot02</name>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.4.0.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>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>
	</dependencies>

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

首先看看Spring-boot-start-web包的依賴

可以看到 其實這個包就是一些 日誌包 還有內建Tomcat JSON包 SpringMVC/Web包 這也就差不多解釋了為什麼直接跑起來了

其實這個就是可以理解為簡單封裝了一下Spring 使得我們配置更加便捷。

spring-boot-devtools的引入，其依賴包的學習

這個包 包含一些Spring的核心包。。。

spring-boot-maven-plugin 最後還加入了 一個SpringBoot的Maven外掛

開始寫程式碼。。。

Springboot2Application.java

package com.lyw;

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

@SpringBootApplication
public class Springboot02Application {

	public static void main(String[] args) {
		SpringApplication.run(Springboot02Application.class, args);
	}
}
 

package com.lyw.bean;

import java.util.Date;

/**
 * Title: User Description: 實體類 Company: blog.csdn.net/lu1005287365/
 * 
 * @author L lulu
 */
public class User {
	private Integer id;
	private String name;
	private Date date;
	private char sex;

	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Date getDate() {
		return date;
	}

	public void setDate(Date date) {
		this.date = date;
	}

	public char getSex() {
		return sex;
	}

	public void setSex(char sex) {
		this.sex = sex;
	}

}
 

package com.lyw.controller;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

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

import com.lyw.bean.User;

@RestController
@RequestMapping(value = "/user")
public class UserController {

	@RequestMapping
	public String index() {
		return "Hello BeiJing";
	}

	@RequestMapping(value = "/getMap")
	public Map<String, Object> getThisMap(String msg) {
		Map<String, Object> map = new HashMap<>();
		map.put("Name", "LYW");
		map.put("Sex", "大老爺們");
		map.put("Message", msg);
		return map;
	}

	@RequestMapping(value = "/getUser/{name}/{sex}")
	public User getUser(@PathVariable String name, @PathVariable char sex) {
		User user = new User();
		user.setId(12);
		user.setName(name);
		user.setDate(new Date());
		user.setSex(sex);
		return user;
	}

}

執行專案:

直接執行main方法或者使用maven命令: spring-boot:run

上面就是執行的結果。。

解釋

@RestController註解：看看原始碼 其實就是 又封裝了一層 將@Controller和@RsponseBody兩個註解合在一起

這樣一來應該對SpringBoot 也有了初步的認識。。。並且會簡單的使用