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Spring Boot-Swagger文檔不起作用

發布時間：2024-03-09 00:32:02 作者：網友整理

本文介紹了Spring Boot-Swagger文檔不起作用的處理方法，對大家解決問題具有一定的參考價值，需要的朋友們下面隨著小編來一起學習吧！

問題描述

我有一個使用Spring Boot構建的rest API項目，我想記錄我的所有端點。我已經實現了Swagger，并且成功了，但最近我的項目不再運行，配置與創建項目和Swagger工作時相同。

嘗試運行項目時出現此錯誤：

WARN 17868 --- [  restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException
....
ERROR 17868 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed

org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException

我做錯了什么？

這是我的項目配置：

Main

package com.red.api;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling
@PropertySource(value = "classpath:application.properties")
@PropertySource(value = "classpath:propiedades.properties")
public class BackRedApplication {

    public static void main(String[] args) {
    SpringApplication.run(BackRedApplication.class, args);
}

    @Bean
    public static PropertySourcesPlaceholderConfigurer placeHolderConfigurer() {
       return new PropertySourcesPlaceholderConfigurer();
    }
}

Pom.xml

...
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.6.0-SNAPSHOT</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.red.api</groupId>
<artifactId>RED</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>RED</name>
<description>RED</description>
<properties>
    <java.version>11</java.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-ldap</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jersey</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-quartz</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-boot-starter</artifactId>
        <version>3.0.0</version>
    </dependency>
    <dependency>
        <groupId>io.springfox</groupId>
        <artifactId>springfox-swagger-ui</artifactId>
        <version>3.0.0</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>org.json</groupId>
        <artifactId>json</artifactId>
        <version>20200518</version>
    </dependency>
    <dependency>
        <groupId>net.sf.jasperreports</groupId>
        <artifactId>jasperreports</artifactId>
        <version>6.8.0</version>
    </dependency>
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>io</artifactId>
        <version>7.1.9</version>
    </dependency>
    
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>kernel</artifactId>
        <version>7.1.9</version>
    </dependency>
    
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>layout</artifactId>
        <version>7.1.9</version>
    </dependency>
</dependencies>
...

配置類

package com.red.api.configuracion;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

import com.fasterxml.jackson.databind.ObjectMapper;

import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;


@Configuration
@EnableSwagger2
public class Configuracion {

    @Bean
    public RestTemplate rest() {
        return new RestTemplate();
    }

    @Bean
    public ObjectMapper objectMapper() {
        return new ObjectMapper();
    }

    @Bean
    public Docket redApi() {
        return new Docket(DocumentationType.SWAGGER_2).select()
                .apis(RequestHandlerSelectors.basePackage("com.co.dejsoftware.red.ws"))
                .paths(PathSelectors.any()).build();
    }

}

控制器

package com.red.api.ws;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.red.api.interfaces.InterfaceSeguridad;

@RestController
@CrossOrigin
@RequestMapping("/seguridad")
public class WsSeguridad {

    private Logger logger = LogManager.getLogger(WsSeguridad.class);

    @Autowired
    private InterfaceSeguridad servicioSeguridad;

    @PostMapping(path="/getToken", produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Object> getToken(@RequestHeader(name = "user") String usuario, 
            @RequestHeader(name = "pwd") String contrasena) {
    
        try {
        
            return ResponseEntity.ok(servicioSeguridad.getToken(usuario, contrasena));
        
        } catch (Exception e) {
            logger.error(e);
        
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
        }
    }
}

界面

package com.red.api.interfaces;

import org.springframework.http.ResponseEntity;

public interface InterfaceSeguridad {

    public ResponseEntity<Object> getToken(String usuario, String contrasena);
}

實施

package com.red.api.implementacion;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.json.JSONObject;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;

import com.red.api.interfaces.InterfaceSeguridad;

@Service
public class ServicioSeguridad implements InterfaceSeguridad {

    private Logger logger = LogManager.getLogger(ServicioSeguridad.class);

    public ResponseEntity<Object> getToken(String usuario, String contrasena) {
        try {
            System.out.println("usuario... " + usuario);
            System.out.println("contrasena... " + contrasena);
        
            JSONObject item = new JSONObject();
            item.put("description", "Success...");
            item.put("usuario", usuario);
            item.put("contrasena", contrasena);
            String jsonResponse = new JSONObject().put("exito", item).toString();
        
            return ResponseEntity.ok(jsonResponse);
        }catch (Exception e) {
            logger.error(e);
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
        }
    }
}

推薦答案

我知道這不能直接解決您的問題，但請考慮移至springdoc。在這一點上，Springfox的漏洞太多了，使用起來很痛苦。我在2年前搬到了springdoc，因為它支持Spring WebFlux，我對此感到非常高興。此外，它還支持Kotlin Coroutines，我不確定Springfox是否支持。

如果您決定遷移，springdoc甚至有一個migration guide。

這篇關于Spring Boot-Swagger文檔不起作用的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，

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