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SpringBoot項目中Swagger的配置和使用

本文轉載自   查看原文   2020-11-23 19:05   6798    【Java】--SpringBoot

一、概述

        Swagger是一個規范、完整的框架，用於生成、描述、調用和可視化Restful風格的Web服務。使用Swagger可以使前端和后端人員實時的進行接口查看和協調。也可對相關的接口進行測試。

二、集成Swagger

1、創建基於Maven的項目，結構目錄如下

2、添加swagger的pom.xml依賴


<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.4.RELEASE</version>
        <relativePath/>
    </parent>
    <groupId>com.whw</groupId>
    <artifactId>swagger</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>swagger</name>
    <description>Demo project for Spring Boot Swagger</description>

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

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <!--Swagger2-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <exclusions>
                <!--swagger2.92默認依賴1.5.0版本的models和annotations
                排除掉此版本，引入一個其他版本，不讓項目啟動時未報Illegal DefaultValue null for parameter type integer的警告-->
                <exclusion>
                    <groupId>io.swagger</groupId>
                    <artifactId>swagger-models</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>io.swagger</groupId>
                    <artifactId>swagger-annotations</artifactId>
                </exclusion>
            </exclusions>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-models</artifactId>
            <version>1.5.22</version>
        </dependency>
        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-annotations</artifactId>
            <version>1.5.22</version>
        </dependency>

        <!--Swagger-UI-->
        <!--訪問路徑：http://localhost:8080/swagger-ui.html-->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>

        <!--swaggerui  幾個自定義界面方便查看接口-->
        <!--訪問路徑：http://localhost:8080/doc.html-->
        <dependency>
            <groupId>com.github.xiaoymin</groupId>
            <artifactId>swagger-bootstrap-ui</artifactId>
            <version>1.9.5</version>
        </dependency>

        <!--訪問路徑：http://localhost:8080/document.html-->
        <!--<dependency>
            <groupId>com.zyplayer</groupId>
            <artifactId>swagger-mg-ui</artifactId>
            <version>1.0.6</version>
        </dependency>-->

        <!--訪問路徑：http://localhost:8080/docs.html-->
        <!-- <dependency>
             <groupId>com.github.caspar-chen</groupId>
             <artifactId>swagger-ui-layer</artifactId>
             <version>1.1.3</version>
         </dependency>-->
    </dependencies>

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

</project>

3、自定義響應狀態碼枚舉：RestResponseCode


package com.whw.swagger.config;
/**
 * @描述 自定義響應狀態碼枚舉
 **/
public enum  RestResponseCode {
    SUCCESS(200, "success"),
    FAIL(300, "fail"),
    BODY_NOT_MATCH(400, "請求的數據格式不符！"),
    SIGNATURE_NOT_MATCH(401, "請求的數字簽名不匹配！"),
    NOT_FOUND(404, "未找到該資源！"),
    INTERNAL_SERVER_ERROR(500, "服務器內部錯誤！"),
    SERVER_BUSY(503, "服務器正忙，請稍后再試！"),
    UNDEFINED_ERROR(1000, "未知錯誤！"),
    NOTE(1001, "自定義提示！"),
    PARAMETERERROR(409, "參數錯誤！"),
    NOTLOGIN(402, "登陸錯誤！"),
    EXPIRE(1002, "Session過期了");
    int code;
    String msg;

    RestResponseCode(int code, String msg) {
        this.code = code;
        this.msg = msg;
    }

    public int getCode() {
        return code;
    }

    public void setCode(int code) {
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }
}

4、新建Swagger配置類：SwaggerConfig

package com.whw.swagger.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.core.env.Profiles;
import org.springframework.web.bind.annotation.RequestMethod;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.builders.ResponseMessageBuilder;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.service.ResponseMessage;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
@Configuration
@EnableSwagger2//開啟Swagger
public class SwaggerConfig {
    /*配置多個分組，只需要配置多個Docket即可，設置不同分組掃描不同的包*/
    @Bean
    public Docket docketA() {
        return new Docket(DocumentationType.SWAGGER_2).groupName("A");
    }

    @Bean
    public Docket docketB() {
        return new Docket(DocumentationType.SWAGGER_2).groupName("B");
    }

    @Bean
    public Docket docketC() {
        return new Docket(DocumentationType.SWAGGER_2).groupName("C");
    }

