Swagger接入OAuth2认证

1.pom依赖

在所要使用Swagger的项目引用Swagger依赖


    
        io.springfox
        springfox-swagger2
        2.9.2
    
    
        io.springfox
        springfox-swagger-ui
        2.9.2

2.Swagger配置类

该配置类上使用@EnableSwagger2标注，表示开启Swagger功能

package cc.mrbird.febs.server.system.configure;

import cc.mrbird.febs.server.system.properties.FebsServerSystemProperties;
import cc.mrbird.febs.server.system.properties.FebsSwaggerProperties;
import com.baomidou.mybatisplus.core.parser.ISqlParser;
import com.baomidou.mybatisplus.extension.parsers.BlockAttackSqlParser;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.OAuthBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.AuthorizationScope;
import springfox.documentation.service.Contact;
import springfox.documentation.service.GrantType;
import springfox.documentation.service.ResourceOwnerPasswordCredentialsGrant;
import springfox.documentation.service.SecurityReference;
import springfox.documentation.service.SecurityScheme;
import springfox.documentation.spi.documentationType;
import springfox.documentation.spi.service.contexts.SecurityContext;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;


@Configuration
@EnableSwagger2
public class FebsWebConfigure {
    
    @Autowired
    private FebsServerSystemProperties properties;
    
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
        List sqlParserList = new ArrayList<>();
        sqlParserList.add(new BlockAttackSqlParser());
        paginationInterceptor.setSqlParserList(sqlParserList);
        return paginationInterceptor;
    }
    
    @Bean
    public Docket swaggerApi() {
        FebsSwaggerProperties swagger = properties.getSwagger();
        return new Docket(documentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.basePackage(swagger.getbasePackage()))
                .paths(PathSelectors.any())
                .build()
                .apiInfo(apiInfo(swagger))
    }
    
    private ApiInfo apiInfo(FebsSwaggerProperties swagger) {
        return new ApiInfo(
                swagger.getTitle(),
                swagger.getDescription(),
                swagger.getVersion(),
                null,
                new Contact(swagger.getAuthor(), swagger.getUrl(), swagger.getEmail()),
                swagger.getLicense(), swagger.getLicenseUrl(), Collections.emptyList());
    }
}

swaggerApi方法的apis(RequestHandlerSelectors.basePackage(swagger.getbasePackage()

))表示将cc.mrbird.febs.server.system.controller路径下的所有Controller都添加进去，paths(PathSelectors.any())表示Controller里的所有方法都纳入。

apiInfo用于定义一些API页面信息，比如作者名称，邮箱，网站链接，开源协议等等。

这里固定配置较多（阿里编程规范称为“魔法值”），我们可以将它抽取为一个配置文件。在febs-system模块的cc.mrbird.febs.server.system路径下新建properties包，然后在该包下新建FebsSwaggerProperties配置文件类：

@Data
public class FebsSwaggerProperties{
    
    private String basePackage;
    private String title;
    private String description;
    private String version;
    private String author;
    private String url;
    private String email;
    private String license;
    private String licenseUrl;
    
    private String grantUrl;
    private String name;
    private String scope;
    
}

@Data
@SpringBootConfiguration
@PropertySource(value = {"classpath:febs-server-system.properties"})
@ConfigurationProperties(prefix = "febs.server.system")
public class FebsServerSystemProperties {
    
    private String anonUrl;
    
    private FebsSwaggerProperties swagger = new FebsSwaggerProperties();
}

然后在febs-server-system.properties配置文件的免认证路径里添加swagger相关资源配置：

重启febs-server-system模块，访问 http://localhost:8301/system/swagger-ui.html

3.认证oauth2

虽然已经成功接入了Swagger，但是因为我们的资源都是受资源服务器保护的，所以Swagger并不能进行正常的接口测试。所以要进行oauth2的认证

在febs-auth模块里配置一个新的Client，专门用于Swagger令牌发放。在febs-auth模块的febs-auth.properties配置文件里添加如下配置:

febs.auth.clients[1].client=swagger
febs.auth.clients[1].secret=123456
febs.auth.clients[1].grantType=password
febs.auth.clients[1].scope=test

