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# 编写文档
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作为开放平台,必须要提供API文档。
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SOP采用微服务架构实现,因此文档应该由各个微服务各自实现。难点就是如何统一归纳各个微服务端提供的文档信息,并且统一展示。
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写完接口后使用swagger注解来定义自己的文档信息。步骤如下:
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- maven添加swagger
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```xml
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<dependency>
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<groupId>io.springfox</groupId>
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<artifactId>springfox-swagger2</artifactId>
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<version>2.9.2</version>
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<exclusions>
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<exclusion>
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<groupId>io.swagger</groupId>
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<artifactId>swagger-models</artifactId>
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>io.swagger</groupId>
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<artifactId>swagger-models</artifactId>
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<version>1.5.21</version>
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</dependency>
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<dependency>
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<groupId>io.springfox</groupId>
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<artifactId>springfox-swagger-ui</artifactId>
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<version>2.9.2</version>
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</dependency>
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```
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- 在config中添加swagger配置
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```java
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@Configuration
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public class OpenServiceConfig extends AlipayServiceConfiguration {
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// 开启文档
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@Configuration
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@EnableSwagger2
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public static class Swagger2 extends SwaggerSupport {
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@Override
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protected String getDocTitle() {
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// 不能重复。比如订单服务返回:`订单API`;库存服务返回:`库存API`
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return "图书API";
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}
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}
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}
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```
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其中`getDocTitle()`返回文档模块名,不能和其它微服务重复。比如订单服务返回:`订单API`;库存服务返回:`库存API`
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- 编写swagger注解
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分别在请求参数和返回结果类中编写`@ApiModelProperty`
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```java
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// 请求参数
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@Data
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public class BookParam {
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@ApiModelProperty(value = "图书id", example = "1")
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private int id;
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@ApiModelProperty(value = "图书ISBN", example = "xxxx")
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private String isbn;
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}
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// 返回结果
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@Data
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public class BookVO {
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@ApiModelProperty(value = "图书id", example = "1")
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private int id;
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@ApiModelProperty(value = "图书名称", example = "白雪公主")
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private String name;
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@ApiModelProperty(value = "isbn", example = "xxxxxx")
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private String isbn;
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}
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```
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- 在接口方法上编写`@ApiOperation`注解
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```java
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@ApiOperation(value="查询书本信息", notes = "可以根据ISBN查询书本信息")
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@ApiMapping(value = "book.search")
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public BookVO searchBook(BookParam param) {
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BookVO bookVO = new BookVO();
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bookVO.setId(1);
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bookVO.setName("白雪公主,ISBN:" + param.getIsbn());
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bookVO.setIsbn("ABCSSSSDDD");
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return bookVO;
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}
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```
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其中`value`属性填接口名称,简明扼要。`notes`填写接口的详细信息,介绍,用途,注意事项等。
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## 查看文档
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- 启动website-server(运行WebsiteServerApplication.java)
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- 找到sop-website/website-front/pages/doc/doc.html,IDEA下右键--Debug
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如果没有IDEA可以下个webstorm,同样有本地静态服务器功能。
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效果图如下
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![预览](images/10041_1.png "10041_1.png")
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## 注解对应关系
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swagger注解和文档界面显示关系如下图所示:
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![预览](images/10041_2.png "10041_2.png")
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![预览](images/10041_3.png "10041_3.png")
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