将自定义假装客户端注入Spring Application

我目前正试图 grab Spring和Feign . 直截了当：我正在努力修改这个项目中的@FeignClient：Feign Hello World by Walery以便代替

WikidataClient

@FeignClient(url = "https://www.wikidata.org/w")
// https://www.wikidata.org/w/api.php?action=wbsearchentities&search=apple&language=en&format=json
public interface WikidataClient {

    @RequestMapping(value = "/api.php?action=wbsearchentities&language=en&format=json", method = GET)
    WebsearchEntities searchForEntities(@RequestParam("search") final String search);
}

使用类似于此处的@Autowired表示法：Section called : Creating Feign Clients Manually

这样做的目的是稍后注入自定义解码器和编码器 . 我已经对它进行了一段时间的实践，而我所能实现的只是破坏了整个事情 .

我从这里和那里收集了一些线索，并设法达到我创建Configuration类的程度：

FeignConfig

@Import(FeignClientsConfiguration.class)
public class FeignConfig {
    public WikidataClient fooclient;
    @Autowired
    public FeignConfig(Encoder encoder, Decoder decoder){
        this.fooclient = Feign.builder()
                .encoder(encoder)
                .decoder(decoder)
                .target(WikidataClient.class,"https://www.wikidata.org/w");
    }
}

改性

WikidataClient

界面略

//@FeignClient(url = "https://www.wikidata.org/w")
// https://www.wikidata.org/w/api.php?action=wbsearchentities&search=apple&language=en&format=json
public interface WikidataClient {

    @RequestMapping(value = "/api.php?action=wbsearchentities&language=en&format=json", method = GET)
    WebsearchEntities searchForEntities(@RequestParam("search") final String search);
}

并尝试使用上述类代替

WikidataRunner

@Component
public class WikidataRunner implements CommandLineRunner {
    private final WikidataClient omdbClient;
    @Autowired
    public WikidataRunner(WikidataClient omdbClient){
        this.omdbClient = omdbClient;
        this.feignConfig = new FeignConfig(new Encoder.Default(), new Decoder.Default());
    }

    FeignConfig feignConfig;
    @Override
    public void run(final String... args) throws Exception {
        final WebsearchEntities apple = feignConfig.fooclient.searchForEntities("apple");
        System.out.println(apple);
    }
}

我得到的只是不同类型的Bean错误

2017-07-19 08：02：29.056 ERROR 2018 ---线程“main”中的异常org.springframework.beans.factory.UnsatisfiedDependencyException：在文件[/ home / mibi / IdeaProjects中定义的名称'wikidataRunner'创建bean时出错/FUFEign/feign-helloworld/target/classes/codes/walery/research/feign/wikidata/WikidataRunner.class]：通过构造函数参数表达的不满意的依赖关系，类型为[codes.walery.research.feign.wikidata.WikidataClient]的索引0 ::没有找到[codes.walery.research.feign.wikidata.WikidataClient]类型的限定bean用于依赖：预期至少有1个bean可以作为此依赖项的autowire候选者 . 依赖注释：{};嵌套异常是org.springframework.beans.factory.NoSuchBeanDefinitionException：找不到类型为[codes.walery.research.feign.wikidata.WikidataClient]的限定bean依赖：预期至少有1个bean符合此依赖关系的autowire候选者 . 依赖注释：{} [main] at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray（ConstructorResolver.java:749）osboot.SpringApplication at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor（ConstructorResolver . java：185）：org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor（AbstractAutowireCapableBeanFactory.java:1143）的org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance（AbstractAutowireCapableBeanFactory.java:1046）中的应用程序启动失败org.springframework.beans.factory.NoSuchBeanDefinitionException：找不到类型为[codes.walery.research.feign.wikidata.WikidataClient]的限定bean依赖：预期至少有1个bean符合此依赖关系的autowire候选者 . 依赖注释：{} atg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:510）org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:482）at org . orframe.springframework.beans.factory.support.AbstractBeanFactory上的springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException（DefaultListableBeanFactory.java:1326)~ [spring-beans-4.2.1.RELEASE.jar：4.2.1.RELEASE] $ 1.getObject（AbstractBeanFactory.java:305）org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:230）at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency（DefaultListableBeanFactory.java： 1072）〜[spring-beans-4.2.1.RELEASE.jar：4.2.1.RELEASE]在org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory . java：301）org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:196）at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency（DefaultListableBeanFactory.java:967)~ [spring- bean-4.2.1.RELEASE.jar：4.2.1.RELEASE]在org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization上的org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons（DefaultListableBeanFactory.java:772） AbstractApplicationContext.java:834）org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument（ConstructorResolver.java:813）〜[spring-beans-4.2.1.RELEASE.jar：4.2.1.RELEASE] at org . springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:537）atOrg.springframework.boot.SpringApplication.refresh（SpringApplication.java:667）org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray（ConstructorResolver.java:741)~ [spring-beans-4.2.1.RELEASE.jar ：4.2.1.RELEASE] org.springframework.boot.SpringApplication.doRun（SpringApplication.java:342）... org.springframework.boot.SpringApplication.run（SpringApplication.java:273）在org中省略了18个常见框架.springframework.boot.SpringApplication.run（SpringApplication.java:980）位于org.springframework.boot.SpringApplication.run（SpringApplication.java:969）的codes.walery.research.feign.FeignHelloworldApplication.main（FeignHelloworldApplication.java:12 ）包装：org.springframework.beans.factory.UnsatisfiedDependencyException：在文件中定义名称为'wikidataRunner'的bean时出错[/ home / mibi / IdeaProjects / FUFEign / feign-helloworld / target / classes / codes / walery / research / feign /wikidata/WikidataRunner.class]：通过构造表达的不满意的依赖性或类型为[codes.walery.research.feign.wikidata.WikidataClient]的索引为0的参数::没有找到依赖的[codes.walery.research.feign.wikidata.WikidataClient]类型的限定bean：期望至少有1个bean有资格作为此依赖项的autowire候选者 . 依赖注释：{};嵌套异常是org.springframework.beans.factory.NoSuchBeanDefinitionException：没有找到类型为[codes.walery.research.feign.wikidata.WikidataClient]的限定bean用于依赖：预期至少有1个beCaused：org.springframework.beans.factory . NoSuchBeanDefinitionException：找不到类型为[codes.walery.research.feign.wikidata.WikidataClient]的限定bean依赖：预期至少有1个bean符合此依赖关系的autowire候选者 . 依赖注释：{} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException（DefaultListableBeanFactory.java:1326），它有资格作为此依赖项的autowire候选者 . 依赖注释：{} atg.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency（DefaultListableBeanFactory.java:1072）at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray（ConstructorResolver.java:749)~ [spring -beans-4.2.1.RELEASE.jar：4.2.1.RELEASE] org.springframework.beans.factory.support.ConstructorResolver上的org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency（DefaultListableBeanFactory.java:967） .resolveAutowiredArgument（ConstructorResolver.java:813）在org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor（ConstructorResolver.java:185）〜[spring-beans-4.2.1.RELEASE.jar：4.2.1.RELEASE] org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray（ConstructorResolver.java:741）org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor（AbstractAutowireCapableBeanFactory.java:1143）〜[spring- beans-4.2.1.RELEASE.jar：4.2.1.RELEASE] ...在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance（AbstractAutowireCapableBeanFactory.java:1046）〜[spring-beans-4.2 . 1.RELEASE.jar：4.2.1.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:510)~ [spring-beans-4.2.1.RELEASE.jar：4.2.1 .RELEASE] org.springframework.beans上的org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:482）〜[spring-beans-4.2.1.RELEASE.jar：4.2.1.RELEASE] .factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:305）〜[spring-beans-4.2.1.RELEASE.jar：4.2.1.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton （DefaultSingletonBeanRegistry.java:230）〜[spring-beans-4.2.1.RELEASE.jar：4.2.1.RELEASE] org.springframework.beans.factory.support.AbstractBean org.springframework.beans.factory.support.AbstractBeanFactory.getBean中的Factory.doGetBean（AbstractBeanFactory.java:301）〜[spring-beans-4.2.1.RELEASE.jar：4.2.1.RELEASE]（AbstractBeanFactory.java:196 ）〜[spring-beans-4.2.1.RELEASE.jar：4.2.1.RELEASE] org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons（DefaultListableBeanFactory.java:772)~ [spring-beans-4.2 . 1.RELEASE.jar：4.2.1.RELEASE] atorg.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:834）〜[spring-context-4.2.1.RELEASE.jar：4.2.1.RELEASE] org.springframework.context.support.AbstractApplicationContext.refresh （AbstractApplicationContext.java:537）〜[spring-context-4.2.1.RELEASE.jar：4.2.1.RELEASE]在org.springframework.boot.SpringApplication.refresh（SpringApplication.java:667）[spring-boot-1.3 .0.M5.jar：1.3.0.M5]在org.springframework.boot.SpringApplication.doRun（SpringApplication.java:342）[spring-boot-1.3.0.M5.jar：1.3.0.M5] at org.springframework.boot.SpringApplication.run（SpringApplication.java:273）[spring-boot-1.3.0.M5.jar：1.3.0.M5] org.springframework.boot.SpringApplication.run（SpringApplication.java： 980）[spring-boot-1.3.0.M5.jar：1.3.0.M5] org.springframework.boot.SpringApplication.run（SpringApplication.java:969）[spring-boot-1.3.0.M5.jar ：1.3.0.M5]在codes.walery.research.feign.FeignHelloworldApplication.main（FeignHelloworldApp） lication.java:12）[classes /：na] 2017-07-19 08：02：29.059 INFO 2018 --- [Thread-1] scaAnnotationConfigApplicationContext：关闭org.springframework.context.annotation.AnnotationConfigApplicationContext@3d8314f0：启动日期[Wed Jul 19 08:02:24 CEST 2017];上下文层次结构的根过程完成，退出代码为1

我不会否认在Spring和Feign做新手 . 事情是我需要拼命地解决这两个问题 . 到目前为止，我花了10个小时研究Feign无济于事 .

请寻求帮助和指导

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