修改Swagger的配置类

package cc.mrbird.febs.server.system.configure;

import cc.mrbird.febs.server.system.properties.FebsServerSystemProperties;
import cc.mrbird.febs.server.system.properties.FebsSwaggerProperties;
import com.baomidou.mybatisplus.core.parser.ISqlParser;
import com.baomidou.mybatisplus.extension.parsers.BlockAttackSqlParser;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.OAuthBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.AuthorizationScope;
import springfox.documentation.service.Contact;
import springfox.documentation.service.GrantType;
import springfox.documentation.service.ResourceOwnerPasswordCredentialsGrant;
import springfox.documentation.service.SecurityReference;
import springfox.documentation.service.SecurityScheme;
import springfox.documentation.spi.documentationType;
import springfox.documentation.spi.service.contexts.SecurityContext;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;


@Configuration
@EnableSwagger2
public class FebsWebConfigure {
    
    @Autowired
    private FebsServerSystemProperties properties;
    
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
        List sqlParserList = new ArrayList<>();
        sqlParserList.add(new BlockAttackSqlParser());
        paginationInterceptor.setSqlParserList(sqlParserList);
        return paginationInterceptor;
    }
    
    @Bean
    public Docket swaggerApi() {
        FebsSwaggerProperties swagger = properties.getSwagger();
        return new Docket(documentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.basePackage(swagger.getbasePackage()))
                .paths(PathSelectors.any())
                .build()
                .apiInfo(apiInfo(swagger))
                .securitySchemes(Collections.singletonList(securityScheme(swagger)))
                .securityContexts(Collections.singletonList(securityContext(swagger)));
    }
    
    private ApiInfo apiInfo(FebsSwaggerProperties swagger) {
        return new ApiInfo(
                swagger.getTitle(),
                swagger.getDescription(),
                swagger.getVersion(),
                null,
                new Contact(swagger.getAuthor(), swagger.getUrl(), swagger.getEmail()),
                swagger.getLicense(), swagger.getLicenseUrl(), Collections.emptyList());
    }
    
    private SecurityScheme securityScheme(FebsSwaggerProperties swagger) {
        GrantType grantType = new ResourceOwnerPasswordCredentialsGrant(swagger.getGrantUrl());
        
        return new OAuthBuilder()
                .name(swagger.getName())
                .grantTypes(Collections.singletonList(grantType))
                .scopes(Arrays.asList(scopes(swagger)))
                .build();
    }
    
    private SecurityContext securityContext(FebsSwaggerProperties swagger) {
        return SecurityContext.builder()
                .securityReferences(Collections.singletonList(new SecurityReference(swagger.getName(), scopes(swagger))))
                .forPaths(PathSelectors.any())
                .build();
    }
    
    private AuthorizationScope[] scopes(FebsSwaggerProperties swagger) {
        return new AuthorizationScope[]{
                new AuthorizationScope(swagger.getScope(), "")
        };
    }
}

通过Docket的securitySchemes和securityContexts方法设置了安全策略和安全上下文。

在securityScheme方法中，我们通过OAuthBuilder对象构建了安全策略，主要配置了认证类型为ResourceOwnerPasswordCredentialsGrant（即密码模式），认证地址为http://localhost:8301/auth/oauth/token（即通过网关转发到认证服务器），scope为test，和febs-auth模块里定义的一致。这个安全策略我们将其命名为febs_oauth_swagger。

在securityContext方法中，我们通过febs_oauth_swagger名称关联了上面定义的安全策略，并且通过forPaths(PathSelectors.any())设置所有API接口都用这个安全上下文。

重启服务，重新访问Swagger服务：

会有一个认证的按钮，点击进行认证

认证成功之后，即可正常进行接口测试了。

Swagger接入OAuth2认证

1.pom依赖 在所要使用Swagger的项目引用Swagger依赖 io.springfox springfox-swagger2 2.9.2 io.springfox springfox-swagger-ui 2.9.2

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