spring boot 使用swagger

在pom.xml中添加maven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>

刚开始我用的2.8.0版本，后来折腾了好久，swagger页面就是不出来。换成2.7.0就好了。也许你折腾半天，换个版本就好了。

添加Swagger配置类：

package com.test.configuration;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import io.swagger.annotations.ApiOperation;
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;

/**
*Swagger2配置类
*/

@Configuration
@EnableSwagger2//启用Swagger2
public class Swaggers {

    @Bean
    public Docket createRestApi(){
        return new Docket(DocumentationType.SWAGGER_2)
        .apiInfo(apiInfo())
        .select()
        .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))//扫描所有有注解的api
        .paths(PathSelectors.any())
        .build();
    }

    /**
     * 首页描述
     * @return
    */
    private ApiInfo apiInfo(){
        return new ApiInfoBuilder()
        .title("电话外呼api文档")
        .description("rest接口")
        .build();
    }
}

添加controller类

package com.text.crm.callout.controller;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.beans.factory.annotation.Autowired;
import com.text.callout.model.WarnCallOut;
import com.text.callout.service.WarnCallOutService;

@RestController
@RequestMapping("/warn")
@Api(tags="电话外呼信息保存接口")
public class WarnCallOutController{

    @Autowired
    private WarnCallOutService warnCallOutService;

    /**
    *@param WarnCallOut电话外呼对象
    *@return
    */
    @ApiOperation("保存电话外呼信息")
    @RequestMapping(value = "/add",method=RequestMethod.POST)
    public String addWarnCallOut(WarnCallOut warnCallOut){
        return warnCallOutService.addWarnCallOut(warnCallOut);
    }
}

添加POJO类

package com.test.entity;

import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;

@ApiModel("电话外呼对象")
public class WarnCallOut {
    @ApiModelProperty(value="序号，从1开始",hidden=true)
    private Long id;
    @ApiModelProperty(value="姓名",required=true)
    private String name;
    @ApiModelProperty(value="需要外乎的号码，本地号码加9，外地号码加90，多个号码用|隔开,如913800000000|9013900000000",required=true)
    private String phonenum;
    @ApiModelProperty(value="操作时间,如2018-12-06 22:00:00",required=true)
    private String requesttime;

    public Long getId() {
        return id;
    }
    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPhonenum() {
        return phonenum;
    }
    public void setPhonenum(String phonenum) {
        this.phonenum = phonenum;
    }
    public String getRequesttime() {
        return requesttime;
    }
    public void setRequesttime(String requesttime) {
        this.requesttime = requesttime;
    }
}

运行启动类，启动Spring Boot程序，访问：http://localhost:8080/swagger-ui.html

如果你的没有成功。可以试试把配置类改成如下：

package com.test.configuration;

import io.swagger.annotations.ApiOperation;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.util.UriComponentsBuilder;

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.spring.web.paths.Paths;
import springfox.documentation.spring.web.paths.AbstractPathProvider;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.List;
import org.springframework.web.servlet.config.annotation.*;
import org.springframework.format.FormatterRegistry;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.validation.MessageCodesResolver;
import org.springframework.validation.Validator;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.context.request.async.DeferredResult;

/**
*Swagger2配置类
*/

@Configuration
@EnableSwagger2//启用Swagger2，生产环境记得注释掉
public class Swaggers implements WebMvcConfigurer{

    @Bean
    public Docket createRestApi(){
        return new Docket(DocumentationType.SWAGGER_2)
        .apiInfo(apiInfo())
        .select()
        .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))//扫描所有有注解的api
        .paths(PathSelectors.any())
        .build();
    }

    /**
     * 首页描述
     * @return
    */
    private ApiInfo apiInfo(){
        return new ApiInfoBuilder()
        .title("电话外呼api文档")
        .description("rest接口")
        .build();
    }

    /**
     *重写BASE URL
    */
    class BasePathAwareRalativePathProvider extends AbstractPathProvider{
        private String basePath;

        public BasePathAwareRalativePathProvider(String basePath){
            this.basePath=basePath;
        }

        @Override
        protected String applicationPath(){
            return basePath;
        }

        @Override
        protected String getDocumentationPath(){
            return "/";
        }

        @Override
        public String getOperationPath(String OperationPath){
            UriComponentsBuilder uriComponentsBuilder=UriComponentsBuilder.fromPath("/");
            return Paths.removeAdjacentForwardSlashes(uriComponentsBuilder.path("").build().toString());
        }
    }

    @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/");
    };

    /**
     * 跨域支持
     * @param corsRegistry
    */
    @Override
    public void addCorsMappings(CorsRegistry corsRegistry){
                corsRegistry.addMapping("/**")
                .allowedOrigins("*")
                .allowCredentials(true)
                .allowedMethods("GET","POST","PUT","DELETE")
                .allowedHeaders("*");
    }

    @Override
    public void configurePathMatch(PathMatchConfigurer pathMatchConfigurer){}
    @Override
    public void configureContentNegotiation(ContentNegotiationConfigurer contentNegotiationConfigurer){}
    @Override
    public void configureAsyncSupport(AsyncSupportConfigurer asyncSupportConfigurer){};
    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer defaultServletHandlerConfigurer){};
    @Override
    public void addFormatters(FormatterRegistry formatterRegistry){};
    @Override
    public void addInterceptors(InterceptorRegistry interceptorRegistry){};
    @Override
    public void addViewControllers(ViewControllerRegistry viewControllerRegistry){};
    @Override
    public void configureViewResolvers(ViewResolverRegistry viewResolverRegistry){};
    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers){};
    @Override
    public void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers){};
    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters){};
    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters){};
    @Override
    public void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers){};
    @Override
    public void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers){};
    @Override
    public Validator getValidator(){
        return null;
    }
    @Override
    public MessageCodesResolver getMessageCodesResolver(){
        return null;
    }
}

还是不行的话，

请下载这个demo : springboot-swagger2-demo        下载好解压然后eclipse导入MAVEN项目  直接就能运行。

spring boot 启动jar包时可指定Xmx(jvm运行过程中分配的最大内存),Xms(jvm启动时分配的内存) :

java -jar -Xmx 2048m -Xms 2048m 项目名.jar

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