springboot项目整合Swagger-UI实现在线API文档
本文主要讲解是如何通过整合Swagger-UI来实现一份相当完善的在线API文档的。
项目使用框架介绍
Swagger-UI
Swagger-UI是HTML, Javascript, CSS的一个集合，可以动态地根据注解生成在线API文档。
常用注解
@Api：用于修饰Controller类，生成Controller相关文档信息
@ApiOperation：用于修饰Controller类中的方法，生成接口方法相关文档信息
@ApiParam：用于修饰接口中的参数，生成接口参数相关文档信息
@ApiModelProperty：用于修饰实体类的属性，当实体类是请求参数或返回结果时，直接生成相关文档信息
整合Swagger-UI
添加项目依赖
在pom.xml中新增Swagger-UI相关依赖
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.7.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.7.0</version>
</dependency>
添加Swagger-UI的配置
添加Swagger-UI的Java配置文件
注意：Swagger对生成API文档的范围有三种不同的选择
生成指定包下面的类的API文档
生成有指定注解的类的API文档
生成有指定注解的方法的API文档
package com.macro.mall.tiny.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
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;
/**
* Swagger2API文档的配置
*/
@Configuration
@EnableSwagger2
public class Swagger2Config {
@Bean
public Docket createRestApi(){
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo())
.select()
//为当前包下controller生成API文档
.apis(RequestHandlerSelectors.basePackage("com.macro.mall.tiny.controller"))
//为有@Api注解的Controller生成API文档
// .apis(RequestHandlerSelectors.withClassAnnotation(Api.class))
//为有@ApiOperation注解的方法生成API文档
// .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
.paths(PathSelectors.any())
.build();
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("SwaggerUI演示")
.description("mall-tiny")
.contact("macro")
.version("1.0")
.build();
}
}
给PmsBrandController添加Swagger注解
给原有的品牌管理Controller添加上Swagger注解
package com.macro.mall.tiny.controller;
import com.macro.mall.tiny.common.api.CommonPage;
import com.macro.mall.tiny.common.api.CommonResult;
import com.macro.mall.tiny.mbg.model.PmsBrand;
import com.macro.mall.tiny.service.PmsBrandService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.*;
import java.util.List;
@Api(tags = “PmsBrandController”, description = “商品品牌管理”)
@Controller
@RequestMapping("/brand")
public class PmsBrandController {
@Autowired
private PmsBrandService brandService;
private static final Logger LOGGER = LoggerFactory.getLogger(PmsBrandController.class);
@ApiOperation("获取所有品牌列表")
@RequestMapping(value = "listAll", method = RequestMethod.GET)
@ResponseBody
public CommonResult<List<PmsBrand>> getBrandList() {
return CommonResult.success(brandService.listAllBrand());
}
@ApiOperation("添加品牌")
@RequestMapping(value = "/create", method = RequestMethod.POST)
@ResponseBody
public CommonResult createBrand(@RequestBody PmsBrand pmsBrand) {
CommonResult commonResult;
int count = brandService.createBrand(pmsBrand);
if (count == 1) {
commonResult = CommonResult.success(pmsBrand);
LOGGER.debug("createBrand success:{}", pmsBrand);
} else {
commonResult = CommonResult.failed("操作失败");
LOGGER.debug("createBrand failed:{}", pmsBrand);
}
return commonResult;
}
@ApiOperation("更新指定id品牌信息")
@RequestMapping(value = "/update/{id}", method = RequestMethod.POST)
@ResponseBody
public CommonResult updateBrand(@PathVariable("id") Long id, @RequestBody PmsBrand pmsBrandDto, BindingResult result) {
CommonResult commonResult;
int count = brandService.updateBrand(id, pmsBrandDto);
if (count == 1) {
commonResult = CommonResult.success(pmsBrandDto);
LOGGER.debug("updateBrand success:{}", pmsBrandDto);
} else {
commonResult = CommonResult.failed("操作失败");
LOGGER.debug("updateBrand failed:{}", pmsBrandDto);
}
return commonResult;
}
@ApiOperation("删除指定id的品牌")
@RequestMapping(value = "/delete/{id}", method = RequestMethod.GET)
@ResponseBody
public CommonResult deleteBrand(@PathVariable("id") Long id) {
int count = brandService.deleteBrand(id);
if (count == 1) {
LOGGER.debug("deleteBrand success :id={}", id);
return CommonResult.success(null);
} else {
LOGGER.debug("deleteBrand failed :id={}", id);
return CommonResult.failed("操作失败");
}
}
@ApiOperation("分页查询品牌列表")
@RequestMapping(value = "/list", method = RequestMethod.GET)
@ResponseBody
public CommonResult<CommonPage<PmsBrand>> listBrand(@RequestParam(value = "pageNum", defaultValue = "1")
@ApiParam("页码") Integer pageNum,
@RequestParam(value = "pageSize", defaultValue = "3")
@ApiParam("每页数量") Integer pageSize) {
List<PmsBrand> brandList = brandService.listBrand(pageNum, pageSize);
return CommonResult.success(CommonPage.restPage(brandList));
}
@ApiOperation("获取指定id的品牌详情")
@RequestMapping(value = "/{id}", method = RequestMethod.GET)
@ResponseBody
public CommonResult<PmsBrand> brand(@PathVariable("id") Long id) {
return CommonResult.success(brandService.getBrand(id));
}
}
修改MyBatis Generator注释的生成规则
CommentGenerator为MyBatis Generator的自定义注释生成器，修改addFieldComment方法使其生成Swagger的@ApiModelProperty注解来取代原来的方法注释，添加addJavaFileComment方法，使其能在import中导入@ApiModelProperty，否则需要手动导入该类，在需要生成大量实体类时，是一件非常麻烦的事。
package com.macro.mall.tiny.mbg;
import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.IntrospectedTable;
import org.mybatis.generator.api.dom.java.CompilationUnit;
import org.mybatis.generator.api.dom.java.Field;
import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
import org.mybatis.generator.internal.DefaultCommentGenerator;
import org.mybatis.generator.internal.util.StringUtility;
import java.util.Properties;
/**
* 自定义注释生成器
* Created by macro on 2018/4/26.
*/
public class CommentGenerator extends DefaultCommentGenerator {
private boolean addRemarkComments = false;
private static final String EXAMPLE_SUFFIX="Example";
private static final String API_MODEL_PROPERTY_FULL_CLASS_NAME="io.swagger.annotations.ApiModelProperty";
/**
* 设置用户配置的参数
*/
@Override
public void addConfigurationProperties(Properties properties) {
super.addConfigurationProperties(properties);
this.addRemarkComments = StringUtility.isTrue(properties.getProperty("addRemarkComments"));
}
/**
* 给字段添加注释
*/
@Override
public void addFieldComment(Field field, IntrospectedTable introspectedTable,
IntrospectedColumn introspectedColumn) {
String remarks = introspectedColumn.getRemarks();
//根据参数和备注信息判断是否添加备注信息
if(addRemarkComments&&StringUtility.stringHasValue(remarks)){
// addFieldJavaDoc(field, remarks);
//数据库中特殊字符需要转义
if(remarks.contains("\"")){
remarks = remarks.replace("\"","'");
}
//给model的字段添加swagger注解
field.addJavaDocLine("@ApiModelProperty(value = \""+remarks+"\")");
}
}
/**
* 给model的字段添加注释
*/
private void addFieldJavaDoc(Field field, String remarks) {
//文档注释开始
field.addJavaDocLine("/**");
//获取数据库字段的备注信息
String[] remarkLines = remarks.split(System.getProperty("line.separator"));
for(String remarkLine:remarkLines){
field.addJavaDocLine(" * "+remarkLine);
}
addJavadocTag(field, false);
field.addJavaDocLine(" */");
}
@Override
public void addJavaFileComment(CompilationUnit compilationUnit) {
super.addJavaFileComment(compilationUnit);
//只在model中添加swagger注解类的导入
if(!compilationUnit.isJavaInterface()&&!compilationUnit.getType().getFullyQualifiedName().contains(EXAMPLE_SUFFIX)){
compilationUnit.addImportedType(new FullyQualifiedJavaType(API_MODEL_PROPERTY_FULL_CLASS_NAME));
}
}
}
运行代码生成器重新生成mbg包中的代码
运行com.macro.mall.tiny.mbg.Generator的main方法，重新生成mbg中的代码，可以看到PmsBrand类中已经自动根据数据库注释添加了@ApiModelProperty注解
运行项目，查看结果
访问Swagger-UI接口文档地址
接口地址：http://localhost:8080/swagger-ui.html
对请求参数已经添加说明
对返回结果已
经添加说明
直接在在线文档上面进行接口测试