    //配置Swagger的bean實例
    @Bean
    public Docket docket(Environment environment) {
        List<ResponseMessage> responseMessageList = new ArrayList<>();
        Arrays.stream(RestResponseCode.values()).forEach(stateCodeEnum ->
        {
            responseMessageList.add(
                    /*new ResponseMessageBuilder()
                            .code(stateCodeEnum.getCode())
                            .message(stateCodeEnum.getMsg())
                            .responseModel(new ModelRef(stateCodeEnum.getMsg()))
                            .build());//這種形式swagger提示自定義返回msg找不到*/
                    new ResponseMessageBuilder()
                            .code(stateCodeEnum.getCode())
                            .message(stateCodeEnum.getMsg())
                            .build());
        });
        //設置要顯示的Swagger環境
        Profiles profiles = Profiles.of("dev");
        //獲取項目環境：是生產環境還是發布環境
        boolean flag = environment.acceptsProfiles(profiles);
        return new Docket(DocumentationType.SWAGGER_2)
                //添加全局狀態碼
                .globalResponseMessage(RequestMethod.GET, responseMessageList)
                .globalResponseMessage(RequestMethod.POST, responseMessageList)
                .globalResponseMessage(RequestMethod.PUT, responseMessageList)
                .globalResponseMessage(RequestMethod.DELETE, responseMessageList)
                .apiInfo(apiInfo())
                .groupName("大華子")
                .enable(flag)//是否啟用swagger，如果為false則swagger不能再瀏覽器中訪問
                .select()//通過select()方法配置掃描接口,RequestHandlerSelectors配置如何掃描接口
                //指定掃描的api包
                .apis(RequestHandlerSelectors.basePackage("com.whw.swaggerdemo.controller"))
                //.paths(PathSelectors.ant("/sys/**"));//通過paths()方法配置掃描接口,PathSelectors配置如何掃描接口
                .build();
                /*
                * RequestHandlerSelectors除了設置basePackage外還可以配置其他方式掃描接口
                * any():掃描所有，項目中的所有接口都會被掃描到
                *
                * none():不掃描接口
                *
                * 通過方法上的注解掃描，如withMethodAnnotation(GetMapping.class)只掃描get請求
                * withMethodAnnotation(final Class<? extends Annotation> annotation):
                *
                * // 通過類上的注解掃描，如.withClassAnnotation(Controller.class)只掃描有controller注解的類中的接口
                * withClassAnnotation(final Class<? extends Annotation> annotation)
                *
                * basePackage(final String basePackage):根據包路徑掃描接口
                * */
                /*
                * PathSelectors的可選值有以下幾種
                * any()：任何請求都掃描
                * none()：任何請求都不掃描
                * regex(final String pathRegex)：通過正則表達式控制
                * ant(final String antPattern)：通過ant()控制
                * */
    }

    private ApiInfo apiInfo() {
        Contact contact = new Contact("大華子", "", "xxxxxxxxx@qq.com");
        return new ApiInfo(
                "大華子的SwaggerAPI文檔",
                "不斷學習，不斷進步",
                "1.0",
                "urn:tos",
                contact,
                "Apache 2.0",
                "http://www.apache.org/licenses/LICENSE-2.0",
                new ArrayList());
    }
}

5、新建用戶實體類：User

package com.whw.swagger.pojo;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
@ApiModel("用戶實體類")
public class User {
    @ApiModelProperty("id")
    private Integer id;
    @ApiModelProperty("用戶名")
    public String username;
    @ApiModelProperty("密碼")
    public String password;

    public Integer getId() {
        return id;
    }

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

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

6、新建用戶操作控制器：SysUserController

package com.whw.swagger.controller;
import com.whw.swagger.pojo.User;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
@Api(tags = "用戶操作模塊API")//作用在模塊API類上，對API模塊進行說明
@RestController(value = "/sys/user/")
public class SysUserController {
    @ApiOperation("添加用戶接口")//作用在API方法上，對操作進行說明
    @PostMapping(value = "/add")
    public String add(User user) {
        return "success";
    }

    @ApiOperation("根據ID查詢用戶")
    @GetMapping(value = "/user")
    //作用在參數上，對參數進行說明
    public User find(
            @ApiParam(name = "用戶ID", required = true) Integer id) {
        return new User();
    }

    @ApiOperation("更新用戶")
    @PostMapping(value = "/update")
    public String update(
            @ApiParam("用戶對象") User user) {
        return "success";
    }

    @ApiOperation("刪除用戶")
    @GetMapping(value = "/delete")
    public Integer delete(@ApiParam("用戶ID") Integer id) {
        return 1;
    }
}

7、application.properties中配置

spring.profiles.active=dev

8、訪問默認UI風格Swagger

地址：http://localhost:8081/swagger-ui.html

9、訪問bootstrap的UI風格Swagger

地址：http://localhost:8081/doc.html

10、項目demo下載地址

鏈接：https://pan.baidu.com/s/1WvZ0K_u6TKcv08QPPLI-8A
提取碼：5ypy


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