對SpringBoot2.7.3版本,swagger2.x版本不再適用,所以就選擇了swagger3版本,但是相較于swagger2版本,swagger3版本更加麻煩,具體教程如下:
第一步:引入依賴
<dependency> <groupId>io.springfox</groupId> <artifactId>springfox-boot-starter</artifactId> <version>3.0.0</version> </dependency>
第二步:在啟動類Application中加上注解@EnableOpenApi
@EnableOpenApi
@SpringBootApplication
public class SpringBootApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBoot01Application.class, args);
}
}第三步:配置接口文檔config
package com.example.springboot01.config;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.ReflectionUtils;
import org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.oas.annotations.EnableOpenApi;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.spring.web.plugins.WebMvcRequestHandlerProvider;
import java.lang.reflect.Field;
import java.util.List;
import java.util.stream.Collectors;
import springfox.documentation.service.Contact;
@Configuration
@EnableOpenApi
public class SwaggerConfiguration {
@Bean
public Docket createRestApi(){
return new Docket(DocumentationType.OAS_30)
.apiInfo(apiInfo())
.select()
.apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
.paths(PathSelectors.any())
.build();
}
private ApiInfo apiInfo(){
return new ApiInfoBuilder()
.title("Swagger3接口文檔")
.description("前后端分離的接口文檔")
.contact(new Contact("莊子","http://www.yinnangtuo.cn","3168765867@qq.com"))
.version("1.0")
.build();
}
@Bean
public static BeanPostProcessor springfoxHandlerProviderBeanPostProcessor() {
return new BeanPostProcessor() {
@Override
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
if (bean instanceof WebMvcRequestHandlerProvider) {
customizeSpringfoxHandlerMappings(getHandlerMappings(bean));
}
return bean;
}
private <T extends RequestMappingInfoHandlerMapping> void customizeSpringfoxHandlerMappings(
List<T> mappings) {
List<T> copy = mappings.stream().filter(mapping -> mapping.getPatternParser() == null)
.collect(Collectors.toList());
mappings.clear();
mappings.addAll(copy);
}
@SuppressWarnings("unchecked")
private List<RequestMappingInfoHandlerMapping> getHandlerMappings(Object bean) {
try {
Field field = ReflectionUtils.findField(bean.getClass(), "handlerMappings");
field.setAccessible(true);
return (List<RequestMappingInfoHandlerMapping>) field.get(bean);
}
catch (IllegalArgumentException | IllegalAccessException e) {
throw new IllegalStateException(e);
}
}
};
}
}第四步:在application.properties文件中加入語句
spring.mvc.pathmatch.matching-strategy=ant_path_matcher
或者在application.yml中加入
spring: mvc: pathmatch: matching-strategy: ant_path_matcher
第五步:打開瀏覽器地址欄輸入
http://localhost:8001/swagger-ui/index.html
注意:swagger2的網(wǎng)頁路徑為http:/localhost:8001/swagger-ui.html

Swagger3 的使用
下面我們開始使用Swagger3,主要來介紹 Swagger3 中的幾個常用的注解,分別在實體類上Controller 類上以及Controller 中的方法上,最后我們看一下 Swagger3 是如何在頁面上呈現(xiàn)在線接口文檔的,并且結(jié)合Controller 中的方法在接口中測試一下數(shù)據(jù)
實體類注解:
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
@Data
@ApiModel(value = "用戶實體類")
public class User {
@ApiModelProperty(value = "用戶唯一標(biāo)識")
private Long id;
@ApiModelProperty(value = "用戶名")
private String username;
@ApiModelProperty(value = "用戶密碼")
private String userpwd;
public User(Long id, String username, String userpwd) {
this.id = id;
this.username = username;
this.userpwd = userpwd;
}
}解釋下 @ApiModel 和 @ApiModelProperty 注解:
@ApiModel 注解用于實體類,表示對類進行說明,用于參數(shù)用實體類接收。
@ApiModelProperty 注解用于類中屬性,表示對 model 屬性的說明或者數(shù)據(jù)操作更改。
Controller 類中相關(guān)注解
@RestController
@RequestMapping("/swagger")
// @Api(value = "Swagger3在線接口文檔") swagger2使用value
@Api(tags = "Swagger3在線接口文檔") swagger3使用 tags
public class SwaggerController {
@GetMapping("/get/{id}")
@ApiOperation(value = "根據(jù)用戶唯一標(biāo)識獲取用戶信息")
public JsonResult<User> getUserInfo(@PathVariable @ApiParam(value = "用戶唯一標(biāo)識") Long id) {
// 模擬數(shù)據(jù)庫中根據(jù)id獲取User信息
User user = new User(id, "zhuangzi", "123456");
return new JsonResult(user);
}
}我們來學(xué)習(xí)一下 @Api 、 @ApiOperation 和 @ApiParam 注解。
@Api 注解用于類上,表示標(biāo)識這個類是 swagger 的資源。
@ApiOperation 注解用于方法,表示一個 http 請求的操作。
@ApiParam 注解用于參數(shù)上,用來標(biāo)明參數(shù)信息。
再次瀏覽信息頁面信息

測試一下:

