在作項目的時候,有時候須要提供其它平臺(如業務平臺)相關的HTTP接口,業務平臺則經過開放的HTTP接口獲取相關的內容,並完成自身業務~html
提供對外開放HTTP API接口,比較經常使用的是採用Spring MVC來完成。前端
本文的目標是先搭建一個簡單的Spring MVC應用,而後爲Spring MVC整合SpringFox-Swagger以及SpringFox-Swagger-UI,最終,達到Spring MVC對外開放接口API文檔化。java
以下圖所示:git
Eclipse中,File --> New --> Maven Project, github
點擊「Next」按鈕, 而後選擇 「maven-archetype-webapp」,web
繼續點擊「Next」按鈕,而後指定spring
點擊「Finish」 按鈕結束~ 就這樣,一個簡單的Web工程就建好了~apache
可是,json
默認是使用J2SE-1.5, 配置一下Build Path,使用本地機器上安裝的JDKapi
(本文中使用的是JDK 1.7),工程默認字體是GBK,將其改爲UTF-8
完成後,Maven工程的結構以下圖所示:
在本示例中,由於簡單,因此只要引入以下幾個jar包就行了~
<dependencies> <!--引入Spring依賴包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.framework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.framework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.framework.version}</version> </dependency> </dependencies>
完整的pom.xml文件內容以下:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.xxx.tutorial</groupId> <artifactId>springfox-swagger-demo</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>springfox-swagger-demo Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.framework.version>4.3.6.RELEASE</spring.framework.version> </properties> <dependencies> <!--引入Spring依賴包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.framework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.framework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.framework.version}</version> </dependency> </dependencies> <build> <finalName>springfox-swagger-demo</finalName> </build> </project>
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 默認的註解映射的支持 ,它會自動註冊DefaultAnnotationHandlerMapping 與AnnotationMethodHandlerAdapter --> <mvc:annotation-driven /> <!-- 設置使用註解的類所在的jar包 --> <context:component-scan base-package="com.htjf.controller" /> <!--這個是個人項目包結構--> </beans>
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd"> <!-- 啓用註解掃描,並定義組件查找規則 ,除了@controller,掃描全部的Bean --> <context:component-scan base-package="com.htjf"/> <!-- 啓動SpringMVC的註解功能,完成請求和註解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> <!-- enable autowire 向容器自動註冊 --> <context:annotation-config /> </beans>
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> <display-name>Archetype Created Web Application</display-name> <!-- 利用Spring提供的ContextLoaderListener監聽器去監聽ServletContext對象的建立,並初始化WebApplicationContext對象 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- Context Configuration locations for Spring XML files(默認查找/WEB-INF/applicationContext.xml) --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 配置Spring MVC的前端控制器:DispatchcerServlet --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--字符編碼過濾器--> <filter> <filter-name>encoding</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
配置好spring-mvc.xml、applicationContext.xml以及web.xml文件以後,我們繼續往下走~
由於,本文Spring MVC示例的做用主要用來暴露對外HTTP API接口,先寫一個簡單的ProductController,其包含一個按照id查詢的方法。
Product.java和ProductController.java的內容以下:
Product.java
package com.xxx.tutorial.model; import java.io.Serializable; /** * * @author wangmengjun * */ public class Product implements Serializable { private static final long serialVersionUID = 1L; /**ID*/ private Long id; /**產品名稱*/ private String name; /**產品型號*/ private String productClass; /**產品ID*/ private String productId; /** * @return the id */ public Long getId() { return id; } /** * @param id * the id to set */ public void setId(Long id) { this.id = id; } /** * @return the name */ public String getName() { return name; } /** * @param name * the name to set */ public void setName(String name) { this.name = name; } /** * @return the productClass */ public String getProductClass() { return productClass; } /** * @param productClass * the productClass to set */ public void setProductClass(String productClass) { this.productClass = productClass; } /** * @return the productId */ public String getProductId() { return productId; } /** * @param productId * the productId to set */ public void setProductId(String productId) { this.productId = productId; } /* * (non-Javadoc) * * @see java.lang.Object#toString() */ @Override public String toString() { return "Product [id=" + id + ", name=" + name + ", productClass=" + productClass + ", productId=" + productId + "]"; } }
ProductController.java
package com.xxx.tutorial.controller; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import com.xxx.tutorial.model.Product; @RestController @RequestMapping(value = { "/api/product/"}) public class ProductController { @RequestMapping(value = "/{id}", method = RequestMethod.GET) public ResponseEntity<Product> get(@PathVariable Long id) { Product product = new Product(); product.setName("七級濾芯淨水器"); product.setId(1L); product.setProductClass("seven_filters"); product.setProductId("T12345"); return ResponseEntity.ok(product); } }
注:
鑑因而一個demo示例,因此沒有寫ProductService以及相關DAO, 直接在方法中返回固定的Product信息~
完成Controller的代碼,運行Spring MVC項目,而後,看一下Spring MVC是否運行ok,訪問URL地址
http://localhost:8888/springfox-swagger-demo/api/product/1
詳細的錯誤信息以下:
五月 23, 2017 3:00:55 下午 org.apache.catalina.core.StandardWrapperValve invoke 嚴重: Servlet.service() for servlet [spring-mvc] in context with path [/springfox-swagger-demo] threw exception [Request processing failed; nested exception is java.lang.IllegalArgumentException: No converter found for return value of type: class com.xxx.tutorial.model.Product] with root cause java.lang.IllegalArgumentException: No converter found for return value of type: class com.xxx.tutorial.model.Product at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:187) at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:203) at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) at javax.servlet.http.HttpServlet.service(HttpServlet.java:624) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source)
解決方法,添加jackson-databind依賴包便可~
<dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.6.6</version> </dependency>
從新啓動,運行一下,成功返回信息~
爲了看的更加清楚,可使用postman來完成~, 如~
至此,一個簡單的基於SpringMVC的Web項目已經建立,並能對外提供API接口~
接下來,咱們要整合SpringFox和SwaggerUI到該SpringMVC項目中去,使其對外接口文檔化
SpringFox【SpringFox連接】已經能夠代替Swagger-SpringMVC, 目前SpringFox同時支持Swagger 1.2 和 2.0.
在SpringMVC項目中整合SpringFox-Swagger只要以下幾步便可~
<dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>2.7.0</version> </dependency>
package com.htjf.config; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.EnableWebMvc; import springfox.documentation.builders.ApiInfoBuilder; import springfox.documentation.builders.RequestHandlerSelectors; import springfox.documentation.service.ApiInfo; import springfox.documentation.spi.DocumentationType; import springfox.documentation.spring.web.plugins.Docket; import springfox.documentation.swagger2.annotations.EnableSwagger2; @Configuration @EnableSwagger2 @ComponentScan(basePackages= {"com.htjf.controller"}) @EnableWebMvc public class SwaggerConfig { @Bean public Docket api() { return new Docket(DocumentationType.SWAGGER_2) .select() .apis(RequestHandlerSelectors.any()) .build() .apiInfo(apiInfo()); } private ApiInfo apiInfo() { return new ApiInfoBuilder() .title("對外開放接口API 文檔") //大標題 title .description("HTTP對外開放接口") //小標題 .version("1.0.0") //版本 .termsOfServiceUrl("http://xxx.xxx.com") //終端服務程序 .license("LICENSE") //連接顯示文字 .licenseUrl("http://xxx.xxx.com") //網站連接 .build(); } }
在SpringMVC項目中整合SpringFox-Swagger-UI也只要以下兩個步驟便可~
<dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>2.7.0</version> </dependency>
在添加配置以前,一塊兒來看一下swagger-ui中使用的靜態資源文件(如 swagger-ui.html )放在那裏~
spingfox-swagger-ui-2.7.0.jar中的/META-INF/resources/下~ 以下圖所示:
爲了訪問swagger-ui.html,咱們配置對這些靜態資源的訪問~ 如:
package com.xxx.tutorial.config; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.EnableWebMvc; import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; @Configuration @EnableWebMvc public class WebAppConfig extends WebMvcConfigurerAdapter { @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { registry.addResourceHandler("swagger-ui.html").addResourceLocations("classpath:/META-INF/resources/"); registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/"); } }
該配置代碼的效果和以下代碼等價~
<mvc:resources mapping="swagger-ui.html" location="classpath:/META-INF/resources/" /> <mvc:resources mapping="/webjars/**" location="classpath:/META-INF/resources/webjars/" />
在本文中,能夠將其配置在spring-mvc.xml中,
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 默認的註解映射的支持 ,它會自動註冊DefaultAnnotationHandlerMapping 與AnnotationMethodHandlerAdapter --> <mvc:annotation-driven /> <!-- 設置使用註解的類所在的jar包 --> <context:component-scan base-package="com.htjf.controller" /> <mvc:resources location="classpath:/META-INF/resources/" mapping="swagger-ui.html"/> <mvc:resources location="classpath:/META-INF/resources/webjars/" mapping="/webjars/**"/> </beans>
通過上述幾個步驟以後,以前寫的ProductController的接口,就能夠實現文檔化了,如本文經過以下的訪問地址訪問:
http://localhost:8888/springfox-swagger-demo/swagger-ui.html
這個接口API雛形出來了,可是還缺乏點東西,好比:接口方法的描述等都沒有~
修改一下,ProductController.java內容,如:
package com.xxx.tutorial.controller; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import com.xxx.tutorial.model.Product; import io.swagger.annotations.Api; import io.swagger.annotations.ApiOperation; @RestController @RequestMapping(value = { "/api/product/" }) @Api(value = "/product", tags = "Product接口") public class ProductController { @RequestMapping(value = "/{id}", method = RequestMethod.GET) @ApiOperation(value = "根據id獲取產品信息", notes = "根據id獲取產品信息", httpMethod = "GET", response = Product.class) public ResponseEntity<Product> get(@PathVariable Long id) { Product product = new Product(); product.setName("七級濾芯淨水器"); product.setId(1L); product.setProductClass("seven_filters"); product.setProductId("T12345"); return ResponseEntity.ok(product); } }
從新訪問,接口已經出現多個咱們指定的描述信息~
在參數id欄中輸入1,而後點擊「try it out」按鈕~ 能夠查看接口調用結果~
至此一個簡單的示例就完成了~
package com.xxx.tutorial.controller; import java.util.Arrays; import java.util.List; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import com.xxx.tutorial.model.Product; import io.swagger.annotations.Api; import io.swagger.annotations.ApiOperation; import io.swagger.annotations.ApiResponse; import io.swagger.annotations.ApiResponses; @RestController @RequestMapping(value = { "/api/product/" }) @Api(value = "/product", tags = "Product接口") public class ProductController { @RequestMapping(value = "/{id}", method = RequestMethod.GET) @ApiResponses(value= { @ApiResponse(code = 400,message="參數錯誤"), @ApiResponse(code = 401,message="要求用戶的身份認證"), @ApiResponse(code = 403,message="拒絕執行此請求"), @ApiResponse(code = 404,message="系統資源未發現"), @ApiResponse(code = 500,message="系統錯誤"), @ApiResponse(code = 200,message="成功,其它爲錯誤,返回格式:{code:0,data[{}]},data中的屬性參照下方Model",response=Product.class)}) @ApiOperation(value = "根據id獲取產品信息", notes = "根據id獲取產品信息", httpMethod = "GET") public ResponseEntity<Product> get(@PathVariable Long id) { Product product = new Product(); product.setName("七級濾芯淨水器"); product.setId(1L); product.setProductClass("seven_filters"); product.setProductId("T12345"); return ResponseEntity.ok(product); } @RequestMapping(method = RequestMethod.POST) @ApiOperation(value = "添加一個新的產品") @ApiResponses(value = { @ApiResponse(code = 201,message="已建立。成功請求並建立了新的資源"), @ApiResponse(code = 401,message="要求用戶的身份認證"), @ApiResponse(code = 403,message="拒絕執行此請求"), @ApiResponse(code = 404,message="系統資源未發現"), @ApiResponse(code = 405, message = "參數錯誤"), @ApiResponse(code = 200,message="成功,其它爲錯誤,返回格式:{code:0,data[{}]},data中的屬性參照下方Model",response=String.class)}) public ResponseEntity<String> add(Product product) { return ResponseEntity.ok("SUCCESS"); } @RequestMapping(method = RequestMethod.PUT) @ApiOperation(value = "更新一個產品") @ApiResponses(value = { @ApiResponse(code = 200,message="成功,其它爲錯誤,返回格式:{code:0,data[{}]},data中的屬性參照下方Model",response=String.class), @ApiResponse(code = 201,message="已建立。成功請求並建立了新的資源"), @ApiResponse(code = 400, message = "參數錯誤"), @ApiResponse(code = 401,message="要求用戶的身份認證"), @ApiResponse(code = 403,message="拒絕執行此請求"), @ApiResponse(code = 404,message="系統資源未發現")}) public ResponseEntity<String> update(Product product) { return ResponseEntity.ok("SUCCESS"); } @RequestMapping(method = RequestMethod.GET) @ApiOperation(value = "獲取全部產品信息", notes = "獲取全部產品信息", httpMethod = "GET", response = Product.class, responseContainer = "List") public ResponseEntity<List<Product>> getAllProducts() { Product product = new Product(); product.setName("七級濾芯淨水器"); product.setId(1L); product.setProductClass("seven_filters"); product.setProductId("T12345"); return ResponseEntity.ok(Arrays.asList(product, product)); } } @RequestMapping(method=RequestMethod.DELETE) @ApiOperation(value="刪除某個產品信息",notes="刪除某個產品信息") /* @ApiImplicitParams(@ApiImplicitParam(name="carOwnerName",value="產品id",dataType="Long"))*/ @ApiResponses(value= { @ApiResponse(code = 204,message="無內容。服務器成功處理,但未返回內容!"), @ApiResponse(code = 400,message="參數錯誤"), @ApiResponse(code = 401,message="要求用戶的身份認證"), @ApiResponse(code = 403,message="拒絕執行此請求"), @ApiResponse(code = 500,message="系統錯誤"), @ApiResponse(code = 200,message="成功,其它爲錯誤,返回格式:{code:0,data[{}]},data中的屬性參照下方Model",response=String.class)}) public ResponseEntity<String> delete(@PathVariable Long id){ if(carOwnerName==null) { return new ResponseEntity<String>(HttpStatus.NO_CONTENT); }else { return ResponseEntity.ok("SUCCESS"); } }
由上圖能夠看出,不一樣的method(GET / PUT / POST等)都會以不一樣的顏色展現出來~
Swagger-ui的添加,能夠幫助他人查看接口信息,並在頁面上進行輸入參數來調用接口~
Maven工程的目錄以下:
本文只是一個簡單的整合示例,你們只要操做一下就能出來結果。
接下來說解Swagger 經常使用註解使用
--@Api()用於類;
表示這個類是一個swagger的資源。它有兩個屬性,分別是:
String value();---也是說明,可使用tags替代
String[] tags();---是一個數組,表示說明,tags若是有多個值,會生成多個list;
例如:
@Api(value="用戶controller",tags={"用戶操做接口"}) @RestController public class UserController { }
ui效果圖:
--@ApiOperation()用於方法;
表示一個http請求的操做 ,它有4個經常使用屬性:
String value();--用於方法描述;
String notes();--用於提示內容
String[] tags();--能夠從新分組(視狀況而用)
String httpMethod(); --請求方法類型,例如:httpMethod=「GET」;
--@ApiParam() 用於方法,參數,字段說明;表示對參數的添加元數據(說明或是否必填等) ,它有幾個經常使用參數:
String name();--參數名
String value();--參數說明
boolean required();--是否必填
boolean allowEmptyValue();--是否容許有空值
例如:
@Api(value="用戶controller",tags={"用戶操做接口"}) @RestController public class UserController { @ApiOperation(value="獲取用戶信息",tags={"獲取用戶信息copy"},notes="注意問題點") @GetMapping("/getUserInfo") public User getUserInfo(@ApiParam(name="id",value="用戶id",required=true) Long id,@ApiParam(name="username",value="用戶名") String username) { // userService可忽略,是業務邏輯 User user = userService.getUserInfo(); return user; } }
ui效果圖:
--@ApiModel()用於類 ;表示對類進行說明,用於參數用實體類接收
value–表示對象名
description–描述
均可省略
--@ApiModelProperty()用於方法,字段; 表示對model屬性的說明或者數據操做更改
value–字段說明
name–重寫屬性名字
dataType–重寫屬性類型
required–是否必填
example–舉例說明
hidden–隱藏
例如:
@ApiModel(value="user對象",description="用戶對象user") public class User implements Serializable{ private static final long serialVersionUID = 1L; @ApiModelProperty(value="用戶名",name="username",example="xingguo") private String username; @ApiModelProperty(value="狀態",name="state",required=true) private Integer state; private String password; private String nickName; private Integer isDeleted; @ApiModelProperty(value="id數組",hidden=true) private String[] ids; private List<String> idList; //省略get/set }
@ApiOperation("更改用戶信息") @PostMapping("/updateUserInfo") public int updateUserInfo(@RequestBody @ApiParam(name="用戶對象",value="傳入json格式",required=true) User user){ //注意,必定要添加@RequestBody註解 int num = userService.updateUserInfo(user); return num; }
ui效果圖:
--@ApiIgnore()用於類或者方法上,能夠不被swagger顯示在頁面上
比較簡單, 這裏不作舉例
--@ApiImplicitParam() 用於方法
表示單獨的請求參數
@ApiImplicitParams() 用於方法,包含多個 @ApiImplicitParam
name–參數ming
value–參數說明
dataType–數據類型
paramType–參數類型
example–舉例說明
*****在controller層使用@RequestParam的時候,發現這個參數是必需要輸入值的,可是咱們有時候必須查詢的時候容許參數爲空,使用這個註解就不行了。可是使用@ApiImplicitParam這個註解能夠解決這個問題。
例如:
@ApiOperation("查詢測試") @GetMapping("select") //@ApiImplicitParam(name="name",value="用戶名",dataType="String", paramType = "query") @ApiImplicitParams({ @ApiImplicitParam(name="name",value="用戶名",dataType="string", paramType = "query",example="xingguo"), @ApiImplicitParam(name="id",value="用戶id",dataType="long", paramType = "query")}) public void select(){ }
ui效果圖:
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