Swagger（3）：Swagger入门案例

1 编写SpringBoot项目

新建一个Rest请求控制器。

package com.example.demo.controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class MyController {
    @PostMapping("/post")
    public String post(){
        return "post";
    }

    @GetMapping("/get")
    public String get(String a,String b){
        return "get";
    }

    @RequestMapping("/req")
    public String req(String m){
        return "req";
    }
}

2 导入Spring-fox依赖

在项目的pom.xml中导入Spring-fox依赖。目前最新版本为2.9.2，所以导入的依赖也是这个版本。其中springfox-swagger2是核心内容的封装。springfox-swagger-ui是对swagger-ui的封装。

<?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>swaggerDemo</artifactId>
    <version>1.0-SNAPSHOT</version>


    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.2.5.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>
    </dependencies>
</project>

3 添加注解

在SpringBoot的启动类中添加@EnableSwagger2注解。

添加此注解后表示对当前项目中全部控制器进行扫描。应用Swagger2

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@SpringBootApplication
@EnableSwagger2
public class MyApp {
    public static void main(String[] args) {
        SpringApplication.run(MyApp.class);
    }
}